Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-04-08
1993-01-19
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
277227, 277228, 428240, 428241, 428245, 428283, 428290, 428412, 4284735, 428480, 428483, B32B 524, B32B 526, B32B 2702, B32B 2708, B65D 5300
Patent
active
051806312
ABSTRACT:
The present invention provides a sheet material comprising a sheet-shaped material made of an inorganic filler other than asbestos, a rubber material and a polycarbodimide pulp, and a reinforcing material treated with a polycarbodiimide resin.
The present invention further provides a process for producing a sheet material, which comprises shaping an inorganic filler other than asbestos, a rubber material and a polycarbodiimide pulp into sheet-shaped material, treating reinforcing material with a polycarbodiimide resin, laminating the sheet-shaped material and the reinforcing material, then hot-pressing them at a temperature equal to or higher than the softening point of the polycarbodiimide pulp and the polycarbodiimide resin.
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patent: 4060664 (1977-11-01), McGuire et al.
patent: 4081422 (1978-03-01), Cordes et al.
patent: 4111887 (1978-09-01), Shaner et al.
patent: 4144372 (1979-03-01), Beck
patent: 4254177 (1981-03-01), Fulmer
patent: 4273879 (1981-06-01), Langer et al.
patent: 5049603 (1991-09-01), Mochizuki
Cannon James C.
Nisshinbo Industries Inc.
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