发明名称 |
Polyterephthalates and copolymers thereof having high clarity and process for making same |
摘要 |
This invention relates to polyethylene terephthalate and copolymers thereof having high clarity and process for making the same. The invention provides a process for making PET using protonic acid catalysts which result in a polymer having a level of haze which is lower than has heretofore been attainable, using conventional metallic catalysts. Further, the polyesters so produced have a lower melt temperature which improves the processability.
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申请公布号 |
US4447595(A) |
申请公布日期 |
1984.05.08 |
申请号 |
US19820415305 |
申请日期 |
1982.09.07 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
SMITH, RICHARD R.;KELLEY, MELLIS M. |
分类号 |
C08G63/00;C08G63/78;C08G63/87;(IPC1-7):C08G63/04;C08G63/16;C08G63/22 |
主分类号 |
C08G63/00 |
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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