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:
Jan. 15, 1991
Filed:
Apr. 24, 1990
Derek W Heywood, Cheadle Hulme, GB;
Stuart B Howarth, Cannock, GB;
BIP Chemicals, Ltd., Manchester, GB;
Abstract
In a process for the treatment of woollen textile material, which may be in the form of yarn or fabric, to reduce shrinkage and felting and improve resistance to abrasion, by depositing a polyamide-epichlorhydrin resin thereon, the material is given a subsequent treatment with an aqueous polyurethane dispersion. The polyurethane thus disposed adds to the improvement in properties brought about by the polyamide-epichlorhydrin resin. The woollen textile material to the treated, especially when in the form of yarn, may comprise wool admixed with other (particularly synthetic) fibre, such as fibres of viscose, polyesters and especially polyamides, such as nylon.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile