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US 4,537,928 AGranted
Rubber compositions containing aluminum phosphate
AssigneePhillips Petroleum Company
InventorsMarvin M. Johnson, Max P. McDaniel
Life of this patent
Estimating the term…
Abstract
Aluminum phosphate is used as a filler in vulcanizable rubber composition to provide, upon vulcanization, a reinforced rubber composition.
Claims22
A vulcanizable rubber composition comprising:
- (a) a vulcanizable natural rubber or vulcanizable synthetic rubber
- (b) a reinforcing amount of aluminum phosphate and,
- (c) additive effective for vulcanizing.
A process for providing vulcanized rubber compounds comprising (1) admixing a natural rubber or vulcanizable synthetic rubber with a reinforcing amount of aluminum phosphate and additive effective for vulcanizing and (2) vulcanizing the admixture.
Dependencies are inferred from the claim text.