发明名称 |
Production of polyesters and polyester articles having good clarity |
摘要 |
Disclosed is an improvement in a process for producing linear polyesters wherein a precursor polyester is first formed and subsequently the precursor polyester is formed into particles and further polymerized in the solid state, wherein the improvement comprises contacting the particles while at a temperature of about 140 DEG to about 2 DEG C. below the melting point of the polyester with the vapor of water or an organic compound having at least one OH group.
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申请公布号 |
US5393871(A) |
申请公布日期 |
1995.02.28 |
申请号 |
US19930000316 |
申请日期 |
1993.01.04 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
YAU, CHEUK C.;CHERRY, CLINTON |
分类号 |
C08G63/78;C08G63/80;(IPC1-7):C08G63/16 |
主分类号 |
C08G63/78 |
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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