Patent ID: 6617417
Filing Date: 2003-09-09
Classification: C08F,C08G,C08L,C09D,Y10T

Abstract:
A room temperature radical curable unsaturated polyester resin composition, which comprises:50-90 wt % of at least one normal unsaturated polyester and/or modified unsaturated polyester produced by allowing maleic acid, fumaric acid, maleic anhydride or derivatives or mixtures thereof, and methacrylic acid or acrylic acid in an amount of not more than 40 mol %, calculated from the amount of all the components for replacing maleic acid, fumaric acid, maleic anhydride or derivatives or mixtures thereof, to react with an alcohol/alcohols selected from 2-ethyl hexanol, benzyl alcohol, 2-phenylethyl alcohol, ethylene glycol, diethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, dipropylene glycol, 1,4-butane diol, 2-methyl-1,3-propane diol, neopentyl glycol, 2-butyl-2-ethyl-1,3-propane diol, 1,6-hexane diol, trimethylol propane and trimethylol ethane, and at most 80% of the alcohols may be replaced by glycidyl methacrylate and/or glycidyl acrylate; 0.1-40 wt% of at least one divinyl ether selected from diethylene glycol divinyl ether, triethylene glycol divinyl ether, 1,4-cylcohexane dimethylol divinyl ether, dipropylene glycol divinyl ether, tripropylene glycol divinyl ether, 1,6-hexanediol divinyl ether and 1,4-butanediol divinyl ether; not more than 30 wt % styrene; not more than 20 wt % of at least one monofunctional and/or multifunctional monomer; and optionally additives.