Patent · US Expired

Platinum/triene complexes useful for hydrosilylation catalysis

US4687870A · kind A · utility

9Cited by
4References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 20, 1985
Grant dateAug 18, 1987
Priority date—
Expiry dateDec 20, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31663
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Novel platinum/olefin complexes, useful for the hydrosilylation curing catalysis of hardenable organopolysiloxane compositions, are facilely prepared by reacting a platinum halide with at least one alkali or alkaline earth metal carbonate or bicarbonate in the presence of an aliphatic triene ligand having the general formula: ##STR1## wherein R.sub.1 is a linear or branched chain alkyl radical having from 1 to 6 carbon atoms, and R.sub.2 is R.sub.1 or a linear or branched chain alkenyl radical having from 2 to 16 carbon atoms and at least one site of ethylenic unsaturation, and said complex having a ratio, in gram-atoms of halogen to gram-atoms of platinum, ranging from virtually 0 to 4.

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