Structural foams of unsaturated polyester resins and process...

Details Structural foams of unsaturated polyester resins and process... Structural foams of unsaturated polyester resins and process...

C - Chemistry, Metallurgy

08

G

403/57

C08G 65/32 (2006.01) C08G 63/685 (2006.01) C08J 9/30 (2006.01)

Patent

CA 1116787

ABSTRACT OF THE DISCLOSURE Unsaturated polyester resins having an acidity number of 5-90 mg. KOH/g. and a molecular weight of 500-5000 and which are capable of entrapping air or other inert gases so as to form structural foams and contain in the chain 0.1 to 20 mol% of amide and/or amine groups. These groups are preferably derived from the reaction of an organic compound having two reactive groups at least one of which contains nitrogen with the polycarboxylic acid and/or polyvalent alcohol contained in the polyester resin.

288119

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