Thermoplastic compositions include: from about 50 wt % to about 70 wt % of a PEEK (polyether ether ketone) component; from about 5 wt % to about 20 wt % of a PEI (polyetherimide) component; and from about 20 wt % to about 40 wt % of a glass fiber component. The combined weight percent value of all components does not exceed 100 wt %, and all weight percent values are based on the total weight of the composition. Methods for forming a molded article including the thermoplastic composition are described.
A composition includes particular amounts of a poly(methyl methacrylate); a poly(carbonate-siloxane); an acrylic impact modifier; a first anti-scratch additive including a polyethylene; and a second anti-scratch additive different from the first anti-scratch additive. Methods for the manufacture of the composition and articles including the composition are also described.
C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
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
3.
POLYETHERIMIDE COMPOSITION, METHOD FOR THE MANUFACTURE THEREOF, AND INJECTION MOLDED ARTICLES MADE THEREFROM
A polyetherimide composition includes a polyetherimide having a percent transmission of 75% to 85% at 500 nanometers as determined according to ASTM D1003 at a thickness of 1.6 mm. The composition further includes a colorant. A molded sample of the polyetherimide composition can have a percent transmission of greater than 40% at a thickness of 1.6 millimeters and a percent transmission of greater than 15% at a thickness of 3.2 millimeters, each at a wavelength of 450 nanometers and determined according to ASTM D 1003. Methods of the manufacture of the polyetherimide composition and injection molded articles prepared therefrom are also disclosed.
A composition includes particular amounts of a poly(methyl methacrylate), a poly(carbonate-siloxane), an acrylic impact modifier, a polyethylene, and a siloxane-containing anti-scratch additive. The composition can exhibit a desirable combination of good mechanical properties and scratch resistance. Methods of making the composition and articles comprising the composition are also disclosed.
White polycarbonate compositions having a low added fluorine content while also achieving a V-0 flame test rating at 1.5 mm or less include: a homopolycarbonate having a weight average molecular weight of 25,000 grams per mole or more, using polystyrene standards and calculated for polycarbonate; and a poly(carbonate-siloxane) having a siloxane content of 30-70 wt% present in an amount effective to provide 3-20 wt% siloxane repeating units based on the total weight of the composition, and a weight average molecular weight of 26,000-50,000 grams per mole, as determined by gel permeation chromatography using polystyrene standards and calculated for polycarbonate; a flame retardant; a colorant composition comprising titanium dioxide; and optionally, an additive composition; wherein the polycarbonate composition comprises 1200 ppm or less of added fluorine to the total composition.
Disclosed is a fiber composition comprising from about 60 wt. % to about 99 wt. % of a polymer base resin, wherein the polymer base resin comprises a chemically upcycled polybutylene terephthalate (PBT) component, which was derived from a post-consumer recycled (PCR) polyester, and from about 0.1 wt. % to about 40 wt. % of a reinforcing filler, wherein the combined weight percent value of all components does not exceed 100 wt. % and all weight percent values are based on the total weight of the fiber composition, wherein the fiber composition is in the form of a fiber, and wherein the fiber exhibits a tensile modulus of greater than 1950 MPa when tested in accordance with ISO 527.
Polycarbonate compositions having a low added fluorine content while also achieving a V-0 flame test rating at 1.5 mm include: a homopolycarbonate composition having one or more homopolycarbonates, wherein an average of the weight average molecular weight of the homopolycarbonate composition is 25,000 g/mol or more, a poly(carbonate-siloxane) having a siloxane content of 30-70 wt% present in an amount effective to provide 4.5-14 wt% siloxane repeating units based on the total weight of the composition, and having a weight average molecular weight of 26,000-50,000 grams per mole,; and having less than 1 wt% of a poly(carbonate-siloxane) with a siloxane content of less than 30 wt%; 0.01-1.0 wt% of a flame retardant comprising an aromatic sulfonate inorganic salt, an aromatic sulfone sulfonate inorganic salt, or a combination thereof.
Polycarbonate compositions having a low added fluorine content while also achieving a V-0 flame test rating at 1.5 mm or 1.2 mm include: 80-95 wt% of a homopolycarbonate composition including one or more homopolycarbonates, wherein an average of the weight average molecular weight of the homopolycarbonates is 26,000 g/mol or more; 5-20 wt% of a poly(carbonate-siloxane) having a siloxane content of 30-70 wt% present in an amount effective to provide 2-14 wt% siloxane repeating units based on the total weight of the composition, and having a weight average molecular weight of 26,000-50,000 g/mol, and having less than 1 wt% of a poly(carbonate-siloxane) having a siloxane content of less than 30 wt%; 2.5-10 wt% of a phosphazene flame retardant.
Polymer-ceramic composite particles, molded parts, and methods. The composites, in powder form, comprise a plurality of composite particles each comprising an agglomeration of polybutylene terephthalate (PBT) particle physically bonded to a plurality of aluminum oxide (AI2O3) particles, where at least some of the AI2O; particles are exposed to an exterior of the agglomeration of PBT particles. Such composite powders comprises between 50% and 90% by volume of AI2O3, and between 10% and 50% by volume of PBT. In pellet form, PBT particles of adjacent composite particles are joined to resist separation of the adjacent composite particles and deformation of a respective pellet. Methods of forming a ceramic-polymer composite comprise: heating a mixture of PBT particles, organic solvent, and AI2O3 particles to a first temperature that is between the glass transition temperature and the melting point of the PBT, while maintaining the mixture at a first pressure at which the solvent remains substantially liquid, to at least partially dissolve the PBT particles in the solvent; agitating the heated mixture for a period of minutes; and cooling the mixture to or below the glass transition temperature of the PBT to precipitate at least some of the PBT to form agglomerations of PBT particles and bond at least some of the AI2O3 particles to to PBT particles to thereby form a plurality of composite particles each comprising an agglomeration of PBT particles physically bonded to a plurality of AI2O3 particles, at least some of which being exposed to an exterior of the agglomeration.
Disclosed herein is a multilayer part comprising: a first layer, wherein the first layer comprises a first polymer composition comprising a first polymer and from about 0.1 wt. % to about 30 wt. % of a first electrically conductive carbon-based filler; a second layer disposed adjacent a surface of the first layer, wherein the second layer comprises a second polymer composition comprising a second polymer and from about 0.01 wt. % to about 10 wt. % of a second electrically conductive carbon-based filler; wherein the multilayer part exhibits a percent reflected power measured in transmission mode of less than 15% when observed according to a Free Space method at frequencies of from about 75 GHz to 110 GHz, when the multilayer part is oriented such that microwave radiation is incident to the second layer of the multilayer part.
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B32B 7/02 - Physical, chemical or physicochemical properties
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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
An article is formed according to a process including: (a) forming a substrate component including a thermoplastic composition; and (b) applying a laser activated plating (LAP) process to the substrate component to apply a metal film on the substrate component and form the article. The thermoplastic composition includes: (1) from about 10 wt % to about 80 wt % of a polycarbonate component; (2) from about 5 wt % to about 80 wt % of a siloxane component including a poly(carbonate-siloxane) copolymer or silicon oil, wherein the poly(carbonate-siloxane) copolymer, if present, is different from the polycarbonate component in element (1); (3) from about 10 wt % to about 60 wt % of a glass fiber component; and (4) from about 1 wt % to about 15 wt % of a flame retardant component including a phosphorous compound.
Thermoplastic compositions include: a thermoplastic polymer component including a polyester; and from greater than 0.10 wt % to about 1.95 wt % of a carbon nanotube (CNT) fdler. A 6 in×8 in×⅛ in molded sample of the composition has a percent Absorbed Power measured in Transmission mode of at least 60% when observed at a 77 GHz frequency according to a Free Space method. In some aspects the polyester includes polybutylene terephthalate (PBT). Further aspects include articles (e.g., a radar sensor, a camera, an electronic control unit, etc.) including a molded part including a microwave absorbing material (absorber). The article may have at least two openings to allow the transmission of microwave radiation between a transmitting antenna and a receiving antenna located in/on the printed circuit board of the sensor.
Thermoplastic compositions include: from about 40 wt % to about 89.9 wt % of at least one crystalline or semi-crystalline polymer; from about 10 wt % to about 20 wt % of at least one amorphous polymer; from about 0.1 wt % to about 20 wt % of a conductive carbon filler; and from 0) wt % to about 30 wt % of a reinforcing filler comprising glass fiber, glass flake, or a combination thereof. The thermoplastic composition has an absorption of at least 65%, a reflection of 35% or lower, and a transmission of 1% or lower, wherein absorption, reflection and transmission are tested in transmission mode in accordance with a Free Space Method at a frequency of from 75 gigahertz (GHz) to 110 GHz. The compositions are particularly suitable for use in radar absorbers for a radar or automobile sensor application.
Disclosed herein is a capped poly(phenylene ether) having an activated ester end group and a structure as further defined herein. The capped poly(phenylene ether) can be particularly useful in curable compositions, thermoset compositions, and articles formed therefrom.
C08G 65/48 - Polymers modified by chemical after-treatment
C08G 59/42 - Polycarboxylic acidsAnhydrides, halides, or low-molecular-weight esters thereof
C08G 65/44 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols by oxidation of phenols
15.
SUSTAINABLE POLYBUTYLENE TEREPHTHALATE COMPOSITIONS WITH IMPROVED COLOR CAPABILITY
Methods for forming a thermoplastic composition include: polymerizing a high purity bis(2-hydroxyethyl) terephthalate (BHET) monomer with butane diol (BDO) to form polybutylene terephthalate (PBT); and combining from 15 wt % to 98 wt % of the PBT, from 2 wt % to 10 wt % of at least one brightening agent, and from 0 wt % to 83 wt % of at least one additional component, to form the thermoplastic composition. The high purity BHET monomer is formed by a process consisting of depolymerizing post-consumer or post-industrial recycled (PCR) polyethylene terephthalate (PET), the high purity BHET monomer has a purity of at least 95%, and the thermoplastic composition has an L* color value of at least 94.
Thermoplastic compositions include: from about 30 wt % to about 70 wt % of a polybutylene terephthalate (PBT) polymer component; from about 10 wt % to about 20 wt % of a polyetherimide (PEI) polymer component; an impact modifier component; and from about 20 wt % to about 50 wt % of a glass fiber component. An injection molded sample of the composition has no observed mold whitening. The combined weight percent value of all components does not exceed 100 wt %, and all weight percent values are based on the total weight of the composition.
A polycarbonate composition suitable for thin-wall applications comprises: a linear homopolycarbonate; a poly(carbonate-siloxane) present in an amount effective to provide 0.1 to 10 wt % siloxane, based on the total weight of the composition, a linear polycarbonate having pendant ester groups in an amount effective to provide 0.1 to 5.0 mole % repeating units derived from C a monomer having a pendant ester group based on the total moles of the composition; and a flame retardant wherein a molded sample N of the composition has a UL-94 flame test rating of VO at a thickness of 1.5 mm.
Thermoplastic compositions include: from about 35 wt% to about 70 wt% of a polymer resin, wherein the polymer resin comprises at least two polymer resins, wherein at least one of the polymer resins includes a high density polyethylene (HDPE) polymer having a degree of crystallinity of at least 47% as measured by differential scanning calorimetry (DSC); from about 10 wt% to about 40 wt% synthetic graphite; from about 5 wt% to about 15 wt% carbon nanotubes (CNTs); and from about 3 wt% to about 15 wt% conductive carbon black powder.
A self-branching polyetherimide comprising a first repeating unit derived from polymerization of the aromatic dianhydride and a first diamine, wherein the first diamine comprises a carboxyl-substituted C6-24 aromatic hydrocarbon group; and optionally, a second repeating unit derived from polymerization of an aromatic dianhydride and a second diamine, wherein the second diamine comprises a C1-30 divalent hydrocarbon group, optionally comprising 1 to 4 heteroatoms, wherein the self-branching polyetherimide is end-capped with phthalic anhydride.
A thermoplastic composition includes: from about 60 wt% to about 99.5 wt% of at least one thermoplastic polymer including polycarbonate (PC), polycarbonate-siloxane copolymer, polyester (PE), polyetherimide (PEI), polyphenylsufone (PPSU), polyethersulfone (PES), polysulfone (PSU), polyarylate (PAR), copolymers thereof, or combinations thereof; and from about 0.5 wt% to about 5 wt% of a laser direct structuring (LDS) additive comprising blue indium tin oxide (BITO). The thermoplastic composition has a visible transmittance of at least 50% and a haze of 30% or lower as tested in accordance with ASTM D1003-00 at a thickness of 1 millimeter. The combined weight percent value of all components does not exceed 100 wt%, and all weight percent values are based on the total weight of the composition.
A method of forming a porous carbon includes pyrolyzing a functionalized polyphenylene ether to provide the porous carbon material. The porous carbon material has a particular distribution of pores. Porous carbon materials prepared according to the method and uses thereof are also disclosed.
A thermoplastic composition includes: a transparent thermoplastic resin; from about 0.1 wt % to about 2 wt % of a mold release agent including pentaerythritol tetrastearate (PETS); and from 0.01 wt % to about 5 wt % of a stabilizer component. The PETS is derived from an aliphatic carboxylic acid having less than 50 wt % content of C18 or longer alkane chains. The thermoplastic composition has improved transparency properties as compared to comparative compositions including PETS derived from an animal source.
Thermoplastic compositions include: (a) a polycarbonate resin: (b) a poly (carbonate-siloxane) copolymer having a siloxane content of at least about 5 wt %; and (c) from about 0.15 wt % to about 4.5 wt % of a carbon nanotube filler. The carbon nanotubes have an average diameter of from about 8-12 nanometers (nm), a length of about 5 micron (μm) or less, a surface area of about 220 square meters per gram (m2/gr) or higher, and a volume resistivity lower than about 10−2 Ohm·centimeters (Ohm·cm). The composition has a volume electrical resistivity of at least about 1.0E+06 Ohm·cm as determined in accordance with ASTM D257. A molded sample of the composition has a percent absorbed power measured in Transmission mode of at least about 60% when observed according to a Free Space method at frequencies from about 75 GHz to 110 GHZ.
A thermoplastic composition includes: from about 20 wt% to about 65 wt% of a resin component including polybutylene terephthalate (PBT), polycyclohexylenedimethylene terephthalate (PCT), polyethylene terephthalate (PET), or a combination thereof; from about 10 wt% to about 30 wt% of a polyestercarbonate copolymer including resorcinol units; from about 5 wt% to about 50 wt% of a glass fiber component including recycled round glass fiber; and from about 5 wt% to about 10 wt% of at least one additive component. The composition has a higher nano molding technology (NMT) bonding strength as compared to a comparative composition including flat glass fibers instead of the recycled round glass fibers. The composition has a dielectric constant (Dk) of at least 3.3 as evaluated at 2.5 gigahertz (GHz) or 5.0 GHz in accordance with a SPDR Method, or at least 3.24 as evaluated at 60 GHz in accordance with a Coaxial Method.
A method of converting poly(ethylene terephthalate) to terephthalic acid includes a glycolysis step in which poly(ethylene terephthalate) is reacted with ethylene glycol in the presence of zinc acetate catalyst, a hydrolysis step in which the product of the glycolysis step is reacted with an alkali metal hydroxide to produce an alkali metal salt of terephthalic acid, and an acidification step in which the product of the hydrolysis step is acidified to yield a precipitate containing terephthalic acid. Each step of the method can be conducted at ambient or near-ambient pressure, and the method produces terephthalic acid in high yield and high purity.
Disclosed herein are compositions comprising: from about 30 wt. % to 90 wt. % of polymer component; and from about 1 wt. % to 25 wt. % of a filler component, wherein the filler component comprises from about 5 wt % to about 20 wt % of an electrically conductive filler and from about 0.1 wt % to about 5 wt % of a non-electrically conductive filler based on the total volume of the composition, wherein the non-electrically conductive filler is intrinsically hydrophobic or wherein the non-electrically conductive filler comprises a hydrophobic coating: wherein the composition exhibits a surface resistivity of from about 1×105 Ohm/square to about 1×108 Ohm/square when tested in accordance with ASTM D257, wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composition.
A film extrusion composition includes specific amounts of a heat-resistant copolycarbonate, a slip agent, and a particulate crosslinked polymethylsilsesquioxane having particles of a specific size. An extruded film prepared from the film extrusion composition exhibits a beneficial balance of telescoping, blocking, and dielectric properties. The extruded film is useful for forming electrostatic film capacitors.
A graft copolymer includes a hydrocarbon backbone having a phenylene ether oligomer grafted therefrom. The graft copolymer can be particularly useful in curable compositions, thermoset compositions, and articles formed therefrom.
C08G 81/02 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
C09D 151/08 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCoating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C09D 187/00 - Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
C09J 151/08 - Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsAdhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C09J 187/00 - Adhesives based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon-bonds
C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
A polycarbonate composition suitable for thin-wall applications comprises: a polycarbonate; a polycarbonate comprising repeating units derived from a monomer comprising a pendant ester group; a non-halogenated flame retardant, optionally, a poly(carbonate-siloxane) present in an amount effective to provide 4 wt% or less of siloxane repeating units, based on the total weight of the composition, and optionally, an additive composition wherein a sample of the composition has a UL-94 flame test rating of V-0 at a thickness of 1.5 mm or thinner. Advantageously, the polycarbonate compositions may minimize or eliminate fluorinated flame retardant salts such as Rimar salt and fluorinated anti-drip agents while achieving improved flame test performance.
A thermoplastic composition includes particular amounts of a poly(phenylene ether); a polyamide; an impact modifier; a conductive agent; a hydroxy-containing compound comprising bisphenoxyethanol fluorene, a terpene phenolic resin, a novolak resin, or a combination thereof; and a compatibilizing agent; wherein weight percent is based on the total weight of the thermoplastic composition.
C08L 53/02 - 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 of vinyl aromatic monomers and conjugated dienes
A polycarbonate composition suitable for thin-wall applications comprises: a polycarbonate; a polycarbonate comprising repeating units derived from a monomer comprising a pendant ester group; a non-halogenated flame retardant; glass fibers; glass fibers; optionally, a poly(carbonate-siloxane) present in an amount effective to provide 0.5-10 wt% siloxane repeating units, based on the total weight of the composition, and optionally, an additive composition wherein a sample of the composition has a UL-94 flame test rating of V-0 at a thickness of 1.5 mm or thinner. Advantageously, the polycarbonate compositions may minimize or eliminate fluorinated flame retardant salts such as Rimar salt and fluorinated anti-drip agents while achieving improved flame test performance.
Thermoplastic compositions include from about 20 wt% to about 80 wt% of a polyphenylene ether (PPE), from about 1 wt% to about 30 wt% of a polystyrene resin that does not include a rubber component, and from about 0.01 wt% to about 10 wt% of a chemically reactive impact modifier. The combined weight percent value of all components does not exceed 100 wt%, and all weight percent values are based on the total weight of the composition. The compositions are resistant to bubbling upon processing.
The polycarbonate compositions are reinforced and include either (1) a combination of a bromine-containing polycarbonate copolymer, poly(carbonate-siloxane), or (2) a poly(ester-carbonate-siloxane) and an organophosphorus flame retardant, resulting in robust smoke density and heat release meeting R6-HL2 and retaining impact properties. Molded or extruded samples of the disclosed polycarbonate compositions have: a smoke density after 4 minutes (DS-4) of 300 or less, measured in accordance with ISO 5659-2 on a 3 mm thick plaque at 50 kW/m2; an integral of smoke density as a function of time after 4 minutes (VOF4) of 600 or less, measured in accordance with ISO 5659-2 on a 3 mm thick plaque at 50 kW/m2; a maximum average heat release (MAHRE) of 90 kW/m2or less, measured in accordance with ISO 5660-1 on a 3 mm thick plaque at 50 kW/m2; a critical heat flux at extinguishment (CFE) of 20 kW/m2 or greater, measured in accordance with ISO 5658-2 on a 3 mm thick plaque; or a combination thereof.
Thermoplastic compositions include: at least one polyamide resin; at least about 30 wt % of a reinforcing fiber; and an impact modifier component including at least one impact modifier having a glass transition temperature (Tg) of about −30 degrees Celsius (° C.) or lower. The reinforcing fiber has a fiber length of at least about 10 millimeters (mm). The thermoplastic composition has a notched Izod impact strength of at least 300 Joules per meter (J/m) at −40° C. and a multi-axial impact energy of at least 15 J at −40° C. Methods of forming a pelletized thermoplastic composition, a plurality of thermoplastic pellets, and a composition including the plurality of thermoplastic pellets are also described.
N,Ntert-tert-butylethylenediamine to form the poly(2,6-dimethyl-1,4-phenylene ether). The N,N'-di-tertbutylethylenediamine is present in an amount of 0.47 to 0.6 weight percent based on the weight of 2,6-dimethylphenol, and the copper ion is present in a molar ratio of 2,6- dimethylphenol to copper ion of 900:1 to 1300:1. The process provides poly(2,6-dimethyl-1,4- phenylene ether) having an intermediate molecular weight and intrinsic viscosity.
C08G 65/44 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols by oxidation of phenols
36.
PHENYLENE ETHER OLIGOMER AND CURABLE THERMOSETTING COMPOSITION COMPRISING THE PHENYLENE ETHER OLIGOMER
A linear bifunctional phenylene ether oligomer includes repeating units derived from 2-methyl-6-cyclohexylphenol and has (meth)acrylate end groups. The linear bifunctional phenylene ether oligomer can be particularly useful in curable compositions, thermoset compositions, and articles formed therefrom.
A thermoplastic composition includes particular amounts of poly(phenylene ether) having an intrinsic viscosity of greater than 0.5 to 1.45 deciliters per gram and a homopolystyrene. The composition can advantageously provide improved fatigue performance. The composition can be particularly useful for water-contacting articles.
A composition includes particular amounts of a polyphenylene ether, a polystyrene, a block copolymer of an alkenyl aromatic and a conjugated diene, and a flame retardant. The composition, after foaming with a blowing agent, has a density of less than 0.5 g/cm3. Methods of making the composition are also described.
C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
B29C 44/34 - Component parts, details or accessoriesAuxiliary operations
C08J 9/12 - 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 physical blowing agent
An article for use in a chemical mechanical polishing process includes a metal backbone and a thermoplastic composition encapsulating the metal backbone. The metal backbone can optionally include a buffer layer between the surface of the backbone and the thermoplastic composition. The metal backbone or, when present, the buffer layer includes a plurality of pores. Methods for the manufacture of the article are also described.
A sulfonated poly(phenylene ether) is described herein. The sulfonated poly(phenylene ether) has a degree of sulfonation of 15 to 50%. At least 90% of the sulfonated poly(phenylene ether) repeating units of the sulfonated poly(phenylene ether) are monosubstituted. Methods for the manufacture of the sulfonated poly(phenylene ether) and articles prepared therefrom are also disclosed.
A halomethylated polyphenylene ether includes particular amounts of repeating units of the Formulae (I) (II) (III) wherein X is chlorine or bromine. The halomethylated polyphenylene ether can be particularly well suited for subsequent quaternization. Use of the materials described herein in applications such as ion exchange membranes is also described.
A poly(phenylene ether)-based composition exhibiting improved resistance to decomposition after repeated exposure to high voltages is prepared by melt-blending specific amounts of a poly(phenylene ether), an organophosphate ester flame retardant, and a surface energy reducing agent. The composition includes no more than 30 weight percent of mineral filler. Also described is an injection molded article prepared from the composition.
Disclosed is a composition comprising from about 15 wt. % to about 80 wt. % of a thermoplastic resin, wherein the thermoplastic resin comprises a polyphenylene sulfide or a polyether ketone or a combination thereof; and from about 10 wt. % to 80 wt. % of a ceramic filler, wherein the ceramic filler comprises (a) an oxide of titanium, barium, calcium, magnesium, or copper, or strontium or a combination thereof, or (b) a titanate of calcium, magnesium, titanium, or copper or a combination thereof, and wherein the ceramic filler has a particle size of from about 0.1 μm to about 10 μm, wherein the composition exhibits a dielectric constant greater than 4, wherein the composition exhibits a dissipation factor less than 0.005 at 1.9 GHz, and wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composition.
Thermoplastic compositions include: from about 30 wt % to about 80 wt % of a polymer base resin component: from about 3 wt % to about 20 wt % of a polycarbonate component: from about 2 wt % to about 15 wt % of an impact modifier component: from about 10 wt % to about 50 wt % of a glass fiber component; and from about 0.5 wt % to about 8 wt % of a carbon additive including carbon fiber. The compositions have a dielectric constant (Dk) of at least 5 at a frequency of from 1 GHz to 30 GHz as tested in accordance with a coaxial method.
Thermoplastic compositions include: (a) from 10 wt % to 95 wt % of a polycarbonate component: (b) from 0.1 wt % to 50 wt % of a reinforcing filler: (c) from 0.1 wt % to 10 wt % of an impact modifier component having a linear polymer structure; and from 0.1 wt % to 10 wt % of a hydrocarbon additive. A weight percent ratio of the hydrocarbon additive to the impact modifier in the composition is 1:1 or lower. The hydrocarbon additive may include saturated carboxylic and acyclic structures. In particular aspects the impact modifier component has a linear, non-polarized polymer structure, and the composition has improved Izod impact properties and/or gloss properties as compared to a reference composition that includes a polarized impact modifier instead of the impact modifier component.
A thermoplastic composition includes: a first branched polycarbonate copolymer end-capped with 4-hydroxybenzonitrile (4-HBN) having a molecular weight M1; and a second branched polycarbonate copolymer end-capped with 4-HBN having a molecular weight M2. M1 is less than M2. Methods for determining entanglement molecular weight (Me) of a polycarbonate copolymer include: preparing a sample of a branched polycarbonate copolymer including a 1,1,1-tris-hydroxy-phenylethane (THPE) branching agent and that is end-capped with 4-HBN; determining phase angle (∂) versus complex modulus (G*) of the sample using a small amplitude oscillatory rheology process at a specified temperature; determining a minima in the ∂ of the sample; determining a plateau modulus (GN) of the sample from the determined minima of ∂; and calculating the Me of the sample from the GN.
A multilayer film can comprise: a plurality of layers, preferably 4 layers to 128 layers, comprising: a polymer A layer comprising a polycarbonate copolymer and a polymer B layer comprising a semi-crystalline biaxially-oriented polyester; and an inter-diffusion region between each polymer A layer and polymer B layer; wherein a differential solubility parameter of polymer A towards polymer B (ΔδAB) is 2.6 MPa1/2≤ΔδAB≤3.0 MPa1/2. Each polymer B layer has a particular crystallinity. The multilayer film can exhibit a combination flexibility and impact resistance.
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/08 - Flat, e.g. panels flexible, e.g. films
B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
B29K 23/00 - Use of polyalkenes as moulding material
B29K 67/00 - Use of polyesters as moulding material
B29K 69/00 - Use of polycarbonates as moulding material
B29K 105/00 - Condition, form or state of moulded material
B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
B32B 1/00 - Layered products having a non-planar shape
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 composition includes particular amounts of a poly(methyl methacrylate), a poly(carbonate-siloxane), and a low density polyethylene. Also provided is a method of making the composition and articles including the composition.
A desirable balance of heat resistance and flame retardancy is exhibited by a composition that includes specific amounts of a poly(phenylene ether), a poly(phenylene ether)-polysiloxane block copolymer reaction product, a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, and an organophosphate flame retardant. The composition minimizes or excludes reinforcing fillers, certain adhesion promoters, and addition polymers that include repeat units derived from a glycidyl ester of an α,β-ethylenically unsaturated acid.
A foamed polymer composition includes: a matrix polymer component including polystyrene (PS), copolymers thereof, or a combination thereof; and from 0.003 wt% to 0.15 wt%, based on the weight of the polymer composition, of a fluoropolymer component including a fibrillated fluoropolymer, a fibrillated fluoropolymer encapsulated by an encapsulating polymer, or a combination thereof. The composition has a specific compressive strength of from 8 to 65 kilopascals per cubic meter (kPa.m3/kg) or in some aspects from 8 to 35 kPa.m3/kg, or from 12 to 65 kPa.m3/kg, or from 12 to 35 kPa.m3/kg, as determined using a Universal Test Machine in accordance with ISO 844. Methods for making a foamed polymer composition are also described.
C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
C08L 25/04 - Homopolymers or copolymers of styrene
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
C08J 9/12 - 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 physical blowing agent
C08J 9/14 - 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 physical blowing agent organic
51.
HIGH FLOW POLYSTYRENE RESINS, COMPOSITIONS THEREOF AND METHODS OF MAKING
A polymer composition includes: a matrix polymer component including a polystyrene polymer; and 0.005 wt% to 9 wt. %, based on the weight of the polymer composition, of a fluoropolymer component including a fibrillated fluoropolymer, a fibrillated fluoropolymer encapsulated by an encapsulating polymer, or a combination thereof. The polymer composition has a weight average molecular weight (Mw) below 193,000 grams per mole (g/mol) as determined according to gel permeation chromatography (GPC) using polystyrene standards. The polymer composition has a tensile modulus between 3300 and 3800 Megapascals (MPa) as tested in accordance with ISO 527. Methods for forming the polymer composition include passing a molten feed composition including the matrix polymer component and the fluoropolymer component through a die to form the polymer composition.
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
C08J 9/12 - 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 physical blowing agent
C08J 9/14 - 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 physical blowing agent organic
52.
Electrically Conductive Compositions Including Carbon Fiber-Filled Semi-Crystalline Polymers
A thermoplastic composition includes: (a) a thermoplastic polymer component including a crystalline or semi-crystalline polymer: (b) carbon fiber: (c) from about 0.01 wt % to about 10 wt % of at least one nucleating agent including a non-electrically conducting filler, an organic nucleation agent, or a combination thereof; and (d) from 0 wt % to 30 wt % of an amorphous polymer. The carbon fiber has a nominal fiber diameter of from about 3 micron (μm) to about 13 μm. The composition has a surface resistivity that is at least 50% lower than that of a substantially identical reference composition that does not include the at least one nucleating agent. The combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the thermoplastic composition.
A reflective article includes an injection molded thermoplastic substrate, and a reflective metal layer disposed on a surface of the thermoplastic substrate. The injection molded thermoplastic substrate is prepared from a pre-blended composition including specific amounts of two poly(phenylene ether)s having different intrinsic viscosities, an atactic polystyrene, and, optionally, a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene. The reflective article is lighter and less costly than comparable reflective articles based on heat-resistant polycarbonates. Also described are a melt-blended composition derived from the pre-blended composition, and an injection-molded article prepared from the melt-blended composition.
B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
54.
THERMOPLASTIC COMPOSITION, METHOD FOR THE MANUFACTURE THEREOF, AND ARTICLES COMPRISING THE THERMOPLASTIC COMPOSITION
10-22181616 peak area relative to total peak determined using gas chromatography. The composition can advantageously provide improved mold release properties. Methods for making the composition and articles derived from the composition are also disclosed.
A polycarbonate composition comprising: 1-65 wt % of a homopolycarbonate; 35-99 wt % of a poly(carbonate-co-arylate ester) comprising 60-90 mol % of bisphenol A carbonate units, 10-30 mol % of isophthalic acid-terephthalic acid-resorcinol ester units, and 1-20 mol % of resorcinol carbonate units; an organophosphorus flame retardant in an amount effective to provide up to 1.5 wt % phosphorous; optionally, up to 5 wt % of an additive composition, wherein each amount is based on the total weight of the polycarbonate composition, which sums to 100 wt %.
A polyetherimide includes repeating units derived from a dianhydride selected from 4,4'- ((propane-2,2-diylbis(4,1-phenylene))bis(oxy))bis(isobenzofuran-1, 3-dione); or 4,4'-([1,1'- biphenyl]-4,4'-diylbis(oxy))bis(isobenzofuran-1, 3-dione); a first diamine including 9,9-bis(4- aminophenyl)fiuorene; and a second diamine including di aminodiphenyl ether, 4,4'- diaminodiphenyl sulfone, meta-phenylene diamine, or para-phenylene diamine. The polyetherimide can exhibit a desirable combination of properties. Methods of making the polyetherimide and polymer compositions and articles including the polyetherimide are also disclosed.
Disclosed herein are polymer compositions comprising from about 1 wt. % to about 99 wt. % of a polyetherimide resin; from about 1 wt. % to about 70 wt. % of a crystalline polyester resin; from about 0.1 wt. % to about 50 wt. % of an inherently dissipative polymer; and from about 0.001 wt. % to about 10 wt. % of a transesterification inhibitor. The combined weight percent value of all components does not exceed about 100 wt. %, and all weight percent values are based on the total weight of the polymer composition. The polymer composition may exhibit a surface resistivity of from 1×109 ohms to 9×1010 ohms when measured in accordance with ASTM D257.
Thermoplastic compositions include: a copolyester elastomer including a polybutylene terephthalate (PBT) moiety and an elastomer moiety: and from greater than 0.1 wt % to 9 wt % of at least one brightening agent. The copolyester elastomer is formed according to a process including (1) forming the PBT moiety from a high purity terephthalic moiety: and (2) polymerizing the PBT moiety with the elastomer moiety to form the copolyester elastomer, wherein the high purity terephthalic moiety is derived from post-consumer, pre-consumer or post-industrial recycled (PCR) polyethylene terephthalate (PET). The PBT moiety includes PBT derived from post-consumer, pre-consumer or post-industrial recycled (PCR) polyethylene terephthalate (PET), the high purity terephthalic moiety has a purity of at least about 95%, and the thermoplastic composition has an L* color value of at least 80 as determined according to a CIELab color space standard. Methods for forming the copolymer elastomer and compositions including it are also described.
A method of foaming and shaping a thermoplastic sheet comprising a poly(phenylene ether), a polyetherimide, or a combination thereof includes foaming the thermoplastic sheet with supercritical carbon dioxide to form a foamed thermoplastic sheet, and shaping the foamed thermoplastic sheet to form a shaped foamed thermoplastic sheet. The shaping step includes compressing the foamed thermoplastic sheet between a first metal plate and a secondi metal plate, each of which has a grooved surface facing the thermoplastic sheet. The first metal plate and the second metal plate are connected by a flexible, compressible linkage capable. When the flexible, compressible linkage is in its uncompressed state, only the second (lower) metal plate is in contact with the shaped foamed thermoplastic sheet. When the flexible, compressible linkage is in its compressed state, both the first (upper) and second (lower) metal plates are in contact with the shaped foamed thermoplastic sheet.
Aspects of the disclosure relate to a thermoplastic composition including: a first polymer component including at least one liquid crystalline polymer (LCP); a second polymer component including at least one thermoplastic polymer including polyphenylene oxide (PPO), polyetherimide (PEI), polyether ether ketone (PEEK), polyphenylene sulfide (PPS), polyphenylsulfone (PPSU), polyphthalamide (PPA), copolymers thereof, or a combination thereof; and an ionomer-based compatibilizer component. In some aspects the at least one LCP includes a thermotropic LCP.
Disclosed herein are polymer compositions comprising: from about 0.1 wt. % to about 99 wt. % of a polycarbonate copolymer, homopolymer or a blend thereof; from about 0.1 wt. % to about 70 wt. % of a crystalline polyester; from about 0.1 wt. % to about 50 wt. % of an inherently dissipative polymer; and from about 0.001 wt. % to about 10 wt. % of a transesterification inhibitor, wherein the combined weight percent value of all components does not exceed about 100 wt. %, and all weight percent values are based on the total weight of the polymer composition. The polymer composition may exhibit surface resistivity less than 1×109 Ohms when measured in accordance with ASTM D257.
A thermoplastic composition includes particular amounts of a poly(methyl methacrylate) and a radial hydrogenated block copolymer of an alkenyl aromatic and a conjugated diene having a particular alkenyl aromatic content. Methods for making the composition and articles made from the composition are also provided.
C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
C08L 53/02 - 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 of vinyl aromatic monomers and conjugated dienes
63.
BIFUNCTIONAL SIZING AGENT FOR IMPROVED ADHESION TO SUBSTRATES
A composition comprising a sizing agent comprising a bifunctional poly(arylene ether) comprising a silyl-containing group comprising a silyl-containing terminal group, a silyl-containing pendant group, or a combination thereof; and optionally comprising a terminal functional group, wherein the terminal functional group is not a silyl-containing terminal group or hydrogen.
C08G 65/48 - Polymers modified by chemical after-treatment
C08F 283/08 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals on to polyphenylene oxides
Disclosed herein are compositions comprising: a. from about 30 wt. % to about 60 wt. % of a polyphenylene sulfide (PPS); from greater than 20 wt. % to about 35 wt. % of a polyphenylene oxide (PPO); from about 0.01 wt. % to about 12 wt. % of a compatibilizer package, wherein the compatibilizer package comprises an ethylene-glycidyl methacrylate co-polymer, a styrene rubber copolymer, and an alicyclic saturated hydrocarbon resin present in a ratio of about 0.5:1:2 to about 3:1:4; and from about 20 wt. % to about 50 wt. % of an inorganic filler, wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composition, and wherein the composition exhibits a plating adhesion of at least 5B when tested in accordance with an ASTM D3359 cross hatch adhesion test.
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
65.
THERMOPLASTIC COMPOSITION, METHOD FOR THE MANUFACTURE THEREOF, AND ARTICLE COMPRISING THE COMPOSITION
A thermoplastic composition includes particular amounts of a poly(phenylene ether), an impact modifier including a hydrogenated block copolymer of an alkenyl aromatic and a conjugated diene, an organophosphate ester flame retardant, a flame retardant synergist including a phosphazene, and optionally, tricalcium phosphate. The thermoplastic composition can be useful for the manufacture of various articles, particularly for thin wall applications.
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
66.
THERMOPLASTIC COMPOSITION, METHOD FOR THE MANUFACTURE THEREOF, AND ARTICLE MADE THEREFROM
A thermoplastic composition includes particular amounts of a polyphenylene ether, a poly(phenylene ether)-poly(siloxane) block copolymer, a reinforcing filler, an organophosphate flame retardant, and an impact modifier comprising a hydrogenated block copolymer of an alkenyl aromatic and a conjugated diene. Methods for the manufacture of the composition and articles comprising the composition are also disclosed.
A composition includes a thermoplastic resin including: a polypropylene polymer; and from about 0.15 wt% to about 4.75 wt% of a filler comprising carbon nanotubes. The carbon nanotubes have an average diameter of about 5-15 nanometers (nm), a surface area of at least about 100 square meters per gram (m2/gr), and a volume resistivity of 10-3 Ohm.centimeters (Ohm.cm) or lower. The composition exhibits a volume electrical resistivity between 2.0E+14 Ohm.cm and 1.0E+03 Ohm.cm, and a molded sample of the composition exhibits a percent Absorbed Power measured in Transmission mode of at least 65% at frequencies of from about 75 GHz to about 110 GHz. Molded articles including micron-sized features that provide the article with high absorption and low reflection properties are also described.
A selectively permeable membrane for separating carbon dioxide from methane in a gaseous stream, the membrane comprising a carbonization product of a sulfonated poly(phenylene ether) copolymer, wherein the membrane has: a carbon dioxide permeability of at least 60×10−6 cm3 (STP)/cm2·s cm Hg; a selectivity for carbon dioxide to methane of greater than 40, as measured at 50° C. and 791 kPa; a methane slip of less than 0.6 vol %, based on total volume of methane input; a carbon dioxide recovery of greater than 75%; and a power consumption to produce a purified gaseous stream that is equivalent to less than 90 kJ/kg of natural gas in the purified gaseous stream, preferably, wherein the membrane further has a carbon footprint that is less than 75% of a carbon footprint of a comparable membrane that does not comprise the carbonization product of the sulfonated poly(phenylene ether) copolymer.
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
A composition includes specific amounts of a polycarbonate copolymer, a metallic effect additive, and, optionally, a bisphenol A homopolycarbonate. The polycarbonate copolymer can be a copolycarbonate comprising bisphenol A carbonate units and 2-phenyl-3,3-bis(4- hydroxyphenyl)phthalimidine carbonate units, a copolycarbonate comprising bisphenol A carbonate units and bisphenol isophorone carbonate units, a polyestercarbonate including resorcinol iso/terephthalate ester units and resorcinol carbonate units and bisphenol A carbonate units, a polyestercarbonate including sebacic acid-bisphenol A ester units and bisphenol A carbonate units, a polycarbonate-polysiloxane copolymers including bisphenol A carbonate units and polysiloxane carbonate units, a cyanophenol end-capped branched bisphenol A polycarbonate, or a combination thereof. The composition exhibits a desirable balance of metallic visual effects, chemical resistance, and mechanical properties.
A composition includes particular amounts of a liquid crystalline polymer; a thermoplastic polymer including a polyetherimide, a polyarylate, or a poly(arylene ether-sulfone); and a compatibilizer including a polyepoxy compound or a poly(ester-carbonate). Methods for the manufacture of the compositions and articles including the composition are also provided.
C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
C09K 19/54 - Additives having no specific mesophase
71.
LAMINATED FOAM ARTICLE AND ASSOCIATED METHOD AND ELECTRIC VEHICLE BATTERY PACK
A laminated foam article includes a foam core and fiber-reinforced skins adhered to opposing major surfaces of the foam core. The foam core includes specific amounts of a poly(phenylene ether), a polystyrene or rubber-modified polystyrene or combination thereof, a block copolymer that includes a polystyrene block and a polybutadiene block or a block copolymer that includes a polystyrene block and a hydrogenated polybutadiene block or a combination thereof, and an organophosphate flame retardant. The fiber-reinforced skins include specific amounts of reinforcing fibers and a thermoplastic skin composition. Also described is a method of forming the laminated foam article, and a battery pack that includes the laminated foam article.
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
B32B 5/24 - 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 one layer being a fibrous or filamentary layer
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
72.
COMPOSITION OF METHACRYLATE (CO) POLYMER AND POLY(CARBONATE-SILOXANE) BLOCKCOPOLYMER AND ITS USE IN SCRATCH AND IMPACT RESITANT ARTICLES
A composition includes (a) a methacrylate copolymer including repeating units derived from a Ci-io alkyl methacrylate; maleic anhydride, fumaric anhydride, maleimide, or a combination thereof; and a substituted or unsubstituted alkenyl aromatic monomer; or (b) a combination of a poly(methyl methacrylate) homopolymer and a copolymer comprising repeating units derived from maleic anhydride and an alkenyl aromatic monomer. The composition further includes a poly(carbonate-siloxane) having a siloxane content of 30 to 70 weight percent, based on the total weight of the poly(carbonate-siloxane). Methods of making the compositions and articles made therefrom are also described.
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C08J 3/00 - Processes of treating or compounding macromolecular substances
73.
POLYCARBONATE COPOLYMER COMPOSITIONS FOR RAIL INTERIORS
A polycarbonate composition comprising: a polycarbonate comprising a homopolycarbonate, a poly(ester-carbonate-siloxane), a poly(aliphatic ester-carbonate), a poly(ester-carbonate-siloxane), a brominated polycarbonate, a poly(ester-carbonate), or a combination thereof and optionally, a poly(phthalate-carbonate); a poly(carbonate-siloxane) present in an amount effective to provide 1-10 wt % total siloxane, based on the total weight of the composition; 11-25 wt % of a reinforcing composition comprising 10-24 wt % glass fibers, and 1-10 wt % mineral filler comprising talc, kaolin, calcium carbonate, wollastonite, or a combination thereof; optionally, an organophosphorous flame retardant in amount effective to provide up to 1.5 wt % phosphorous; optionally, up to 10 wt % additive composition, wherein each amount is based on the total weight of the polycarbonate composition, which sums to 100 wt %.
A capped polyindane oligomer of formula (1): (1) wherein R1, R2, and R3 are each independently hydrogen, halogen, C1-12 hydrocarbyl provided that the hydrocarbyl group is not tertiary hydrocarbyl, C1-12 hydrocarbylthio, C1-12 hydrocarbyloxy, or C2-12 halohydrocarbyloxy wherein at least two carbon atoms separate the halogen and oxygen atoms; and Rx and Ry are as provided herein.
A capped polyindane oligomer of formula (1): (1) wherein R1, R2, and R3 are each independently hydrogen, halogen, C1-12 hydrocarbyl provided that the hydrocarbyl group is not tertiary hydrocarbyl, C1-12 hydrocarbylthio, C1-12 hydrocarbyloxy, or C2-12 halohydrocarbyloxy wherein at least two carbon atoms separate the halogen and oxygen atoms; and Rx and Ry are as provided herein.
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
A thermoplastic composition comprising: 45-90 wt % of a polycarbonate; 5-15 wt % of a brominated polycarbonate; a polycarbonate-siloxane copolymer in an amount effective to provide 0.2-2 wt % siloxane based on the total weight of the thermoplastic composition; 2-10 wt % of a silicone-containing impact modifier comprising a core-shell impact modifier; 0.1-1 wt % of a flame retardant comprising an alkyl sulfonate salt, aromatic sulfone sulfonate, an aromatic sulfonate salt, or a combination thereof; optionally, 0.5-10 wt % titanium dioxide; optionally, 0.1-1 wt % carbon black, wherein the wt % of each component is based on the total weight of the composition, which totals 100 wt %.
Disclosed is a thermoplastic composition comprising from about 40 wt. % to about 95 wt. % of a thermoplastic resin, wherein the thermoplastic resin comprises a semicrystalline polymer; and from about 0.1 wt. % to about 5 wt. % of carbon nanotubes, wherein the carbon nanotubes have an aspect ratio less than about 200, wherein the composition exhibits a percent improvement in creep of at least 40% when measured in accordance with ASTM E139, and wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composition.
A polycarbonate composition includes particular amounts of a linear polycarbonate, a first poly(carbonate-siloxane) copolymer, a second poly(carbonate-siloxane) copolymer and optionally, one or more of a branched polycarbonate, a highly branched polycarbonate, or a second linear polycarbonate. Methods for the manufacture of the composition are also disclosed. The compositions can be particularly useful in the preparation of various articles, particularly thin-walled articles for application where a high degree of chemical resistance is desired.
Aspects of the disclosure relate to a composition including: from about 35 wt % to about 70 wt % of at least one polyethylene polymer; from about 25 wt % to about 55 wt % of at least one graphite filler; and from about 2 wt % to about 15 wt % of a carbon powder filler having a BET surface area of at least 50 square meters per gram (m2/g). The polyethylene polymer has a density of at least 0.94 gram per cubic centimeter (g/cm3), a melt flow rate (MFR) of at least 10 g per 10 minutes (g/10 min) measured at 190° C. and 21.6 kilogram (kg), and an Environmental Stress-Cracking Resistance (ESCR) of at least 500 hours. The composition has a volume electrical resistivity of less than 5 ohm·centimeter (ohm·cm) and a MFR of at least 4 g/10 min measured at 280° C. and 21.6 kg.
A method of converting poly(ethylene terephthalate) to terephthalic acid includes a glycolysis step in which poly(ethylene terephthalate) is reacted with ethylene glycol in the presence of a specific catalyst, a hydrolysis step in which the product of the glycolysis step is reacted with an alkali metal hydroxide to produce an alkali metal salt of terephthalic acid, and an acidification step in which the product of the hydrolysis step is acidified to yield a precipitate containing terephthalic acid. Each step of the method can be conducted at ambient or near-ambient pressure, and the method produces terephthalic acid in high yield and high purity.
C07C 51/09 - Preparation of carboxylic acids or their salts, halides, or anhydrides from carboxylic acid esters or lactones
C07C 51/47 - SeparationPurificationStabilisationUse of additives by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by chemisorption
An composition comprising: a homopolycarbonate; a poly(carbonate-siloxane) having a siloxane content of 30-70 wt %, preferably 35-65 wt %, based on the total weight of the poly(carbonate-siloxane) present in an amount effective to provide 2-10 wt % total siloxane, based on the total weight of the composition; an antimicrobial agent, wherein the antimicrobial agent is a silver zinc zeolite powder, wherein the antimicrobial agent is present in amount effective to provide up to 1000 parts per million of elemental silver based on the total weight of the composition and optionally, an additive composition.
C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
B29C 39/00 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
A thermoplastic composition includes: a polyester component; from 10 wt % to 50 wt % of a glass fiber filler; and up to 15 wt % of a flame retardant component. The composition includes less than 1 wt % of a component including nitrogen. The composition is sustainable in some aspects with a recycle content of at least 30%.
A polycarbonate composition includes particular amounts of a bisphenol A homopolycarbonate, a polycarbonate including repeating units derived from a substituted or unsubstituted cyclohexylidene-bridged bisphenol, and a polyester-carbonate. The composition can exhibit a combination of desirable properties, including low haze and good scratch resistance. Methods for the manufacture of the composition and articles including the composition are also disclosed.
A capped bisphenol polyether oligomer including a reactive end group, wherein the capped bisphenol polyether oligomer further includes a repeating unit derived from: a bisphenol monomer, a benzylic dihalide, a tertiary cycloalkyl dihalide, or a combination thereof; and optionally, the capped bisphenol polyether oligomer further includes a branching agent.
A molded article includes a composition having particular amounts of a polyamide, a polyphenylene ether, and a polyetherester amide. The molded article may be an automotive component. Methods for the manufacture of the composition and articles made from the composition are also disclosed.
A composition includes specific amounts of a copolycarbonate and a roughening agent. The copolycarbonate contains first carbonate units derived from a first bisphenol monomer such that a homopolycarbonate of the first bisphenol monomer has a glass transition temperature less than 155° C., and second carbonate units derived from a second bisphenol monomer such that a homopolycarbonate of the second bisphenol monomer has a glass transition temperature of 155° C. or higher. The roughening agent includes a particulate crosslinked polymethylsilsesquioxane having a median equivalent spherical diameter greater than 5 micrometers and less than or equal to 10 micrometers.
C08L 83/10 - Block- or graft-copolymers containing polysiloxane sequences
B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
A polycarbonate composition includes particular amounts of a bisphenol A polycarbonate homopolymer, a particular polycarbonate-siloxane copolymer and a phosphazene flame retardant Methods of making the composition and articles including the composition are also described.
A polycarbonate composition includes particular amounts of a bisphenol A homopolycarbonate having a weight average molecular weight of 28,000 g/mol or more, determined by gel permeation chromatography relative to linear bisphenol A polycarbonate standards, and a polycarbonate-siloxane copolymer having a siloxane content of 30 to 70 weight percent, based on the total weight of the polycarbonate-siloxane copolymer. The composition can provide a desirable combination of properties, including good flame performance, chemical resistance, and aesthetic properties.
A polycarbonate composition includes particular amounts of a bisphenol A homopolycarbonate, a first polycarbonate-siloxane copolymer having a siloxane content of 4 to 10 weight percent, based on the total weight of the first polycarbonate-siloxane copolymer, and a second polycarbonate-siloxane copolymer having a siloxane content of greater than 30 to 70 weight percent, based on the total weight of the second polycarbonate-siloxane copolymer. The composition can provide a desirable combination of properties, including good flame performance, chemical resistance, and aesthetic properties.
Disclosed is a composite comprising: from about 50 wt. % to about 99 wt. % of a thermoplastic resin, wherein the thermoplastic resin comprises a polyester; and from about 0.1 wt. % to 15 wt. % of a carbon fiber filler, wherein the carbon fiber has a bulk density of at least 500 g/l and a volume electrical resistivity of less than 2,000 μΩ#cm, with individual filaments that have a length-to-diameter ratio of at least 300, wherein a 3.175 mm thick molded sample of the composite exhibits a Transmission of less than 15% of incident microwave radiation when observed according to a Free Space method, measured at frequencies of 75 to 110 GHz, wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composite.
A thermoplastic composition includes: (a) from about 82 wt % to about 92 wt % of a thermoplastic resin including poly(phenylene ether) and polystyrene; and (b) from about 3 wt % to about 13 wt % of a carbon-based filler. The carbon-based filler has a specific surface area of at least 650 square meters per gram (m2/g) and an Oil Absorption Number of at least 250 milliliter per 100 gram (ml/100 g). The composition has a dielectric constant ε′ of between 3.5 and 10 and a dissipation loss ε″ of between 0.25 and 5, as measured at a frequency of between about 75 gigahertz (GHz) and about 110 GHz. A ⅛-inch-thick molded sample of the composition exhibits a Percent Absorbed Power measured in Transmission mode of at least 50% when observed according to a Free Space method at frequencies from about 75 GHz to about 110 GHz.
Disclosed herein are compositions comprising: a. from about 30 wt. % to about 70 wt. % of a polyphenylene sulfide; b. from greater than 0 wt. % to about 10 wt. % of a resin comprising polyphenylene oxide; c. from about 5 wt. % to about 15 wt. % of a laser activable metal compound; and d. from about 10 wt. % to about 70 wt. % of an inorganic filler, wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composition.
A composition including particular amounts of a polyetherimide or a poly(arylene ether sulfone) and an inorganic filler is described herein. Molded samples of the composition can exhibit an advantageous combination of properties, and the composition can be used in various articles. Methods of making the composition are also described.
A thermoplastic composition includes: (a) from about 5 wt % to about 75 wt % of a polycarbonate component; (b) from about 10 wt % to about 60 wt % of a low refractive index polyester that is miscible with polycarbonate; (c) from about 10 wt % to about 30% of an inherently dissipative polymer (IDP) having a refractive index at room temperature of at least 1.50; and (d) from about 5 wt % to about 75 wt % of a copolymer comprising polycarbonate and isophthalate terephthalate resorcinol (ITR).
A thermoplastic composition includes particular amounts of a post-consumer recycle polycarbonate; a polycarbonate-siloxane copolymer, a polycarbonate-ester, or a branched polycarbonate, or a copolycarbonate comprising repeating units derived from a bulky bisphenol group; and optionally, one or more linear homopolycarbonates having a particular melt flow rate. The composition can provide a desirable combination of properties and can be particularly useful for a variety of articles, including consumer electronics.
A thermoplastic composition includes: (a) from about 5 wt % to about 90 wt % of an aliphatic polyester-polycarbonate copolymer; (b) from about 5 wt % to about 65 wt % of a polycarbonate component different from the aliphatic polyester-polycarbonate copolymer in element (a); and (c) from greater than 5 wt % to about 30 wt % of an inherently dissipative polymer (IDP). The composition has a heat distortion temperature of at least 90° C. at 1.8 MPa and 4.0 mm as determined in accordance with ISO 75 and a notched Izod impact strength at 23° C. of at least 25 kJ/m2 as tested in accordance with ISO 180 at a thickness of 4.0 mm. In further aspects the composition has improved surface gloss properties as compared to a comparative composition that does not include the aliphatic polyester-polycarbonate copolymer of element (a).
A polycarbonate composition includes particular amounts of a polycarbonate, a polycarbonate-siloxane copolymer, a triazine-containing UV absorbing agent, and phosphazene flame retardant. The composition can provide a desirable combination of properties. Methods for the manufacture of the composition and articles including the composition are also disclosed.
A polycarbonate composition comprising: 35 to 98 wt % of a poly(carbonate-co-monoarylate ester) comprising aromatic carbonate units, monoaryl carbonate units, or a combination thereof and monoaryl ester units, and optionally aromatic ester units; to less than 50 wt % of a poly(ester) composition comprising greater than 20 to less than 50 wt % of poly(ethylene terephthalate), or 2 to less than 50 wt % of a poly(ester) different from poly(ethylene terephthalate), or a combination of 1-49 wt % of poly(ethylene terephthalate) and 1-49 wt % of a poly(ester) different from poly(ethylene terephthalate); 1 to 50 wt % of a homopolycarbonate, a poly(aliphatic ester-carbonate), or a combination thereof; optionally, 0.001 to 10 wt % of an additive composition; and optionally, 0.5 to 6 wt % of an organophosphorous flame retardant.
Thermoplastic compositions include: (a) a polyester component; (b) a polycarbonate copolymer component including a polyester-polycarbonate copolymer, a polycarbonate-dimethyl bisphenol cyclohexane copolymer (DMBPC), or a combination thereof; (c) an impact modifier component including a copolymer including two monomers; and (d) a glass fiber component.
Thermoplastic compositions include from about 40 wt % to about 90 wt % of a crystalline polymer, from about 5 wt % to about 50 wt % basalt fibers, from about 1 wt % to about 20 wt % of an impact modifier, and from about 5 wt % to about 20 wt % of a polycarbonate copolymer having isophthalate-terephthalate-bisphenol A ester units. In some aspects the crystalline polymer includes polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), copolymers thereof, or a combination thereof. The thermoplastic compositions are suitable for use in nano molding technology (NMT) applications, and in particular for consumer electronics applications.
A polycarbonate composition includes particular amounts of a bisphenol A polycarbonate homopolymer, a first poly-carbonate-siloxane copolymer having a siloxane content of 10 to 30 weight percent, based on the total weight of the first polycarbon-ate-siloxane copolymer, a second polycarbonate-siloxane copolymer having a siloxane content of greater than 30 to 55 weight percent, preferably 35 to 50 weight percent, based on the total weight of the second polycarbonate-siloxane copolymer, and an organophosphorus flame retardant. Methods of making the composition and articles including the composition ar also described.
