| 摘要 |
<p>A branched epoxide functional polyester composed of a prepolymer having at least one carboxyl group and at least three hydroxyl groups, which is made epoxide functional by reaction between at least one of said hydroxyl groups in the prepolymer and at least one haloalkyl oxirane or by addition of at least one unsaturated compound having at least one oxidizable unsaturation, which unsaturation by employing at least one oxidizing agent is epoxidized before or after said addition. The prepolymer is a condensation product obtained by condensing at least one monomer selected from the group consisting of di, tri or polyhydroxyfunctional monocarboxylic acids having 2-18 carbon atoms optionally followed by further chain extension by addition of at least one monohydroxyfunctional monocarboxylic acid or corresponding lactone having 2-24 carbon atoms.</p> |
