Resin treatment of fibrous sheets

Details Resin treatment of fibrous sheets Resin treatment of fibrous sheets

2006-02-03

2009-10-13

Salvatore, Lynda (Department: 1794)

Coating processes

Applying superposed diverse coating or coating a coated base

Synthetic resin coating

C427S404000, C428S160000, C428S164000

Reexamination Certificate

active

07601398

ABSTRACT:
A method of forming an impregnated fibrous sheet comprising impregnating a fibrous material with a tin catalyst to form a catalyst-impregnated material, treating the catalyst-impregnated material with a polyisocyanate composition to form a polyisocyanate-impregnated fibrous material, and curing the polyisocyanate-impregnated fibrous material to provide a resin-impregnated fibrous sheet. Laminated materials and a method of producing the same are also provided.

REFERENCES:
patent: 5008359 (1991-04-01), Hunter
patent: 5140086 (1992-08-01), Hunter et al.
patent: 5580922 (1996-12-01), Park et al.
patent: 2003/001050 (2003-01-01), None

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