发明授权
EP1901871B1 PREPARATION OF TRANSPARENT, MULTILAYERED ARTICLES CONTAINING POLYESTERS COMPRISING A CYCLOBUTANEDIOL AND HOMOGENENEOUS POLYAMIDE BLENDS
有权
生产透明,多层制品,其包括CYCLOBUTANDIOLHALTIGE聚酯和尼龙均质混合气的
- 专利标题: PREPARATION OF TRANSPARENT, MULTILAYERED ARTICLES CONTAINING POLYESTERS COMPRISING A CYCLOBUTANEDIOL AND HOMOGENENEOUS POLYAMIDE BLENDS
- 专利标题(中): 生产透明,多层制品,其包括CYCLOBUTANDIOLHALTIGE聚酯和尼龙均质混合气的
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申请号: EP06749031.8申请日: 2006-03-30
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公开(公告)号: EP1901871B1公开(公告)日: 2008-11-12
- 发明人: HALE, Wesley, Raymond , PECORINI, Thomas, Joseph , STEWART, Mark, Edward , ROGERS, Martin, Emerson , GILLIAM, Spencer, Allen , CLIFFTON, Michael, Duane , CRAWFORD, Emmett, Dudley , PORTER, David, Scott , CONNELL, Gary, Wayne
- 申请人: EASTMAN CHEMICAL COMPANY
- 申请人地址: 100 North Eastman Road Kingsport TN 37660 US
- 专利权人: EASTMAN CHEMICAL COMPANY
- 当前专利权人: EASTMAN CHEMICAL COMPANY
- 当前专利权人地址: 100 North Eastman Road Kingsport TN 37660 US
- 代理机构: Ricker, Mathias
- 优先权: US691567P 20050617; US731389P 20051028; US731454P 20051028; US738869P 20051122; US739058P 20051122; US750547P 20051215; US750682P 20051215; US750692P 20051215; US750693P 20051215; US363417 20060227; US363374 20060227; US363375 20060227; US363418 20060227; US363481 20060227
- 国际公布: WO2007001561 20070104
- 主分类号: B23B27/00
- IPC分类号: B23B27/00 ; C08L67/02 ; C08L77/06
摘要:
Disclosed is a process for the preparation of multi layered, shaped articles having high transparency and low haze and in which at least one layer contains at least one polyester comprising 2,2,4,4-tetramethyl-1 ,3-cyclobutanediol and a separate layer which contains a transamidized, homogeneous blend of a least two polyamides. The polyester component and the polyamide component have refractive indices which differ by about 0.006 to about -0.0006. The small difference in the refractive indices enable the incorporation of regrind into one or more of the layers of the article while maintaining high clarity. These articles can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into one or more layers to impart oxygen-scavenging properties.
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