Provided are: a propylene-based resin composition in which the content of a propylene-based polymer (A) that satisfies requirements (A1) to (A5) is 40-85 parts by mass, the content of an ethylene·α-olefin copolymer (B) that satisfies requirements (B2) and (B3) is 5-30 parts by mass, and the content of a polymer (C) that is a propylene homopolymer and/or a propylene·α-olefin random copolymer is 0-30 parts by mass (here, the total content of components (A), (B) and (C) is 100 parts by mass), and in which the content of barium sulfate is 5-10 parts by mass, the content of talc is 1-5 parts by mass and the content of a nucleating agent is 0.1-0.6 parts by mass, each relative to a total of 100 parts by mass of components (A), (B) and (C); and a molded body and a container that comprise said composition. Details of the requirements are shown in the description.
C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
3.
BIAXIALLY STRETCHED FILM AND METHOD FOR PRODUCING THE SAME
This biaxially stretched film has a layer obtained from a material containing an ethylene-based polymer. The ethylene-based polymer has a melt flow rate (MFR) of 0.01-5.0 g/10 min, a density of at least 941 kg/m3but less than 970 kg/m3, and a melt tension of 31-250 mN. The ratio, Mw/Mn, between the weight average molecular weight (Mw) and the number average molecular weight (Mn) of the ethylene-based polymer is 6.1 or more, Mw and Mn being measured by gel permeation chromatography (GPC).
An object of the present invention is to obtain a film further excellent in strength, low-temperature sealability, and blocking resistance, and the present invention relates to a film comprising an ethylene/α-olefin copolymer (A) having the following requirements (a1), (a2), and (a3).
(a1): the melt flow rate (MFR) measured at 190° C. and a load of 2.16 kg is in a range of 0.1 to 8 g/10 minutes,
(a2): a density is in a range of 885 to 915 kg/m3, and 10
(a3): a melt tension is in a range of 40 to 190 mN.
The layered structure of the present invention is a layered structure formed by directly layering a resin cured layer (ii) containing a curable resin (E) having a urethane bond, on a molded body (i) composed of a polypropylene-based resin composition,
wherein the polypropylene-based resin composition contains 5 to 47 parts by mass of a propylene-based polymer (A) having an MFR of 50 to 150 g/10 min, and an amount of a decane-soluble portion of 6 to 15% by mass, 20 to 30 parts by mass of a propylene homopolymer (B) having an MFR of 10 to 500 g/10 min, 23 to 30 parts by mass of an ethylene/α-olefin copolymer (C) being a random copolymer of ethylene and an α-olefin having 4 to 8 carbon atoms, and having a density of 0.850 to 0.880 g/cm3, an MFR of 0.5 to 30 g/10 min, and a melting point peak of 110° C. or more, and 30 to 40 parts by mass of an inorganic filler (D).
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B32B 37/16 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
6.
POLYPROPYLENE-BASED RESIN COMPOSITION AND USE THEREOF
A polypropylene-based resin composition containing: 5 to 47 parts by mass of a propylene-based polymer (A) having an MFR of 50 to 150 g/10 min and an amount of a decane-soluble portion of 6 to 15% by mass, 20 to 30 parts by mass of a propylene homopolymer (B) having an MFR of 10 to 500 g/10 min, 23 to 30 parts by mass of an ethylene/α-olefin copolymer (C) being a random copolymer of ethylene and an α-olefin having 4 to 8 carbon atoms, and having a density of 0.850 to 0.880 g/cm3, an MFR of 0.5 to 30 g/10 min, and a melting point peak of 110° C. or more, and 30 to 40 parts by mass of an inorganic filler (D), provided that a total amount of the components (A) to (D) is 100 parts by mass.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Long glass fiber reinforced polypropylene resins,
unprocessed; polypropylene resins, unprocessed; unprocessed
plastics; synthetic resins, unprocessed; artificial resins,
unprocessed; wood pulp; paper pulp; synthetic pulp;
industrial chemicals; industrial chemicals for use in the
manufacture of polypropylene resins; chemicals for use in
the processing of plastics.
8.
PROPYLENE-BASED POLYMER COMPOSITION, FILM, AND MULTILAYER FILM
[Problem] To provide a propylene-based polymer composition from which a film having a good balance of excellent rigidity and low-temperature sealability can be formed. [Solution] This propylene-based polymer composition contains: a propylene/α-olefin copolymer (A) having an intrinsic viscosity [η] of 10-15 dl/g and containing 5.0-10 mol% of a constitutional unit derived from an α-olefin (excluding propylene); and a propylene-based polymer (B) having an intrinsic viscosity [η] of 0.5-5 dl/g, wherein the mass fraction of the copolymer (A) is 0.1-8 mass% and the mass fraction of the polymer (B) is 92-99.9 mass%, with respect to 100 mass% of the total of the copolymer (A) and the polymer (B).
[Problem] To provide a propylene polymer composition capable of forming a film having excellent and well-balanced rigidity and tensile strength in the perpendicular direction (TD) with respect to the extrusion direction (MD) during the film formation. [Solution] Provided is a propylene polymer composition containing: a propylene/alpha-olefin copolymer (A) having a limiting viscosity [η] of 10 to 15 dl/g and a structural unit derived from alpha-olefin (excluding propylene) at 0.1 to 6.0 mol%; and a propylene polymer (B) having a limiting viscosity [η] of 0.5 to 5 dl/g, where, with respect to the total of the copolymer (A) and the polymer (B), which is 100 mass%, the mass fraction of the copolymer (A) is 0.1 to 8 mass%, and the mass fraction of the polymer (B) is 92 to 99.9 mass%.
Provided is a film containing an ethylene polymer satisfying the following requirements (a1) to (a4): (a1) having a density of 940-980 kg/m3; (a2) having a melt flow rate (MFR) of 0.01-10 g/10 min as measured at 190°C under a load of 2.16 kg; (a3) containing 300 ppm or less of a low molecular weight component; and (a4) having a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) (molecular weight distribution: Mw/Mn) of 10 or less as measured by gel permeation chromatography (GPC).
[Problem] The present invention addresses the problem of providing a film which has an excellent balance among rigidity, low shrinkage and longitudinal tear strength, and which can be used as a base material of a packaging material that has excellent gloss. [Solution] The present invention provides a stretched film which contains: an ethylene polymer wherein (a1) the melt flow rate (MFR) as measured at 190°C under a load of 2.16 kg is 0.2 g/10 minutes to 10 g/10 minutes, and (a2) the density is 940 to 970 kg/m3; and 100 ppm to 2,500 ppm of a nucleator relative to 100 parts by mass of the ethylene polymer. The present invention also provides: a packaging material which is composed of this stretched film; and a method for producing this stretched film.
B29C 55/02 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets
B29C 55/06 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
[Problem] To provide a composition that comprises an ethylene-based polymer, a propylene-based polymer and a compatibilizing material and has excellent impact resistance performance and tensile elongation performance. [Solution] Provided is a polymer composition comprising 40 to 99 parts by mass of an ethylene-based polymer (A), 1 to 60 parts by mass of a propylene-based polymer (B), and 1 to 30 parts by mass of a propylene-ethylene block copolymer (C) satisfying requirements (1) to (4) (wherein the total amount of the components (A) and (B) is 100 parts by mass). Requirement (1): the MFR (230°C, 2.16 kgf) is 0.05 to 5 g/10 min. Requirement (2): the amount of a 23°C-n-decane-soluble fraction is 30 to 55% by mass. Requirement (3): the ethylene content in the 23°C-n-decane-soluble fraction is 25 to 55 mol%. Requirement (4): the limiting viscosity [η] (135°C, tetralin) of the 23°C-n-decane-soluble fraction is 6.5 to 10.0 dl/g.
C08L 23/10 - Homopolymers or copolymers of propene
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
A single-layer or multi-layer sealant film composed of an ethylene polymer, the sealant film including, on a surface layer of the sealant film, a layer composed of an ethylene polymer (A) satisfying: (i) a density is in a range of more than 910 kg/m3 to less than 940 kg/m3; (ii) a melt flow rate (MFR) at 190° C. and a load of 2.16 kg in accordance with JIS K7210-1 is in a range of 0.1 to 20 g/10 min; and (iii) a specific content of a copolymer (A2) of ethylene and an α-olefin having 4 or less carbon atoms is 0% by mass or more and 50% by mass or less, and a content of a copolymer (A1) of ethylene and an α-olefin having 5 or more carbon atoms is 26% by mass or more and 100% by mass or less.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 7/02 - Physical, chemical or physicochemical properties
H01B 3/44 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes vinyl resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
[Problem] To provide a multilayer stretched film that exhibits an excellent balance between luster, rigidity, longitudinal tear strength, and sag and has excellent recyclability. [Solution] A multilayer stretched film that combines five layers of ethylene-based polymers having respectively different melt flow rates and densities. Also provided is a laminate in which the multilayer stretched film is used as a base material, and another plastic film, a metal foil of aluminum or the like, paper, cellophane, and the like, are laminated.
B29C 55/06 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
B65D 65/40 - Applications of laminates for particular packaging purposes
[Problem] The purpose is to provide a molded body that has high commercial value in terms of the appearance of the molded body while maintaining the levels of flame retardancy and mechanical properties of a molded body made of a reinforced polypropylene resin composition in which glass fibers, flame retardant, and acid-modified polypropylene resin have been blended with polypropylene resin. [Solution] A reinforced polypropylene resin composition comprising polypropylene resin (A), phosphorus flame retardant (B), and glass fibers (C), the reinforced polypropylene resin composition being characterized in that the polypropylene resin (A) comprises an unmodified polypropylene resin (MFR (230°C, 2.16 kg load) of 100-400 g/10 min) (A-1) and an acid-modified polypropylene resin (MFR (190°C, 2.16 kg load) of 100-1000 g/10 min, graft level of acid-modified monomer 0.5-3.0 mass%, graft efficiency of acid-modified monomer more than 60%) (A-2).
C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment
17.
INJECTION MOLDED ARTICLE MADE OF PROPYLENE-BASED POLYMER COMPOSITION
An injection molded article is made of a propylene-based polymer composition containing a propylene-based polymer (A) satisfying requirements (a-i) and (a-ii) within a range of 60 to 90 mass % and an ethylene-α-olefin copolymer (B) satisfying requirements (b-i) and (b-ii) within a range of 10 to 40 mass %, provided that the total amount of (A) and (B) is 100 mass %.
[Problem to be Solved] To provide an ethylene-α-olefin copolymer that is excellent in formability and particularly excellent in mechanical strength compared to conventional ones.
[Problem to be Solved] To provide an ethylene-α-olefin copolymer that is excellent in formability and particularly excellent in mechanical strength compared to conventional ones.
[Solution] A copolymer of ethylene and one or more α-olefins having 4 to 10 carbon atoms, satisfying the following requirements (1) to (7):
(1) the density is 890 to 925 kg/m3;
(2) MFR (190° C., 2.16 kg load) is 3.0 to 15.0 g/10 min;
(3) MT (melt tension)/η* (shear viscosity) is 1.40×10−4 to 2.90×10−4 g/P;
(4) 0.01×10−13×Mw3.4≤η0 (zero shear viscosity)≤4.5×10−13×Mw3.4;
(5) −2.0≤Mz/Mw−Mw/Mn≤15;
(6) the number of vinyls and others is 0.1 to 1.0/1000 C; and
(7) a plurality of peaks is present in a melting curve of DSC.
B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
B29K 23/00 - Use of polyalkenes as moulding material
19.
ETHYLENE-alpha-OLEFIN COPOLYMER, THERMOPLASTIC RESIN COMPOSITION, AND FILM
To provide an ethylene-α-olefin copolymer capable of producing a shaped article (in particular, a film) having excellent mechanical strength and well-balanced transparency and blocking resistance with excellent formability. A copolymer of ethylene and one or more α-olefins having 4 to 10 carbon atoms, the copolymer satisfying the following requirements (1) to (6):
(1) Density of 890 to 925 kg/m3;
(2) MFR (190° C., 2.16 kg load) of 0.1 g/10 minutes or more and less than 3.0 g/10 minutes;
(3) MT (melt tension)/η* (shear viscosity) of 1.20×10−4 to 2.90×10−4 g/P;
(4) 0.01×10−13×Mw3.4≤η0 (zero shear viscosity)≤3.5×10−13×Mw3.4;
(5) −7.0≤Mz/Mw −Mw/Mn≤2.0;
(6) Multiple peaks in melting curve of DSC.
An ethylene resin composition (Z) including an ethylene-α-olefin copolymer (A) satisfying requirements (1) to (4) and an ethylene-α-olefin copolymer (B) satisfying requirements (a) to (c): (1) a density of 890 to 935 kg/m3, (2) MFR (190° C., a load of 2.16 kg) of 0.1 g/10 min or more and less than 3.0 g/10 min, (3) MT (melt tension)/η* (shear viscosity) of 1.20×10−4 to 2.90×10−4 g/P, and (4) 0.01×10−13×Mw3.4≤η0 (zero-shear viscosity)≤3.5×10−13×Mw3.4, (a) a density of 890 to 930 kg/m3, (b) MFR (190° C., a load of 2.16 kg) of 0.1 to 10 g/10 min, and (c) 1.90×10−4×Mw0.776≤[η]≤2.80×10−4×MW0.776.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
An injection foam molded body composed of a propylene resin composition, when a sample having a size of 50 mm×150 mm cut from the injection foam molded body is used to carry out a three-point bending test in which force is applied to the center position of the body with a distance between supports of 100 mm by an indenter at a bending rate of 50 mm/min, a bending elastic gradient within the range of 27 to 1,000 (N/cm), and when the injection foam molded body is subjected to a test in which a force (load) is applied to a flat surface thereof by a circular indenter with a flat tip having a diameter of 4 mm at a rate of 1 mm/min to push the indenter into the molded body, a press elastic gradient is in the range of 5 to 120 (N/mm).
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
B29C 44/34 - Component parts, details or accessoriesAuxiliary operations
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 5/32 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous both layers being foamed or specifically porous
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
[Problem] To provide a resin composition which is capable of constituting a multilayer body that has excellent extrusion lamination processability, heat resistance and flexibility, and the like. [Solution] A resin composition which contains the four components described below at a specific content ratio. (A) A propylene polymer that satisfies the following requirements: (A-1) the MFR is 0.1 to 60 g/10 minutes; (A-2) the density is 886 to 930 kg/m3; and (A-3) the melting point is 130 to 170°C. (B) A propylene polymer that satisfies the following requirements: (B-1) the MFR is 0.1 to 60 g/10 minutes; (B-2) the density is 855 to 885 kg/m3; (B-3) the melting point is 130 to 170°C; and (B-4) the Shore A hardness is 65 to 90. (C) An ethylene polymer that satisfies the following requirements: (C-1) the MFR is 0.2 to 10 g/10 minutes; (C-2) the density is 855 to 913 kg/m3; and (C-3) the melting point is less than 130°C. (D) A low-density polyethylene that satisfies the following requirements: (D-1) the MFR is 0.1 to 50 g/10 minutes; and (D-2) the density is 914 to 935 kg/m3.
Provided is a material suitable for producing a glass fiber-reinforced molded body with reduced generation of white haze while reducing the amount of a dispersing agent to be used.
Provided is a material suitable for producing a glass fiber-reinforced molded body with reduced generation of white haze while reducing the amount of a dispersing agent to be used.
A glass fiber-reinforced propylene-based resin composition, including 10 to 50 parts by mass of glass fibers; 50 to 90 parts by mass of a propylene-based resin (provided that the both in total is 100 parts by mass); 0.3 parts by mass or more of carbon black; and a polyolefin wax having an average particle size of 1 to 40 μm in an amount such that a mass ratio of the polyolefin wax to the carbon black is 0.75 to 1.5.
The present invention provides a multilayer film which has improved appearance (particularly, with fewer wrinkles), specifically, a multilayer film which is improved in terms of the degree of occurrence of wrinkles, thereby having fewer wrinkles. This multilayer film comprises: an unstretched polypropylene film which contains a propylene polymer that satisfies requirements (i) to (iii); and an inorganic oxide layer which is in contact with the film. (i) The melt flow rate (MFR) as measured at 230°C under a load of 2.16 kgf is within the range of 3 g/10 minutes to 25 g/10 minutes. (ii) The ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) as determined by GPC is within the range of 6 to 15. (iii) The ratio (Mz/Mn) of the Z-average molecular weight (Mz) to the number average molecular weight (Mn) as determined by GPC is within the range of 40 to 150.
A stretched film including a polyethylene-based resin composition satisfying the following requirements (1) to (3): (1) a melt flow rate (190° C., 2.16 kg load) is 0.01 g/10 min or more and 2.0 g/10 min or less; (2) a density is 935 kg/m3 or more and 970 kg/m3 or less; and (3) a ratio of a melt index (I21: 190° C., 21.6 kg load) to a melt index (I2: 190° C., 2.16 kg load), I21/I2 is 80 or more.
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
26.
POLYPROPYLENE-BASED RESIN COMPOSITION AND FOAM MOLDED BODY
An embodiment of the present invention relates to a polypropylene-based resin composition, or a foam molded body comprising the polypropylene-based resin composition. The polypropylene-based resin composition is a polypropylene-based resin composition (X) that: contains 20-80 parts by mass of an impact polypropylene (A) satisfying requirements (a-1) and (a-2), 10-40 parts by mass of an ethylene-based elastomer (B) satisfying requirements (b-1) and (b-2), and 10-40 parts by mass of an inorganic filler (C), the filler being talc; and satisfies requirement (x-1). (a-1) Has an MFR of 60-300 g/10 min, measured at 230°C at a load of 2.16 kg in compliance with ASTM D-1238; (a-2) Contains a propylene-ethylene copolymer identified as a decane soluble at 23°C, the propylene-ethylene copolymer having an intrinsic viscosity [η] of 4.1-10 dl/g; (b-1) Has an MFR of 0.5-30 g/10 min, measured at 190°C at a load of 2.16 kg in compliance with ASTM D-1238; (b-2) Has a density from 0.85 g/cm3to 0.875 g/cm3; (x-1) Has a content of a polypropylene component, which has a molecular weight of 106.5 or greater, of less than 0.05 mass% with respect to 100 mass% of the propylene resin composition (X).
One aspect of the present invention relates to a method for producing composition pellets that includes a step that fills a molten mixture obtained by melt mixing a propylene resin (A), a modified propylene resin (B), an optionally modified polypropylene wax (C) that satisfies specific requirements, and an organic peroxide (D) by a twin-screw extruder into an impregnation die, then passes a long glass fiber (E) bundle through the impregnation die, impregnates the long glass fiber (E) bundle with the molten mixture, and obtains a strand-shaped molded body and a step that cuts the strand-shaped molded body to obtain long glass fiber-reinforced propylene resin composition pellets.
C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment
The present invention addresses the problem of providing: a resin composition having excellent hardness and spiral flow characteristics in a well-balanced manner; and a molded body formed from the resin composition. The resin composition according to the present invention contains: 50-94 parts by mass of a crystalline propylene/ethylene block copolymer (A) that satisfies specific requirements; 1-25 parts by mass of an ethylene polymer (B) having a density of 915-980 kg/m3 and a melt flow rate (190 °C, 2.16 kg load) of 0.1-30 g/10 min; and 5-25 parts by mass of an inorganic filler (C) (where the total amount of the crystalline propylene/ethylene block copolymer (A), the ethylene-based polymer (B), and the inorganic filler (C) is 100 parts by mass).
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
C08K 3/013 - Fillers, pigments or reinforcing additives
[Problem] To provide a polyethylene film having a good balance of excellent rigidity, low heat shrinkability, and longitudinal tear strength. [Solution] This stretched film has, in the following order: a layer (a1) which contains, as a main component, an ethylene-based polymer (A) having an MFR (190ºC and load of 2.16 kg) of 0.01-10 g/10 min and a density of at least 942 kg/m3; a layer (b) which contains, as a main component, an ethylene-based polymer (B) having an MFR (190ºC and load of 2.16 kg) of 0.01-10 g/10 min and a density of at most 924 kg/m3; and a layer (a2) which contains, as a main component, an ethylene-based polymer (A) having an MFR (190ºC and load of 2.16 kg) of 0.01-10 g/10 min and a density of at least 942 kg/m3.
[Problem] To provide: a cast polypropylene film that has an excellent balance of stiffness and low-temperature heat sealability; or a cast polypropylene film that has excellent stiffness and can be heat-sealed at a low temperature. [Solution] A non-oriented film comprising a propylene polymer composition that includes a prescribed ratio of a prescribed propylene polymer (A) and a propylene/α-olefin copolymer (B) that has an MFR of 0.1-30 g/10 min and a limiting viscosity [η] of greater than 1.5 dl/g to 5.0 dl/g as measured in a tetralin solvent at 135°C and contains a prescribed quantity of a structural unit derived from an α-olefin (excluding propylene).
The purpose of the present invention is to obtain a film having more exceptional strength, low-temperature sealability, and blocking resistance. The present invention relates to a film characterized by including an ethylene-α-olefin copolymer (A) having the following requirements (a1), (a2), and (a3). (a1): The melt flow rate (MFR) measured at 190°C under a load of 2.16 kg is within the range of 0.1-8 g/10 min. (a2): The density is within the range of 885-915 kg/m3. (a3): The melt tension is within the range of 40-190 mN.
[Problem] To provide a material suitable for the production of a glass fiber-reinforced molded article which has excellent mechanical properties, and in which adjustment of color tone is easy and occurrence of white blurring is suppressed. [Solution] This glass fiber-reinforced propylene-based resin composition contains: 10-50 parts by mass of glass fibers; 50-90 parts by mass of a propylene-based resin (when the total of the glass fiber and the propylene-based resin is defined as 100 parts by mass); 0.12 parts by mass or more of carbon black; a polyolefin wax having an average particle diameter of 1-40 μm, in an amount where the mass ratio of the polyolefin wax with respect to the carbon black is 0.75-2.0; and more than 0 parts by mass but not more than 1.3 parts by mass of zinc sulfide.
Provided is an ocular instillation member including at least one component selected from an ocular instillation container main body and an ocular instillation nozzle, in which the ocular instillation container main body has a bottom part, a hollow cylindrical body part that is continuous to a circumferential edge of the bottom part, a shoulder part that is continuous to the body part, and an opening cylindrical part that is continuous to the shoulder part, each of the ocular instillation container main body and the ocular instillation nozzle contains a propylene-based polymer, and the formula (1) is satisfied. x1-x2 ≦ 60.0 mg · · · (1) [In the formula, x1 represents the mass (mg) of a dried product produced by cutting out a test specimen having a weight of 5.0 g from the body part of the ocular instillation container main body or the ocular instillation nozzle, then cutting the test specimen into a piece having a size of 3 cm × 0.3 cm, then placing the cut piece in a round-bottomed flask containing 50 mL of n-hexane, then heating the resultant solution to reflux for 4 hours, then cooling the solution to room temperature to produce a solution, then filtrating the solution to produce a filtrate, then placing the filtrate in an evaporation pan, then drying the filtrate in a water bath, and then drying the resultant product at 105°C for 2 hours; and x2 represents the mass (mg) of a dried product produced by performing a blank test in the same manner as mentioned above except that the test specimen is not used.]
A61J 1/05 - Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids
B65D 65/00 - Wrappers or flexible coversPackaging materials of special type or form
This polypropylene-based resin composition contains: 5-47 parts by mass of a propylene-based polymer (A) which has an MFR of 50-150 g/10 min and a decane soluble part amount of 6-15 mass%; 20-30 parts by mass of a propylene homopolymer (B) which has an MFR of 10-500 g/10 min; 23-30 parts by mass of an ethylene/α-olefin copolymer (C) that is a random copolymer of ethylene and a C4-8 α-olefin, has a density of 0.850-0.880 g/cm3, has an MFR of 0.5-30 g/10 min, and has a melting point peak of 110°C or higher; and 30-40 parts by mass of an inorganic filler (D) (the total amount of components (A)-(D) being 100 parts by mass).
C08F 297/00 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
C08K 3/013 - Fillers, pigments or reinforcing additives
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
This layered structure is the result of a resin cured layer (ii) that includes a curable resin (E) that includes a urethane linkage being layered directly onto a molded body (i) that comprises a polypropylene resin composition. The polypropylene resin composition contains 5–47 parts by mass of a propylene polymer (A) that has a MFR of 50–150 g/10 min and a decane-soluble fraction of 6–15 mass%, 20–30 parts by mass of a propylene homopolymer (B) that has a MFR of 10–500 g/10 min, 23–30 parts by mass of an ethylene/α-olefin copolymer (C) that is a random copolymer of ethylene and a C4–8 α-olefin and has a density of 0.850–0.880 g/cm3, a MFR of 0.5–30 g/10 min, and a melting point peak of at least 110°C, and 30–40 parts by mass of an inorganic filler (D).
The purpose of the present invention is to obtain a non-stretched film having improved rigidity. The present invention relates to a non-stretched film comprising a propylene polymer composition that contains: 1-40 mass% of a propylene polymer (A) which contains 20-50 mass% of a propylene polymer (a1) having a limiting viscosity [η] of 10-12 dl/g as measured at 135°C in a tetralin solvent and 50-80 mass% of a propylene polymer (a2) having a limiting viscosity [η] of 0.5-1.5 dl/g as measured at 135°C in a tetralin solvent (where the combined amount of (a1) and (a2) is 100 mass%); and 60-99 mass% of a specific propylene homopolymer (B) (where the combined amount of (A) and (B) is 100 mass%).
An injection-molded article for medical use obtained by using a medical propylene-ethylene-based resin composition including 88 to 95 parts by mass of a propylene-ethylene resin composition (A) that contains more than 90% and equal to less than 97% by mass of a propylene-ethylene copolymer (a) having an ethylene content of 1 to 5% by mass, and a melt flow rate conforming to JIS K7210 (230° C., 2.16 kg load) being 10 to 100 g/10-min, and equal to more than 3% and less than 10% by mass of a propylene-ethylene copolymer (b) having an ethylene content of 15 to 22% by mass and an MFR of 1 to 50 g/10-min, 5 to 12 parts by mass of an elastomer (B) that is an ethylene-α-olefin random copolymer which is an ethylene-α-olefin random copolymer having a density of 0.880 to 0.920 g/cm3; and 0.01 to 0.20 parts by mass of a weather-resistant stabilizer.
An ethylene-based resin composition having the following requirements (1) to (4) as a material such as packaging material, a film having strength for the protection and rigidity (e.g., easy opening and self-standability on packaging contents) in an excellent balance: (1) A melt flow rate (190° C., 2.16 kg load) is 0.1 g/10 min or more and 1.0 g/10 min or less, (2) a density is 915 kg/m3 or more and 935 kg/m3 or less, (3) a melt index (121: 190° C., 21.6 kg load) is 45 or less, and (4) a ratio of the amount of heat of fusion at 120° C. or higher (Hh/Ht), which is the ratio of the amount of heat of fusion (Hh) determined from a DSC curve at 120° C. or higher to the total amount of heat of fusion (Ht) determined from a DSC curve of DSC measurement, is 10% or more and 55% or less.
The purpose of the present invention is to obtain a propylene-based resin composition that is suitable for obtaining a foam molded body having uniform cell diameter, good appearance and excellent surface impact resistance. The present invention pertains to a propylene-based resin composition characterized by comprising: 50-90 mass% of a propylene-based polymer (A) containing 5-22 mass% of a propylene-ethylene copolymer (a1) that is specified as an n-decane soluble portion, and 78-95 mass% [provided that the total amount (a1)+(a2) is regarded as 100 mass%] of a propylene homopolymer (a2); 5-50 mass% of a copolymer (B) containing an alkenyl aromatic compound-derived unit; and 0-20 mass% [provided that the total amount (A)+(B)+(C) is regarded as 100 mass%] of an ethylene-based copolymer (C) having an MFR of 20-40 g/10 min.
C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
C08L 25/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ringCompositions of derivatives of such polymers
An object of the present invention is to provide a film for a capacitor such that the film excels in high-temperature dielectric breakdown voltage (high-temperature BDV) and has blocking resistance, and bleeding-out of, for instance, a nucleating agent is suppressed even after long-term storage. The present invention pertains to a multilayer polypropylene film for a capacitor, the film including a base layer composed of a propylene polymer composition containing a propylene homopolymer (X) and 0.0001 to 0.05 mass % of a polymer-based α-crystal nucleating agent (C), and a front layer or a back layer composed of a propylene-based polymer (Y) on at least one surface of the base layer, wherein the base layer and the front layer or back layer are stretched.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
A molded product of a polypropylene-based resin composition, without containing an inorganic filler, and obtained by a polypropylene-based resin composition that does not contain an inorganic filler and includes: 60 to 90 parts by mass of a polypropylene-based resin (A) including 30 to 80 parts of a propylene-based polymer (a-1) having an MFR of 120 to 250 g/10 min and having 98 to 100 mol % of a propylene constituent unit, and 0 to 30 parts of a propylene/ethylene copolymer (a-2) having an intrinsic viscosity [η] of 4 to 7 dl/g and having 30 to 60 mol % of an ethylene constituent unit; 10 to 40 parts of an ethylene/α-olefin copolymer (B) having an MFR of 0.1 to 7 g/10 min and having an ethylene content of 65 to 90 mol %; 0.2 to 1 part of a fatty acid amide (C); and 0.1 to 1 part of a surfactant (D).
A fiber-reinforced polypropylene-based resin composition is disclosed that includes a polypropylene-based resin (A); an unsaturated carboxylic acid-modified polypropylene-based resin (B) in which the amount of a polypropylene-derived C24 or lower oligomer component that volatilizes when heated at 150° C. for 30 minutes is less than 200 μg/g; and reinforcing fibers (C). Also disclosed is a method for producing the fiber-reinforced polypropylene-based resin composition described above. The method includes a step of obtaining the unsaturated carboxylic acid-modified polypropylene-based resin (B) by kneading a polypropylene, and an unsaturated carboxylic acid or a derivative thereof together with an organic peroxide at 170 to 200° C.
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
43.
POLYOLEFIN-BASED RESIN COMPOSITION INCLUDING PIGMENT, COLORED RESIN PELLET, AND METHOD FOR PRODUCING THE SAME
A polyolefin-based resin composition and a colored resin pellet having good colorant dispersibility and low fogging properties and particularly preferred for the production of a molded article for an interior article or interior member of an automobile, by dosing 0.01 parts by weight or more and 2.0 parts by weight or less of a colorant including at least one pigment selected from a group consisting of carbon black and an organic pigment, and 0.01 parts by weight or more and 2.0 parts by weight or less of a synthetic wax having an average particle diameter of 1 μm or more and 40 μm or less, based on 100 parts by weight of a resin material component including a polyolefin-based resin.
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
B29B 9/10 - Making granules by moulding the material, i.e. treating it in the molten state
A propylene polymer composition includes a propylene homopolymer (A) having an intrinsic viscosity [η] measured in a tetralin solvent at 135° C. in the range of 7 to 12 dl/g, a propylene polymer (B) having an intrinsic viscosity [η] in the range of not less than 0.21 dl/g and less than 0.54 dl/g, and having a proportion of a component eluted at a temperature of not more than −20° C. in TREF in the range of not more than 3.5 mass %, and a propylene polymer (C) having an intrinsic viscosity [η] in the range of not less than 0.54 dl/g and less than 2.6 dl/g, wherein the content of (A) is 0.5 to 47.5 mass %, the content of (B) is 5 to 95 mass % and the content of (C) is 2.5 to 85.5 mass %, based on the total of (A), (B) and (C).
The purpose of the present invention is to obtain an injection molded article made of a propylene-based polymer composition that has high transparency, high stiffness and high impact strength, in other words, that is well-balanced in transparency, impact strength and stiffness. The present invention pertains to an injection molded article made of a propylene-based polymer composition, said propylene-based polymer composition comprising 60-90 mass% of propylene-based polymer (A) satisfying the following requirements (a-i) and (a-ii) and 10-40 mass% of ethylene/α-olefin copolymer (B) satisfying the following requirements (b-i) and (b-ii) [provided that the total amount of (A) and (B) is regarded as 100 mass%]. Requirement (a-i): The melt flow rate, which is measured at a temperature of 230°C under a load of 2.16 kg in accordance with JIS K6921, is in the range of 1-50 g/10 min. Requirement (a-ii): The content of α-olefin(s) other than propylene determined by infrared spectroscopy is 1 mass% or less (including 0). Requirement (b-i): The melt flow rate, which is measured at a temperature of 190°C under a load of 2.16 kg in accordance with JIS K6921, is in the range of 0.1-15 g/10 min. Requirement (b-ii): The density measured in accordance with JIS K6922 is in the range of 900-920 kg/m3.
The objective of the present invention is to obtain, by using a molding method called injection foam molding, an injection foam molded body which, while having the stiffness as a characteristic of injection foaming, also has cushioning properties giving soft sensation when the injection foam molded body is pressed with a finger, the properties not being obtainable with conventional injection foam molded bodies. The present invention relates to an injection foam molded body which is composed of a propylene-based resin composition and is characterized in that: when a three-point bending test is carried out in which a sample cut out from the injection foam molded body in a size of 50 mm × 150 mm is used and a force is applied to a central position of a supporting interval of 100 mm with an indenter at a bending speed of 50 mm/min, in a "load-deflection curve" obtained with a deflection amount being between 0 and 10 mm, a bending elasticity gradient evaluated pursuant to JIS K7221-2 is in a range of 27-1,000 (N/cm); and when a test of pressing a round indenter of 4 mm in diameter with a flat fore end into a flat portion of the injection foam molded body by applying a force (load) at a speed of 1 mm/min is carried out, in a "force-deformation amount curve" obtained with the amount of reduction in the thickness of the injection foam molded body being between 0 and 10%, the pressing elasticity gradient, which is an elasticity gradient upon pressing evaluated pursuant to JIS K7220, is in a range of 5-120 (N/mm).
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
The purpose of the present invention is to obtain an injection foam molded body that has rigidity, which is the characteristic of injection foaming, by using a molding method called injection foam molding, and has cushioning which is a characteristic that could not be obtained with a conventional injection foam molded body and in which softness is felt when pushing a foam molded body with a finger. The present invention pertains to an injection foam molded body composed of a propylene-based resin composition, the injection foam molded body being characterized in that: when a three-point bending test, in which a sample obtained by cutting the injection foam molded body into a size of 50 mm×150 mm is used and a force is applied to the center position of a support interval of 100 mm with an indenter at a bending speed of 50 mm/min, is conducted, the bending elastic gradient, which is evaluated in accordance with JIS K 7221-2, in a "load-deflection curve" obtained when the deflection is 0-10 mm is in the range of 27-1,000 (N/cm); and when a test, in which a force (load) is applied to a flat surface part of the injection foam molded body with a circular indenter having a diameter of 4 mm and a flat tip at a speed of 1 mm/min and the circular indenter is thus pushed into the molded body, is conducted, the pushing elastic gradient, which is an elastic gradient at the time of being pushed and is evaluated in accordance with JIS K 7220, in a "force-deformation amount curve" obtained when the reduction amount of the thickness of the injection foam molded body is 0-10% is in the range of 5-120 (N/mm).
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
[Problem] To provide an ethylene-α-olefin copolymer superior in formability and particularly superior in mechanical strength to conventional ones. [Solution] A copolymer of ethylene satisfying the following requirements (1) to (7) and α-olefin having 4-10 carbon atoms: (1) Density: 890-925 kg/m3; (2) MFR (190°C, 2.16 kg load): 3.0-15.0 g/10 min; (3) MT (melt tension)/η*(shear viscosity): 1.40 × 10-4-2.90 × 10-4g/P; (4) 0.01 × 10-13× Mw3.400 (zero shear viscosity) ≤ 4.5 × 10-13× Mw3.4; (5) -2.0 ≤ Mz/Mw – Mw/Mn ≤ 15; (6) Number of vinyls and the like: 0.1-1.0/1000 C; and (7) Plurality of peaks being present on melting curve of DSC.
[Problem] To provide an ethylene resin capable of producing by excellent moldability a molded body (especially a film) having excellent mechanical strength and an excellent balance of transparency and blocking resistance. [Solution] An ethylene resin composition (Z) including an ethylene-α-olefin copolymer (A) that satisfies requirements (1)-(4) and an ethylene-α-olefin copolymer (B) that satisfies requirements (a)-(c). (1) Density is 890-935 kg/m3(2) MFR (190°C, 2.16 kg load) is 0.1 g/10 min to less than 3.0 g/10 min (3) MT (melt tension)/η*(shear viscosity) is 1.20×10-4to 2.90×10-4g/P (4) 0.01×10-13× Mw3.400 (zero shear viscosity) ≤ 3.5×10-13× Mw3.4(a) Density is 890-930 kg/m3(b) MFR (190°C, 2.16 kg load) is 0.1-10 g/10 min (c) 1.90×10-4× Mw0.776≤ [η] ≤ 2.80×10-4× Mw0.776
[Problem] To provide an ethylene-α-olefin copolymer which has excellent moldability and can be molded into a molded article (particularly a film) having excellent mechanical strength and an excellent balance between transparency and blocking resistance. [Solution] Provided is a copolymer of ethylene and an α-olefin having 4 to 10 carbon atoms, which satisfies the following requirements (1) to (6). (1) The density is 890 to 925 kg/m3; (2) the MFR(190°C, loading of 2.16 kg) is 0.1 g/10 min. or more and less than 3.0 g/10 min.; (3) a [MT (melt tension)/η*(shear viscosity)] value is 1.20×10-4to 2.90×10-4g/P; (4) 0.01×10-13×Mw3.400 (zero shear viscosity) ≦ 3.5×10-13×Mw3.4; (5) -7.0 ≦ Mz/Mw-Mw/Mn ≦ 2.0; and (6) a plurality of peaks appear in a DSC melting curve.
A polypropylene resin composition including components (A) to (D) in prescribed amounts, limiting the amount of a polypropylene component having a molecular weight of 106.5 or more to less than 0.05 wt % can provide a propylene resin composition that includes an impact polypropylene and a high flow homopolypropylene and is particularly preferable for foam molding, and a molded article comprising the composition (A) Impact polypropylene that includes 5 wt % or more and 20 wt % or less of a propylene-ethylene copolymer having an intrinsic viscosity [η] of 1.5 dl/g or more and 3.8 dl/g or less and having an MFR (230° C., 2.16 kg) of 30 g/10 min to 200 g/10 min, (B) high flow homopolypropylene having MFR (230° C., 2.16 kg) of 200 g/10 min to 1000 g/10 min, (C) ethylene elastomer having an MFR (190° C., 2.16 kg) of 0.5 g/10 min to 40 g/10 min, and (D) inorganic filler.
C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers
C08J 9/10 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen
[Problem] To provide a material suitable for producing a glass fiber-reinforced molded body in which the occurrence of white haze is suppressed and the usage quantity of a dispersing agent is low. [Solution] Provided is a glass fiber-reinforced propylene-based resin composition that contains: 10-50 parts by mass of glass fibers and 50-90 parts by mass of a propylene-based resin (the total amount of these two components is 100 parts by mass); 0.3 parts by mass or more of carbon black; and a polyolefin wax having an average particle diameter of 1-40 μm at a quantity such that the mass ratio of the polyolefin wax relative to the carbon black is 0.75-1.5.
C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
A stretched film comprising a polyethylene-based resin composition satisfying requirements (1)-(3). (1) The melt flow rate (190°C, 2.16 kgw) is 0.01-2.0 g/10min. (2) The density is 935-970 kg/m 32122122:190°C, 2.16 kgw) is 80 or more.
The present invention addresses the problem of providing a sealant film and a packaging bag consisting of said film that have sufficient durability (oil resistance) practically required when oils and fats, in particular, oils and fats having components extracted from spices, are filled and packaged for storage, transportation, etc. The present invention relates to a single-layer or multi-layer sealant film composed of an ethylene polymer, the sealant film having, on a surface layer thereof, a layer consisting of an ethylene polymer (A) that satisfies the following requirements (i) to (iii). (i) The density falls within the range from above 910 kg/m3to below 940 kg/m3. (ii) The melt flow rate (MFR) under a load of 2.16 kg at 190°C falls within the range from 0.1 to 20 g/10 min in conformity to JIS K7210-1. (iii) The content of a copolymer (A2) of ethylene and α-olefin having a carbon number of 4 or less is 0-50 mass%, and the content of a copolymer (A1) of ethylene and α-olefin having a carbon number of 5 or greater is 26-100 mass%.
A propylene resin composition includes a propylene polymer (A) satisfying requirements (1) to (3) below: (1) having a number average molecular weight (Mn) measured by gel permeation chromatography (GPC) of 5000 to 22000; (2) having a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) measured by gel permeation chromatography (GPC) being 1.2 to 3.5; and (3) having a proportion of a component eluted at a temperature of not more than −20° C. in temperature rising elution fractionation (TREF) being not more than 3.5 mass %.
A long fiber-reinforced propylene resin composition, including a long fiber-reinforced resin pellet; an ethylene polymer that has a density of 865 to 950 kg/m3, a melting point of 50 to 105° C., and a heat of fusion of 52 J/g or more and is optionally modified; and optionally, a propylene polymer, wherein the long fiber-reinforced resin pellet is a pellet including a propylene polymer, a reinforcing fiber, and a modified polypropylene.
C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
The present invention relates to an olefin-based resin (β) satisfying the following requirements (I) to (VI). (I) The olefin-based resin (β) includes an olefin-based graft polymer [R1] comprising a main chain consisting of an ethylene/α-olefin copolymer and a side chain consisting of an ethylene polymer. (II) The olefin-based resin (β), in an examination by differential scanning calorimetry (DSC), shows a fusion peak in the range of 60-130°C and has a quantity of heat of fusion ΔH due to the fusion peak in the range of 5-100 J/g. (III) The proportion E of components soluble in orthodichlorobenzene having a temperature of 20°C or lower, as determined with a cross-fractionation chromatograph (CFC), is 65 mass% or less. (IV) The glass transition temperature Tg, as determined by differential scanning calorimetry (DSC), is in the range of -80 to -65°C. (V) The intrinsic viscosity [ƞ] measured in 135°C decalin is in the range of 0.5-1.2 dl/g. (VI) The MFR obtained at 190°C and a load of 2.16 kg in accordance with ASTM D1238E is in the range of 35-180 g/10 min. This olefin-based resin has excellent pellet handleability and, when used as a modifier for polypropylene resins, can give propylene-based resin compositions having an excellent balance among flowability, impact resistance, and a low coefficient of linear expansion.
C08F 255/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group on to polymers of olefins having two or three carbon atoms
C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C08L 23/10 - Homopolymers or copolymers of propene
C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
According to the present invention, an ethylene resin composition which satisfies the requirements (1) to (4) as a material for packaging materials and the like enables the achievement of a film that has an excellent balance between the strength for protecting the contents and the stiffness (openability upon filling of the contents into a packaging material, free-standing properties and the like). (1) The melt flow rate (at 190°C under a load of 2.16 kg) is from 0.1 g/10 min to 1.0 g/10 min. (2) The density is from 915 kg/m3to 935 kg/m3. (3) The melt index (I21 at 190˚C under a load of 2.16 kg) is 45 or less. (4) The ratio of the amount of melting heat (Hh) as determined from the DSC curve at 120°C or higher to the total amount of melting heat (Ht) as determined from the DSC curve of the DSC measurement, namely, the amount of melting heat ratio (Hh/Ht) at 120°C or higher is from 10% to 55%.
Disclosed is a fiber-reinforced polypropylene resin composition comprising: a polypropylene resin (A); an unsaturated carboxylic acid-modified polypropylene resin (B) that contains less than 200 μg/g of a polypropylene-derived oligomer component having 24 or fewer carbon atoms and that evaporates when heated for 30 minutes at 150℃; and reinforcing fibers (C). Also disclosed is a method for producing the fiber-reinforced polypropylene resin composition, the method comprising a step for obtaining the unsaturated carboxylic acid-modified polypropylene resin (B) by kneading polypropylene and an unsaturated carboxylic acid or a derivative thereof with an organic peroxide at 170 to 200℃.
C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment
60.
POLYPROPYLENE RESIN COMPOSITION AND MOLDED ARTICLES THEREFROM
Provided is a polypropylene resin composition which does not contain inorganic filler and comprises 60-90 mass parts of a polypropylene resin (A), 10-40 mass parts of an ethylene · α-olefin copolymer (B) having an MFR of 0.1-7 g/10 min and an ethylene content ratio of 65-90 mol, 0.2-1 mass parts of a fatty acid amide (C), and 0.1-1 mass parts of a surfactant (D) (wherein the sum of (A) and (B) is 100 mass parts). The polypropylene resin (A) comprises 30-80 mass parts of a propylene polymer (a-1) having an MFR of 120-250 g/10 min and 98-100 mol% propylene constituent unit, and 0-30 mass parts of a propylene · ethylene copolymer (a-2) having an intrinsic viscosity [η] of 4-7 dl/g and 30-60 mol% ethylene constituent unit. The polypropylene resin composition provides molded articles that, even without the incorporation of inorganic filler, exhibit an excellent impact resistance and an excellent resistance to scratching by scuffing.
An injection-molded article for medical use obtained using a medical propylene-ethylene resin composition containing: 88-95 parts by mass of a propylene-ethylene resin composition (A) containing more than 90 mass% but not more than 97 mass% of a propylene-ethylene copolymer (a) having an ethylene content of 1-5 mass% and a melt flow rate (also hereinafter abbreviated as "MFR") of 10-100 g/10 min as measured in accordance with JIS K7210 (230°C, 2.16-kg load), and not less than 3 mass% but less than 10 mass% of a propylene-ethylene copolymer (b) having an ethylene content of 15-22 mass% and an MFR of 1-50 g/10 min (the sum of (a) and (b) being 100 mass%); 5-12 parts by mass of an elastomer (B) which is an ethylene-α-olefin random copolymer having a density of 0.880-0.920 g/cm3 (the sum of (A) and (B) being 100 parts by mass); and 0.01-0.20 parts by mass of a weather-resistance stabilizer, wherein the injection-molded article is sterilized by γ rays or electron beams.
The purpose of the present invention is to obtain a film for a capacitor, the film exhibiting excellent high temperature dielectric breakdown strength (high temperature BDV), exhibiting blocking resistance, and suppressing bleeding out of a nucleating agent or the like even when stored for long period. The present invention relates to a multilayer polypropylene film for a capacitor, the film being characterized: by having a front layer or back layer comprising a propylene-based polymer (Y) on at least one surface of a base layer comprising a propylene polymer composition containing a propylene homopolymer (X) and 0.0001-0.05 mass% of a polymer-based α crystal nucleating agent (C); and in that the base layer and the front layer or back layer are stretched.
Disclosed is a propylene-based resin composition comprising more than 15 parts by mass and 40 parts by mass or less of an ethylene/α-olefin copolymer (E1) and 4 to 20 parts by mass of an ethylene/α-olefin/diene copolymer (E2), and comprising also a propylene-based polymer (P1) having an amount of a n-decane-soluble part at 23° C. of 5 to 25% by mass, wherein the ethylene content of the n-decane-soluble part is more than 40% by mass and 60% by mass or less, a propylene homopolymer (P2) and an inorganic filler (F) [providing that the total amount of the components (P1), (P2), (E1), (E2) and (F) is taken as 100 parts by weight]. The propylene-based resin composition is capable of producing a molded article which is excellent in mechanical properties, unnoticeable flow marks, low gloss.
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
64.
Propylene-based polymer, method for producing the same, propylene-based resin composition and molded article
An object of the present invention is to provide a highly heat resistant and highly rigid propylene-based polymer having unprecedentedly high stereoregularity. The propylene-based polymer of the present invention satisfies requirements (1) to (4) and preferably requirement (5): (1) an average meso chain length is 800 to 100,000; (2) a MFR is 0.5 to 1,000 g/10 minutes; (3) a ratio of Mw to Mn, Mw/Mn, as measured by GPC is 4.2 to 20; (4) when the ratio of a component which elutes at a temperature of 122° C. or more as measured by temperature rising elution fractionation (TREF) is A % by weight and the melt flow rate of the requirement (2) is B g/10 minutes, 100≥A≥20×EXP(−0.01×B); (5) an amount of a component soluble in n-decane at 23° C. is 0.01 to 2% by weight.
In the present invention, 0.01 to 2.0 weight parts of a colorant containing at least one pigment selected from the group consisting of carbon black and organic pigments, and 0.01 to 2.0 weight parts of a synthetic wax having an average particle size of 1 to 40 μm, are blended with 100 weight parts of a resin material component that contains a polyolefin resin, thereby making it possible to provide a polyolefin resin composition and colored resin pellets that have excellent colorant dispersiveness, exhibit minimal fogging, and are particularly well-suited to the production of molded products for automobile interior parts and interior members.
C08L 23/02 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers not modified by chemical after-treatment
B29B 7/48 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
66.
THREE-DIMENSIONAL MODELING MATERIAL, THREE-DIMENSIONAL MODELED OBJECT, AND PRODUCTION METHOD FOR THREE-DIMENSIONAL MODELED OBJECT
A three-dimensional modeling material that includes a thermoplastic resin, a thermoplastic elastomer, and a filler. The filler includes talc. The filler is 5–70 mass% of the total mass of the three-dimensional modeling material.
B33Y 80/00 - Products made by additive manufacturing
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
By keeping a polypropylene component having a molecular weight of at least 106.5 to less than 0.05 wt% in a polypropylene resin composition comprising the following components (A) to (D) in prescribed amounts, a propylene resin composition can be provided that contains an impact polypropylene and a high-flow homopolypropylene and that is particularly suitable for use for foam molding. Molded articles containing the propylene resin composition can also be provided. Impact polypropylene (A) having an MFR (230°C, 2.16 kg) of 30-200 g/10 min and containing 5-20 wt% of a propylene-ethylene copolymer having an intrinsic viscosity [η] of 1.5-3.8 dl/g, high-flow homopolypropylene (B) having an MFR (230°C, 2.16 kg) of 200-1,000 g/10 min, ethylenic elastomer (C) having an MFR (190°C, 2.16 kg) of 0.5-40 g/10 min, and inorganic filler (D).
C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
C08K 3/013 - Fillers, pigments or reinforcing additives
(x3) 0.35<Δ(80)/Δ<0.85 and 0.60<Δ(100)/Δ<0.85,
wherein ΔH is the total heat of melting observed during DSC and ΔH(T) is the heat of melting observed during heating from 0° C. to T° C.
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B65D 65/40 - Applications of laminates for particular packaging purposes
[Problem] To provide a propylene-based polymer composition capable of forming a non-stretched film having superior rigidity as compared to conventional non-stretched films. [Solution] This propylene-based polymer composition is characterized by containing a specific propylene-based polymer (A) and a propylene-based polymer (B) having a melting point of 120-170°C and a limiting viscosity [η] more than 1.5 dl/g but not more than 5.0 dl/g as measured in a tetralin solvent at 135°C, wherein, with respect to the total of 100 parts by mass of the propylene-based polymer (A) and the propylene-based polymer (B), the contained amount of the propylene-based polymer (A) is 2-30 parts by mass and the contained amount of the propylene-based polymer (B) is 70-98 parts by mass.
[Problem] To provide a propylene polymer composition from which a molded article having excellent rigidity can be produced. [Solution] This propylene polymer composition contains: a propylene homopolymer (A) having an intrinsic viscosity [η] measured at 135°C in a tetralin solvent of 7 to 12 dl/g; a propylene polymer (B) having an intrinsic viscosity [η] measured at 135°C in a tetralin solvent of 0.21 or more and less than 0.54 dl/g and containing 3.5 mass% or less of a component that is eluted at a temperature of -20°C or lower by TREF; and a propylene polymer (C) having an intrinsic viscosity [η] measured at 135°C in a tetralin solvent of 0.54 or more and less than 2.6 dl/g. Relative to the total of the polymers (A), (B), and (C), the proportion of the polymer (A) is 0.5 to 47.5 mass%, the proportion of the polymer (B) is 5 to 95 mass%, and the proportion of the polymer (C) is 2.5 to 85.5 mass%.
The present invention addresses the problem of providing a polypropylene-based sheet excellent in terms of rigidity and heat resistance. A non-foamed sheet according to the present invention comprises a layer formed from a propylene-based polymer composition which comprises a specific propylene-based polymer (A) and a propylene-based polymer (B) having a melting point of 120-170°C and an intrinsic viscosity [ƞ], as determined in 135°C tetralin solvent, higher than 1.5 dl/g but not higher than 5.0 dl/g, the contents of the propylene-based polymer (A) and the propylene-based polymer (B) being 2-30 parts by mass and 70-98 parts by mass, respectively, per 100 parts by mass of the sum of the propylene-based polymer (A) and the propylene-based polymer (B).
A propylene resin composition which contains a propylene polymer (A) that satisfies the requirements (1)-(3) described below. (1) The number average molecular weight (Mn) as determined by gel permeation chromatography (GPC) is from 5,000 to 22,000. (2) The ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) as determined by gel permeation chromatography (GPC), namely Mw/Mn is from 1.2 to 3.5. (3) The ratio of the fraction that is eluted at a temperature of -20°C or less in the temperature raising elution fractionation (TREF) is 3.5% by mass or less.
C08L 23/10 - Homopolymers or copolymers of propene
B65D 1/00 - Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
B65D 85/50 - Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
74.
LONG FIBER-REINFORCED PROPYLENE-BASED RESIN COMPOSITION AND LONG FIBER-REINFORCED MOLDED BODY
[Problem] To provide a composition suitable for manufacturing a fiber-reinforced molded body having an excellent appearance and excellent mechanical properties. [Solution] The present invention provides a long fiber-reinforced propylene-based resin composition containing: a long fiber-reinforced resin pellet; a modified or unmodified ethylene-based polymer (D) having a density of 865-950 kg/m3, a melting point of 50-105°C, and a heat of fusion of at least 52 J/g; and optionally a propylene-based polymer (A2), wherein the long fiber-reinforced resin pellet contains a propylene-based polymer (A1), a reinforcing fiber (B), and a modified polypropylene (C).
Disclosed are: a polypropylene-based resin composition comprising 100 parts by mass of polypropylene-based resin (A) (provided that, when the polypropylene-based resin includes other resins and/or inorganic filler, the total amount of the polypropylene-based resin and other resins and/or inorganic filler is taken as 100 parts by mass), 0.80 to 5.0 parts by mass of on or more types of aluminum flakes (B) having an average particle size of 5 to 90 μm, and 0.005 to 0.06 parts by mass of carbon black (C); and a molded article obtained by injection-molding this polypropylene-based resin composition. The polypropylene-based resin composition and the molded article obtained from this are excellent in a flip-flop metallic feeling, a heavy luxury feeling, light resistance and a feeling of luminance.
Disclosed is a propylene resin composition, said propylene resin composition enabling the production of a molded body having excellent mechanical properties, showing virtually no visible flow marks and having excellent low glossiness, which comprises: more than 15 parts by mass and not more than 40 parts by mass of an ethylene/α-olefin copolymer (E1); 4-20 parts by mass of an ethylene/α-olefin/diene copolymer (E2); a propylene-based polymer (P1) in which the content of an n-decane-soluble portion at 23oC is 5-25 mass% and the ethylene content in the n-decane-soluble portion is more than 40 mass% and not more than 60 mass%; a propylene homopolymer (P2); and an inorganic filler (F) [provided that the total amount of components (P1), (P2), (E1), (E2) and (F) is regarded as 100 parts by mass].
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
C08K 3/013 - Fillers, pigments or reinforcing additives
C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment
77.
PROPYLENE-BASED RESIN COMPOSITION, FILM COMPRISING SAME, AND USES THEREOF
[Problem] To provide: a propylene-based resin composition capable of giving films which are highly excellent in terms of not only low-temperature impact resistance and heat-seal strength after retortion but also rigidity and transparency and which are suitable for use as high-retortion CPP; a film comprising the propylene-based resin composition; and a laminate and a retort pouch. [Solution] The propylene-based resin composition of the present invention comprises 75-95 mass% propylene/ethylene block copolymer (A) satisfying requirements (a-1) to (a-4) and 5-25 mass% specific ethylene/α-olefin copolymer (B). (a-1) The MFR is 2.0-8.0 g/10 min. (a-2) The content of para-xylene solubles is 15 mass% or higher, and the content (mass%) of para-xylene solubles and the content (mass%) of n-decane solubles satisfy specific relationship (1). (a-3) The content of ethylene-derived structural units in the para-xylene solubles is 20-30 mass%. (a-4) The isotactic pentad content in para-xylene insolubles is 94 mol% or higher.
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
B65D 65/40 - Applications of laminates for particular packaging purposes
B65D 81/24 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
C08F 297/08 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
The present invention addresses the problem of providing a multilayer film that has a suitable stiffness without the occurrence of curling, since the surface hardness of the film is improved while maintaining transparency, heat sealing properties, impact strength, and tensile elastic modulus. The multilayer film according to the present invention contains (I) a layer made of a resin composition containing 0.1-10 wt% of a cyclic olefin resin (a1) and 90-99.9 wt% of an ethylene resin (b1) satisfying conditions (i) and (ii), (II) a layer made of a resin composition containing 10-70 wt% of a cyclic olefin resin (a2) and 30-90 wt% of an ethylene resin (b2) satisfying (i) and (ii), and (III) a layer containing an ethylene resin (b3). (i) The density is 880-970 kg/m3. (ii) The melt mass-flow rate (MFR) at 190°C and a load of 2.16 kg is 0.1-50 g/10 min.
[Problem] To provide a laminated body with which there can be formed a packaging bag that has a wide possible filling temperature region and exceptional high-speed filling properties with respect to liquids. [Solution] A laminated body obtained by laminating a sealant layer, which includes an ethylene/α-olefin copolymer that satisfies conditions (x0)-(x3), and an intermediate layer that contacts the sealant layer. (x0) Copolymer of ethylene and a C3-20 α-olefin (x1) MFR is 1-50 g/10 minutes (x2) Density is 890-910 kg/m3 (x3) The following expressions are satisfied at DSC between a total amount ΔH of melting heat and the amount of melting heat ΔH (T) observed when the temperature rises from 0°C to T°C. 0.35 ≤ ΔH (80)/ ΔH ≤ 0.85 0.60 ≤ ΔH (100)/ΔH ≤ 0.85
insolsolinsolsolinsolsolsolsol in 135°C decalin is 1.0–2.5 dl/g. (B1) Has an MFR at 190°C/2.16 kg of 0.5–50 g/10 min. (B2) Has a density of 886–920 kg/m3.
B65D 1/00 - Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
Disclosed is a polypropylene-based resin composition containing 49–90 parts by mass of a polypropylene-based resin (A), 9–50 parts by mass of an ethylene-alpha-olefin copolymer (B), and at least 0 parts by mass but less than 10 parts by mass of an inorganic filler (C), as well as (i) 0.2–0.6 parts by mass respectively of a lubricant (D) and a surfactant (E) or (ii) more than 0.6 parts by mass but no more than 1.2 parts by mass of a lubricant (D) or a surfactant (E) (wherein the total of components (A), (B), and (C) is 100 parts by mass); the viscosity [(A)η] of the polypropylene-based resin (A) being 40–70 Pa·s; the viscosity [(B)η] of the ethylene-alpha-olefin copolymer being 50–330 Pa·s; and the ratio [(B)η/(A)η) thereof being 7.2 or less.
4-10α4-10α-olefin satisfying certain requirements; and a low-density polyethylene obtained by a high-pressure method, wherein the weight ratio of the ethylene-based polymer to the low-density polyethylene obtained by the high-pressure method is 1:99 to 99:1.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Long glass fiber reinforced polypropylene resins,
unprocessed; polypropylene resins, unprocessed; unprocessed
plastics; synthetic resins, unprocessed; artificial resins,
unprocessed; wood pulp; paper pulp; synthetic pulp;
industrial chemicals; industrial chemicals for use in the
manufacture of polypropylene resins; chemicals for use in
the processing of plastics.
86.
PROPYLENE-BASED POLYMER, METHOD FOR PREPARING SAME, PROPYLENE-BASED RESIN COMPOSITION, AND MOLDED BODY
The purpose of the present invention is to provide a propylene-based polymer having high stereoregularity at an unprecedented level, and having high heat resistance and high rigidity. This propylene-based polymer satisfies requirements (1)-(4) and preferably satisfies requirement (5): (1) the meso-average chain length is 800-100000; (2) the MFR is 0.5-1000 g/10 minutes; (3) the ratio (Mw/Mn) of Mw to Mn is 4.2-20 as measured by GPC; (4) 100≥A≥20×EXP(-0.01×B), where A is the proportion [wt%] of a component eluting at a temperature of 122°C or higher as measured by the temperature rising elution fractionation measurement method (TREF) and B is the melt flow rate [g/10 minutes] in requirement (2); and (5) the amount of components soluble in n-decane at 23°C is 0.01-2 wt%.
3 and an MFR of 0.5 to 30 g/10 min, and 30 to 40 parts by mass of an inorganic filler (D) having an average particle size of over 3.0 μm and less than 5.0 μm [the total amount of the components (A) to (D) is 100 parts by mass]; and an automobile exterior member obtained by injection-molding or press-molding the composition.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Long glass fiber reinforced polypropylene resins, unprocessed; Polypropylene resins, unprocessed; Unprocessed plastics; Synthetic resins, unprocessed; Artificial resins, unprocessed; Wood pulp; Paper pulp; Industrial chemicals for use in the manufacture of polypropylene resins; Chemicals for use in the processing of plastics.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Unprocessed long glass fiber-reinforced polypropylene resins for manufacturing purposes; polypropylene resins, unprocessed; unprocessed plastics; synthetic resins, unprocessed; artificial resins, unprocessed; wood pulp for manufacturing purposes; paper pulp; synthetic pulp consisting of long glass fiber and unprocessed polypropylene resins; industrial chemicals; industrial chemicals for use in the manufacture of polypropylene resins; chemicals for use in the processing of plastics
90.
POLYPROPYLENE RESIN COMPOSITION AND MOLDED ARTICLE
Disclosed are: a polypropylene resin composition containing 100 parts by mass of polypropylene resin (A) (where the total amount of polypropylene resin and other resin and/or inorganic filler is 100 parts by mass when the polypropylene resin includes another resin and/or an inorganic filler), 0.80-5.0 parts by mass of one or more types of aluminum flakes (B) having an average grain size of 5-90 μm, and 0.005-0.06 parts by mass of carbon black (C); and a molded article obtained by injection-molding the polypropylene resin composition. The polypropylene resin composition and resulting molded article have exceptional flip-flop metallic feel, feeling of profound luxury, light resistance, and feeling of luminance.
In order to provide stretched fibers formed from a polypropylene, which have excellent thermal creep resistance, break strength and stiffness, a production method according to the present invention is characterized by comprising a step wherein fibers for stretching, said fibers containing a homopolypropylene that satisfies the requirements (1)-(3) described below, is stretched at a stretch ratio of 7 times or more under such conditions that the stress during the stretching is from 80 MPa to 10,000 MPa (inclusive). (1) The mmmm fraction is 97% or more. (2) The molecular weight distribution (Mw/Mn) as obtained by GPC is less than 3.0. (3) The melt flow rate (230°C, 2.16 kg) is 1-100 g/10 min.
D01F 6/06 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
Disclosed is a fiber-reinforced polypropylene resin composition which contains a propylene-based polymer (A) and reinforcing fibers (B), wherein if the content of at least one type of olefin-derived structural unit selected from among ethylene and α-olefins having 4-8 carbon atoms in the propylene-based polymer (A) is denoted by E (mass%) (the total content of the propylene-based polymer (A) and the reinforcing fibers (B) is 100 mass%) and the mesopentad fraction in the propylene-based polymer (A), as measured by 13C-NMR, is denoted by M (%), formulae (1) and (2) are satisfied, and the fiber-reinforced polypropylene resin composition can produce a molded body that exhibits excellent thermal and mechanical characteristics and exhibits excellent molded body surface appearance (especially crimped surface appearance). 85 ≤ M ≤ 99 (1) 74 ≤ M-12E ≤ 90 (2)
B32B 7/02 - Physical, chemical or physicochemical properties
B29C 44/02 - Shaping by internal pressure generated in the material, e.g. swelling or foaming for articles of definite length, i.e. discrete articles
B29C 45/78 - Measuring, controlling or regulating of temperature
C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
C08F 297/08 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof
B29C 44/34 - Component parts, details or accessoriesAuxiliary operations
B29K 23/00 - Use of polyalkenes as moulding material
B29K 105/04 - Condition, form or state of moulded material cellular or porous
94.
Propylene homopolymer composition for capacitor film, method for producing the same, and capacitor film
Provided are a propylene homopolymer composition for a capacitor film, from which a thin film can be easily produced and which can provide a film with excellent high-temperature voltage resistance, a method for producing the same, and a capacitor film. The propylene homopolymer composition for a capacitor film contains 1% by mass or more and less than 50% by mass of a propylene homopolymer (A1) having predetermined characteristics and more than 50% by mass and 99% by mass or less of a propylene homopolymer (B1) having predetermined characteristics, and has (i) a melt flow rate (MFR) of 1.0 to 10.0 g/10 min and (ii) a chlorine content of 2 ppm by mass or less.
H01G 4/18 - Organic dielectrics of synthetic material, e.g. derivatives of cellulose
C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C08F 4/654 - Pretreating with metals or metal-containing compounds with magnesium or compounds thereof
Provided are a propylene homopolymer composition for a capacitor film, which can provide a film with excellent high-temperature voltage resistance and excellent thin-film stretchability, a method for producing the same, and a capacitor film. The propylene homopolymer composition for a capacitor film contains 50 to 99% by mass of a propylene homopolymer (A1) having predetermined characteristics and 1 to 50% by mass of a propylene homopolymer (B1) having predetermined characteristics, and has (i) a melt flow rate (MFR) of 1.0 to 10.0 g/10 min and (ii) a chlorine content of 2 ppm by mass or less.
H01G 4/18 - Organic dielectrics of synthetic material, e.g. derivatives of cellulose
C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C08F 4/654 - Pretreating with metals or metal-containing compounds with magnesium or compounds thereof
Disclosed are: a polypropylene-based resin composition which comprises 5-47 parts by mass of a propylene-based polymer (A) having an MFR of 50-150 g/10 min and having a decane-soluble content of 6 mass% or higher, 0-30 parts by mass of a propylene homopolymer (B) having an MFR of 10-500 g/10 min, 23-30 parts by mass of an ethylene/α-olefin copolymer (C) that is a random copolymer of ethylene and a C4-8 α-olefin and has a density of 0.850-0.890 g/cm3 and an MFR of 0.5-30 g/10 min, and 30-40 parts by mass of an inorganic filler (D) having an average particle diameter larger than 3.0 µm but smaller than 5.0 µm (the sum of components (A) to (D) being 100 parts by mass); and an exterior automotive trim member obtained by injection-molding or press-molding the composition.
An olefin resin having requirements (I) to (VI) is provided: (I) a grafted olefin polymer containing a main chain with an ethylene/α-olefin copolymer and a side chain with a propylene polymer; (II) the ratio P wt % of propylene polymer is from 5 to 60 wt %; (III) when the ratio of the amount of a component(s) having a peak temperature of a differential elution curve as measured by CFC using o-dichlorobenzene of less that 65° C., to the amount of (β) taken as E wt %, the value a represented by an equation (Eq-1), is 1.4 or more; (IV) the melting point (Tm) is 120 to 165° C. and the glass transition temperature (Tg) is −80 to −30° C., as measured by DSC; (V) the hot xylene-insoluble content is less than 3 wt %; and, (VI) the limiting viscosity as measured in decalin at 135° C. is 0.5 to 5.0 dl/g.
C08F 290/04 - Polymers provided for in subclasses or
C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
An object of the present invention is to provide a propylene-based resin composition capable of providing a molded article having an excellent balance between rigidity and impact resistance. The object can be achieved by a propylene-based resin composition including an olefin-based resin characterized by including a grafted ethylene-based copolymer having an ethylene polymer as a side chain.
C08F 255/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group on to polymers of olefins having two or three carbon atoms
99.
LAMINATE, METHOD FOR MANUFACTURING SAME, AND SEALANT FILM
The purpose of the present invention is to provide a laminate having high adhesive strength between a polyethylene layer and a substrate layer, without using an anchor coat agent. Provided is a method for manufacturing a laminate, including a step of extrusion laminating a substrate and a resin composition including an ethylene-based polymer and an ethylene-based polymer composition containing a phosphorus-containing compound having a specific structure, so that the resin composition and the substrate are in direct contact, wherein the method is characterized in that the ethylene-based polymer contains at least one of a high pressure low density polyethylene and a copolymer of ethylene, and an α-olefin having 3 to 10 carbon atoms, and the ethylene-based polymer composition satisfies predetermined conditions.
There is shown a propylene resin composition including 100 parts by weight of (A) a propylene resin and 0.05 to 0.5 part by weight of (B) a nucleating agent containing an organophosphoric ester compound represented by the formula (B1) and at least one kind selected from aliphatic carboxylic acids and derivatives thereof and containing an alkali metal element as an essential component, wherein MFR is 11 to 100 g/10 min, the crystalline melting point is 140 to 155° C., and in an elution curve determined by a temperature rising elution fractionation chromatograph (TREF), the elution quantity Wp1 (% by weight) in a temperature range higher than the main elution peak temperature Tp and the elution quantity Wp2 (% by weight) in a temperature range not higher than 10° C. are each in a specific range.
