Laminated composite of a rigid polyurethane modified...

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

H - Electricity

05

K

18/63, 18/911

H05K 1/03 (2006.01) C08G 18/00 (2006.01) C08G 18/06 (2006.01) C08G 18/09 (2006.01) C08G 18/18 (2006.01) C08G 18/20 (2006.01) C08K 5/1565 (2006.01)

Patent

CA 1300328

ABSTRACT OF THE DISCLOSURE 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.

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