BE744540A - Perfectionnements relatifs a la preparation - Google Patents

Perfectionnements relatifs a la preparation

Info

Publication number
BE744540A
BE744540A BE744540DA BE744540A BE 744540 A BE744540 A BE 744540A BE 744540D A BE744540D A BE 744540DA BE 744540 A BE744540 A BE 744540A
Authority
BE
Belgium
Prior art keywords
preparation
improvements related
Prior art date
Application number
Other languages
English (en)
Inventor
P S Carleton
W J Farrissey Jr
J S Rose
Original Assignee
Upjohn Co
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 Upjohn Co filed Critical Upjohn Co
Publication of BE744540A publication Critical patent/BE744540A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/22—Catalysts containing metal compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/166—Catalysts not provided for in the groups C08G18/18 - C08G18/26
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
    • C08G18/343—Polycarboxylic acids having at least three carboxylic acid groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1003—Preparatory processes
    • C08G73/1035—Preparatory processes from tetracarboxylic acids or derivatives and diisocyanates
BE744540D 1969-01-17 1970-01-16 Perfectionnements relatifs a la preparation BE744540A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79214469A 1969-01-17 1969-01-17

Publications (1)

Publication Number Publication Date
BE744540A true BE744540A (fr) 1970-07-16

Family

ID=25155933

Family Applications (1)

Application Number Title Priority Date Filing Date
BE744540D BE744540A (fr) 1969-01-17 1970-01-16 Perfectionnements relatifs a la preparation

Country Status (5)

Country Link
US (1) US3701756A (fr)
BE (1) BE744540A (fr)
DE (1) DE2001914A1 (fr)
FR (1) FR2028534A1 (fr)
GB (1) GB1272201A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE787826A (fr) * 1971-08-23 1973-02-22 Union Carbide Corp Procede de production catalytique d'imido-isocyanates aromatiques
US3868389A (en) * 1973-06-22 1975-02-25 Gen Electric Method for making n-substituted nitrophthalimides
US3948941A (en) * 1973-10-26 1976-04-06 Exxon Research And Engineering Company Preparation of imides using CN- catalysts
US4021412A (en) * 1974-11-07 1977-05-03 The Upjohn Company Alkali metal lactamate catalyst for the polymerization of diisocyanate with tetracarboxylic acid/dianhydride
US4001186A (en) * 1974-11-07 1977-01-04 The Upjohn Company Preparation of polyimide from organic diisocyanate with alkali metal salt of alcohol as catalyst
US4243756A (en) * 1979-08-27 1981-01-06 Basf Wyandotte Corporation Stable-liquid isocyanurate-modified polyisocyanate compositions
JPS5716021A (en) * 1980-07-02 1982-01-27 Hitachi Chem Co Ltd Heat-resistant resin composition and insulated wire coated therewith
JPH01199944A (ja) * 1988-02-03 1989-08-11 Dai Ichi Kogyo Seiyaku Co Ltd 含ハロゲン化合物の製造方法、及びその化合物からなる難燃剤
AT392973B (de) * 1989-07-10 1991-07-25 Chemiefaser Lenzing Ag Verfahren zur herstellung von polyimiden und imiden
AT392974B (de) * 1989-07-13 1991-07-25 Chemiefaser Lenzing Ag Mischpolyimide sowie verfahren zu ihrer herstellung
US11753517B2 (en) 2019-12-12 2023-09-12 Raytheon Company Dispensable polyimide aerogel prepolymer, method of making the same, method of using the same, and substrate comprising patterned polyimide aerogel

Also Published As

Publication number Publication date
FR2028534A1 (fr) 1970-10-09
DE2001914A1 (de) 1970-07-30
US3701756A (en) 1972-10-31
GB1272201A (en) 1972-04-26

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