Reinforced plasterboard and method of forming

Details Reinforced plasterboard and method of forming Reinforced plasterboard and method of forming

1988-10-12

1990-02-20

Dawson, Robert A.

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106115, 521100, 264333, 156 42, C04B 2412, C04B 1826

Patent

active

049023489

ABSTRACT:
The present invention is directed to a process for the manufacture of plasterboard optionally strengthened with reinforcing materials by mixing gypsum capable of rehydration with water and optionally reinforcing materials and subsequently pressing the resulting mixture, characterized in that polyisocyanates are added to the mixture used for producing the plasterboard and/or are applied to the surface of the finished plasterboard. The invention is also directed to the optionally reinforced plasterboard.

REFERENCES:
patent: 3965051 (1976-06-01), Markusch et al.
patent: 4047962 (1977-09-01), Copeland
patent: 4097422 (1978-06-01), Markush
patent: 4211848 (1980-07-01), Blount
patent: 4303722 (1981-12-01), Pilgrim
patent: 4313112 (1983-11-01), Reiff
patent: 4328178 (1982-05-01), Kossatz

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