Epoxidised polycycloacetals

Details Epoxidised polycycloacetals Epoxidised polycycloacetals

C - Chemistry, Metallurgy

07

D

402/31, 260/351

C07D 493/00 (2006.01) C07D 417/14 (2006.01) C07D 493/10 (2006.01) C08G 59/04 (2006.01) C08G 59/32 (2006.01)

Patent

CA 1281727

Epoxidised polycycloacetals Abstract of the Disclosure The invention relates to polycycloacetals of formula I Image , wherein n is an integer from 1 to 500, x and y are each independently of the other 0 or 1, R1 is a carbon atom or a tetravalent hydrocarbon radical having a molecular weight not greater than 1000 and which can additionally contain ether oxygen atoms or oxygen atoms in hydroxyl, carbonyl or epoxy groups, and R2 is a tetravalent hydrocarbon radical derived from a dialdehyde or a diketone. The polycycloacetals can be used together with conventional hardeners and/or curing catalysts for epoxy resins for the fabrication of cross- linked (cured) products having good properties, especially having excellent fastness to solvents, light and weathering.

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