STABILIZED POLYPHENYLENE SULFIDE AND METHOD FOR PRODUCING SAME

    公开(公告)号:DE3170547D1

    公开(公告)日:1985-06-20

    申请号:DE3170547

    申请日:1981-11-24

    Abstract: A stabilized polyphenylene sulfide is provided which comprises a recurring unit wherein the average n between foreign units is greater than about 5, and about 0.05 to about 10 mole % per phenylene sulfide unit of an aromatic constituent chemically bonded with said polyphenylene sulfide chain, said aromatic constituent containing an electron attractive group selected from the group consisting of -SO2-, -CO-, -NO2, -SO3R, -COOR, wherein R is H, lower aliphatic hydrocarbon groups, aromatic hydrocarbon groups or alkaline metals, and -CONH-, and said stabilized polyphenylene sulfide has a melting point in the range of about 250 DEG C. to about 350 DEG C. Also provided is a method for preparing stabilized polyphenylene sulfide comprising preparing a polyphenylene sulfide consisting mainly of a recurring unit wherein the degree of polymerization of said recurring unit is greater than about 20, and reacting said polyphenylene sulfide with about 0.05 to about 20 mole % per said phenylene sulfide unit of a halogenated aromatic compound having an electron attractive group.

    Polyphenylene sulphide film material

    公开(公告)号:DE3107562A1

    公开(公告)日:1982-10-14

    申请号:DE3107562

    申请日:1981-02-27

    Abstract: A film material essentially comprising a high-molecular-weight poly-p-phenyl sulphide, where, on extraction with chloroform, the amount of extract therefrom is less than 1.5% by weight of the total weight before extraction, and its crystallinity index is greater than 2.5 and less than 8.0, its crystal size is greater than 5 x 10 cm and less than 10 x 10 cm, and its orientation factors, measured perpendicular to the film plane and in the transverse and longitudinal directions, are in each case greater than 0.70, measured by wide-angle X-ray diffraction. The film material is particularly suitable for use for printed circuits, in which case it is coated with a thin metal foil.

    3.
    发明专利
    未知

    公开(公告)号:DE2916841A1

    公开(公告)日:1979-11-08

    申请号:DE2916841

    申请日:1979-04-26

    Abstract: A biaxially oriented poly-p-phenylene sulfide film comprising recurring units of the formula a melt viscosity of more than 100 poise and less than 600,000 poise at a shear rate of 200 sec-1 and at 300 DEG C., and a specific gravity of which is more than 1.330 and less than 1.400. The film has improved mechanical properties, thermal dimensional stability and high temperature durability. Typical applications of the film are as electrical insulation, capacitor, magnetic recording medium, packaging material, and so forth.

    5.
    发明专利
    未知

    公开(公告)号:DE68922699D1

    公开(公告)日:1995-06-22

    申请号:DE68922699

    申请日:1989-03-07

    Abstract: A polyphenylene sulfide film formed from a resin composition mainly composed of polyphenylene sulfide, characterized in that fine particles of 0.05 to 3 mu m in the mean particle size are dispersed in the film and a single particle index of said fine particle is 0.5 or more. This film is useful as dielectric film for film capacitors having stabilized initial properties by virtue of its excellent sliding properties and largely reduced electrical insulation defects. Furthermore, it is also useful as the base film for a magnetic recording medium having excellent electromagnetic transduction properties and reduced dropout by virtue of its excellent sliding properties and surface smoothness.

    7.
    发明专利
    未知

    公开(公告)号:FR2433029A1

    公开(公告)日:1980-03-07

    申请号:FR7910940

    申请日:1979-04-27

    Abstract: A biaxially oriented poly-p-phenylene sulfide film comprising recurring units of the formula a melt viscosity of more than 100 poise and less than 600,000 poise at a shear rate of 200 sec-1 and at 300 DEG C., and a specific gravity of which is more than 1.330 and less than 1.400. The film has improved mechanical properties, thermal dimensional stability and high temperature durability. Typical applications of the film are as electrical insulation, capacitor, magnetic recording medium, packaging material, and so forth.

    8.
    发明专利
    未知

    公开(公告)号:DE68922699T2

    公开(公告)日:1996-02-22

    申请号:DE68922699

    申请日:1989-03-07

    Abstract: A polyphenylene sulfide film formed from a resin composition mainly composed of polyphenylene sulfide, characterized in that fine particles of 0.05 to 3 mu m in the mean particle size are dispersed in the film and a single particle index of said fine particle is 0.5 or more. This film is useful as dielectric film for film capacitors having stabilized initial properties by virtue of its excellent sliding properties and largely reduced electrical insulation defects. Furthermore, it is also useful as the base film for a magnetic recording medium having excellent electromagnetic transduction properties and reduced dropout by virtue of its excellent sliding properties and surface smoothness.

    BIAXIALLY ORIENTED POLYPHENYLENE SULFIDE FILM

    公开(公告)号:JPH06322150A

    公开(公告)日:1994-11-22

    申请号:JP10699593

    申请日:1993-05-07

    Abstract: PURPOSE:To obtain the subject film, containing a specific amount of high- melting polyphenylene sulfide nuclei, excellent in abrasion resistance, surface smoothness and slipperiness and useful as a material for dielectrics, electrical insulators, etc., for capacitors. CONSTITUTION:The objective film comprises 1000-1000000nuclei/g film of a high-melting polyphenylene sulfide, containing at least >=90mol% recurring unit composed of the p-phenylene sulfide and having 1-3mum diameter without melting at 300 deg.C.

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