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US 5,684,077 AGranted
Composition for mold curing elements
AssigneeExxon Chemical Patents Inc.
InventorsDonald Sheley Tracey, Irwin Jerome Gardner, Bernard Jean Costemalle
Life of this patent
Estimating the term…
Abstract
A composition suitable for use in producing mold curing elements is provided. The composition comprises a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene; a filler such as carbon black, a process oil, and a curing agent. A curing element comprising the composition is also provided.
Claims17
A hollow, fluid retaining curing element used for pressing a vulcanizable material against a mold during vulcanization of said material, said curing element comprising a vulcanized mixture of:
- 1. 80 to 100 phr of a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and para-alkylstyrene having about 0.8 weight percent halogen content;
- 2. 30 to about 120 phr of a filler;
- 3. 1 to about 15 phr of a processing oil;
- and
- 4 to about 3 1 phr of a curing agent.
2 more elements
Dependencies are inferred from the claim text.