Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Reexamination Certificate
2011-06-21
2011-06-21
Rabago, Roberto (Department: 1762)
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
C252S182130, C252S182140, C252S182230, C252S182280, C252S182320, C252S183130, C525S330700, C525S334100, C525S343000, C525S346000, C525S347000, C525S349000, C525S350000, C525S351000, C525S366000, C525S374000, C525S375000
Reexamination Certificate
active
07964110
ABSTRACT:
The instant invention is a cure system for halogenated elastomer compositions, a curable halogenated elastomer composition, and a method for curing a halogenated elastomer composition. The cure system for halogenated elastomer compositions includes a polymercapto crosslinking agent, an inorganic base, and a hydrated salt selected from the group consisting of lithium citrate, trilithium citrate pentahydrate, trilithium citrate tetrahydrate, and monolithium dihydrogen citrate monohydrate. The curable halogenated elastomer composition includes a chlorinated elastomer, and a cure system including a polymercapto crosslinking agent, an inorganic base, and a hydrated salt selected from the group consisting of lithium citrate, trilithium citrate pentahydrate, trilithium citrate tetrahydrate, and monolithium dihydrogen citrate monohydrate. Furthermore, the method for curing a halogenated elastomer composition includes the following steps: (1) providing a chlorinated elastomer composition; (2) providing a cure system composition including a polymercapto crosslinking agent, an inorganic base, and a hydrated salt selected from the group consisting of lithium citrate, trilithium citrate pentahydrate, trilithium citrate tetrahydrate, and monolithium dihydrogen citrate monohydrate; (3) uniformly blending the cure system into the chlorinated elastomer composition; (4) thereby forming a curable chlorinated elastomer composition; (5) subjecting the curable chlorinated elastomer composition to heat or heat and pressure; and (6) thereby curing the curable chlorinated elastomer composition.
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International Search Report PCT/US2007/076396, Jan. 2008.
Laakso, Jr. Raymond L.
Marchand Gary R.
Dow Global Technologies LLC
Rabago Roberto
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