Patent · US Expired

Process for preparing organopolysiloxane hydrosols

US5281657A · kind A · utility

11Cited by

4References

12Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Konrad Mautner · Burghausen, DE
Bernward Deubzer · Burghausen, DE
Helmut Oswaldbauer · Stubenberg, DE
Hilmar Sinner · Burghausen, DE

Key dates

Filing date	Aug 16, 1993
Grant date	Jan 25, 1994
Priority date	—
Expiry date	Aug 16, 2013

Classification

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

Abstract

A process for preparing organopolysiloxane hydrosols by mixing an organosilicon compound with water, which comprises mixing a silane of the formula EQU R.sub.a Si(OR.sup.1).sub.4-a (I) where a is 0, 1, 2 or 3, R can be the same or different and is a hydrogen atom or a monovalent organic radical, R.sup.1 can be the same or different and is a monovalent organic radical, and/or a partial hydrolysis product thereof and, optionally, an organodisiloxane of the formula EQU R.sup.2.sub.3 Si-O-SiR.sup.2.sub.3 (II) where R.sup.2 can be the same or different and is the same as R, with water in the presence of an emulsifier at a temperature below 15.degree. C.

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