The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2001
Filed:
Sep. 07, 1993
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
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, &agr;,&ohgr;-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.