Patent · US Expired

Rapidly hardening organopolysiloxane compositions comprising polyacyloxysilane cross-linking agents

US4508888A · kind A · utility

11Cited by

0References

16Claims

0Family size

Assignee

Rhone-Poulenc Specialities Chimiques · FR

Inventors

Michel Letoffe · Bergerac, FR
Roger Favre · Val-de-Reuil, FR
Patrice Perrin · Val-de-Reuil, FR

Key dates

Filing date	Jan 25, 1984
Grant date	Apr 2, 1985
Priority date	—
Expiry date	Jan 25, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S528/901
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Organopolysiloxane compositions which rapidly harden to the elastomeric state, even at ambient temperatures, are comprised of (i) a polyhydroxylated polysiloxane, (ii) a polyacyloxysilane cross-linking agent therefor, and (iii) a hardening accelerator comprising water and an alkali or alkaline earth metal phosphate and/or polyphosphate. The subject compositions are useful, inter alia, for providing elastomeric seals.

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