JPS5513202A - Preparation of bismaleimide - Google Patents

Preparation of bismaleimide

Info

Publication number
JPS5513202A
JPS5513202A JP7317778A JP7317778A JPS5513202A JP S5513202 A JPS5513202 A JP S5513202A JP 7317778 A JP7317778 A JP 7317778A JP 7317778 A JP7317778 A JP 7317778A JP S5513202 A JPS5513202 A JP S5513202A
Authority
JP
Japan
Prior art keywords
diaminodiphenylmethane
formula
auxiliary
compound
starting material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7317778A
Other languages
Japanese (ja)
Other versions
JPS5822113B2 (en
Inventor
Masayuki Oba
Motoo Kawamata
Hikotada Tsuboi
Nobushi Koga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP53073177A priority Critical patent/JPS5822113B2/en
Publication of JPS5513202A publication Critical patent/JPS5513202A/en
Publication of JPS5822113B2 publication Critical patent/JPS5822113B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To obtain the title compound, a starting material of founctional resins, in high yield and without side reactions, by treating 4,4'-diaminodiphenylmethane and maleic anhydride with a lower coarboxylic acid, using a specific reaction auxiliary to inhibit the coagulation of the slurry.
CONSTITUTION: 4,4'-diaminodiphenylmethane of formula I and maleic anhydride are subjected to the ring opening reaction in the presence of an organic solvent and then to the dehydration cyclization by the addition of a Co compound catalyst, a tertiary amine and a lower carboxylic anhydride to give N,N'-(4,4'-Diphenylmethane)bismaleimide of formula II. In these processes, a compound of formula III (Y1WY9=H, NH2, at least one of them is NH2) or formula IV (Y10=C1-5 alkyl, C1-5 alkoxy), e.g. 2,4'-diaminodiphenylmethane etc., is used as a reaction auxiliary. The chemical properties of the auxiliary are similar to the starting material, 4,4'- diaminodiphenylmethane.
COPYRIGHT: (C)1980,JPO&Japio
JP53073177A 1978-06-19 1978-06-19 Method for producing bismaleimide Expired JPS5822113B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53073177A JPS5822113B2 (en) 1978-06-19 1978-06-19 Method for producing bismaleimide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53073177A JPS5822113B2 (en) 1978-06-19 1978-06-19 Method for producing bismaleimide

Publications (2)

Publication Number Publication Date
JPS5513202A true JPS5513202A (en) 1980-01-30
JPS5822113B2 JPS5822113B2 (en) 1983-05-06

Family

ID=13510588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53073177A Expired JPS5822113B2 (en) 1978-06-19 1978-06-19 Method for producing bismaleimide

Country Status (1)

Country Link
JP (1) JPS5822113B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62126166A (en) * 1985-11-26 1987-06-08 Mitsui Toatsu Chem Inc Bismaleimide composition and production thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59155245A (en) * 1983-02-24 1984-09-04 国際交易株式会社 Cerebral aneurysm clip
JPH0340254Y2 (en) * 1985-09-11 1991-08-23
JPH0530736Y2 (en) * 1986-06-06 1993-08-06

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48103569A (en) * 1972-04-07 1973-12-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48103569A (en) * 1972-04-07 1973-12-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62126166A (en) * 1985-11-26 1987-06-08 Mitsui Toatsu Chem Inc Bismaleimide composition and production thereof

Also Published As

Publication number Publication date
JPS5822113B2 (en) 1983-05-06

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