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    MICROPOROUS POLYPROPYLENE FILM AND MANUFACTURING METHOD FOR SAME
    11.
    发明专利
    MICROPOROUS POLYPROPYLENE FILM AND MANUFACTURING METHOD FOR SAME 未知

    公开(公告)号：CA2771872A1

    公开(公告)日：2005-11-03

    申请号：CA2771872

    申请日：2005-04-21

    Applicant: TORAY INDUSTRIES

    Inventor： MASUDA JUN ICHI ,  OHKURA MASATOSHI ,  TANAKA SHIGERU ,  MORITA REIKO ,  FUKUSHIMA HAJIME

    IPC: B29C39/00 ,  B29D7/01 ,  C08J5/18 ,  C08J9/00 ,  C08L23/12

    Abstract: The present invention provides a microporous polypropylene film where film formability is improved in accordance with a .beta.-crystal technique which allows microporous films to be continuously manufactured at low cost. In addition, a microporous polypropylene film of which the specific gravity is further reduced is provided. Furthermore, a microporous polypropylene film with a significantly high permeability is provided. In addition, manufacturing methods for these microporous polypropylene films are provided. As for the means for solving the above, a microporous polypropylene film comprising a polypropylene with the Trouton ratio of not less than 30, a microporous polypropylene film with the Trouton ratio of not less than 6, a microporous polypropylene film comprising a polypropylene having a long chain branch in the main chain, a microporous polypropylene film comprising a polypropylene where the relationship between the melt strength (MS) and the melt flow rate (MFR), measured at 230 °C , can be represented by the following formula (1) and/or the melt strength (MS) , measured at 230 °C , is less than 5 cN and the relationship between the MS and the melt flow rate (MFR) can be represented by the following formula (2), or a microporous polypropylene film where the following formula (3) is satisfied in the in-plane intensity distribution profile scanned in the direction of an azimuthal angle for (-113) plane in accordance with X-ray diffraction method, and which has a .beta.-crystal activity and a specific gravity of 0.1 to 0.6 and/or a porosity of 30 % to 95 %. log (MS) > -0.61 log (MFR) + 0.82 (1) log (MS) > -0.9 log (MFR) + 0.6 (2) 0.5

    12.
    发明专利
    未知

    公开(公告)号：DE602004020802D1

    公开(公告)日：2009-06-04

    申请号：DE602004020802

    申请日：2004-12-21

    Applicant: TORAY INDUSTRIES

    Inventor： TANAKA SHIGERU ,  OHKURA MASATOSHI ,  MASUDA JUN ICHI ,  TONEGAWA KOUICHI ,  MORITA REIKO

    IPC: B41M5/00 ,  B32B27/32 ,  B41M5/40 ,  B41M5/44 ,  C08J5/18

    Abstract: [Problem to be Solved] To provide a biaxially oriented white film for thermal transfer recording which has low specific gravity required as a thermal transfer film, high whiteness and cushion factor, and is excellent in crease resistance, and has a high-level compatibility between high sensitivity and productivity when used as a substrate of a receiving sheet, and a receiving sheet for thermal transfer recording using the same. [Means for Solving the Problem] (1) A biaxially oriented white polypropylene film for thermal transfer recording characterized in that it is a film comprising of polypropylene resin of which ²-crystal ratio is 30% or more and melting temperature is 140 to 172°C, which has a substantially non-nucleus voids, a void ratio of 30 to 80% and a sum of strengths of longitudinal direction and of transverse direction of the film at 2% elongation (F2 value) being in the range of 10 to 70 MPa and a surface glossiness being in the range of 10 to 145 % (the first configuration). (2) A biaxially oriented white polypropylene film for thermal transfer recording characterized in that a skin layer (B layer) of which surface glossiness is 10 to 145 % is laminated to at least one side of a core layer (A layer) of polypropylene resin of which ²-crystal ratio is 30% or more, melting temperature is 140 to 172°C, which has a substantially non-nucleus voids, a void ratio of 30 to 80%, and a sum of the strengths of longitudinal direction and of transverse direction of the film at 2% elongation (F2 value) being in the range of 10 to 70 MPa (the second configuration). (3) A biaxially oriented white polypropylene film for thermal transfer recording in which a skin layer (B layer) of which surface glossiness is in the range of 10 - 145 % is laminated to at least one side of a core layer (A layer) characterized in that a sum of strengths of longitudinal direction and of transverse direction of the film at 2% elongation (F2 value) is in the range of 30 to 100 MPa and that the film has ²-crystal activity (the third configuration). (4) A biaxially oriented white polypropylene film for thermal transfer recording which is a film in which a skin layer (B layer) having a half-crystallization time of 60 seconds or less and a surface glossiness of 30 to 145 % is laminated at least on one side of a core layer (A layer) which consists of polypropylene resin having a substantially non-nucleus void, characterized in that it is a film of a specific gravity of 0.3 to 0.7 and has ²-crystal activity (the fourth configuration).

    LAMINATED POLYESTER FILM FOR METAL LAMINATE
    14.
    发明专利
    LAMINATED POLYESTER FILM FOR METAL LAMINATE 审中-公开

    公开(公告)号：JP2004009599A

    公开(公告)日：2004-01-15

    申请号：JP2002167423

    申请日：2002-06-07

    Applicant: TORAY INDUSTRIES

    Inventor： MORITA REIKO ,  TANAKA HIROYUKI ,  MATSUI RYOSUKE

    IPC: B32B15/09 ,  B32B15/08

    Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film for a metal laminate excellent in heat resistance, lamination properties, impact resistance and molding processability and suitable for a metal can, in particular an aluminum can. SOLUTION: The laminated polyester film is obtained by laminating a layer (B-layer) comprising polyester 3 with a melting point of 170-250°C on at least one surface of a polyester layer (A-layer) comprising a mixture of 70-20 wt.% of polyester with a melting point of 246-270°C and 30-80 wt.% of polyester with a melting point of 180-240°C. The thickness ratio of the B-layer in all of the layers is 1-10%. COPYRIGHT: (C)2004,JPO

    LAMINATED WHITE POLYESTER FILM FOR METAL LAMINATE
    15.
    发明专利
    LAMINATED WHITE POLYESTER FILM FOR METAL LAMINATE 审中-公开

    公开(公告)号：JP2003127307A

    公开(公告)日：2003-05-08

    申请号：JP2001323341

    申请日：2001-10-22

    Applicant: TORAY INDUSTRIES

    Inventor： MORITA REIKO ,  MATSUI RYOSUKE ,  TANAKA HIROYUKI

    IPC: B32B27/36 ,  B32B15/08 ,  B32B15/09

    Abstract: PROBLEM TO BE SOLVED: To provide a laminated white polyester film for metal laminate which is excellent in laminating properties, wear resistance and molding processability, and also has a beautiful surface after being bonded with metal plates, particularly an aluminum plate and molded, and is suitable for metal cans, particularly an aluminum can. SOLUTION: The polyester film is obtained by laminating a layer (B-layer) made of polyester 3 using ethylene terephthalate and/or butylene terephthalate as a main repeating unit on at least one surface of a polyester layer (A-layer) which is prepared by mixing 80 to 20 wt.% of polyester 1 using ethylene terephthalate of a melting point at 246 to 270 deg.C as a main repeating unit and 20 to 80 wt.% of polyester 2 using butylene terephthalate of a melting point at 180 to 240 deg.C as a main repeating unit. The film has 30 to 55 mmol/kg of COOH terminal group amount and the laminated white polyester film for metal laminate is prepared by mixing the A-layer and/or the B-layer with a white pigment.

    LAMINATED POLYESTER FILM FOR MOLDING
    16.
    发明专利
    LAMINATED POLYESTER FILM FOR MOLDING 失效

    公开(公告)号：JP2002337297A

    公开(公告)日：2002-11-27

    申请号：JP2001147468

    申请日：2001-05-17

    Applicant: TORAY INDUSTRIES

    Inventor： MORITA REIKO ,  YAMANE NOBUHISA ,  YOSHIDA MINORU

    IPC: C08J5/18 ,  B32B27/36

    Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film for molding excellent not only in environmental properties but also in moldability and adhesiveness. SOLUTION: The laminated polyester film for molding is constituted by laminating a resin layer (B-layer) with a quantity of heat of fusion of 20 J/g or less on at least the single surface of a polyester resin layer (A-layer) consisting of at least two kinds of glycol components selected from 2-4C glycol components and a dicarboxylic acid component.

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