A p-phenylenediamine rubber antidegradant compound has a cycloalkyl structure named N-(3,5,5-trimethylcyclohexyl)-N′-phenyl p-phenylenediamine. The compound is prepared by reacting a compound A, 4-aminodiphenylamine, and hydrogen in a condensation hydrogenation reaction in presence of a catalyst, and the compound A is 3,5,5-trimethyl-2-cyclohexen-1-one, 3,3,5-trimethylcyclohexanone, 3,3,5-trimethylcyclohexanol, or combination thereof.
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
C08K 5/18 - Amines; Quaternary ammonium compounds with aromatically bound amino groups
A method for preparing methyl isobutyl ketone comprises reacting mesityl oxide and methyl isobutyl alcohol under the action of a copper-based catalyst to produce methyl isobutyl ketone, where mesityl oxide and methyl isobutyl alcohol are employed to carry out hydrogen in-situ transfer under the action of the copper-based catalyst, and methyl isobutyl ketone is prepared in one step. The entire reaction process does not require an external hydrogen system. The reaction is carried out under normal pressure, and the process flow is short. The reaction has high atom utilization, high safety, and is suitable for popularization and industrial application.
A rubber antidegradant having a structure represented by Formula A and a method for preparing the same are provided. The rubber antidegradant of the present invention may impart rubber good thermal oxidative aging resistance, ozone aging resistance, discoloration resistance, and durable performance.
A rubber antidegradant having a structure represented by Formula A and a method for preparing the same are provided. The rubber antidegradant of the present invention may impart rubber good thermal oxidative aging resistance, ozone aging resistance, discoloration resistance, and durable performance.
A polyalkyl p-phenylenediamine antidegradant having a structure represented by Formula I, its intermediates and a preparation method thereof are provided. The polyalkyl p-phenylenediamine antidegradant provides good thermal oxidative aging resistance and UV aging resistance.
B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
C08K 5/18 - Amines; Quaternary ammonium compounds with aromatically bound amino groups
A polyalkyl p-phenylenediamine antidegradant having a structure represented by Formula I, its intermediates and a preparation method thereof are provided. The polyalkyl p-phenylenediamine antidegradant provides good thermal oxidative aging resistance and UV aging resistance.
A polyalkyl p-phenylenediamine antidegradant having a structure represented by Formula I, its intermediates and a preparation method thereof are provided. The polyalkyl p-phenylenediamine antidegradant provides good thermal oxidative aging resistance and UV aging resistance.
B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
C08K 5/18 - Amines; Quaternary ammonium compounds with aromatically bound amino groups
abb are as defined in the description. The rubber anti-aging agent can endow rubber with good thermo-oxidative aging resistance, ozone aging resistance, discoloration resistance and durability.
C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
C08K 5/18 - Amines; Quaternary ammonium compounds with aromatically bound amino groups
Provided are a polyalkyl p-phenylenediamine anti-aging agent having a structure as shown in formula I, and an intermediate thereof and a preparation method therefor. The polyalkyl p-phenylenediamine anti-aging agent has good thermo-oxidative aging resistance and ultraviolet aging resistance.
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
C08K 5/18 - Amines; Quaternary ammonium compounds with aromatically bound amino groups
C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
8.
Method for preparing diaryl p-phenylenediamine compounds
3 are independently selected and each is H, a C1-C8 alkyl, a C3-C8 cycloalkyl, a C1-C8 alkoxy, a C3-C8 cycloalkoxy, or phenyl; a and c are independently selected and each is an integer of 0 to 5, and b is an integer of 0 to 4:
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
1233 are each independently selected from H, C1-C8 alkyl, C3-C8 cycloalkyl, C1-C8 alkoxy, C3-C8 cycloalkoxy and phenyl, a and c are each independently an integer from 0 to 5, and b is an integer from 0 to 4.
C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
The present invention provides a method for preparing methyl isobutyl ketone. The method comprises: reacting mesityl oxide and methyl isobutyl alcohol under the action of a copper-based catalyst to produce methyl isobutyl ketone. In the present invention, mesityl oxide and methyl isobutyl alcohol are employed to carry out hydrogen in-situ transfer under the action of a copper-based catalyst, and methyl isobutyl ketone is prepared in one step. The entire reaction process does not require an external hydrogen system. The reaction is carried out under normal pressure and the process flow is short, has the advantages of high atom utilization, high safety and the like, and is suitable for popularization and industrial application.
Disclosed in the present invention are a novel p-phenylenediamine rubber anti-aging agent containing a cycloalkyl structure: N-(3,5,5-trimethylcyclohexyl)-N'-phenyl p-phenylenediamine, and a synthesis method therefor. The present rubber anti-aging agent can increase the vulcanization speed of a rubber material, shorten scorching time, improve heat-resistant oxygen aging performance of the rubber, and at the same time, keep good original physical properties, flexing resistance and dynamic fatigue resistance.
C07C 209/28 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with other reducing agents
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Diphenylamine; vulcanising preparations; accelerant;
antioxidant; vulcanisation accelerators; catalysts for use
in the manufacture of synthetic materials, rubber and
polymers; antioxidants for use in manufacture; petroleum
dispersants; catalysts for use in the oil processing
industry; rubber protective agent; rubber preservatives;
chemical intensifiers for rubber; dispersions of plastics;
plasticizers; fire retarder (term linguistically incorrect
in the opinion of the International Bureau – Rule 13 (2) (b)
of the Regulations).
13.
Rubber protective wax, preparation method and application thereof
A rubber protective wax, comprising hydrocarbon compounds, a polyethylene wax and an antidegradant. The rubber protective wax of the present invention can render rubber good thermal oxidative aging resistance, static ozone aging resistance, dynamic ozone aging resistance, flex cracking resistance and tensile fatigue resistance, and has good protection effects in both static environment and dynamic load environment.
A compound having anti-aging and discoloration resistance effects and a preparation method therefor are provided. The structure of the compound is represented by formula (I). The compound provides longer-lasting anti-aging performance, and has discoloration resistance. The compound may be used as an anti-aging agent in rubber products, especially rubber tires, and can prevent the aging and deterioration of rubber products or rubber tires due to light, heat, oxygen, and fatigue, during use.
A compound having anti-aging and discoloration resistance effects and a preparation method therefor are provided. The structure of the compound is represented by formula (I). The compound provides longer-lasting anti-aging performance, and has discoloration resistance. The compound may be used as an anti-aging agent in rubber products, especially rubber tires, and can prevent the aging and deterioration of rubber products or rubber tires due to light, heat, oxygen, and fatigue, during use.
An antidegradant composition, an antidegradant master batch comprising the antidegradant composition and a rubber composition comprising the antidegradant composition or the antidegradant master batch. The antidegradant composition comprises antidegradant TMPPD and one or two selected from antidegradant N3100-B and an antidegradant N3100-C. The antidegradant composition and antidegradant master batch render a rubber compound and a rubber article excellent discoloration resistance, fatigue resistance, ozone resistance, and mechanical properties before and after thermal oxidative aging and enables the rubber compound to be used in the manufacture of all or part of the rubber matrix, especially as a tire sidewall rubber composition and a tire tread rubber composition.
An antidegradant composition, an antidegradant master batch comprising the antidegradant composition and a rubber composition comprising the antidegradant composition or the antidegradant master batch. The antidegradant composition comprises antidegradant TMPPD and one or two selected from antidegradant N3100-B and an antidegradant N3100-C. The antidegradant composition and antidegradant master batch render a rubber compound and a rubber article excellent discoloration resistance, fatigue resistance, ozone resistance, and mechanical properties before and after thermal oxidative aging and enables the rubber compound to be used in the manufacture of all or part of the rubber matrix, especially as a tire sidewall rubber composition and a tire tread rubber composition.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
17 - Rubber and plastic; packing and insulating materials
Goods & Services
(1) Synthetic resins, unprocessed; artificial resins, unprocessed; plasticizers; dispersions of plastics for use in the manufacture of rubber; unprocessed artificial resins as raw materials in the form of powders, liquids or pastes; vulcanisation accelerator chemical preparations; vulcanisation antioxidant; vulcanisation accelerators; fire retardant; adhesives for use in the construction industry; adhesives for use in the consumer packaging industry; adhesives for use in the furniture industry; adhesives for use in the textile industry; adhesives for use in the automobile industry; mastic for tires [tyres].
(2) Synthetic resin dyes for use on wood, metal and stone; synthetic resin coatings in the nature of stains for use on wood, metal and stone; resins for coating purposes, namely, resin-based coatings for use on roofs, walls, pavements, and metal; colophony, namely, raw natural resins; copal; natural resins, raw; gum resins; unprocessed natural resins for use in the manufacture of adhesives; mastic being unprocessed natural resin for use as sealants and varnishes; sandarac.
(3) Synthetic rubber; polysulfide rubber; rubber, semi-worked; artificial resins, semi-finished; synthetic resins, semi-processed; artificial resins, semi-processed; plastics, semi-processed; semi-processed acrylic and natural resins; insulating materials made of polyethylene foam; insulating materials made of polyurethane foam; plastic pellets for packing; rubber sheets for packing purposes.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Diphenylamine; vulcanising preparations, namely, chemical preparations for vulcanizing; accelerant, namely, chemical preparation for accelerating the process of vulcanization; antioxidant for use in the manufacture of rubber goods; vulcanization accelerators; chemical intermediates for the production of catalysts for synthetic materials, rubber and polymers; antioxidants for use in manufacture; petroleum dispersants; catalysts for use in the oil processing industry; rubber protective agent, namely, chemical preparations for use in the processing of rubber providing protection; rubber preservatives, namely, chemical preservatives for use in the manufacture of rubber; chemical intensifiers for use in the manufacture of rubber; dispersions of plastics for use in the manufacture of rubber; plasticizers; fire retarder, namely, fire retardant chemicals
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Diphenylamine; vulcanising preparations; vulcanisation accelerator chemical preparations; vulcanisation antioxidants; vulcanisation accelerators; catalysts for use in the manufacture of synthetics, rubbers and polymers; antioxidants for use in manufacture of synthetics, rubbers and polymers; petroleum dispersants; catalysts for use in the oil processing industry; rubber protective agent namely, chemical preparations for protecting rubber; rubber preservatives; chemical intensifiers for rubber; dispersions of plastics for use in the manufacture of rubber; plasticizers; fire retarder, namely, fire retardant chemicals.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Synthetic resins, unprocessed; artificial resins, unprocessed; plasticizers; dispersions of plastics for use in the manufacture of a wide variety of goods; unprocessed artificial resins as raw materials in powder, liquid or paste form; accelerant, namely, vulcanization accelerators, accelerators for setting cement; antioxidant for use in manufacture; vulcanization accelerators; fire retardant chemicals; synthetic resin adhesive for industrial use; mastic adhesive for tires Synthetic resin dyes; synthetic resin coatings in the nature of stains; resins for coating purposes, namely, resin-based coatings for use on roofs, walls, pavements, and metal; colophony, namely, raw natural resins; copal; natural resins, raw; gum-lac resins; unprocessed natural resins for use in the manufacture of adhesives; mastic being unprocessed natural resin; sandarac Synthetic rubber; polysulfide rubber; rubber, semi-worked; artificial resins, semi-finished; synthetic resins, semi-processed; artificial resins, semi-processed; plastics, semi-processed; semi processed resins; insulating materials; packing materials of rubber or plastics
22.
RUBBER COMPOSITION WITH REDUCED ODOR AND GOOD THERMAL OXIDATIVE AGING-RESISTANT AND ANTI-FATIGUE PROPERTIES
A formulation for rubber composition with reduced odor and good thermal oxidative aging-resistance and tension fatigue resistance comprising 100 parts by weight of a diene elastomer, 30 to 70 parts by weight of a reinforcing filler, 0.1 to 8 parts by weight of an antidegradant composition, and 0.5 to 3 parts by weight of a crosslinker, wherein the antidegradant composition includes a 6PPD antidegradant with a purity of equal to or greater than about 98%and an S-TMQ. The rubber composition has no added odor inhibitor/adsorbent or deodorizing additive, while by using combination of a 6PPD antidegradant with purity of equal to or greater than about 98%and an S-TMQ instead of traditional combination of a 6PPD antidegradant and a TMQ antidegradant, the VOC emission of the rubber composition is effectively reduced, the odor grade is reduced, and the thermal oxidative aging-resistance and tension fatigue resistance is improved.
A formulation for rubber composition with reduced odor and good thermal oxidative aging-resistance and tension fatigue resistance comprising 100 parts by weight of a diene elastomer, 30 to 70 parts by weight of a reinforcing filler, 0.1 to 8 parts by weight of an antidegradant composition, and 0.5 to 3 parts by weight of a crosslinker, wherein the antidegradant composition includes a 6PPD antidegradant with a purity of equal to or greater than about 98%and an S-TMQ. The rubber composition has no added odor inhibitor/adsorbent or deodorizing additive, while by using combination of a 6PPD antidegradant with purity of equal to or greater than about 98%and an S-TMQ instead of traditional combination of a 6PPD antidegradant and a TMQ antidegradant, the VOC emission of the rubber composition is effectively reduced, the odor grade is reduced, and the thermal oxidative aging-resistance and tension fatigue resistance is improved.
A formulation for rubber composition with reduced odor and good thermal oxidative aging-resistance and tension fatigue resistance comprising 100 parts by weight of a diene elastomer, 30 to 70 parts by weight of a reinforcing filler, 0.1 to 8 parts by weight of an antidegradant composition, and 0.5 to 3 parts by weight of a crosslinker, wherein the antidegradant composition includes a 6PPD antidegradant with a purity of equal to or greater than about 98% and an S-TMQ. The rubber composition has no added odor inhibitor/adsorbent or deodorizing additive, while by using combination of 6PPD with purity of equal to or greater than about 98% and an S-TMQ instead of traditional combination of 6PPD and a TMQ, the VOC emission of the rubber composition is effectively reduced, the odor grade is reduced, and the thermal oxidative aging-resistance and tension fatigue resistance is improved.
e3e33 catalyst, to obtain a compound of formula A. In formulas A-D, the groups are defined as described in the text. The method can efficiently and conveniently prepare the asymmetric diaryl substituted p-phenylenediamine compound.
122 is C3-C10 linear or branched alkyl, C3-C10 cycloalkyl, phenyl, or C3-C10 alkyl substituted phenyl. The compound can provide better thermal oxidative fatigue aging resistance, long-term protection performance, and stronger discoloration resistance with respect to conventional anti-aging agents. The compound can be applied as an additive to plastics, elastomers, lubricating oils, etc., and can delay the degradation trend in a use process caused by oxide, ozone, repetitive mechanical action, etc.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical accelerants; Accelerants for speeding up chemical reactions; Light protectors in the form of antioxidants; Vulcanisation accelerators; Chemical agents for manufacturing dyestuffs; Chemical products for brightening dyestuffs; Chemical reagents for non-medical purposes; Chemical diagnostic reagents for industrial use; Chemical reagents for use in industry; Chemical reagents, other than for medical or veterinary purposes; Antioxidants for use in manufacture; Rubber preservatives; Chemical intensifiers for rubber; Dispersions of plastics; Plasticizers; Compositions for repairing tires [tyres]; Glue for industrial purposes; Adhesives for industrial purposes; Mastic for tires [tyres]; Cement for footwear; Tyre repair adhesives.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Vulcanisation accelerators; chemical reagents for manufacture of dyeing assistants; chemical reagents for non-medical purposes, namely, for use in the manufacture of dyes; antioxidants for use in manufacture; rubber preservatives; chemical intensifiers for use in the manufacture of rubber; dispersions of plastics for use in the manufacture of a wide variety of goods; plasticizers; chemical compositions for repairing tires; emulsion glue for industrial purposes; adhesives for industrial purposes; mastic adhesives for tires; contact cement for use in the manufacture of footwear; adhesives being chemical compositions for repairing pneumatic tires
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Vulcanising preparations; antioxidant; antioxidants for use
in manufacture; accelerant; vulcanisation accelerators
[chemical preparation]; rubber preservative agent; chemical
intensifiers for rubber; catalysts for use in the oil
processing industry; petroleum dispersants; catalysts for
use in the manufacture synthetic materials, rubber and
polymers; rubber preservatives; plasticizers; dispersions of
plastics; fire retardant.
30.
Low-pollution antidegradant compound and antidegradant composition and rubber composition comprising the same for tires
Antidegradant composition comprising a first compound of Formula I:
and a second antidegradant that is not the compound of Formula I; and rubber composition comprising the antidegradant composition. The rubber composition has good resistance to appearance discoloration while maintaining the mechanical and anti-aging properties, thus, are suitable for making the entire tire or as part of the rubber matrix.
Provided are a compound having anti-aging and discoloration resistance effects and a preparation method therefor. The compound has the structure represented by formula (I) below, wherein R, R1 and R2 are as defined herein. Compared with existing anti-aging agent products, the described compound has longer-lasting anti-aging performance, and has discoloration resistance. Moreover, the compound can be used as an anti-aging agent in rubber products, especially rubber tires, and can prevent the aging and deterioration of rubber products or rubber tires due to light, heat, oxygen, fatigue, and so on during use.
122 are as defined herein. Compared with existing anti-aging agent products, the described compound has longer-lasting anti-aging performance, and has discoloration resistance. Moreover, the compound can be used as an anti-aging agent in rubber products, especially rubber tires, and can prevent the aging and deterioration of rubber products or rubber tires due to light, heat, oxygen, fatigue, and so on during use.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Vulcanising preparations, namely, chemical preparations for vulcanizing; antioxidants, namely, antioxidants for use in manufacture; accelerant, namely, vulcanisation accelerators being chemical preparations; rubber preservative agent; chemical intensifiers for use in the manufacture of rubber; catalysts for use in the oil processing industry; petroleum dispersants; catalysts for use in the manufacture synthetic materials, rubber and polymers; rubber preservatives; plasticizers; dispersions of plastics for use in the manufacture of a wide variety of goods; fire retardant chemicals
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Vulcanising preparations; antioxidants, namely additives for rubbers, plastics and lubricants intended to prolong the life of those substances by increasing their oxidative resistance; antioxidants for use in the manufacture of synthetics, rubbers and polymers; accelerant for use in chemicals; vulcanisation accelerators [chemical preparation]; rubber preservative agent; chemical intensifiers for rubber; catalysts for use in the oil processing industry; petroleum dispersants; catalysts for use in the manufacture synthetic materials, rubber and polymers; rubber preservatives; plasticizers; dispersions of plastics for use in the manufacture of synthetics, rubbers and polymers; fire retardant.
35.
LOW-POLLUTION ANTIDEGRADANT COMPOUND AND ANTIDEGRADANT COMPOSITION AND RUBBER COMPOSITION COMPRISING THE SAME FOR TIRES
Antidegradant compound of Formula (I) and antidegradant composition comprising the same and rubber composition comprising the antidegradant compound or composition. The rubber composition has good resistance to appearance discoloration while maintaining the mechanical and anti-aging properties, thus, are suitable for making the entire tire or as part of the rubber matrix.
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
Antidegradant compound of Formula I:
and antidegradant composition comprising the same and rubber composition comprising the antidegradant compound or composition. The rubber composition has good resistance to appearance discoloration while maintaining the mechanical and anti-aging properties, thus, are suitable for making the entire tire or as part of the rubber matrix.
Antidegradant compound of Formula (I) and antidegradant composition comprising the same and rubber composition comprising the antidegradant compound or composition. The rubber composition has good resistance to appearance discoloration while maintaining the mechanical and anti-aging properties, thus, are suitable for making the entire tire or as part of the rubber matrix.
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical additives for use in the manufacture of rubber; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; chemical additives for use in paper making; color intermediates, namely, chemical additives for use in the manufacturing of color pigments; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticides
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Sulfur; diphenylamine; chemical preparations in the nature of vulcanization accelerators; antioxidant for use in manufacture; vulcanization accelerators; chemical reagent for non-medical purposes, namely, for use in the manufacture of dyes; chemical reagent for manufacture of dyeing assistants; rubber preservatives; chemical intensifiers for rubber; chemical additives for oils; chemicals for use in the manufacture of paper; chemical additives for insecticides; chemical additives for fungicides; dispersions of plastics for use in the manufacture of a wide variety of goods; plasticizers; fire retardant chemicals; chemical compositions for repairing tires; emulsion glue for industrial purposes; adhesives for industrial purposes; cement for use in the manufacture of footwear; rubber cement for repairing pneumatic tires; mastic adhesives for tires Synthetic rubber; polysulfide rubber; semi-worked rubber; plastic substances, semi-processed; plastic profiles for deep processing; padding materials of rubber or plastics; industrial hoses made of plastic; plastics in extruded form for use in manufacture; insulating materials
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
Goods & Services
accelerant; rubber preservatives; chemical additives for oils; chemical additives to insecticides; chemical intensifiers for rubber; chemical additives to fungicides; adhesives for industrial purposes; chemical reagent for manufacture of dyeing assistants; compositions for repairing tires [tyres]; chemicals for use in the manufacture of paper; plasticizers; diphenylamine; dyestuff assister; cement for pneumatic tires; dispersions of plastics; emulsion glue for industrial purposes; antioxidants for use in manufacture; mastic for tires; sulphur [non-metallic element]; antioxidant; vulcanization accelerators [chemical preparation]; cement for footwear; fire retardant. insulating materials; hoses made of plastic; polysulfide rubber; synthetic rubber; semi-worked rubber; plastic substances, semi-processed; plastics in extruded form for use in manufacture; plastic profiles for deep processing; padding materials of rubber or plastics.
41.
NOVEL AND LONG-ACTING RUBBER ANTI-DEGRADANT AND RUBBER COMPOSITION COMPRISING THE SAME FOR TIRES
Novel and long-acting rubber anti-degradant and rubber composition comprising the same for tires. The anti-degradant comprises at least two compounds, each of which is selected from a compound of Formula I, II, III-a, or III-b: and each of the compounds have different formulae from others, and can't be compounds of formula III-a and III-b at the same time when the anti-degradant consists of only 2 compounds. The anti-degradant is used to provide a rubber composition with improved long-term resistance to thermo-oxidative aging and ozone aging.
C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
Novel and long-acting rubber anti-degradant and rubber composition comprising the same for tires. The anti-degradant comprises at least two compounds, each of which is selected from a compound of Formula I, II, III-a, or III-b: and each of the compounds have different formulae from others, and can't be compounds of formula III-a and III-b at the same time when the anti-degradant consists of only 2 compounds. The anti-degradant is used to provide a rubber composition with improved long-term resistance to thermo-oxidative aging and ozone aging.
C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
Novel and long-acting rubber anti-degradant and rubber composition comprising the same for tires. The anti-degradant comprises at least two compounds, each of which is selected from a compound of Formula I, II, III-a, or III-b:
and each of the compounds have different formulae from others, and can't be compounds of formula III-a and III-b at the same time when the anti-degradant consists of only 2 compounds. The anti-degradant is used to provide a rubber composition with improved long-term resistance to thermo-oxidative aging and ozone aging.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Rubber preservatives; chemical intensifiers for rubber;
antioxidants for use in manufacture; fire retardants;
vulcanisation accelerators; chemical additives to
fungicides; plasticizers; tyre adhesive; auxiliary fluids
for use with dyestuff; chemicals for use in the manufacture
of paper; chemical reagent in the manufacture of dye;
emulsion glue for industrial purposes; antioxidants for use
in manufacture; adhesives for industrial purposes; sulphur;
chemical preparations in the nature of accelerators;
chemical additives to insecticides; diphenylamine; chemical
preparations and substances for use as pharmaceutical
intermediates; chemical additives for oils; dispersions of
plastics; cement for footwear; pneumatic tyre adhesive;
mastic for tires [tyres].
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical preparations in the nature of accelerators;
chemical additives to insecticides; adhesives for industrial
purposes; cement for footwear; auxiliary fluids for use with
dyestuff; tyre adhesive; sulphur; chemical additives to
fungicides; mastic for tires [tyres]; diphenylamine;
chemical intensifiers for rubber; dispersions of plastics;
pneumatic tyre adhesive; fire retardants; vulcanisation
accelerators; antioxidants for use in manufacture;
plasticizers; chemical intermediates for use in the
manufacture of pharmaceutical intermediates; antioxidants
for use in manufacture; emulsion glue for industrial
purposes; chemicals for use in the manufacture of paper;
chemical reagent in the manufacture of dye; rubber
preservatives; chemical additives for oils.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Antioxidant; pharmaceutical intermediates; cement for
footwear; pneumatic tyre adhesive; tyre adhesive; chemical
additives to insecticides; dyestuff assister; adhesives for
industrial purposes; sulphur; vulcanization accelerant;
chemical additives to fungicides; mastic for tires [tyres];
plasticizers; vulcanisation accelerators; dispersions of
plastics; diphenylamine; fire retarder; rubber
preservatives; chemical intensifiers for rubber;
antioxidants for use in manufacture; emulsion glue for
industrial use; chemicals for the manufacture of paper;
chemical reagent for production of dye; chemical additives
for oils.
47.
Method for preparing aryl substituted p-phenylenediamine substance
A method for preparing an aryl substituted p-phenylenediamine substance is provided. A structural formula of the aryl substituted p-phenylenediamine substance is shown as Formula (I′), where each of R′ and R″ is phenyl or o-methylphenyl, and R′ is same as or different from R″; and the method comprises that: a raw material A and a raw material B are reacted in the presence of a hydrogen acceptor and a catalyst to form the aryl substituted p-phenylenediamine substance, the raw material A having a structure shown as Formula (I), the raw material B being cyclohexanone and/or o-methylcyclohexanone and the hydrogen acceptor being a hydrogen acceptor capable of accepting hydrogen for conversion into the raw material B. Raw materials are low in cost and readily available; use of a large amount of water for post-treatment is avoided. The reaction condition is relatively mild, and corrosion to equipment is avoided.
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
C07C 209/68 - Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
A method for preparing 2-mercaptobenzothiazole where the aniline method is adopted to perform reaction in the presence of a catalyst, and the catalyst includes sulfonic acid type imidazolium ionic liquid. The sulfonic acid type imidazolium ionic liquid is a type of acidic functionalized ionic liquid, and has the advantages of both a solid acid and a liquid acid. The sulfonic acid type imidazolium ionic liquid is adopted as an active ingredient of the catalyst, and may remarkably improve a conversion rate of the reaction raw materials and increase a yield of the 2-mercaptobenzothiazole. Meanwhile, due to the characteristics of high catalytic activity, no volatilization, low corrosion, high thermal stability and the like of the 2-mercaptobenzothiazole, the preparation method also has the comprehensive advantages of simple process, low cost, low tar yield, high environment friendliness and the like.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical preparations in the nature of vulcanization accelerators; chemical additives for insecticides and fungicides; adhesives for industrial purposes; auxiliary fluids for use with dyestuff for general industrial use; mastic adhesives for tires; sulphur; industrial chemicals, namely, chemical intensifiers for rubber; dispersions of plastics for use in the manufacture of thermosetting plastic refractory materials and thermoplastics; fire retardant chemicals; vulcanization accelerators; antioxidants for use in manufacture; plasticizers; pharmaceutical intermediates, namely, diphenylamine and phenylenediamine; glue for industrial purposes, namely, emulsion glue; chemical preparations for use in the manufacture of paper; chemical reagents for non-medical purposes for use in the manufacture of dye; rubber preservatives; chemical additives for oils
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Rubber preservatives; chemical intensifiers for use in processing rubber; antioxidants for use in manufacture; fire retardant chemicals; vulcanization accelerators; chemical additives to fungicides and insecticides; plasticizers; mastic adhesives for tires; chemicals for use in the manufacture of paper; chemical reagent used in the manufacture of dye; emulsion glue for industrial purposes; adhesives for industrial purposes; sulphur; diphenylamine; chemical preparations and substances for use as pharmaceutical intermediates; chemical additives for oils; dispersions of plastics for use in the manufacture of thermosetting plastic refractory materials and thermoplastics
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Antioxidants for use in manufacture; pharmaceutical intermediates, namely, diphenylamine and phenylenediamine; adhesives for the manufacture of tires; chemical additives to insecticides and fungicides; dyestuff assister, namely chemical agents for manufacturing dyestuff; adhesives for industrial purposes; sulphur; vulcanization accelerant; plasticizers; vulcanization accelerators; dispersions of plastics for use in the manufacture of thermosetting plastic refractory materials and thermoplastics; fire retarder, namely, fire retardant chemicals; rubber preservatives; chemical intensifiers for use in the manufacture of rubber; emulsion glue for industrial use; chemicals for the manufacture of paper; chemical reagent for production of dye; chemical additives for oils
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Vulcanization accelerators; catalysts; chemical preparations
for use in the manufacture of pharmaceuticals; chemicals for
use in the production of synthetic rubber; chemical
preparations for use in paper making; color-brightening
chemicals for industrial use; chemical additives for
pesticides; vulcanising preparations; chemical additives for
oils; water-purifying chemicals.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Flame retardant compositions; diphenylamine; vulcanization accelerators; accelerant for use in chemicals; antioxidants, namely additives for rubbers, plastics and lubricants intended to prolong the life of those substances by increasing their oxidative resistance; chemical additives to fungicides; chemical additives to insecticides; dispersions of plastic, namely chemical additives for use in the manufacture of plastic; plasticizers; synthetic resin adhesives for industrial purposes; cement for footwear; cement for pneumatic tires; cement for tires; mastic for tires; dyestuff assister, namely chemical agents for manufacturing dyestuffs, chemical products for brightening dyestuffs; rubber additives; pharmaceutical intermediates, namely chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color intermediates, namely, chemical agents for use in the manufacture of paint colours for industrial purposes; pesticide intermediates, namely chemical additives for use in the manufacturing of pesticide; chemical additives for oil additives, namely chemical additives for engine oil; catalysts for use in the manufacture of industrial chemicals; water purifying chemical
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Flame retardant compositions; diphenylamine; vulcanization accelerators; accelerant for use in chemicals; antioxidants, namely additives for rubbers, plastics and lubricants intended to prolong the life of those substances by increasing their oxidative resistance; chemical additives to fungicides; chemical additives to insecticides; dispersions of plastics, namely non-chemical additives for use in the manufacture of plastic; plasticizers; synthetic resin adhesives for industrial purposes; cement for footwear; cement for pneumatic tires; cement for tires; mastic for tires; dyestuff assister, namely chemical agents for manufacturing dyestuffs, chemical products for brightening dyestuffs; rubber additives; pharmaceutical intermediates, namely chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color intermediates, namely chemicals for use in the color industry; pesticide intermediates, namely chemical additives for use in the manufacturing of pesticide; chemical additives for oil additives, namely chemical additives for engine oil; catalysts for use in the manufacture of industrial chemicals; water purifying chemical.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Vulcanization accelerators; catalysts for use in the manufacture of rubbers and polymers; chemical additives for use in the manufacturing of pharmaceuticals, rubber, color pigments and pesticides; chemical additives for use in paper making; vulcanizing preparations, namely, chemical preparations for vulcanization; chemical additives for oils; water-purifying chemicals
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; sulfur; diphenylamine; vulcanization accelerators; antioxidants, namely additives for rubbers, plastics and lubricants intended to prolong the life of those substances by increasing their oxidative resistance; papermaking additives; color intermediates, namely, chemicals for use in the color industry; dyestuff assister, namely chemical agents for manufacturing dyestuffs, chemical products for brightening dyestuffs; plasticizers; dispersions of plastic, namely chemical additives for use in the manufacture of plastic; chemical additives to fungicides; chemical additives to insecticides; chemical additives for pesticides; synthetic resin adhesives for industrial purposes; cement for footwear; cement for pneumatic tires; cement for tires; mastic for tires.
57.
PREPARATION METHOD FOR ARYL-SUBSTITUTED P-PHENYLENEDIAMINE SUBSTANCES
A preparation method for an aryl-substituted p-phenylenediamine substance is provided. The structural formula of the aryl-substituted p-phenylenediamine substance is as follows, wherein R'' is phenyl or o-methylphenyl, and R' and R'' are identical or different. The preparation method comprises: raw material A and raw material B reacting under the action of a hydrogen acceptor and a catalyst to form an aryl-substituted p-phenylenediamine substance. The structural formula of raw material A is as follows; raw material B is cyclohexanone and/or o-methylcyclohexanone; and the hydrogen acceptor is a hydrogen acceptor that can be hydroconverted into raw material B. The preparation method uses inexpensive and readily available raw materials, and does not need a large amount of water in the post-treatment of the reaction. The reaction has mild conditions and does not corrode reaction devices. Therefore, the preparation method is environmentally friendly, has less pollution and can help gain more economic benefit.
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
58.
PREPARATION METHOD FOR ARYL SUBSTITUTED P-PHENYLENEDIAMINE SUBSTANCE
A preparation method for an aryl substituted p-phenylenediamine substance is provided. A structural formula of the aryl substituted p-phenylenediamine substance is shown as Formula (I'), where R" is phenyl or o-methylphenyl, and R' is the same as or different from R"; and the preparation method comprises that: a raw material A and a raw material B are reacted in the presence of a hydrogen acceptor and a catalyst to form the aryl substituted p-phenylenediamine substance, the raw material A having a structure shown as Formula (I), the raw material B being cyclohexanone and/or o-methylcyclohexanone and the hydrogen acceptor being a hydrogen acceptor capable of accepting hydrogen for conversion into the raw material B. According to the preparation method, the raw materials are low in cost and readily available, and use of a large amount of water for posttreatment of reaction is avoided. Moreover, a reaction condition is relatively mild, and corrosion to reaction equipment is avoided. Therefore, the preparation method is environment-friendly and less in pollution, and may achieve better economic benefits.
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; sulfur; diphenylamine; vulcanisation accelerator chemical preparations; accelerant, namely, chemical preparations for accelerating the process of vulcanization; antioxidants for use in manufacture; additives for use in the manufacture of paper; color intermediates, namely, chemicals for use in the color industry; dyestuff assister, namely chemical agents for manufacturing dyestuffs, chemical products for brightening dyestuffs; plasticizers; dispersions of plastics; chemical additives to fungicides; chemical additives to insecticides; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticide color additives, namely, chemical additives for use in the manufacture of color pigments; general use adhesives for industrial purposes; cement for footwear; cement for pneumatic tires; cement for tires; mastic for tires.
The present invention discloses a preparation method of 2-mercaptobenzothiazole, in which an aniline process is employed to react under the action of a catalyst to prepare 2-mercaptobenzothiazole, and the catalyst comprises imidazolium ionic liquid-supported sulfonic acids. The imidazolium ionic liquid-supported sulfonic acids are a type of acidic functionalized ionic liquids, and have the advantages of both solid acids and liquid acids. By employing the imidazolium ionic liquid-supported sulfonic acids as an active component of the catalyst, the present invention can significantly improve the conversion of raw materials and the yield of 2-mercaptobenzothiazole. At the same time, since 2-mercaptobenzothiazole has the characteristics of high catalytic activity, zero volatility, low corrosiveness, superior thermal stability, etc., the above preparation method also has comprehensive advantages of process simplicity, a low cost, a low tar yield, and high environmental friendliness.
The present invention discloses a preparation method of 2-mercaptobenzothiazole, in which an aniline process is employed to react under the action of a catalyst to prepare 2-mercaptobenzothiazole, and the catalyst comprises imidazolium ionic liquid-supported sulfonic acids. The imidazolium ionic liquid-supported sulfonic acids are a type of acidic functionalized ionic liquids, and have the advantages of both solid acids and liquid acids. By employing the imidazolium ionic liquid-supported sulfonic acids as an active component of the catalyst, the present invention can significantly improve the conversion of raw materials and the yield of 2-mercaptobenzothiazole. At the same time, since 2-mercaptobenzothiazole has the characteristics of high catalytic activity, zero volatility, low corrosiveness, superior thermal stability, etc., the above preparation method also has comprehensive advantages of process simplicity, a low cost, a low tar yield, and high environmental friendliness.
Method for pretreating the copper-based catalyst having the steps of dehydrating the copper-based catalyst at an elevated temperature, reducing the dehydrated copper-based catalyst with hydrogen, and passivating the activated copper-based catalyst to obtain a catalyst suitable for N-alkylation. The dehydration and reduction steps may be conducted simultaneously.
C07C 209/24 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds
B01J 23/80 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with zinc, cadmium or mercury
B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical additives for use in the manufacture of rubber; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; chemical additives for use in paper making; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticides; color intermediates, namely, chemical additives for use in the manufacturing of color pigments; chemicals for use in industry, namely, polymerized sulfur and sulfur
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticidecolor additives, namely, chemical additives for use in the manufacture of color pigments; polymerized sulfur; sulfur.
67.
SULFUR-CONTAINING PALLADIUM/CARBON CATALYST, METHOD FOR PREPARING THEREFOR, AND METHOD FOR PREPARING P-PHENYLENEDIAMINE ANTIOXIDANT
Provided are a sulfur-containing Palladium (Pd)/carbon catalyst, a preparation method therefor, and a method of using the catalyst to prepare p- Phenylenediamine (PPD) rubber antioxidant. The method for preparing the sulfur-containing Pd/carbon catalyst comprises: loading Pd on an active carbon to obtain a Pd/carbon catalyst; then, preparing a slurry by mixing the Pd/carbon catalyst with a solvent; subsequently, adding a sulfide to the slurry, stirring at a predetermined temperature; finally, filtering, and acquiring the sulfur-containing Pd/carbon catalyst. Application of the sulfur-containing Pd/carbon catalyst in the preparation of the PPD rubber antioxidant not only improves the yield of the PPD rubber antioxidant and inhibits a material from being reduced into a corresponding alcohol, but also improves selectivity.
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
A solid base catalyst having a carrier, an organic base, and an inorganic base. Both of the organic base and inorganic base are loaded on the carrier. The solid base catalyst is especially suitable for the synthesis of 4-Aminodiphenylamine (4-ADPA).
B01J 31/26 - Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups
C07C 209/38 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitroso groups
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
B01J 31/06 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
A sulfur-containing palladium-carbon catalyst prepared by loading palladium on an active carbon, mixing the palladium-carbon catalyst with a solvent to form a slurry, adding a sulfide to the slurry to treat the loaded palladium under a predetermined temperature, and removing liquid and drying to obtain the catalyst. The sulfur-containing palladium-carbon catalyst is suitable for making phenylene diamine rubber antioxidant with improved productivity and selectivity.
C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
A process tank for producing insoluble sulfur comprising a tank body having an upper half portion a lower half portion a first end and a second end along the longitudinal axis; an inner semi-cylinder body inside the upper half portion; and a first filter plate in the lower half portion. The space between the inner semi-cylinder body and the tank body is a sandwich structure and an inner cavity independent of the sandwich structure is provided inside the tank body. The first filter plate is wavelike in the cross section which separates from the inner cavity a first filter liquid cavity. A first liquid outlet communicating with the first filter liquid cavity is provided on the tank body.
A process for using a solid acid catalyst having a strong acid cation exchange resin having a cross-linking network structure and free aromatic sulfonic acids adsorbed in the network for synthesis of rubber antioxidant RD and other strong-acid catalyzed reactions.
B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
C07D 215/06 - Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms having only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to the ring nitrogen atom
C08G 61/12 - Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
C08K 5/3437 - Six-membered rings condensed with carbocyclic rings
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color intermediates; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticides.
(2) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color intermediates; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticides.
74.
Method for pretreating and using copper-based catalyst
Method for pretreating the copper-based catalyst having the steps of dehydrating the copper-based catalyst at an elevated temperature, reducing the dehydrated copper-based catalyst with hydrogen, and passivating the activated copper-based catalyst to obtain a catalyst suitable for N-alkylation. The dehydration and reduction steps may be conducted simultaneously.
C07C 209/00 - Preparation of compounds containing amino groups bound to a carbon skeleton
C07C 209/24 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds
B01J 23/80 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with zinc, cadmium or mercury
B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical additives for use in the manufacture of rubber; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; chemical additives for use in paper making; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticides; color intermediates, namely, chemical additives for use in the manufacturing of color pigments
76.
Spherical rubber chemicals and the method for preparing the same
The present invention provides spherical rubber chemicals and the method for preparing the same. The spherical rubber chemicals of the present invention include spherical antioxidants, spherical vulcanization agents, spherical processing aids, spherical reinforcing agents, or spherical adhesive agents. With the spherical rubber chemicals of the present invention, the shortcomings of powdery or semi-spherical rubber chemicals are overcome, including eliminating the dust pollution during granulation procedure and avoiding the raw material loss and the environmental pollution, while solving the quality problem of lower melting point of product caused by the presence of fine powder crystal. Furthermore, the resultant rubber chemicals has an improved smoothness of surface, which is helpful to improve the flowing and mixing behaviors of the rubber chemicals in mixing or open milling process with rubbers.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color intermediates; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticide.
Provided is a solid base catalyst containing porous carrier, and organic base and inorganic base loaded on the carrier. The solid catalyst is particularly suitable for the catalytic synthesis of 4-amino-diphenylamine (4-ADPA).
B01J 29/04 - Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
C07C 209/00 - Preparation of compounds containing amino groups bound to a carbon skeleton
C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
80.
SOLID ACID CATALYST AND METHOD FOR PREPARING AND USING THE SAME
A solid acid catalyst having a strong acid cation exchange resin having a cross-linking network structure and free aromatic sulfonic acids adsorbed in the network. The solid acid catalyst is prepared by treating a strong acid cation exchange resin with aromatic sulfonic acids in a solution. The catalyst is useful for synthesizing rubber antioxidant RD and other strong-acid catalyzed reactions.
A solid acid catalyst having a strong acid cation exchange resin having a cross-linking network structure and free aromatic sulfonic acids adsorbed in the network. The solid acid catalyst is prepared by treating a strong acid cation exchange resin with aromatic sulfonic acids in a solution. The catalyst is useful for synthesizing rubber antioxidant RD and other strong-acid catalyzed reactions.
The present invention provides spherical rubber chemicals and the method for preparing the same. The spherical rubber chemicals of the present invention include spherical antioxidants, spherical vulcanization agents, spherical processing aids, spherical reinforcing agents, or spherical adhesive agents. With the spherical rubber chemicals of the present invention, the shortcomings of powdery or semi-spherical rubber chemicals are overcome, including eliminating the dust pollution during granulation procedure and avoiding the raw material loss and the environmental pollution, while solving the quality problem of lower melting point of product caused by the presence of fine powder crystal. Furthermore, the resultant rubber chemicals has an improved smoothness of surface, which is helpful to improve the flowing and mixing behaviors of the rubber chemicals in mixing or open milling process with rubbers.
The present invention relates to a magnetic separation apparatus for continuous separating and recovering magnetic solid particles from a solid-liquid mixture. The apparatus includes at least one magnetic separation unit and each unit includes: an outer cylindrical vessel having a material inlet, a first outlet, and a second outlet; an inner cylindrical vessel, at least part of which extends along the axis inside the first cylindrical vessel without contacting with the inner surface of the outer cylindrical vessel; and a magnet, rendering the bottom of the inner cylindrical vessel magnetism during the first period and making the part of the surface lose its magnetism during a second period. When the solid-liquid mixture flows through the magnetic surface of the inner cylindrical vessel in the passage, the magnetic solids are absorbed and separated from the mixture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical additives for use in the manufacture of rubber; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; chemical additives for use in paper making; chemical additives for use in the manufacture of color pigments; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticides
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color additives; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticide.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color additives; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticide.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
Goods & Services
(1) Rubber additives; pharmaceutical intermediates, namely, chemical additives for use in the manufacturing of pharmaceuticals; papermaking additives; color additive, namely, chemical additives for use in the manufacture of color pigments; pesticide intermediates, namely, chemical additives for use in the manufacturing of pesticide
The present invention discloses a process for preparing 4-aminodiphenylamine using nitrobenzene and aniline as raw materials, comprising five procedures of condensation; hydrogenation; separation, recovery and recycle of complex alkali catalyst and separation, recovery and recycle of complex powdered catalyst optionally at least part of which is regenerated; separation, recovery and recycle of aniline and separation, recovery and recycle of solvent for hydrogenation; purification, wherein complex alkali catalyst is used as condensation catalyst, complex powdered catalyst is used as hydrogenation catalyst. This process may be carried out continuously. The present invention selects two catalysts of which the price is cheap, activity is high; reaction conditions are mild, side products are few; the process of preparation may be continuous, suitable for the production under industrial scale; the content of 4~aminodiphenylamine prepared may be more than 99% (by weight), the production yield under industrial scale may be more than 95%.
C07C 209/02 - Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of hydrogen atoms by amino groups
C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
C07C 209/38 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitroso groups
C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
