Patent · US Expired

Preparation for shrinkproofing wool

US4248590A · kind A · utility

10Cited by

9References

7Claims

0Family size

Assignee

Th. Goldschmidt. AG · DE

Inventors

Gotz Koerner · Essen, DE
Gunter Schmidt · Houghton, US
Friedhelm Nickel · Essen, DE

Key dates

Filing date	Mar 13, 1979
Grant date	Feb 3, 1981
Priority date	—
Expiry date	Mar 13, 1999

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/01
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A preparation for shrinkproofing wool composed of 1 to 50 weight percent of organopolysiloxanes composed of 90 to 99.8 mole % of units having the formula R.sub.n.sup.1 SiO.sub.(4-n)/2, and 0.2 to 10 mole % of units having the formula R.sup.2 SiO.sub.3/2 with the remainder being water and other conventional additives. These preparations provide emulsions which are stable over long periods of time, do not precipitate even in the presence of moisture, provide durable shrinkproof properties to wool, and have no adverse effect on the "hand" of the wool.

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