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:
Aug. 13, 2002
Filed:
Feb. 15, 2001
Lichang Zhou, Hattiesburg, MS (US);
Shelby F. Thames, Hattiesburg, MS (US);
Oliver W. Smith, Petal, MS (US);
Thomas Clayton Forschner, Richmond, TX (US);
Roy Frank Smith, Pearland, TX (US);
David Eric Gwyn, Houston, TX (US);
Wyndham Henry Boon, North Canton, OH (US);
Abdulai Mobolaji Dawodu, Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
Disclosed is a modified acrylic coating composition cured with melamine characterized by improved impact resistance which comprises: An acrylic polyol dissolved in a suitable solvent to 40-90% solids; 2 to 50% by weight of said acrylic polyol substituted with a polytrimethylene carbonate polyol selected from a polytrimethylene carbonate diol, a polytrimethylene carbonate triol, or a higher functionality polytrimethylene carbonate polyol; a melamine crosslinking agent; optionally a catalyst; and optionally pigments and other additives commonly used in coatings. Also disclosed in a related embodiment is a melamine/urea formaldehyde polytrimethylene carbonate coating composition that is prepared without acrylic.