Patent · US Active

Process for preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers

US7645848B2 · kind B2 · utility

57Cited by

5References

14Claims

0Family size

Assignee

GOLDSCHMIDT HOLDING GMBH · DE

Inventors

Wilfried Knott · Essen, DE
Ruediger Landers · Essen, DE
Dagmar Windbiel · Essen, DE

Key dates

Filing date	Aug 21, 2006
Grant date	Jan 12, 2010
Priority date	—
Expiry date	Aug 18, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2101/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention therefore relates to a process for preparation of SiOC-linked, linear (AB)d polydimethylsiloxane-polyoxyalkylene block copolymers of the general formula [(R2SiO)x(CnH2nO)y]d, in which

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