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专利名称:White biaxially stretched polyester film with
high cyclohexane dimethanol content and aprimary and secondary dicarboxylic acidcontent and method for producing sameand use of same
发明人:KLIESCH, HOLGER, DR.,KLEIN, OLIVER,
DR.,KONRAD, MATTHIAS, DR.,KUHMANN,BODO
申请号:EP12000291.0申请日:20120119公开号:EP2482335A2公开日:20120801
摘要:White, biaxially stretched film (1) comprises a polyester comprising (a) diolcomponent (80 mole-%) made of at least 1,4-cyclohexanedimethanol, and (b) dicarboxylicacid component (80 mole-%) made of at least one benzene dicarboxylic acid and/or atleast one naphthalene dicarboxylic acid. The dicarboxylic acid component is made of (i) amain dicarboxylic acid component (55 mole-%) comprising two dicarboxylic acids (2,6-naphthalenedicarboxylic acid and terephthalic acid) and (ii) a secondary dicarboxylic acid(18 mole-%). White, biaxially stretched film (1) comprises a polyester comprising (a) diolcomponent (80 mole-%) made of at least 1,4-cyclohexanedimethanol, and (b) dicarboxylicacid component (80 mole-%) made of at least one benzene dicarboxylic acid and/or atleast one naphthalene dicarboxylic acid. The dicarboxylic acid component is made from (i)a main dicarboxylic acid component (55 mole-%) comprising two dicarboxylic acid (2,6-
naphthalenedicarboxylic acid and terephthalic acid) and (ii) a secondary dicarboxylic acid(18 mole-%), where the secondary-dicarboxylic acid component is different from the maindicarboxylic acid component. An independent claim is also included for producing thefilm, comprising (A) extruding at least one polymer by a flat die extrusion, (B) removingand quenching for solidification on at least one roll as an amorphous precursor film, (C)reheating the precursor film and stretching biaxially (oriented), and (D) thermo-fixing androlling the biaxially stretched film.
申请人:MITSUBISHI POLYESTER FILM GMBH
地址:Kasteler Strasse 45 65203 Wiesbaden DE
国籍:DE
代理机构:Schweitzer, Klaus
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