Patent · US Expired

Unsaturated accelerators for hydrosilation

US5756795A · kind A · utility

9Cited by
8References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 30, 1996
Grant dateMay 26, 1998
Priority date—
Expiry dateDec 30, 2016

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07F7/14
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A hydrosilation process where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an accelerator selected from the group consisting of 1,7-octadiyne, 1,5-hexadiyne, cyclooctadiene, 5-vinyl-2-norbornene, 4-vinyl-1-cyclohexene, 2,5-bis(t-butylperoxy)-2,5-dimethylhexane, furan, 4H-Pyran-4-one, cis-4,7-dihydro-1,3-dioxepin, maleic anhydride, and dimethyldiallylmalonate. The accelerators are especially useful for facilitating the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene.

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