BLACK POLYIMIDE FILM AND MANUFACTURING METHOD THEREOF

Title:

BLACK POLYIMIDE FILM AND MANUFACTURING METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2023/243967

Kind Code:

A1

Abstract:

Provided is a black polyimide film formed by imidizing a polyamic acid obtained from a dianhydride monomer and a diamine monomer, comprising: a black pigment containing bituminous coal and lactam black.

Inventors:

YEO MOON JIN (KR)
JEON JIN SEOK (KR)
WON DONG YOUNG (KR)

Application Number:

PCT/KR2023/008058

Publication Date:

December 21, 2023

Filing Date:

June 12, 2023

Export Citation:

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Assignee:

PI ADVANCED MAT CO LTD (KR)

International Classes:

C08J5/18; C08G73/10; C08K3/04; C08L79/08

Domestic Patent References:

WO2020017692A1

2020-01-23

Foreign References:

US20180346720A1	2018-12-06
US20180105657A1	2018-04-19
US4476265A	1984-10-09
CN111154125A	2020-05-15

Attorney, Agent or Firm:

KIM, Kyeongkyo et al. (KR)

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