POLYMER FILM AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20220389225A1

    公开(公告)日:2022-12-08

    申请号:US17752884

    申请日:2022-05-25

    Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer; wherein the polymer film has a thermal expansion coefficient between 0 and 60 ppm/t of 50° C. to 200° C., a water absorption rate less than 0.5%, a dielectric loss tangent of Df less than 0.005 at a frequency of 10 GHz, and a storage elastic modulus greater than 0.1 GPa at 310° C. A method for manufacturing the polymer film, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder; providing a liquid crystal polymer glue; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film.

    POLYIMIDE FILM AND FABRICATION METHOD THEREOF
    3.
    发明申请
    POLYIMIDE FILM AND FABRICATION METHOD THEREOF 有权
    聚酰亚胺膜及其制造方法

    公开(公告)号:US20150018484A1

    公开(公告)日:2015-01-15

    申请号:US14249702

    申请日:2014-04-10

    Abstract: A polyimide film includes a polyimide polymer forming a main molecular structure of the polyimide film, and polyimide particles present in the polyimide film at a weight ratio between about 15 wt % and 30 wt % of a total weight of the polyimide film, the polyimide particles having an average diameter between about 3 μm and 8 μm. The polyimide film can have a 60° gloss value equal to or smaller than 10, a haze equal to or higher than 90%, and a Young's modulus equal to or higher than 280 kgf/mm2. In some embodiments, methods of fabricating the polyimide film are also described.

    Abstract translation: 聚酰亚胺膜包括形成聚酰亚胺膜的主要分子结构的聚酰亚胺聚合物和以聚酰亚胺膜的总重量的约15重量%至30重量%的重量比存在于聚酰亚胺膜中的聚酰亚胺颗粒,聚酰亚胺颗粒 平均直径约3μm至8μm。 聚酰亚胺膜可以具有等于或小于10的60°光泽值,雾度等于或高于90%,杨氏模量等于或高于280kgf / mm2。 在一些实施例中,还描述了制造聚酰亚胺膜的方法。

    White polymide film and manufacture thereof
    4.
    发明授权
    White polymide film and manufacture thereof 有权
    白色聚酰亚胺薄膜及其制造

    公开(公告)号:US08461257B2

    公开(公告)日:2013-06-11

    申请号:US13599550

    申请日:2012-08-30

    CPC classification number: C08G73/1039 C08J5/18 C08J2379/08 C08L79/08

    Abstract: A process of manufacturing a white polyimide film comprising performing condensation polymerization of monomers comprising diamine and dianhydride components to obtain a solution; adding a dehydrant, a catalyst and a coloration filler into the solution to obtain a precursor solution; coating a layer of the precursor solution on a support; and baking the coated layer of the precursor solution to form a white polyimide film. The diamine component can include 2,2′-bis(trifluoromethyl)benzidine, and the dianhydride component can include 3,3′,4,4′-biphenyltetracarboxylic dianhydride and 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride. The coloration filler can include TiO2, Al2O3, CaCO3, CaSO4, SiO2, BN, AlN and clay.

    Abstract translation: 一种制造白色聚酰亚胺膜的方法,包括进行包含二胺和二酐组分的单体的缩聚以获得溶液; 向溶液中加入脱水剂,催化剂和着色填料,得到前体溶液; 将一层前体溶液涂覆在载体上; 并烘烤前体溶液的涂层以形成白色聚酰亚胺膜。 二胺组分可包括2,2'-双(三氟甲基)联苯胺,二酐组分可包括3,3',4,4'-联苯四羧酸二酐和2,2-双[4-(3,4-二羧基苯氧基) 苯基]丙烷二酐。 着色填料可以包括TiO2,Al2O3,CaCO3,CaSO4,SiO2,BN,AlN和粘土。

    BLACK MATTE POLYIMIDE FILM
    5.
    发明公开

    公开(公告)号:US20240076451A1

    公开(公告)日:2024-03-07

    申请号:US18457370

    申请日:2023-08-29

    Abstract: Provide a black matte polyimide film, including polyimide in an amount from 87 to 97 wt % of the black matte polyimide film, in which aromatic dianhydride and aromatic diamine are polymerized to form a polyimide precursor, and the polyimide precursor is chemically cyclized to form the polyimide, wherein the aromatic dianhydride at least includes 3,3′,4,4′-biphenyltetracarboxylic dianhydride in an amount being no less than 20 mol % of the aromatic dianhydride, and the aromatic diamine at least includes p-phenylenediamine in an amount from 5 to 40 mol % of the aromatic diamine; carbon black in an amount from 2 to 8 wt % of the black matte polyimide film; and silicon dioxide powder having a particle size between 1 and 10 μm and a density less than 1 g/cm3 and being in an amount from 1 to 5 wt % of the polyimide film.

    ALKALI-RESISTANT BLACK MATTE POLYIMIDE FILM
    7.
    发明公开

    公开(公告)号:US20230203309A1

    公开(公告)日:2023-06-29

    申请号:US17979005

    申请日:2022-11-02

    CPC classification number: C08L79/08

    Abstract: Provides an alkali-resistant black matte polyimide film, including polyimide in an amount from 75 to 93 wt % of the alkali-resistant black matte polyimide film, in which dianhydride and diamine are polymerized to form a polyimide precursor, and the polyimide precursor is chemically cyclized to form the polyimide, wherein the dianhydride includes pyromellitic dianhydride (PMDA) and 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA), and the diamine includes p-Phenylenediamine (PDA) and 4,4′-oxydianiline (ODA), and wherein the BPDA is an amount from 2 to 35 wt % of the dianhydride, and the PDA is in an amount from 10 to 70 wt % of the diamine; carbon black in an amount from 2 to 8 wt % of the alkali-resistant black matte polyimide film; and polyimide micropowder having a particle size between 2 and 10 μm and being in an amount from 5 to 10 wt % of the alkali-resistant black matte polyimide film.

    Polymer film and method for manufacturing the same

    公开(公告)号:US11597880B2

    公开(公告)日:2023-03-07

    申请号:US17752880

    申请日:2022-05-25

    Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer, accounting for 5 wt % or more of the polymer film. A method for manufacturing the polymer film is also provided, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder, a particle size of the liquid crystal polymer powder is 0.1 um to 20 um; providing a liquid crystal polymer glue, a solid content of which is greater than 3 wt %; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film, and the gel film is baked at a temperature of 300° C. to form a polymer film.

    POLYMER FILM AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20220389177A1

    公开(公告)日:2022-12-08

    申请号:US17752880

    申请日:2022-05-25

    Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer, accounting for 5 wt % or more of the polymer film. A method for manufacturing the polymer film is also provided, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder, a particle size of the liquid crystal polymer powder is 0.1 um to 20 um; providing a liquid crystal polymer glue, a solid content of which is greater than 3 wt %; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film, and the gel film is baked at a temperature of 300° C. to form a polymer film.

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