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

1987-08-24

1989-12-12

Buffalow, Edith

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428290, 4284228, 4284244, 4284251, 4284256, 4284258, 428901, 528 53, 525 5422, 525455, 174 685, B32B 700

Patent

active

048867004

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 amine-carbonate 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 useful 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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