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:
Feb. 26, 2013
Filed:
Aug. 20, 2010
Alexander V. Lubnin, Copley, OH (US);
Elizabeth A. Flores, Sheffield Lake, OH (US);
Gregory R. Brown, Heywood, GB;
Nai Z. Huang, Cleveland, OH (US);
Alexander V. Lubnin, Copley, OH (US);
Elizabeth A. Flores, Sheffield Lake, OH (US);
Gregory R. Brown, Heywood, GB;
Nai Z. Huang, Cleveland, OH (US);
Lubrizol Advanced Materials, Inc., Cleveland, OH (US);
Abstract
The water-resistance properties of polyester-based polyurethanes are remarkably enhanced, without adversely affecting the transparency properties of these materials to any significant degree, by including in the polymer a substantially dispersed nano-particle proton scavenger. The hydrolytic stability and water-resistance properties of polyester-based polyurethanes are remarkably enhanced and match those of polycarbonate-based polyurethanes, without adversely affecting the transparency of these materials to any significant degree, by including in the polymer a substantially dispersed nano-particle proton scavenger such as calcium carbonate.