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US 12,747,352 B2Granted
Polymer composition with a high degree of thermal shock resistance
AssigneeTicona LC
InventorsZhe Tan, Xiaoyan Liu, Yuehua Yu, Fangfang Tao, Wenli Xu
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Abstract
A polymer composition containing an impact modifier and a fibrous filler dispersed within a polymer matrix is provided. The polymer matrix contains a high performance thermoplastic polymer that exhibits a deflection temperature under load of about 40° C. or more as determined in accordance with ISO 75-2:2013 at a load of 1.8 MPa and a melting temperature of about 140° C. or more. The polymer composition exhibits a thermal shock resistance value of about 800 or more.
Claims29
A polymer composition comprising:
- 100 parts by weight of a polymer matrix that contains a high performance thermoplastic polymer that exhibits a deflection temperature under load of about 40° C. or more as determined in accordance with ISO 75-2:2013 at a load of 1.8 MPa and a melting temperature of about 140° C. or more;
- from 1 to 20 parts by weight of at least one impact modifier per 100 parts by weight of the polymer matrix;
- and
- from 25 to 80 parts by weight of a fibrous filler per 100 parts by weight of the polymer matrix, wherein the fibrous filler includes glass fibers;
- wherein the polymer composition further exhibits a thermal shock resistance value of 800 or more, a melt viscosity of 5 kP or less as determined in accordance with ISO 1143:2021 at a temperature of 310° C. and shear rate of 400 s−1, and a tensile stress at break of from 120 to 200 MPa as determined at a temperature of 23° C. in accordance with ISO 527:2019.
2 more elements
Dependencies are inferred from the claim text.