Stabilized flexible thermoplastic composition and products formed therefrom
AssigneeTicona LLC
InventorsEmily C. Blackburn, Rong Luo, Xinyu Zhao, Jared Kindt, Xiaoyan Tu
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Abstract
Thermoplastic compositions are described that exhibit heat stability in addition to flexibility. Methods for forming the thermoplastic compositions are also described. The compositions include a polyarylene sulfide, an impact modifier and a heat stabilizer. The composition includes the impact modifier in a relatively large amount in combination with the heat stabilizer to provide long term heat stability to the composition and products formed therefrom such as coated wires and cables.
Claims24
A thermoplastic composition including a polyarylene sulfide, an epoxy-functionalized impact modifier, a heat stabilizer and an ultrahigh molecular weight siloxane polymer, wherein the impact modifier is crosslinked to itself, the heat stabilizer, and/or the polyarylene sulfide by a crosslinker, the crosslinker comprising a metal salt of a fatty acid, the crosslinker further comprising a polyfunctional carboxylic acid, a diol, or a diamine, wherein the thermoplastic composition includes the impact modifier in an amount that is from 15% to 40% by weight of the thermoplastic composition and includes the heat stabilizer in an amount that is from 0.05% to 3% by weight of the thermoplastic composition, the thermoplastic composition having a tensile modulus of about 3,000 megapascals or less as determined according to ISO Test No. 527 at a temperature of 23° C. and a test speed of 50 millimeters per minute.
Dependencies are inferred from the claim text.