Partitioning agent for rubber

Details Partitioning agent for rubber Partitioning agent for rubber

1997-07-25

2000-01-11

Niland, Patrick D.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

4273935, 428517, 524534, C08J 300, C08K 320, C08L 5100, B32B 2708

Patent

active

060137207

ABSTRACT:
This invention discloses an aqueous slurry for coating the surface of rubber slabs or pellets to reduce the tendency of the rubber slabs or pellets to stick together, said aqueous slurry being comprised of (1) from about 1 weight percent to about 15 weight percent of syndiotactic-1,2-polybutadiene having a melting point of no more than about 140.degree. C. and a particle size of no more than about 40 mesh; (2) from about 0.1 weight percent to about 5 weight percent of a suspending agent; (3) from about 0.05 weight percent to about 2 weight percent of a wetting agent; and (4) from about 78 weight percent to about 98 weight percent water. The present invention further reveals a coated rubber slab having resistance to sticking which is comprised of a rubber slab having a coating thereon, wherein said coating is comprised of syndiotactic-1,2-polybutadiene having a melting point of no more than about 140.degree. C. and a particle size of no more than about 40 mesh.

REFERENCES:
patent: 4274462 (1981-06-01), Ogawa et al.
patent: 4385164 (1983-05-01), Sinclair et al.
patent: 4394473 (1983-07-01), Winter et al.
patent: 4790365 (1988-12-01), Sandstrom et al.
patent: 4957970 (1990-09-01), Holsapple et al.
patent: 5021381 (1991-06-01), Burroway et al.

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