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:
Jan. 11, 2005
Filed:
Aug. 31, 2001
Stephen Rickner, Irvine, CA (US);
Joseph Jibrail, Mission Viejo, CA (US);
Jose Camba, West Covina, CA (US);
Carlos Velasco, Jr., Corona, CA (US);
Calvin Peeler, Canton, MI (US);
Michael May, Clawson, MI (US);
Stephen Rickner, Irvine, CA (US);
Joseph Jibrail, Mission Viejo, CA (US);
Jose Camba, West Covina, CA (US);
Carlos Velasco, Jr., Corona, CA (US);
Calvin Peeler, Canton, MI (US);
Michael May, Clawson, MI (US);
BASF Corporation, Mt. Olive, NJ (US);
Abstract
A method of making a polyurea—polyurethane composite structure that is substantially free from emission of volatile organic compounds is disclosed. The composite structure produced according to the method of the subject invention has a flexural modulus of at least 200,000 lb/in. The composite structure includes first and second layers. A mold substrate is provided and a first-layer polyisocyanate component and a first-layer resin component are reacted and sprayed onto the mold substrate to form the first-layer. The first-layer polyisocyanate component includes an aliphatic polyisocyanate, and the first-layer resin component includes a polyamine thereby forming a polyurea show surface having a Shore D hardness of at least 65. After application of the first-layer, a second-layer polyisocyanate component and a second-layer resin component are reacted and sprayed behind the first-layer to form the second-layer of the composite structure. The second layer resin component more specifically includes a polyol having a theoretical functionality of at least three. The first and second layers of the composite are substantially free of VOCs.