Patent · US Expired

Spinning finishes for synthetic filament fibers

US6204353A · kind A · utility

8Cited by

5References

18Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Ulrich Eicken · Korschenbroich, DE
Raymond Mathis · Goldkronach, DE
Norbert Bialas · Dormagen, DE

Key dates

Filing date	Sep 7, 1993
Grant date	Mar 20, 2001
Priority date	—
Expiry date	Sep 7, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2933
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to spinning finishes containing a lubricant of improved biodegradability, the lubricant consisting of block copolyesters. The block copolyesters are produced from hydrophilic polyethylene glycols and hydrophobic diols selected from the group of polypropylene glycols, polytetrahydrofurans, polycaprolactone diols, hydrogenation products of ricinoleic acid esters, 1,2-alkanediols, .alpha.,.omega.-alkanediols and/or dimeric diols and dicarboxylic acids containing 2 to 36 carbon atoms connecting the blocks A) and B), anhydrides thereof, esters thereof with lower alcohols containing 1 to 8 carbon atoms and/or carbonic diesters of lower alcohols containing 1 to 8 carbon atoms.

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