Invention Grant
- Patent Title: Environmentally friendly polyurethane composite panel
- Patent Title (中): 环保聚氨酯复合板
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Application No.: US13805380Application Date: 2011-07-11
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Publication No.: US08808485B2Publication Date: 2014-08-19
- Inventor: Allan James , Daniele Paolini
- Applicant: Allan James , Daniele Paolini
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Priority: ITMI2010A1380 20100727
- International Application: PCT/US2011/043503 WO 20110711
- International Announcement: WO2012/015583 WO 20120202
- Main IPC: B29C65/70
- IPC: B29C65/70 ; B27D1/08

Abstract:
The present invention is a method to make an environmentally friendly polyurethane molded article (100) comprising at least 20 percent renewable materials and molded articles made therefrom. Specifically, the method provides for molding a polyurethane coated sandwich structure (40) comprising a honey comb core (30) having fiber reinforcing layers (10, 20) to provide an environmentally friendly polyurethane molded article with a desired shape such as an automobile load floor. The polyurethane coating is derived from a polyurethane—forming mixture comprising an isocyanate component and a polyol component. Specifically, the polyol component comprises one or more natural oil based polyol, preferably comprising at least one of a hydroxymethylated fatty acid or a hydroxymethylated fatty acid (methyl) ester.
Public/Granted literature
- US20130136931A1 ENVIRONMENTALLY FRIENDLY POLYURETHANE COMPOSITE PANEL Public/Granted day:2013-05-30
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