公开(公告)号：US20220389225A1

公开(公告)日：2022-12-08

申请号：US17752884

申请日：2022-05-25

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： YI-HSUEH HO ,  MENG-YING TSAI

IPC: C08L101/12

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.

公开(公告)号：US20220356306A1

公开(公告)日：2022-11-10

申请号：US17700541

申请日：2022-03-22

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： YI-HSUEH HO ,  MENG-YING TSAI

IPC: C08G73/10 ,  C08J5/18 ,  C08K3/04 ,  C08J3/14

Abstract: A black matte polyimide film is provided, the black matte polyimide film includes polyimide, carbon black and polyimide fine powder. The polyimide component is obtained by polymerization of a dianhydride and a diamine, followed by chemical cyclization, in which the dianhydride is pyromellitic dianhydride, and the diamine comprises 5˜15 mol % of p-phenylenediamine and 95˜85 mol % of 4,4′-diaminodiphenyl ether; the carbon black is present in an amount of 2 to 8 wt % of the polyimide film; and the polyimide fine powder is present in an amount of 5 to 10 wt % of the polyimide film, such that the black matte polyimide film has a glossiness between 5 and 30 and a thermal expansion coefficient of less than 41 ppm/° C.

公开(公告)号：US20210102034A1

公开(公告)日：2021-04-08

申请号：US17009802

申请日：2020-09-02

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： YI-HSUEH HO ,  YUN-HSIANG CHANG ,  YI-CHIA HUANG ,  PAUL S.C. WU

IPC: C08J5/18 ,  C08G73/10 ,  C09D179/08

Abstract: A manufacturing method of a continuous transparent polyimide film for a display includes the following steps providing a roll-to-roll polyimide film; providing a polyimide precursor, which is coated on the polyimide film; and baking the polyimide precursor at a baking temperature that is at least 20° C. higher than a glass transition temperature of the transparent polyimide film, such that the transparent polyimide film has an optical transmittance of greater than 85%, a chromaticity (b*) of less than 2, and a standard deviation of three axial refractive indices of the transparent polyimide film is less than 0.0012. Thus, the transparent polyimide film with reduced light leakage can be obtained.

公开(公告)号：US20240076451A1

公开(公告)日：2024-03-07

申请号：US18457370

申请日：2023-08-29

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： YUNG-CHU CHUANG ,  YI-HSUEH HO ,  TING-XUAN DENG

IPC: C08G73/10 ,  C08K3/04 ,  C08K5/18 ,  C08K7/26

CPC classification number: C08G73/1067 ,  C08G73/1032 ,  C08K3/04 ,  C08K5/18 ,  C08K7/26 ,  C08J2379/08

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.

公开(公告)号：US20230203309A1

公开(公告)日：2023-06-29

申请号：US17979005

申请日：2022-11-02

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： CHUN-HUA LI ,  YI-HSUEH HO

IPC: C08L79/08

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.

公开(公告)号：US20220389177A1

公开(公告)日：2022-12-08

申请号：US17752880

申请日：2022-05-25

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： YI-HSUEH HO ,  MENG-YING TSAI

IPC: C08J5/18 ,  C09K19/38 ,  C09K19/52 ,  H05K1/03

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.