Patent · US Expired

Treatment of polyamide fibres

US5028236A · kind A · utility

9Cited by

5References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wilfried Kortmann · Hagen, DE
Wolf-Dieter Schroer · Leverkusen, DE
Karl-Heinz Passon · Leverkusen, DE

Key dates

Filing date	Aug 4, 1989
Grant date	Jul 2, 1991
Priority date	—
Expiry date	Aug 4, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/924
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Ketene dimers of the general formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another denote an alkyl or alkenyl radical each of which has at least 8 C atoms, a cycloalkyl radical having at least 6 C atoms or an aryl or aralkyl radical are used for the treatment of wool and synthetic polyamide fibres.

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