	US 12,404,380 B2
	High-modulus black matte polyimide film
Chun-Hua Li, Hsinchu Hsien (TW); and Jia-Hao Wu, Hsinchu Hsien (TW)
Assigned to TAIMIDE TECHNOLOGY INCORPORATION, Hsinchu Hsien (TW)
Filed by TAIMIDE TECHNOLOGY INCORPORATION, Hsinchu Hsien (TW)
Filed on Jun. 16, 2023, as Appl. No. 18/336,050.
Claims priority of application No. 111123233 (TW), filed on Jun. 22, 2022.
Prior Publication US 2023/0416480 A1, Dec. 28, 2023
Int. Cl. C08J 5/18 (2006.01); C08G 73/10 (2006.01); C08K 3/04 (2006.01); C09K 19/38 (2006.01); C09K 19/52 (2006.01); C09K 19/54 (2006.01)

CPC C08J 5/18 (2013.01) [C08G 73/1042 (2013.01); C08G 73/105 (2013.01); C08G 73/1071 (2013.01); C08K 3/04 (2013.01); C08J 2379/08 (2013.01); C08K 2201/005 (2013.01); C09K 19/38 (2013.01); C09K 2019/521 (2013.01); C09K 19/544 (2013.01)]

6 Claims

1. A high-modulus black matte polyimide film, comprising:

polyimide in an amount from 75 to 93 wt % of the high-modulus 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;

carbon black in an amount from 2 to 8 wt % of the high-modulus matte polyimide film; and

liquid crystal polymer micropowder having a particle size between 2 and 10 μm and being in an amount from 7.5 to 20 wt % of the high-modulus matte polyimide film,

wherein the high-modulus matte polyimide film has a gloss value at 60° being less than 50.