NEW DIAMINE COMPOUND, POLYAMIC ACID PRODUCED BY USING THE SAME AND IMIDATED POLYMER

PROBLEM TO BE SOLVED: To obtain a new diamine compound for producing an imidated polymer having a higher refractive index and excellent transparency and heat resistance, a polyamic acid produced by using the same and an imidated polymer. SOLUTION: A diamine compound is represented by general formula...

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Main Authors ERIYAMA YUUICHI, ANDO SHINJI, SUGAWARA SHUICHI, UEDA MITSURU, RYU KANETAKE, SHIBAZAKI YUJI, NAKAMURA YASUHIRO, TAKASE HIDEAKI, KURIYAMA KEISUKE
Format Patent
LanguageEnglish
Published 13.11.2008
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
HETEROCYCLIC COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To obtain a new diamine compound for producing an imidated polymer having a higher refractive index and excellent transparency and heat resistance, a polyamic acid produced by using the same and an imidated polymer. SOLUTION: A diamine compound is represented by general formula (1) [wherein R1s are each independently a 1-3C alkyl group; (a)s are each independently an integer of 0-4; and (b)s are each independently an integer of 0-3]. The polyamic acid is obtained by polycondensing the diamine compound with a tetracarboxylic acid dianhydride. The imidated polymer is obtained by heating the polyamic acid. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20080059600