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:
Nov. 26, 2013
Filed:
May. 26, 2009
Bertrand Louis Julien Lenoble, Silly, BE;
Yihan Liu, Midland, MI (US);
Francisco Palencia, Midland, MI (US);
Lori Jean Poungthana, Saginaw, MI (US);
Jeffrey Rastello, Saginaw, MI (US);
Bertrand Louis Julien Lenoble, Silly, BE;
Yihan Liu, Midland, MI (US);
Francisco Palencia, Midland, MI (US);
Lori Jean Poungthana, Saginaw, MI (US);
Jeffrey Rastello, Saginaw, MI (US);
Dow Corning Corporation, Midland, MI (US);
Abstract
The invention relates to coatings for leather. In particular it relates to top coats for leather. It provides a leather coating composition comprising an organic synthetic resin in aqueous dispersion and an organopolysiloxane, characterized in that the organopolysiloxane is present in aqueous emulsion and comprises a silicone resin having an empirical formula: (I) where •R is a monovalent organic group having 1-30 carbon atoms, •Z is hydrogen or an alkyl group having 1-4 carbon atoms, •x has a value from 0.75 to 1.7, and •y has a value from 0.1 to 2.0, and having a viscosity of from 1 to 4000 mPa·s at 25° C. We have found that the use of a silicone resin according to the invention greatly increases the abrasion resistance, as measured by the Taber method, of leather coated with the coating composition.