Patent · US Active

Emulsions of high viscosity silicone polyethers

US8536296B2 · kind B2 · utility

2Cited by

9References

6Claims

0Family size

Assignee

Dow Corning Corporation · US

Inventors

Deborah Meyers · Midland, US
Jeffrey Rastello · Saginaw, US
Simon Toth · Midland, US
Bethany K. Johnson · Midland, US
Isabelle Van Reeth · Shanghai, CN

Key dates

Filing date	Dec 21, 2009
Grant date	Sep 17, 2013
Priority date	—
Expiry date	Aug 20, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2383/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process is disclosed for making an aqueous emulsion of a silicone polyether having a viscosity greater than 10 kPa-s at 25 QC by combining; an SiH terminated silicone polyether copolymer having an HLB of less than 7, an organopolysiloxane having terminal unsaturated groups, a hydrosilylation catalyst, and an emulsifier to form an oil phase, and then admixing water to the oil phase to form an emulsion.

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