| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 04.00 |
| PATENT ASSIGNEE | Bridgestone/Firestone Inc |
| PATENT CLAIMS |
(a) Foam core of polyisocyanurate, PU material (b) Facer applied to one major surface of core & comprising sheet selected from polypropylene, polyamide, polymer latexes, & mixt thereof, reinforced polymer materials, cellulosic materials paper, Al foil & trilaminates thereof, wherein said latter polymer materials & cellulosic materials are reinforced with glass strands, glass fibers (c) Gypsum board applied to opposite major surface of foam core |
| PATENT PHOTOCOPY | Available on request |
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