JPS57133126A - Preparation of polyamide-imide - Google Patents

Preparation of polyamide-imide

Info

Publication number
JPS57133126A
JPS57133126A JP56017556A JP1755681A JPS57133126A JP S57133126 A JPS57133126 A JP S57133126A JP 56017556 A JP56017556 A JP 56017556A JP 1755681 A JP1755681 A JP 1755681A JP S57133126 A JPS57133126 A JP S57133126A
Authority
JP
Japan
Prior art keywords
imide
polyamide
solvent
sulfolane
pref
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
JP56017556A
Other languages
Japanese (ja)
Other versions
JPS6340811B2 (en
Inventor
Yoshihiko Honda
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.)
Nippon Mektron KK
Original Assignee
Nippon Mektron KK
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 Nippon Mektron KK filed Critical Nippon Mektron KK
Priority to JP56017556A priority Critical patent/JPS57133126A/en
Publication of JPS57133126A publication Critical patent/JPS57133126A/en
Publication of JPS6340811B2 publication Critical patent/JPS6340811B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

PURPOSE: To prepare a polyamide-imide having high molecular weight in the form of a resin solution which is most suitable for varnish, by reacting a tribasic acid anhydride with a diisocyanate compound in sulfolane solvent in the presence of a tertiary amine catalyst.
CONSTITUTION: A sulfolane solution of the objective polyamide-imide can be prepared by the polycondensation reaction of (A) a tribasic acid anhydride (e.g. trimellitic anhydride) with (B) a diisocyanate compound (e.g. diphenylmethane diisocyanate) in (C) a sulfolane solvent (pref. purified by distillation on granular NaOH) in the presence of (D) a tertiary amine catalyst (e.g. triethylamine) usually at about 120W150°C removing the evolving CO2 gas from the reaction system. The amount of the solvent (C) is pref. selected to give concentration of the produced polymer of about 10W20wt%.
COPYRIGHT: (C)1982,JPO&Japio
JP56017556A 1981-02-10 1981-02-10 Preparation of polyamide-imide Granted JPS57133126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56017556A JPS57133126A (en) 1981-02-10 1981-02-10 Preparation of polyamide-imide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56017556A JPS57133126A (en) 1981-02-10 1981-02-10 Preparation of polyamide-imide

Publications (2)

Publication Number Publication Date
JPS57133126A true JPS57133126A (en) 1982-08-17
JPS6340811B2 JPS6340811B2 (en) 1988-08-12

Family

ID=11947182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56017556A Granted JPS57133126A (en) 1981-02-10 1981-02-10 Preparation of polyamide-imide

Country Status (1)

Country Link
JP (1) JPS57133126A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098350A2 (en) * 1982-04-16 1984-01-18 Sumitomo Chemical Company, Limited Process for producing aromatic polyamide-imide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021045154A1 (en) 2019-09-06 2021-03-11
TW202120586A (en) 2019-09-06 2021-06-01 日商三菱瓦斯化學股份有限公司 Polycarbonate resin composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147999A (en) * 1974-10-23 1976-04-24 Hitachi Ltd
JPS5284288A (en) * 1976-01-07 1977-07-13 Hitachi Ltd Preparation of polyimides soluble in solvents

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147999A (en) * 1974-10-23 1976-04-24 Hitachi Ltd
JPS5284288A (en) * 1976-01-07 1977-07-13 Hitachi Ltd Preparation of polyimides soluble in solvents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098350A2 (en) * 1982-04-16 1984-01-18 Sumitomo Chemical Company, Limited Process for producing aromatic polyamide-imide

Also Published As

Publication number Publication date
JPS6340811B2 (en) 1988-08-12

Similar Documents

Publication Publication Date Title
JPS57200420A (en) Production of polyamide
JPS57133126A (en) Preparation of polyamide-imide
DE3854291D1 (en) Process for the preparation of P, P'-biphenol.
DE69028938D1 (en) Process for the purification of 3-alpha-7-beta-dihydroxycholic acid
KR927003497A (en) 1,4-bis (4-hydroxybenzoyl) benzene
JPS577438A (en) Production of acid chloride
JPS574941A (en) Fluorine-containing corboxylic acid and its ester
JPS5762241A (en) Biphenyltetracarboxylic acid tetra-ester
JPS5747304A (en) Novel tris bipyridyl ruthenium high polymeric complex and its preparation
JPS5670024A (en) Continuous polymerization of phenols
JPS56127329A (en) Preparation of monochloroacetic acid
US20170197948A1 (en) Method for producing carboxylic anhydride
JPS5721418A (en) Moisture-curing polyurethane resin for flooring material and paving material
JPS62106066A (en) 1,1-bis(2-cyanoethoxy)-ethane and production thereof
US3795642A (en) Tris(hydroxyalkyl)-3,3,3-nitrilotripropionates
JPS56152821A (en) Production of modified aromatic hydrocarbon resin
ATE28081T1 (en) PROCESS FOR PREPARING A POLYPHENYLENE ETHER PROTECTED AGAINST MOLECULAR WEIGHT DEGRADATION.
JPS5763331A (en) Preparation of polyamic acid solution
JPS5716004A (en) Production of partial amide of poly(olefin/maleic acid)
JPS5655338A (en) Simultaneous preparation of bis hydroxyphenyl acetic acid and hydroxymandelic acid
JPS5780404A (en) Production of aromatic hydrocarbon/formaldehyde resin
JPS55162727A (en) Reductive addition reaction of aromatic hydrocarbon
SU1741398A1 (en) METHOD OF OBTAINING SOLUBLE POLYIMIDES
JPS57125220A (en) Preparation of polyamide-imide
JPS57145825A (en) Preparation of ketonic compound from alicyclic carboxylic acid