发明名称 |
PROCESS FOR CRYSTALLIZING BLENDS OF POLYETHYLENE TEREPHTHALATE AND POLYETHYLENE ISOPHTHALATE |
摘要 |
Polyester blends of polyethylene terephthalate and polyethylene isophthalate coated with an alkylene carbonate such as ethylene carbonate or propylene carbonate crystallize more quickly and at lower temperature than uncoated pellets, reducing the tendency of the pellets to stick together during the crystallization process prior to solid-state polymerization.
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申请公布号 |
CA2293673(A1) |
申请公布日期 |
1998.12.17 |
申请号 |
CA19982293673 |
申请日期 |
1998.06.11 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
TUNG, WILLIAM CHUNG TSING;SCHIRMER, JOSEPH PETER;PESETA, PATRICK JOSEPH |
分类号 |
C08L67/02;C08G63/80;C08G63/88;C08K5/156;(IPC1-7):C08L67/02;C08K5/15 |
主分类号 |
C08L67/02 |
代理机构 |
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代理人 |
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主权项 |
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