Polyvinyl chloride compositions plasticized with copolyesters
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United States of America Patent
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Oct 24, 1989
Issued Date -
N/A
app pub date -
Jan 9, 1989
filing date -
May 15, 1986
priority date (Note) -
Expired
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Abstract
Copolyester plasticizers useful for the formulation of PVC refrigerator gaskets which exhibit improved resistance to migration and marring and improved processing characteristics are provided. The copolyesters are obtained by reacting an acid component consisting of a mixture of a benzene dicarboxylic acid (or anhydride or methyl ester thereof) and an aliphatic C.sub.5-12 saturated dicarboxylic acid (or methyl ester) with an alcohol component consisting of a mixture of neopentyl glycol and ethylene glycol. An aliphatic C.sub.6-13 saturated monofunctional alcohol or aliphatic C.sub.6-13 saturated monocarboxylic acid terminating agent is also included in the reaction.
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