Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-03-10
2009-11-03
Rábago, Roberto (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S330700, C525S331400, C525S334100, C525S350000, C525S351000, C525S375000, C525S376000, C548S125000, C548S136000, C548S142000
Reexamination Certificate
active
07612149
ABSTRACT:
The instant invention is an improved cure system composition and a method for curing chlorinated elastomer compositions. The cure system composition includes a polymercapto crosslinking agent, an inorganic base, and a quaternary ammonium salt. The quaternary ammonium salt has a formula selected from the group consisting ofwherein R1is an alkyl or aryl group containing between 4 and 12 carbon atoms; wherein R2and R3are independently alkyl or aryl groups containing between 1 and 8 carbon atoms; wherein the total number of carbon atoms on R2and R3are between 3 and 9; wherein R4and R5are methyl groups, and R6is an alkyl group containing between 2 and 8 carbon atoms; and wherein X is an anion. The method for curing a chlorinated elastomer composition according to instant invention includes the following steps: (1) providing a chlorinated elastomer composition; (2) providing a cure system composition as described above; (3) contacting said chlorinated elastomer composition with said cure system composition; and (4) thereby curing said chlorinated elastomer composition.
REFERENCES:
patent: 4128510 (1978-12-01), Richwine
patent: 4234705 (1980-11-01), Matoba
patent: 4342851 (1982-08-01), Suzui et al.
patent: 4357446 (1982-11-01), Matoba
patent: 4745147 (1988-05-01), Honsberg
patent: 5686537 (1997-11-01), Class
patent: 332729 (1989-09-01), None
Laakso, Jr. Raymond L.
Marchand Gary R.
Dow Global Technologies Inc.
Rábago Roberto
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