Abstract: The present invention discloses a rubber composition, production method thereof and a rubber product using the same. The rubber composition includes a rubber matrix and essential components. Based on 100 parts by weight of the rubber matrix, the rubber matrix includes a branched polyethylene with a content represented as A, in which 0<A?100, and an EPM and an EPDM with a total content represented as B, in which 0?B<100; and the essential components include 1.5 to 10 parts of a crosslinking agent and 40 to 200 parts of a reinforcing filler. The reinforcing filler includes carbon black and silica and can also include any one or more of calcium carbonate, talcum powder, calcined clay, magnesium silicate, and magnesium carbonate, wherein the content of the carbon black is 5 to 100 parts, and the content of the silica is 5 to 60 parts. The rubber composition is used for producing rubber product with better yield and tear strength and service performance.

Abstract: The present invention discloses a photo-crosslinked rubber composition and application thereof. The rubber composition comprises a rubber matrix and an initiator. Based on 100 parts by weight of the rubber matrix, the rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100, and an ethylene-propylene rubber with a content represented as B, in which 0?B<100; and the initiator accounts for 0.1-10 parts, and the initiator includes at least one of a cationic photoinitiator and a free radical photoinitiator. In the rubber composition, the ethylene-propylene rubber is partially or completely replaced by the branched polyethylene. The rubber composition can be used for rubber product crosslinked by ultraviolet light, including wire, cable, film, glove, condom, and medical catheter, which achieves excellent elasticity, electrical insulation property, aging resistance and ozone resistance, and also has good mechanical strength.

Abstract: The present invention discloses a rubber composition, a processing method thereof, and an aging resistant rubber product using the rubber composition. The rubber composition comprises a rubber matrix and essential components, wherein, based on 100 parts by weight of the rubber matrix, the rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100 parts, and an EPM and an EPDM with a content represented as B, in which 0?B<100 parts; and the essential components comprise 1.5-10 parts of a crosslinking agent, 30-200 parts of a reinforcing filler, and 5-250 parts of a plasticizer. The rubber composition provided by present invention has good processability and can be used for producing rubber products with high aging resistance and compression set resistance.

Abstract: Disclosed is a rubber composition and a tire using the same. The rubber composition comprises a rubber matrix and a compounding component. In parts by weight, every 100 parts by weight of said rubber matrix comprises 5-95 parts by weight of a branched polyethylene, 5-90 parts by weight of a highly unsaturated diene elastomer and 0-30 parts by weight of a low unsaturated diene elastomer; and said compounding component comprises a vulcanization system and a filler. The rubber composition has good aging resistance and mechanical properties, and can be applied for products such as tires, rubber hoses, rubber tapes and so on, in which the traditional, easily aging diene rubber was commonly used.

Abstract: Disclosed are an aging-resistant rubber composition and a processing method therefor and use thereof. The rubber composition includes a rubber matrix and compounding components, and in parts by weight, every 100 parts of said rubber matrix comprise 50-99 parts of a halogenated butyl rubber, 0-50 parts of a highly branched polyethylene P1, and 0-50 parts of P2 obtained by the polarization modification of said highly branched polyethylene P1, and the sum of P1 and P2 in parts by weight is 1-50 parts; and said compounding components comprise a vulcanization system.

Abstract: Provided are a highly insulated rubber composition, a processing method therefor, and an application thereof. The rubber composition comprises a rubber matrix and compounding components. In parts by weight, every 100 parts of said rubber matrix comprise: 50-95 parts of a chlorinated (and/or chlorosulfonated) polyethylene rubber, 5-50 parts of a highly branched polyethylene, and 0-30 parts of an ethylene propylene rubber; and, the branching degree of the highly branched polyethylene is not lower than 50 branches/1000 carbon atoms. The compounding components contain a vulcanization system. The rubber composition improves the electrical insulation performance of the chlorinated (and/or chlorosulfonated) polyethylene rubber, so that the rubber composition is more suitable for the applications with high requirements for electrical insulation.

Abstract: Disclosed by the present invention are an anti-aging polar rubber composition, a processing method therefor and an application thereof. The rubber composition comprises: a rubber matrix and a compounding component. In parts by weight, every 100 parts of the rubber matrix comprise 0-99 parts of highly branched polyethylene P1, 0-100 parts of P2, which is a reactant of the highly branched polyethylene P1 and a polar monomer, 0-50 parts of P3, which is a reactant of a copolymer of ethylene and ?-olefin and a polar monomer, and 0-50 parts of P4, which is a reactant of a binary, ternary or higher multipolymer of mono-olefin and diene monomer and a polar monomer, and the sum of the contents of P1 and P2 is 50-100 parts; and P1 is an ethylene homopolymer with a branched structure, and has a branching degree of not less than 50 branches/1000 carbons; and the compounding component comprises a vulcanization system.

Abstract: The present invention discloses a rubber composition, a processing method thereof, and also a brake fluid-resistant product using the rubber composition and a production method thereof. The rubber composition comprises, in parts by weight, 100 parts of a rubber matrix; 1.5-8 parts of a crosslinking agent 40-140 parts of a reinforcing filler; and 0-40 parts of a plasticizer, wherein the rubber matrix comprises, based on 100 parts by weight of the rubber matrix, a branched polyethylene with a content represented as A, in which 0<A?100 parts; an EPM with a content represented as B, in which 0?B<100 parts; and an EPDM with a content represented as C, in which 0?C<100 parts. The rubber composition is useful in the production of brake fluid-resistant brake rubber hose and brake rubber diaphragm.

Abstract: The present invention discloses a rubber composition, production method thereof and a rubber product using the same. The rubber composition includes a rubber matrix and essential components. Based on 100 parts by weight of the rubber matrix, the rubber matrix includes a branched polyethylene with a content represented as A, in which 0<A?100, and an EPM and an EPDM with a total content represented as B, in which 0?B<100; and the essential components include 1.5 to 10 parts of a crosslinking agent and 40 to 200 parts of a reinforcing filler. The reinforcing filler includes carbon black and silica and can also include any one or more of calcium carbonate, talcum powder, calcined clay, magnesium silicate, and magnesium carbonate, wherein the content of the carbon black is 5 to 100 parts, and the content of the silica is 5 to 60 parts. The rubber composition is used for producing rubber product with better yield and tear strength and service performance.

Abstract: The present invention discloses a rubber composition, a processing method for obtaining the rubber composition, a rubber hose using the rubber composition and a production method thereof. The rubber composition comprises, in parts by weight, 100 parts of a rubber matrix, 1.5-8 parts of a crosslinking agent, 50-200 parts of a reinforcing filler, 10-100 parts of a plasticizer, and also 0.2-8 parts of an auxiliary crosslinking agent, 2-15 parts of a metal oxide, 1-3 parts of a stabilizer and 1-5 parts of polyethylene glycol, wherein, with respect to 100 parts by weight of total amount of said rubber matrix, said rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100 parts, and both an EPM rubber and an EPDM rubber with a total content represented as B, in which 0?B<100 parts. The beneficial effect is that a rubber hose with good mechanical strength can be prepared from the rubber composition provided in the present invention.

Abstract: The present invention discloses a rubber composition, a processing method thereof, and a foamed rubber product produced by the rubber composition and a production method thereof. The rubber composition comprises a rubber matrix and essential components, wherein, based on 100 parts by weight of the rubber matrix, the rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100 parts; and an EPM and an EPDM with a total content represented as B, in which 0?B<100 parts, and the essential components comprises 0.5-10 parts of a crosslinking agent, and 1.5-25 parts of a foaming agent. The rubber composition is useful in the production of sponge seal strip, foamed rubber compound of high expansion ratio, shock absorbing foamed rubber sheet, light-colored high-strength foamed sheet, foam-solid composite seal strip, and solid cycle tires internally filled with foamed elastomer.

Abstract: The present invention discloses a rubber composition comprising, in parts by weight, 100 parts of a rubber matrix, 1.5 to 9 parts of a crosslinking agent, 0.2 to 9 parts of an assistant crosslinking agent, 40 to 170 parts of a reinforcing filler, 6 to 93 parts of a plasticizer and 3 to 25 parts of a metal oxide. The rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100 parts, an EPM with a content represented as B, in which 0?B<100 parts, and an EPDM with a content represented as C, in which 0?C<100 parts. The present invention provides a rubber composition which is excellent in heat resistance and mechanical properties and is useful in a cover rubber of a conveyor belt.

Abstract: The present invention discloses a rubber composition, and use of the rubber composition. The rubber composition comprises, in parts by weight, 100 parts of a rubber matrix, 1.5-9 parts of a crosslinking agent, and 5-60 parts of a staple fiber, and further comprises 0.3-15 parts of an auxiliary crosslinking agent, 3-25 parts of a metal oxide, 3-90 parts of a plasticizer, 30-100 parts of a reinforcing filler, 1-3 parts of a stabilizer, and 3-20 parts of a metal salt of an unsaturated carboxylic acid. The rubber matrix comprises, based on 100 parts by weight of the rubber matrix, a branched polyethylene with a content represented as A, in which 0<A?100 parts, an EPM and an EPDM with a content represented as B, in which 0?B<100 parts.

Abstract: The present invention discloses a rubber composition, a processing method thereof, and an aging resistant rubber product using the rubber composition. The rubber composition comprises a rubber matrix and essential components, wherein, based on 100 parts by weight of the rubber matrix, the rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100 parts, and an EPM and an EPDM with a content represented as B, in which 0<B?100 parts; and the essential components comprise 1.5-10 parts of a crosslinking agent, 30-200 parts of a reinforcing filler, and 5-250 parts of a plasticizer. The rubber composition provided by present invention has good processability and can be used for producing rubber products with high aging resistance and compression set resistance.

Abstract: The present invention discloses a rubber composition, a processing method thereof, and rubber product reinforced with silica using the same. The rubber composition comprises a rubber matrix and essential components, wherein, based on 100 parts by weight of the rubber matrix, the rubber matrix comprises, a branched polyethylene with a content represented as A, in which 0<A?100, and an EPM and an EPDM with a total content represented as B, in which 0?B<100; and the essential components comprise 1-10 parts of a crosslinking agent and 15-80 parts of silica. The rubber composition can be used for producing high-voltage insulating sheath rubber, high-temperature resistant conveyor belt, waterproof coil, rubber particles for plastic track surface layer, rubber plug, rubber roller, inner tube, tire tread, tire sidewall, and inner rubber layer of air-conditioner hose.

Abstract: The present invention discloses a photo-crosslinked rubber composition and application thereof. The rubber composition comprises a rubber matrix and an initiator. Based on 100 parts by weight of the rubber matrix, the rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100, and an ethylene-propylene rubber with a content represented as B, in which 0?B<100; and the initiator accounts for 0.1-10 parts, and the initiator includes at least one of a cationic photoinitiator and a free radical photoinitiator. In the rubber composition, the ethylene-propylene rubber is partially or completely replaced by the branched polyethylene. The rubber composition can be used for rubber product crosslinked by ultraviolet light, including wire, cable, film, glove, condom, and medical catheter, which achieves excellent elasticity, electrical insulation property, aging resistance and ozone resistance, and also has good mechanical strength.

Abstract: The present invention discloses a rubber composition, a processing method for obtaining the rubber composition, and application of the composition in processing of flame-retardant products. The rubber composition includes a rubber matrix and essential components. The rubber matrix includes a branched polyethylene with a content represented as A, in which 0<A?100, and an EPM and an EPDM with a total content represented as B, in which 0?B<100. The essential components include 1.5 to 10 parts of a crosslinking agent and 40 to 300 parts of a flame-retardant agent. The rubber composition can be applied to production of flame-retardant products, such as flame-retardant cable, flame-retardant cool air hose for automobile, flame-retardant sealing strip, high-temperature-resistant flame-retardant conveyor belt, and flame-retardant waterproof coil. The products have good flame-retardant effects and mechanical properties.

Abstract: The invention discloses a rubber composition and a method for processing the rubber composition, and a sealing element using the rubber composition and a production method thereof. The rubber composition comprises, in parts by weight, 100 parts of a rubber matrix, 2-20 parts of a cross-linking system, 60-300 parts of a reinforcing filler, 20-170 parts of a plasticizer and 3-25 parts of a metal oxide, wherein, the rubber matrix comprises a branched polyethylene with a content represented as A, in which 0<A?100 parts, and both an EPM rubber and an EPDM rubber with a total content represented as B, in which 0?B<100 parts. The invention provides a sealing element with good compression set resistance.

Abstract: The present invention discloses a rubber composition. The rubber composition includes a rubber matrix and a crosslinking system. The rubber matrix includes, in parts by weight, the following components: a branched polyethylene with a content represented as A, in which 0<A?100, an EPM with a content represented as B, in which 0?B<100, and an EPDM with a content represented as C, in which 0?C<100. Based on 100 parts by weight of said rubber matrix, the content of the crosslinking system is represented as D: 1?D?15 parts. The crosslinking system includes at least one of a crosslinking agent and an auxiliary crosslinking agent. The branched polyethylene has a degree of branching of not less than 50 branches/1000 carbon atoms, a weight average molecular weight of not less than 50,000, and a Mooney viscosity ML(1+4) at 125° C. of not less than 2.