发明名称 |
High-molecular weight polymers and methods of manufacture |
摘要 |
A composition comprises a solid-stated block copolymer of an aromatic polyester and a caprolactone, wherein the copolymer has been solid state polymerized such that intrinsic viscosity increases at least 20%, the caprolactone content decreases no more than 1.2% absolute and the transesterification increases no more than 3.5% absolute, and wherein the solid-stated copolymer has an intrinsic viscosity of at least 0.82. Particularly preferred chain extension reactions are performed at a temperature of less than 175° C., and even more preferably at less than 165° C. In further aspects of the inventive subject matter, yarns and methods of producing a fiber include contemplated solid-stated block copolymers.
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申请公布号 |
US2003092853(A1) |
申请公布日期 |
2003.05.15 |
申请号 |
US20020266517 |
申请日期 |
2002.10.08 |
申请人 |
SRIDHARAN SRINIVASAN;YOUNG JOHN ARMSTRONG;ARTHUR DONALD JAMES;YIU-TAITAM THOMAS |
发明人 |
SRIDHARAN SRINIVASAN;YOUNG JOHN ARMSTRONG;ARTHUR DONALD JAMES;YIU-TAITAM THOMAS |
分类号 |
C08G63/60;C08G63/80;(IPC1-7):C08G63/91 |
主分类号 |
C08G63/60 |
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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