Curable compositions comprising an epoxidised unsaturated polyester and mineral fillers
AssigneeQuarella S.p.A.
InventorsAlessandro Godi, Pierpaolo Tassone
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Abstract
A curable composition includes an unsaturated polyester and an unsaturated monomer copolymerisable with the unsaturated polyester in the presence of polymerisation accelerators and initiators. The unsaturated polyester is an epoxidised unsaturated polyester obtainable by reaction between unsaturated polyester obtainable by reaction between the carboxy end groups of a polyester having unsaturated monomer units and the epoxy groups of an epoxy resin.
Claims9
A curable composition comprising an unsaturated polyester and an unsaturated monomer copolymerisable with said unsaturated polyester in the presence of polymerization accelerators and initiators, characterised in that the unsaturated polyester is an epoxidised unsaturated polyester obtained by reaction between the carboxy end groups of a polyester comprising unsaturated monomer units and the epoxy groups of an epoxy resin,
- wherein the unsaturated monomer units of the polyester are obtained by reacting a glycol with unsaturated polycarboxylic acids or their anhydrides, and
- wherein the glycol is a mixture of dipropylene glycol, propylene glycol and ethylene glycol in molar ratios of between 1:1:0.5 and 1.25:1:1.25.
Dependencies are inferred from the claim text.