Plasticizer Compositions For Flexible Closed Cell Foams
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United States of America Patent
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Jan 25, 2008
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Apr 25, 2005
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Abstract
Foamable compositions based on rigid organic polymers such as polyvinyl chloride contain as the plasticizer a blend of a) a liquid oligomeric ester of phthalic acid, at least one aliphatic dicarboxylic acid or a mixture thereof; and b) a total of at least 15 weight percent, based on total plasticizer, of at least one ester of benzoic acid and/or an alkyl-substituted benzoic acid.
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