Patent · US Active

Mixtures of cyclic branched siloxanes of the D/T type and conversion products thereof

US10399998B2 · kind B2 · utility

20Cited by

9References

20Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Wilfried Knott · Essen, DE
Horst Dudzik · Essen, DE

Key dates

Filing date	Mar 16, 2018
Grant date	Sep 3, 2019
Priority date	—
Expiry date	Mar 16, 2038

Classification

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

Abstract

Mixtures of cyclic branched siloxanes having exclusively D and T units, with the proviso that the cumulative proportion of the D and T units having Si-alkoxy and/or SiOH groups that are present in the siloxane matrix, determinable by 29Si NMR spectroscopy, is greater than 2 and less than 10 mole percent, are described, as are branched organomodified siloxanes obtainable therefrom.

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