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. 25, 2008
Filed:
Jan. 13, 2004
Bradley L. Beach, Lexington, KY (US);
Bhaskar Gopalanarayanan, Lexington, KY (US);
Johnny D. Massie, Ii, Lexington, KY (US);
Bradley L. Beach, Lexington, KY (US);
Bhaskar Gopalanarayanan, Lexington, KY (US);
Johnny D. Massie, II, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
Rolls having a polyurethane elastomer formed from a polyurethane mixture, wherein the polyurethane mixture comprises polydiene, tri-functional polyol curative, an additional graft polymer curative having a molecular weight of at least about 800 and comprising diol, polyol, diamine, polyamine or a combination thereof, conductive modifier, antioxidant, and hydrolytic stabilizer. Methods of forming such rolls include casting the polyurethane mixture, followed by curing, then demolding, grinding to desired dimensions and baking such that the outer layer of the cured roll is oxidized.