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. |
申请公布号 |
ZA8306270(B) |
申请公布日期 |
1984.04.25 |
申请号 |
ZA19830006270 |
申请日期 |
1983.08.24 |
申请人 |
GOODYEAR TIRE & RUBBER |
发明人 |
KELLEY MELLIS MICHAEL;SMITH RICHARD ROBINSON |
分类号 |
C08G63/00;C08G63/78;C08G63/87 |
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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