Conjugated diene rubber gel, rubber compositions containing...

Details Conjugated diene rubber gel, rubber compositions containing... Conjugated diene rubber gel, rubber compositions containing...

2006-08-22

2006-08-22

Lu, Caixia (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S340100

Reexamination Certificate

active

07094855

ABSTRACT:
A conjugated diene rubber gel comprising 80–99 weight % of conjugated diene monomer units and 20–1 weight % of aromatic vinyl monomer units and having a swelling index of 16 to 70 as measured in toluene. A rubber vulcanizate made from a rubber composition comprising this conjugated diene rubber gel and a rubber capable of being crosslinked with sulfur exhibits good abrasion resistance and low heat-build up without deterioration of mechanical properties, and thus, is suitable for tire materials. This conjugated diene rubber gel can be produced with high efficiency by emulsion-polymerization of a monomer mixture comprising 50–99.9 weight % of a conjugated diene monomer, 0–30 weight % of an aromatic vinyl monomer, 0–20 weight % of a crosslinking monomer.

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