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:
Jul. 14, 2015
Filed:
Mar. 19, 2010
Myron W. Shaffer, New Cumberland, WV (US);
Abdullah Ekin, Imperial, PA (US);
Carol L. Kinney, Eighty Four, PA (US);
Dorota Greszta-franz, Solingen, DE;
Jonathan T. Martz, Glenshaw, PA (US);
Jun Deng, Murrysville, PA (US);
Deborah E. Hayes, Verona, PA (US);
Stephen J. Thomas, Aspinwall, PA (US);
Myron W. Shaffer, New Cumberland, WV (US);
Abdullah Ekin, Imperial, PA (US);
Carol L. Kinney, Eighty Four, PA (US);
Dorota Greszta-Franz, Solingen, DE;
Jonathan T. Martz, Glenshaw, PA (US);
Jun Deng, Murrysville, PA (US);
Deborah E. Hayes, Verona, PA (US);
Stephen J. Thomas, Aspinwall, PA (US);
Bayer MaterialScience LLC, Pittsburgh, PA (US);
Bayer MaterialScience AG, Leverkusen, DE;
PPG, Inc., Pittsburgh, PA (US);
Abstract
Composition and process for low temperature curing of polyuretdione-polyol compositions in which the polyuretdione is prepared from a polyisocyanate with isocyanate groups and a polyol containing primary hydroxyl groups. The catalyst for the composition and process is an amine catalyst containing the group —N═C—N—, being aprotic, having a pKa greater than 20 and upon addition to the liquid coating composition causing a phase-change of the coating composition from liquid to solid at 25° C. and 1 atm. within one week.