| 发明名称 |
REDUCTION OF ACIDITY OF POLYESTERS BY MELT REACTION ENDCAPPING WITH DIALKYLOXYLATE OR TETRAALKYL UREA |
| 摘要 |
A method for the melt reaction of polyesters, particularly polyethylene terephthalate, with an endcapping agent which reacts with terminal carboxyl groups of the polyester. The endcapping agents are selected from the group consisting of dialkyloxylates and tetraalkylureas.
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| 申请公布号 |
CA2023758(C) |
申请公布日期 |
1997.04.29 |
| 申请号 |
CA19902023758 |
申请日期 |
1990.08.22 |
| 申请人 |
ALLIEDSIGNAL INC |
发明人 |
HERGENROTHER, WILLIAM L.;DOSHAK, JOHN M. |
| 分类号 |
C08L67/02;C08G63/20;C08G63/91;C08L67/00;(IPC1-7):C08G63/91;C08G63/183 |
主分类号 |
C08L67/02 |
| 代理机构 |
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| 主权项 |
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