发明名称 |
Method for thermally processing polyester pellets |
摘要 |
A method for thermally processing polyester pellets by crystallization and polymerization in the solid state which comprises providing a confined processing unit. The pellets are introduced to said unit along with a liquid medium. The combination of pellets and liquid medium is agitated to achieve mixing and the temperature of the agitated mixture is controlled to achieve treating of the polyester pellets in the agitated heating liquid medium at a temperature slightly below the sticking temperature of the polyester. The treatment is continued for a period sufficient to substantially increase the crystallinity and molecular weight of the polyester.
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申请公布号 |
US5532335(A) |
申请公布日期 |
1996.07.02 |
申请号 |
US19950427801 |
申请日期 |
1995.04.26 |
申请人 |
HOSOKAWA BEPEX CORPORATION |
发明人 |
KIMBALL, GREGORY J.;PIKUS, ILYA |
分类号 |
B29B9/16;C08G63/80;C08G63/88;(IPC1-7):C08F6/00 |
主分类号 |
B29B9/16 |
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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