Articles for dynamic load applications
AssigneeBayer Aktiengesellschaft
InventorsJudy Hannay, Harald Bender
Life of this patent
Estimating the term…
Abstract
A vulcanizate derived from a polymer composition comprising three components exhibits improved hot air aging properties and is useful, for example, for the manufacture of articles subject to dynamic loading, such as belting applications. The first component is a polymer having a main polymer chain derived from: (i) at least about 30% by weight of a first monomer which introduces at least one of a secondary carbon and a tertiary carbon to the backbone, and (ii) from 0 to about 70% by weight of at least one other monomer. Preferred are ethylene-alpha-olefin copolymers. The second component is a salt of a strong base and a weak acid, the salt comprising a metal selected from Group I of the Periodic Table of Elements. The third component is an antioxidant.
Claims11
An article subjected to dynamic loading which comprises:
- (i) a polymer having a main polymer chain derived from:
- (i) at least about 30% by weight of a first monomer which introduces at least one of a secondary carbon and a tertiary carbon to the main polymer chain, and (ii) from 0 to about 70% by weight of at least one other monomer.
- (ii) a salt of a strong base and a weak acid, the salt comprising a metal selected from Group I of the Periodic Table of Elements, and
- (iii) an antioxidant.
Dependencies are inferred from the claim text.