KR890010035A - Modified Bismaleimide Resin and Manufacturing Method Thereof - Google Patents

Abstract

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Description

Modified Bismaleimide Resin and Manufacturing Method Thereof

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Claims (9)

Modified bismaleimide resin represented by the following general formula (I) Wherein n is 1-3, A represents a divalent group containing at least two carbon atoms, generally not containing 20, and A 'contains at least one aromatic group, generally 20 A divalent group containing the following carbon atoms, wherein R is an aliphatic group containing at least 1 to 10 carbon atoms. A method for producing a modified bismaleimide resin represented by formula (I), wherein bismaleimide and aromatic secondary diamine are added by Michael at a temperature of 100-150 ° C. The method according to claim 2, wherein the bismaleimide is a substance represented by the following general formula (II). Wherein B represents a divalent group containing two or more carbon atoms, preferably two to six carbon atoms, including a double bond between carbon and carbon, and A includes at least two carbon atoms, generally not containing 20 carbon atoms. It is a bivalent group. The bismaleimide of claim 2 or 3, wherein the bismaleimide is N, N'-1,3-phenylene bismaleimide, N, N'-4,4'-diphenylmethane bismaleimide, N, N ' -4,4'-diphenylether bismaleimide, N, N'-4.4'-diphenylene sulfone bismaleimide, N, N'-3,4'-diphenylsulfon bismaleimide, N, N ' -4,4'-dicyclohexyl methanebismaleimide, N, N'-4,4'-diphenylenecyclohexane bismaleimide N, N'-4,4'-diphenyl cyclohexane bismaleimide, N, N'-1,3-xylylene bismaleimide, 2,4-bismaleimide toluene 2,6-bismaleimide toluene The manufacturing method of the bismaleimide resin characterized by the above-mentioned. The method according to claim 2, wherein the aromatic secondary diamine is a substance represented by the following general formula (III). Here, A 'is a divalent group containing at least one aromatic group, generally containing 20 carbon atoms or less, and R is an aliphatic group containing at least 1 carbon atom and 10 carbon atoms. The method of claim 2 or 5, wherein the aromatic secondary diamine is N, N'-dimethyl-4,4'-diamino diphenylmethane, N, N'-methylethyl-4,4'-diamino diphenylmethane , N, N'-dimethyl-4,4'-diamino diphenylsulfone, N, N'-dimethyl-4,4'-diamino diphenylether, N- (1-3-dimethylbutyl) -N ' -Phenyl-paraphenylene diamine, N-isopropyl-N'-phenyl-paraphenylenediamine, N, N'-diphenyl-paraphenylene diamine, N, N'-dimethyl-2,4-diamino toluene And N, N'-dimethyl-2,6-diamino toluene and N, N'-dicyclohexyl-4,4'-diamino diphenylmethane. The method for producing a bismaleimide resin according to claim 2, wherein the amount of bismaleimide and aromatic secondary diamine is 1,2: 1-10: 1. The method for producing a bismaleimide resin according to claim 2, wherein an ionic catalyst is used during the Michael addition reaction. The bismaleimide resin according to claim 2, wherein the ionic catalyst is diazabicyclooctane, imidazole, 2-methylimidazole, 2-phenylimidazole, 4-methyl, 2-phenylimidazole. Manufacturing method. ※ Note: The disclosure is based on the initial application.