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:
May. 23, 2006
Filed:
Nov. 06, 2001
Chetan P. Jariwala, Woodbury, MN (US);
James D. Eggleston, Saint Paul, MN (US);
Michael A. Yandrasits, Hastings, MN (US);
Rudolf Dams, Antwerp, BE;
Dirk M. Coppens, Melsele, BE;
Chetan P. Jariwala, Woodbury, MN (US);
James D. Eggleston, Saint Paul, MN (US);
Michael A. Yandrasits, Hastings, MN (US);
Rudolf Dams, Antwerp, BE;
Dirk M. Coppens, Melsele, BE;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
This invention provides a method of treating fibrous substrates, such as leather, by contacting the substrate with a fluorochemical compound comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluoroaliphatic group having a fully fluorinated terminal group and each independently linked to a carbon atom of the aliphatic backbone through an organic linking group; an aliphatic moiety; and a linking group which links the fluorochemical oligomeric portion to the aliphatic moiety. The fluorochemical compounds provide desirable oil, water and stain repellency to fibrous substrates.