Patent ID: 7582701
Filing Date: 2009-09-01
Classification: C08F,C08K,C08L

Abstract:
1. An unsaturated polyester resin mixture which can be cured by applying external pressure and which comprises at least the following components: a) an unsaturated polyester resin whose weight-average molar mass is from 500 to 5000 g/mol; b) an ethylenically unsaturated monomer; c) a shrinkage-reducing component; d) an inert filler; and e) a reinforcing fibre; and f) from 0.01 to 1% by weight of a block copolymer, based on the total weight of the unsaturated polyester resin mixture, wherein the block copolymer comprises at least one A block and comprises at least one B block, wherein the A block contains at least one amine-containing, ethylenically unsaturated monomer incorporated by polymerization into the polymer; and the B block contains at least one alkyl- and/or phenyl-containing, ethylenically unsaturated monomer incorporated by polymerization into the polymer, and is free from amine-containing, ethylenically unsaturated monomers incorporated by polymerization into the polymer.