Patent · US Expired

Heat-curable organopolysiloxane compositions

US4690967A · kind A · utility

21Cited by
6References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 21, 1984
Grant dateSep 1, 1987
Priority date
Expiry dateDec 21, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G77/70
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Improved heat-curable organopolysiloxane compositions, easily vulcanizable into silicone elastomers, are comprised of (A) a major amount of a diorganopolysiloxane gum, (B) a reinforcing filler therefor, (C) optionally, a diorganopolysiloxane oil, (D) an organic peroxide catalyst, and minor amounts of at least three of the following four additives: (E) an organohydrogenopolysiloxane, (F) an organofluorinated polymer, (G) an organosilonxane irgabcompound bearing at least one acroyloxyalkyl or methacroyloxyalkyl substituent covalently bonded to a silicon atom thereof, and (H) a boron compound.

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