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:
Sep. 15, 2015
Filed:
May. 15, 2006
BI Le-khac, West Chester, PA (US);
Karl W. Haider, Wexford, PA (US);
Ramesh Subramanian, Coraopolis, PA (US);
Charles A. Gambino, McDonald, PA (US);
James Edward Kassner, Wexford, PA (US);
HU Xiaowei, Exton, PA (US);
William J. Sim, Simi Valley, CA (US);
Bi Le-Khac, West Chester, PA (US);
Karl W. Haider, Wexford, PA (US);
Ramesh Subramanian, Coraopolis, PA (US);
Charles A. Gambino, McDonald, PA (US);
James Edward Kassner, Wexford, PA (US);
Hu Xiaowei, Exton, PA (US);
William J. Sim, Simi Valley, CA (US);
ALLNEX IP S.à.r.L., Luxembourg, LU;
Abstract
Provided are ultraviolet (UV)-curable polyols and polyurethane compositions made by reacting the inventive polyol with an isocyanate. The inventive ultraviolet (UV)-curable polyol is made by co-polymerizing an alkylene oxide, an unsaturated carboxylic acid or anhydride and a hydroxy functional compound in the presence of a double metal cyanide (DMC) complex catalyst such that the polyol has an ultra-low level of unsaturation. The inventive polyols may be used to produce prepolymers, which in turn may be useful in making thin films which in turn may provide such items as medical examination gloves and scientific gloves. The inventive ultraviolet (UV)-curable polyurethane compositions may also find use in or as coatings, adhesives, sealants, elastomers and the like.