Invention Grant
- Patent Title: High density polyurethane and polyisocyanurate construction boards and composite boards
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Application No.: US12525159Application Date: 2008-01-30
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Publication No.: US08453390B2Publication Date: 2013-06-04
- Inventor: John Letts , Gregory Brandt
- Applicant: John Letts , Gregory Brandt
- Applicant Address: US IN Indianapolis
- Assignee: Firestone Building Products Company, LLC
- Current Assignee: Firestone Building Products Company, LLC
- Current Assignee Address: US IN Indianapolis
- Agent Jason A. Houser; Arthur M. Reginelli
- International Application: PCT/US2008/001236 WO 20080130
- International Announcement: WO2008/094606 WO 20080807
- Main IPC: E04B7/02
- IPC: E04B7/02 ; E04B5/00 ; E04C1/00 ; E04G21/00 ; B32B27/00 ; B32B27/40
Abstract:
A construction board comprising a cellular body including at least one planar surface, where the cellular body includes a polyurethane or polyisocyanurate cellular structure, where the cellular structure has a density greater than about 2.5 pounds per cubic foot, an ISO index of at least 270, and where the cellular body includes at least 5.0% by weight flame retardant based on the weight of the cellular body.
Public/Granted literature
- US20100031603A1 HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS Public/Granted day:2010-02-11
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