发明名称 |
Method to reduce deposits of terephthalic acid on cooling rolls during sheet extrusion of amorphous polyethylene terephthalate |
摘要 |
Physically blending small amounts of polycarbonate resin into polyethylene terephthalate resin which is to be extruded and cooled to form an unoriented amorphous sheet reduces deposits of terephthalic acid on the cooling rolls during sheet extrusion.
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申请公布号 |
US4175147(A) |
申请公布日期 |
1979.11.20 |
申请号 |
US19760729739 |
申请日期 |
1976.10.05 |
申请人 |
ALLIED CHEMICAL CORP |
发明人 |
BOLLEN, PHILIP S;DEGRASSI, ALFIERI |
分类号 |
C08L67/00;B29B7/00;B29C31/00;B29C41/26;B29C47/00;B29C47/88;(IPC1-7):C09D5/16;C08G39/10 |
主分类号 |
C08L67/00 |
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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