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. 28, 2006
Filed:
Nov. 21, 2003
Tina L. Grubb, Sinking Spring, PA (US);
Catherine A. Kleckner, Bethel, PA (US);
William E. Wertz, Reading, PA (US);
Michael C. Siminski, Sinking Spring, PA (US);
Andrew T. Daly, Sinking Spring, PA (US);
Jeno Muthiah, Wernersville, PA (US);
Tina L. Grubb, Sinking Spring, PA (US);
Catherine A. Kleckner, Bethel, PA (US);
William E. Wertz, Reading, PA (US);
Michael C. Siminski, Sinking Spring, PA (US);
Andrew T. Daly, Sinking Spring, PA (US);
Jeno Muthiah, Wernersville, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
Corrosion- and chip-resistant coatings for high tensile steel components, such as automotive coil springs, are formed from a coating powder composition of 'toughened' epoxy resin. In a single coat embodiment, the entire coating is loaded with at least 75 phr zinc powder. In a dual coat embodiment, an inner coat is loaded with at least 75 phr zinc and an outer, zinc-free coating is reinforced by the addition of fibers and/or by a foaming agent which renders it porous.