Polymer blends with improved hydrolytic stability
AssigneeOccidental Chemical Corporation
InventorsGideon Salee, Jerold C. Rosenfeld
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Abstract
This invention relates to substantially transparent solid solution polymer blends having improved hydrolytic stability, and flexibility which comprise, in admixture, (1) a linear aromatic polyester of a dicarboxylic acid and a bisphenol, and (2) a linear aromatic polysulfonate of a bisphenol and a disulfonic acid. The polyblends are useful in preparation of films and molded articles.
Claims21
A thermoplastic polymeric composition comprising a solid solution polyblend of (a) a linear aromatic polyester of components comprising a bisphenol and a dicarboxylic acid and (b) a linear aromatic polysulfonate of components comprising a bisphenol and a disulfonic acid.
A thermoplastic polymeric composition comprising a solid solution polyblend of (a) a polyester selected from the group consisting of poly-(bisphenol A-isophthalate), poly-(bisphenol A-terephthalate) and bisphenol-A isophthalate-terephthalate polyester and (b) bisphenol-A-4,4' diphenyl disulfonate polysulfonate, the proportion of said polyester to said polysulfonate being about 30:70 to about 70:30.
Dependencies are inferred from the claim text.