Patent · US Active

Process for producing polysiloxanes with nitrogen-containing groups

US8796198B2 · kind B2 · utility

16Cited by

17References

14Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Frauke Henning · Essen, DE
Andrea Lohse · Bottrop, DE
Ulrike Mahring · Essen, DE
Dirk Kuppert · Frankfurt, DE

Key dates

Filing date	Aug 13, 2012
Grant date	Aug 5, 2014
Priority date	—
Expiry date	Aug 22, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/16
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for producing amino-functional polysiloxanes by reacting the components A) identical or different terminally hydroxy-functional, linear or branched polysiloxanes, B) identical or different alkoxysilanes of the formulaR1xR23-xSiR3 (I)where R1 is identical or different alkyl radicals having 1 to 4 carbon atoms, R2 is identical or different alkoxy radicals having 1 to 4 carbon atoms, R3 is an organic radical having at least one nitrogen atom, x=0 to 2, and C) water, in the presence of D) one or more phosphorus-containing, Brønsted-acidic compounds, to the correspondingly obtainable polysiloxanes containing nitrogen-containing groups, and to the use thereof are provided.

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