Process for molding and vulcanizing rubber products

Details Process for molding and vulcanizing rubber products Process for molding and vulcanizing rubber products

1985-10-22

1987-12-01

Lieberman, Allan M.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

264315, 428447, 428451, 525105, 525106, 525476, C08L 700, C08L 900, C08L 1502, C08L 1900

Patent

active

047105410

ABSTRACT:
An improved process for molding and vulcanizing rubber products using a curing bladder, characterized in that the bladder is one which is made of a rubber compound containing (A) organic rubber and (B) polyorganosiloxane, the ratio of (A)/(B) being 95/5 to 5/95, or the bladder is one which is produced by surface treating (A) organic rubber with a silicone composition containing (A) organic rubber and (B) polyorganosiloxane, said polyorganosiloxane comprising at least two monovalent substituted or unsubstituted hydrocarbon groups having five or more carbon atoms and a C.dbd.C double bond connected to the silicon atom through at least one carbon atom, and having a degree of polymerization greater than 20.

REFERENCES:
patent: 3031423 (1962-04-01), Meier
patent: 4022848 (1977-05-01), Lukich
patent: 4104322 (1978-08-01), Snavely
patent: 4201698 (1980-05-01), Itoh et al.
patent: 4265801 (1981-05-01), Moody et al.
patent: 4341675 (1982-07-01), Nakamura
patent: 4359340 (1982-11-01), Comper et al.
patent: 4376184 (1983-03-01), Itoh et al.

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