C08L23/28

Anti-aging polar rubber composition, processing method therefor and application thereof

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 α-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. Provided by the present invention is a rubber composition with both aging resistance and certain polarity, which expand the usage range of highly branched polyethylene as an elastomer, and is more suitable for applications with requirements for polarity-related performance such as adhesion performance and oil resistance.

Anti-aging polar rubber composition, processing method therefor and application thereof

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 α-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. Provided by the present invention is a rubber composition with both aging resistance and certain polarity, which expand the usage range of highly branched polyethylene as an elastomer, and is more suitable for applications with requirements for polarity-related performance such as adhesion performance and oil resistance.

Anti-aging polar rubber composition, processing method therefor and application thereof

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 α-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. Provided by the present invention is a rubber composition with both aging resistance and certain polarity, which expand the usage range of highly branched polyethylene as an elastomer, and is more suitable for applications with requirements for polarity-related performance such as adhesion performance and oil resistance.

CHLORINATED POLYOLEFIN RESIN AND METHOD FOR PRODUCING THE SAME

A chlorinated polyolefin resin may have excellent adhesion and can be produced without using a chlorinated solvent and without producing by-products through a series of production processes. Such a chlorinated polyolefin resin may be a chlorinated polyolefin resin having an amount of chlorine of 1% by weight to 45% by weight obtained by chlorinating a raw material composition in the absence of an organic solvent, wherein the raw material composition includes at least a polyolefin A or an acid-modified product thereof which has fluidity at 40° C. or less and a polyolefin B or an acid-modified product thereof which has a melting point of more than 40° C. and 150° C. or less.

CHLORINATED POLYOLEFIN RESIN AND METHOD FOR PRODUCING THE SAME

A chlorinated polyolefin resin may have excellent adhesion and can be produced without using a chlorinated solvent and without producing by-products through a series of production processes. Such a chlorinated polyolefin resin may be a chlorinated polyolefin resin having an amount of chlorine of 1% by weight to 45% by weight obtained by chlorinating a raw material composition in the absence of an organic solvent, wherein the raw material composition includes at least a polyolefin A or an acid-modified product thereof which has fluidity at 40° C. or less and a polyolefin B or an acid-modified product thereof which has a melting point of more than 40° C. and 150° C. or less.

CHLORINATED POLYOLEFIN RESIN AND METHOD FOR PRODUCING THE SAME

A chlorinated polyolefin resin may have excellent adhesion and can be produced without using a chlorinated solvent and without producing by-products through a series of production processes. Such a chlorinated polyolefin resin may be a chlorinated polyolefin resin having an amount of chlorine of 1% by weight to 45% by weight obtained by chlorinating a raw material composition in the absence of an organic solvent, wherein the raw material composition includes at least a polyolefin A or an acid-modified product thereof which has fluidity at 40° C. or less and a polyolefin B or an acid-modified product thereof which has a melting point of more than 40° C. and 150° C. or less.

Composition, method and use
11118058 · 2021-09-14 ·

The present invention is directed to aqueous compositions with wax and graphene. These compositions offer surprising benefits in reducing bicycle or motorbike chain lengthening, particularly in off road environments with high dirt and water levels such as during mountain biking or off-road biking. The invention is further directed to a method of preparing such compositions and to the use of such compositions on bicycle or motorbike chains.

Composition, method and use
11118058 · 2021-09-14 ·

The present invention is directed to aqueous compositions with wax and graphene. These compositions offer surprising benefits in reducing bicycle or motorbike chain lengthening, particularly in off road environments with high dirt and water levels such as during mountain biking or off-road biking. The invention is further directed to a method of preparing such compositions and to the use of such compositions on bicycle or motorbike chains.

Laminate of thermoplastic resin film and rubber, inner liner material, and pneumatic tire
11077710 · 2021-08-03 · ·

A laminate of a thermoplastic resin or thermoplastic elastomer composition film and a rubber composition layer, which can be used as an inner liner for a pneumatic tire, with improved adhesive strength at the interface of the thermoplastic resin or thermoplastic elastomer composition film and the rubber composition layer. A laminate comprising a thermoplastic resin or thermoplastic elastomer composition film and a rubber composition layer, the rubber composition containing a rubber component, a condensate of a phenol compound and formaldehyde, and methylene donor and a vulcanizing agent, wherein 2.5-40% by mass of the rubber component is halogenated isomonoolefin-p-alkyl styrene copolymer, the content of the condensate is 0.5-20 parts by mass per 100 parts by mass of the rubber component, and the content of the methylene donor is 0.25-200 parts by mass per 100 parts by mass of the rubber component.

Laminate of thermoplastic resin film and rubber, inner liner material, and pneumatic tire
11077710 · 2021-08-03 · ·

A laminate of a thermoplastic resin or thermoplastic elastomer composition film and a rubber composition layer, which can be used as an inner liner for a pneumatic tire, with improved adhesive strength at the interface of the thermoplastic resin or thermoplastic elastomer composition film and the rubber composition layer. A laminate comprising a thermoplastic resin or thermoplastic elastomer composition film and a rubber composition layer, the rubber composition containing a rubber component, a condensate of a phenol compound and formaldehyde, and methylene donor and a vulcanizing agent, wherein 2.5-40% by mass of the rubber component is halogenated isomonoolefin-p-alkyl styrene copolymer, the content of the condensate is 0.5-20 parts by mass per 100 parts by mass of the rubber component, and the content of the methylene donor is 0.25-200 parts by mass per 100 parts by mass of the rubber component.