traditional rubber compositions google patents in liberia

ep2449020a1 - silicone rubber compositions

EP2449020A1 - Silicone rubber compositions

The present invention relates to silicone rubber compositions, methods for their preparation and uses thereof. In particular, the invention relates a heat curable silicone rubber composition comprising: 100 parts by weight of a defined HCR silicone elastomer; 0.5 to 30 parts by weight of hollow filler; and 0.1 to 3.0 parts by weight of a curing agent.

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us4382057a - silicone rubber compositions ...

US4382057A - Silicone rubber compositions ...

Such a composition is useful for forming molded parts in liquid injection molding machines, both of the plunger type and of the reciprocating screw type. US4382057A - Silicone rubber compositions for liquid injection molding machines - Chemical Patents

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process for devulcanizing rubber

Process for devulcanizing rubber

A process for devulcanizing EPDM rubber comprising the step of introducing sulfur-cured EPDM to an extruder, introducing from about 0.5 to about 20 wt % scavenging agent, based upon the total weight of the EPDM and scavenging agent, and mixing and masticating the EPDM at a temperature sufficient to at least partially devulcanize the sulfur-cured EPDM.

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cn104620937a - electric rubber tapping knife

CN104620937A - Electric rubber tapping knife

The electric rubber tapping knife is used for replacing traditional manual rubber tree bark tapping and traditional V-shaped-knife rubber tree bark tapping, rubber tapping is easily, conveniently, rapidly and efficiently carried out, the labor intensity is reduced, the requirement for the rubber tapping technology is reduced, the labor cost is saved accordingly, and the benefits of the natural rubber industry is accordingly improved.

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cn107434862a - a kind of fluorescent rubber composition

CN107434862A - A kind of fluorescent rubber composition

The invention discloses a kind of fluorescent rubber composition and its application, it is made up of the component of following parts by weight:The parts by weight of high-cis butadiene rubber 50~80, the parts by weight of solution polymerized butadiene styrene rubber 20~40, the artificial parts by weight of natural rubber 15~35, the parts by weight of gas-phase silica 40~55, the parts by weight of 2 long-acting noctilucent agent of SM7 6~10, the parts by weight of white carbon ...

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ep2238183a1

EP2238183A1

A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed. A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed.

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us8048951b2

US8048951B2

A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed. US8048951B2 - Natural rubber latex having reduced allergenicity and method of making - Chemical Patents

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us8324312b2

US8324312B2

A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed. US8324312B2 - Natural rubber latex having reduced allergenicity and method of making - Chemical Patents

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repair - what does vulcanizing solution in patch kits

repair - What does vulcanizing solution in patch kits

The cross-links are composed of sulfur atoms, and they act to strengthen the rubber. Vulcanizing solution does not actually vulcanize rubber. What it does is to break the bonds between sulfur atoms in these crosslinks of rubber that has already been vulcanized (for chemists out there, it's a reduction of disulfide bonds).

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chemical advanced search

Chemical Advanced Search

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chemical patents

Chemical Patents

Search and read the full text of patents from around the world with Chemical Patents, and find prior art in our index of non-patent literature.

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ep2449020a1 - silicone rubber compositions

EP2449020A1 - Silicone rubber compositions

The present invention relates to silicone rubber compositions, methods for their preparation and uses thereof. In particular, the invention relates a heat curable silicone rubber composition comprising: 100 parts by weight of a defined HCR silicone elastomer; 0.5 to 30 parts by weight of hollow filler; and 0.1 to 3.0 parts by weight of a curing agent.

Send Inquiry
us4382057a - silicone rubber compositions

US4382057A - Silicone rubber compositions

Such a composition is useful for forming molded parts in liquid injection molding machines, both of the plunger type and of the reciprocating screw type. US4382057A - Silicone rubber compositions for liquid injection molding machines - Chemical Patents

Send Inquiry
cn107434862a - a kind of fluorescent rubber composition

CN107434862A - A kind of fluorescent rubber composition

The invention discloses a kind of fluorescent rubber composition and its application, it is made up of the component of following parts by weight:The parts by weight of high-cis butadiene rubber 50~80, the parts by weight of solution polymerized butadiene styrene rubber 20~40, the artificial parts by weight of natural rubber 15~35, the parts by weight of gas-phase silica 40~55, the parts by weight of 2 long-acting noctilucent agent of SM7 6~10, the parts by weight of white carbon

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ep2238183a1 - natural rubber latex - patents.google.com

EP2238183A1 - Natural rubber latex - patents.google.com

A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed. A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed.

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us8324312b2 - natural rubber latex - patents.google.com

US8324312B2 - Natural rubber latex - patents.google.com

A rubber latex composition is disclosed having reduced allergenicity. Methods for producing a rubber latex composition having reduced allergenicity are also disclosed. US8324312B2 - Natural rubber latex having reduced allergenicity and method of making - Chemical Patents

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cn103333377a

CN103333377A

The water-swelling nitrile rubber is prepared by the following raw materials in parts by weight: 100 parts of nitrile rubber, 6.5 parts of active agent, 1 part of antioxidant, 40 parts of reinforcing filler, 4 parts of vulcanization accelerator, 0.5 to 2.5 parts of sublimed sulfur, 30 to 70 parts of water-absorbent resin, 10 parts of water-absorbing agent, and 5 to 20 parts of compatibilizer, wherein the compatibilizer is a maleic anhydride/nitrile rubber graft product.

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cn104620937a - electric rubber tapping knife

CN104620937A - Electric rubber tapping knife

The electric rubber tapping knife is used for replacing traditional manual rubber tree bark tapping and traditional V-shaped-knife rubber tree bark tapping, rubber tapping is easily, conveniently, rapidly and efficiently carried out, the labor intensity is reduced, the requirement for the rubber tapping technology is reduced, the labor cost is saved accordingly, and the benefits of the natural rubber industry is accordingly improved.

Send Inquiry