Laminated composite of a rigid polyurethane modified polyisocyan

Details Laminated composite of a rigid polyurethane modified polyisocyan Laminated composite of a rigid polyurethane modified polyisocyan

1989-09-15

1990-10-23

Buffalow, Edith

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Starting material is nonhollow planar finite length preform...

264257, 264319, 264DIG77, 264DIG53, 264DIG19, B29D 2200

Patent

active

049650386

ABSTRACT:
Laminated composites including method for the preparation thereof comprising forming in combination in a mold at least one layer of a rigid polyurethane modified polyisocyanurate by reacting in said mold, a reaction mixture of an organic di- or polyisocyanate, a cyclic alkylene carbonate and a polyether polyol in the presence of a soluble adduct aminecarbonate catalyst, and at least one layer of material selected from metal, plastic, cellulose, glass and ceramic or combinations thereof. The electrically conductive "metal clad" laminates are especially usefual as printed circuit boards.

REFERENCES:
patent: 4623577 (1986-11-01), Hsue et al.
patent: 4705721 (1987-11-01), Frisch et al.
patent: 4709002 (1987-11-01), Younes
patent: 4731427 (1988-03-01), Younes
patent: 4757123 (1988-07-01), Younes

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