发明名称 |
COPOLYETHERESTER COMPOSITIONS AND ARTICLES MADE FROM THESE |
摘要 |
<p>Copolyetherester compositions comprising a melt-mixed blend of one or more copolyetherester(s) comprising a multiplicity of recurring long chain ester units and short chain ester units joined head-to-tail through ester linkages, and (b) about 0.25 to about 15 weight percent of one or more polyhydric alcohols having more than two hydroxyl groups; wherein all weight percentages are based on the total weight of the copolyetherester composition. Molded or extruded thermoplastic articles formed from the copolyetherester compositions, wherein 2 mm test bars prepared from said copolyetherester composition, and exposed at a test temperature of 150° C. for a test period of about 120 hours, in an atmosphere of air, and tested according to according to ISO 527-2/5A method have, on average, a retention of tensile strain at break of at least 50 percent as compared with an unexposed control having identical composition and shape.</p> |
申请公布号 |
EP2307499(A4) |
申请公布日期 |
2015.11.18 |
申请号 |
EP20090803583 |
申请日期 |
2009.07.30 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
PALMER, ROBERT, J.;PEACOCK, JUDITH, ALISON;WRIGLEY, DAVID, J. |
分类号 |
C08L77/02;C08K5/00;C08K5/053;C08K5/18;C08L77/00 |
主分类号 |
C08L77/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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