Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1979-08-20
1981-09-29
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428313, 428332, 4284228, 428444, 428920, B32B 520, B32B 1504
Patent
active
042923611
ABSTRACT:
A fireproof laminate passing Grade 2 incombustibility according to Japanese Industrial Standard (JIS) A-1321 combustion test is disclosed. The laminate comprises a urethane modified polyisocyanurate foam as a core material and particular surface materials piled on both sides of the foam through self-adhesion of the foam and has a density of the core material of 0.02-0.04 g/cm.sup.3 and a total thickness of not more than 30 mm.
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U.K. Patent Application GB No. 2,007,590 A, Published May 23, 1979.
Arai Katsuhiko
Ohashi Takashi
Okuyama Toru
Suzuki Akira
Bridgestone Tire Co. Ltd.
Van Balen William J.
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