Acryl-modified polyester resin composition and method of preparing the same
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United States of America Patent
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Mar 4, 2008
Grant Date -
Aug 5, 2004
app pub date -
Dec 30, 2003
filing date -
Dec 30, 2002
priority date (Note) -
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Abstract
A condensation polymerization of apolyhydric alcohol and a polybasic acid in a solvent is performed to give a polyester resin. The polyester resin and an unsaturated polybasic acid are polymerized to give a polyester resin intermediate of following formula (1) having a carbon-carbon double bond at one end. The polyester resin intermediate is polymerized with an acryl monomer to give an acryl-modified polyester resin composition. Due to the polymerization of the polyester resin intermediate having the carbon-carbon double bond and the acryl monomer, a paint including the acryl-modified polyester resin composition has advantages of a polyester resin and the acryl resin, R--CH.sub.2--O--CO--CH.dbd.CH--X (1) wherein R represents a polyester polymer residue, and X represents a methyl or carboxylic group.
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