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    Polyimide solution and method of preparing same
    1.
    发明授权
    Polyimide solution and method of preparing same 失效
    聚酰亚胺溶液及其制备方法

    公开(公告)号：US3673145A

    公开(公告)日：1972-06-27

    申请号：US3673145D

    申请日：1969-09-02

    Applicant: TORAY INDUSTRIES

    Inventor： MINAMI MUNEYOSHI ,  TANIGUCHI MASAHARU ,  TSUTSOMI TADAO ,  MURAKAMI MASAKAZO ,  YOSHII TOSHIYA

    IPC: C08J3/09 ,  C08G51/28 ,  C08G51/44

    CPC classification number: C08J3/091 ,  C08J2379/08

    Abstract: Novel polyimide solutions are provided which are obtained by reacting 1,2,3,4-butane tetracarboxylic acid or a functional derivative thereof with an organic diamine for example an aromatic diamine such as diaminodiphenyl ether in certain reaction solvents for example phenols, nitrobenzenes, pyridines, quinolines, N-alkyl lactams and cyanobenzenes at a temperature of from 100* C. to the boiling point of the reaction mixture until a polyimide solution is obtained having an imidization ratio of 5098 percent is obtained. The products thus obtained can be employed as varnishes, to make film coating for electric cable, as adhesives or blended with pigments and the like to make pains.

    Abstract translation: 提供了通过使1,2,3,4-丁烷四羧酸或其官能衍生物与有机二胺例如二氨基二苯醚等芳族二胺在某些反应溶剂中反应而得到的新型聚酰亚胺溶液，例如苯酚，硝基苯，吡啶 ，喹啉，N-烷基内酰胺和氰基苯，在100℃至反应混合物的沸点，直至获得具有50-98％亚酰胺化率的聚酰亚胺溶液。 由此获得的产品可以用作清漆，制成电缆的薄膜涂层，作为粘合剂或与颜料等混合以产生疼痛。

    Finger-tearable adhesive tape
    2.
    发明授权
    Finger-tearable adhesive tape 失效
    指纹胶带

    公开(公告)号：US3887745A

    公开(公告)日：1975-06-03

    申请号：US38702373

    申请日：1973-08-09

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHII TOSHIYA ,  SUZUKI MASARU

    IPC: C09J7/02 ,  B32B7/00

    CPC classification number: B32B27/08 ,  B32B2250/03 ,  B32B2323/10 ,  B32B2405/00 ,  C09J7/29 ,  C09J2201/162 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/31913

    Abstract: This invention pertains to an adhesive tape, the base component of which is comprised of a biaxially oriented film of a propylene polymer and a transversely oriented film of a propylene polymer, the melting point of the transversely oriented film being 0.5* 10*C higher than that of the biaxially oriented film and the total thickness of the transversely oriented film being 1.2 - 5.0 times greater than that of the biaxially oriented film.

    Abstract translation: 本发明涉及一种胶带，其基本成分由丙烯聚合物的双轴取向膜和丙烯聚合物的横向取向膜组成，横向取向膜的熔点为0.5〜10℃ 而双轴取向膜的总厚度比双轴取向膜的厚度的1.2〜5.0倍。

    4.
    发明专利
    未知

    公开(公告)号：DE3785204D1

    公开(公告)日：1993-05-06

    申请号：DE3785204

    申请日：1987-09-02

    Applicant: TORAY INDUSTRIES

    Inventor： AOKI SEIZO ,  TSUNASHIMA KENJI ,  YOSHII TOSHIYA ,  NAKAHARA YASUJI ,  SUMIYA TAKASHI ,  MIMURA TAKASHI

    IPC: C08J5/18 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  B41N1/24

    Abstract: A film for thermal porous printing paper and a thermal porous printing paper composed of the film and a porous support are disclosed. The film comprises a biaxially oriented polyester film having a crystal melting energy, Delta Hu, of 3 to 11 cal/g and showing a difference between the crystal melting completion temperature and crystal melting initiation temperature, delta Tm, of 50 to 100 deg.C. Hence it has such a high heat sensitivity that characters and solid images are distinctly recorded with substantially no unevenness in thickness or density of the images. In addition, since it eliminates the necessity of reducing the thickness of the film.

    6.
    发明专利
    未知

    公开(公告)号：DE2339892A1

    公开(公告)日：1974-04-04

    申请号：DE2339892

    申请日：1973-08-07

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHII TOSHIYA ,  SUZUKI MASARU

    IPC: C09J7/02

    Abstract: This invention pertains to an adhesive tape, the base component of which is comprised of a biaxially oriented film of a propylene polymer and a transversely oriented film of a propylene polymer, the melting point of the transversely oriented film being 0.5 DEG - 10 DEG C higher than that of the biaxially oriented film and the total thickness of the transversely oriented film being 1.2 - 5.0 times greater than that of the biaxially oriented film.

    POLYESTER FILM AND MAGNETIC RECORDING MEDIUM MADE THEREFROM
    7.
    发明专利
    POLYESTER FILM AND MAGNETIC RECORDING MEDIUM MADE THEREFROM 未知

    公开(公告)号：DE3461503D1

    公开(公告)日：1987-01-15

    申请号：DE3461503

    申请日：1984-06-27

    Applicant: TORAY INDUSTRIES

    Inventor： KAWAKAMI KEN-ICHI ,  YOSHII TOSHIYA ,  SUZUKI MASARU ,  OKASAKA HOTSUMA

    IPC: G11B5/73 ,  G11B5/704

    Abstract: An oriented polyester film is provided according to the present invention which contains, per 100 parts by weight of a polyester, (A) 0.005-2 parts by weight of fine particles having average size of 0.05-3 mu m, and (B) 0.005-2 parts by weight of at least one compound selected from the group consisting of high aliphatic monocarboxylic acids having 10-33 carbon atoms and esters thereof. Herein also disclosed is a composite polyester film which comprises a resin layer of copolyester or copolyester ether containing an ester-forming alkali metal salt of sulfonic acid compound, the layer being laminated on at least one side of the oriented polyester film as a substrate. The present invention further provides a magnetic recording medium comprising the oriented polyester film or the composite polyester film as a base. The novel films of the present invention have a surface satisfying three properties: flatness, slipperiness and adhesion, which are considered unable to be attained with a conventional polyester film. Furthermore, a magnetic recording medium having good electromagnetic conversion and running properties can be obtained from the films in the invention.

    MULTI-LAYERED POLYOLEFIN LAMINATED FILM
    8.
    发明专利
    MULTI-LAYERED POLYOLEFIN LAMINATED FILM 未知

    公开(公告)号：DE3169605D1

    公开(公告)日：1985-05-02

    申请号：DE3169605

    申请日：1981-12-04

    Applicant: TORAY INDUSTRIES

    Inventor： TSUNASHIMA KENJI ,  YOSHII TOSHIYA ,  FUKUYAMA TAKEO

    IPC: B32B27/32 ,  C09J7/02

    Abstract: A three-layered laminated film consisting essentially of (A) a center layer consisting of a crystalline low molecular weight polyolefin having an intrinsic viscosity of 0.5 to 1.4 and (B) two surface layers disposed on both sides of the center layer and each consisting of a crystalline polyolefin (b) having a melting point higher than that of the crystalline low molecular weight polyolefin (a), whereby the thickness of the center layer (A) accounts for 30 to 98 %, especially 50 to 85 %, of the total thickness of the laminated film. The invention also relates to applications of the laminated film.The laminated film of the invention has excellent finger-tearability and high toughness but little tendency to curl, to whiten when torn, to get turbid and fibrillated, and so forth. The laminated film is effectively used as an adhesive tape or other applications.

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