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:
Oct. 25, 1977
Filed:
May. 26, 1976
Ceskoslovenska akademie ved, Prague, CS;
Abstract
The invention relates to hot-melt adhesives based on anionic copolymers of lactams, where one of the starting lactams is 8.octanolactam in the amount of 10-90 mol.% and the other at least 2 lactams containing 6 or more 6 atoms in the ring are in the amount 90-10 mol.%. These further lactams are preferably 6-hexanolactam and 12-dodecanolactam. The melt adhesives may contain further additives, as dyes, fillers, molecular weight regulators, etc. The anionic copolymerization used for their manufacturing is the simple and rapid technique which requires lower temperatures and can be easily performed continuously. The said polyamide melt adhesives are applicable e.g. in clothing and footwear industry and other textile and leather working.