Title:
LIQUID-CRYSTALLINE POLYESTER-BASED RESIN COMPOSITION, LIQUID-CRYSTALLINE POLYESTER-BASED FILM USING SAID COMPOSITION, METAL LAMINATED FILM USING SAID FILM, AND CIRCUIT BOARD
Document Type and Number:
WIPO Patent Application WO/2022/220204
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide a liquid-crystalline polyester resin composition which has excellent mechanical properties, electrical properties, and heat resistance, and from which a film can be stably formed through inflation extrusion molding. [Solution] This liquid-crystalline polyester-based resin composition contains a thermoplastic liquid-crystalline polyester (A) and a thermoplastic liquid-crystalline polyester (B), and is characterized in that the difference in melting point between the thermoplastic liquid-crystalline polyester (A) and the thermoplastic liquid-crystalline polyester (B) is 5-95°C, the thermoplastic liquid-crystalline polyester (A) includes a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 6-hydroxy-2-naphthoic acid, the thermoplastic liquid-crystalline polyester (B) either includes a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 6-hydroxy-2-naphthoic acid or includes a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 4,4'-dihydroxy biphenyl, the blending ratio of the thermoplastic liquid-crystalline polyester (A) and the thermoplastic liquid-crystalline polyester (B) is (A):(B)=40 to 98 wt% : 2 to 60 wt%, and the liquid-crystalline polyester-based resin composition is to be used for inflation extrusion molding.
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Inventors:
TADA SYUGO (JP)
KAI TAKUYA (JP)
ABE TAKASHI (JP)
KAI TAKUYA (JP)
ABE TAKASHI (JP)
Application Number:
PCT/JP2022/017447
Publication Date:
October 20, 2022
Filing Date:
April 09, 2022
Export Citation:
Assignee:
OKURA INDUSTRIAL CO LTD (JP)
International Classes:
C08L67/03; B29C48/10; B32B15/08; B32B15/09
Foreign References:
| JP2009227807A | 2009-10-08 | |||
| JP2018196953A | 2018-12-13 | |||
| JP2001342243A | 2001-12-11 | |||
| JPH0912744A | 1997-01-14 | |||
| JP2021028374A | 2021-02-25 | |||
| JP2002060498A | 2002-02-26 |
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