Patent · US Expired

EPDM elastomeric compositions

US4645793A · kind A · utility

29Cited by
8References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 19, 1985
Grant dateFeb 24, 1987
Priority date
Expiry dateDec 19, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L21/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Elastomeric compositions containing EPDM elastomers are provided, the vulcanizates of which show substantially improved adhesion properties with good dynamic ozone resistance, superior aged fatigue life and high resilience. The EPDM used is of high molecular weight and has a non-conjugated diene content of at least 6 weight percent preferably at least 7.5%. The composition also contains highly unsaturated elastomers, such as natural rubber and polybutadiene, as the additional elastomeric components.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.