Patent · US Expired

Vulcanizable EPDM containing rubber composition

US6521713B2 · kind B2 · utility

3Cited by

5References

2Claims

0Family size

Assignees

Degussa AG · DE
Mitsui Petrochemical Industries, Ltd. · JP

Inventors

Siegfried Wolff · Bornheim, DE
Rainer Panenka · Zeven, DE
Marinus Haddeman · Bensberg, DE
Hidenari Nakahama · Sodegaura, JP

Key dates

Filing date	Apr 7, 1995
Grant date	Feb 18, 2003
Priority date	—
Expiry date	Apr 7, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2666/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A rubber composition is disclosed containing an ethylene-propylene-nonconjugated diene copolymer rubber (or a blend of an ethylene-propylene-nonconjugated diene copolymer rubber and a diene rubber), a specific alkoxysilane compound, and amorphous silica powder having a specific surface area of 50 to 100 m2/g (BET adsorption). The vulcanized rubber is prepared by vulcanizing such a rubber composition. The rubber composition is excellent in dynamic characteristics and also in mechanical characteristics, dynamic fatigue resistance and thermal aging resistance. It also can provide a vulcanized rubber having the above-mentioned effects.

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