Patent · US Expired

Polymerization of organopolysiloxanes

US4138543A · kind A · utility

11Cited by
4References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 25, 1977
Grant dateFeb 6, 1979
Priority date—
Expiry dateMay 25, 1997

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G77/08
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Organopolysiloxanes are polymerized in the presence of an alkaline catalyst and a complex oxygen, sulfur or nitrogen heterocyclic compound.

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