- 专利标题： NOVEL POLYCONDENSATION PRE-POLYESTERS, OTHER COPOLYESTER PRECURSORS, AND COPOLYESTERS MADE THEREFROM
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申请号： US17596696申请日： 2020-06-26
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公开(公告)号： US20230002308A1公开(公告)日： 2023-01-05
- 发明人: Robert Jacks Sharpe , Emmett Dudley Crawford
- 申请人： Eastman Chemical Company
- 申请人地址： US TN Kingsport
- 专利权人： Eastman Chemical Company
- 当前专利权人： Eastman Chemical Company
- 当前专利权人地址： US TN Kingsport
- 国际申请： PCT/US2020/039740 WO 20200626
- 主分类号： C07C69/82
- IPC分类号： C07C69/82 ; C08G63/199 ; C08G63/183 ; C07C69/75 ; C07D307/68
摘要：
This invention relates to at least one copolyester comprising repeat units of the following structure: wherein R and R″ represent residues of at least one diol; and wherein R and R″ are not the same; wherein R′ comprises residues of at least one diacid or diester and wherein n represents number of repeat units; and/or copolyester precursors thereof, and methods of manufacture.
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