发明名称 |
Low temperature heat-sealable polyester film and method for producing the same |
摘要 |
The present invention provides a heat-sealable polyester composition having an amorphous processing window ranging from a Tg in the range of about 40° C. to about 70° C., to a Tcg in the range of about 70° C. to about 150° C. The composition preferably contains a mixture of poly(ethylene terephthalate) homopolymer or copolymer and poly(trimethylene terephthalate) homopolymer or copolymer, either as a physical blend or as a copolyester oligomer or polymer prepared from the respective monomers. The resulting composition is heat-sealable at low temperatures, retains barrier properties and is non-flavor-scalping.
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申请公布号 |
US6663977(B2) |
申请公布日期 |
2003.12.16 |
申请号 |
US20010799442 |
申请日期 |
2001.03.05 |
申请人 |
E.I. DU PONT DE NUMOURS AND COMPANY |
发明人 |
KURIAN JOSEPH V.;HAHM DIANE M.;SMILLIE BENJAMIN A. |
分类号 |
B65D65/02;B32B27/36;C08L67/02;(IPC1-7):B32B27/36;C08F18/14;C08G63/16;C08G63/183 |
主分类号 |
B65D65/02 |
代理机构 |
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主权项 |
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