Unsaturated polyester molding composition

摘要

This invention concerns a curable composition comprising a mixture of: (A) the reaction product of an ester diol alkoxylate of the structural formula: <IMAGE> wherein m is an integer having a value of from 2 to 4, preferably 2 or 3; n is an integer having a value of from 1 to 5, preferably 1 to 3 and most preferably 1; x and y are integers each having a value of from 1 to 20, preferably 1 to 10; R is an unsubstituted or substituted, linear or branched alkyl group having from 1 to 8 carbon atoms, preferably 1 to 3 carbon atoms, and an intramolecular anhydride of a polycarboxylic acid; and (B) an ethylenically unsaturated monomer. This composition can be used in the manufacture of fiber-reinforced plastic compositions.