Patent · US Expired

Polysiloxane-polyoxyalkylene block copolymers and their use as additives for hair cosmetics

US5565194A · kind A · utility

17Cited by

9References

9Claims

0Family size

Assignee

Th. Goldschmidt. AG · DE

Inventors

Georg Burkhart · Essen, DE
Rolf-Dieter Langenhagen · Hattingen, DE
Andreas Weir · Essen, DE
Volker Zellmer · Bottrop, DE

Key dates

Filing date	Nov 15, 1995
Grant date	Oct 15, 1996
Priority date	—
Expiry date	Nov 15, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/46
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to polysiloxanes with 1) at least two polyether groups A and B, polyoxyalkylene group, with an average molecular weight of 600 to 5,500, consisting of 20 to 100% by weight of oxyethylene units and of 80 to 0% by weight of oxypropylene units and the polyoxyalkylene group B, with an average molecular weight of 700 to 5,000, consisting of 0 to <20% by weight of oxyethylene units and of 100 to 80% by weight of oxypropylene units, and with 2) hydrocarbon groups with 6 to 30 carbon atoms, linked to silicon. The invention further relates to the synthesis of these polysiloxanes and their use as additives for hair cosmetics, particularly as additives for hair shampoos to improve the handle and the combability of the hair.

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