Method of making rubber

Details Method of making rubber Method of making rubber

1997-06-17

1999-05-11

Cain, Edward J.

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

Synthetic resins

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

C08F8/34

Patent

active

059028610

ABSTRACT:
Rubber is made by mixing the rubber ingredients at elevated temperature in rubber mixing equipment to obtain a mixed rubber compound. The mixed rubber compound is cryogenically ground into a powder by the application of a cryogenic material into the grinder. A further ingredient is added to the mixed rubber compound powder in a mixer while the further ingredient and mixed rubber compound are in a dry condition to obtain a resulting mixture which is later vulcanized. In one embodiment the further ingredient is fragile ingredients. In another embodiment the method is used for making non-solvent contact adhesive.

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patent: 4788231 (1988-11-01), Smigerski et al.
patent: 4789272 (1988-12-01), Matsubara et al.
patent: 4917834 (1990-04-01), Hadermann et al.
patent: 5195695 (1993-03-01), Ondush et al.

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