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 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. 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.

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.