Document Type and Number:
Japanese Patent JPS5010627
Kind Code:
B1
Abstract:
A method for curing unsaturated polyester compositions which comprises applying electron-beam at a total dose of 0.5 to 50 Mrad and a dose rate of 0.1 to 30 Mrad per second to an unsaturated polyester composition comprising a vinyl monomer and unsaturated polyester dissolved therein, said vinyl monomer being a mixture of 40 to 70 weight percent of at least one of acrylic and methacrylic monomers and 30 to 60 weight percent of at least one of styrene and vinyl toluene, and said unsaturated polyester having an acid value of 4 to 11 and being a condensation product of 1.0 mole of a dicarboxylic acid and 1.0 to 1.2 moles of a polyhydric alcohol, and said dicarboxylic acid being a mixture of (a) 30 to 45 mole percent of at least one of endo-cis-bicyclo-(2,2,1)-5-heptene-2,3-dicarboxylic acid and anhydride thereof, (b) 20 to 40 mole percent of at least one of unsaturated dicarboxylic acids and anhydrides thereof and (c) 15 to 55 mole percent of at least one of aromatic dicarboxylic acids, saturated aliphatic dicarboxylic acids and anhydrides thereof.
Application Number:
JP4131371A
Publication Date:
April 23, 1975
Filing Date:
June 09, 1971
Export Citation:
International Classes:
C08F283/01; C08G63/553; (IPC1-7): C08F299/04; C08F2/54; C08F220/12; C08F212/06; C08G63/52; C09D3/68