FR1603128A - Quinazoline based heat stable polymers - Google Patents

Quinazoline based heat stable polymers

Info

Publication number
FR1603128A
FR1603128A FR1603128DA FR1603128A FR 1603128 A FR1603128 A FR 1603128A FR 1603128D A FR1603128D A FR 1603128DA FR 1603128 A FR1603128 A FR 1603128A
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FR
France
Prior art keywords
heat stable
based heat
stable polymers
quinazoline
formula
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.)
Expired
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French (fr)
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.)
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Publication date
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Application granted granted Critical
Publication of FR1603128A publication Critical patent/FR1603128A/en
Expired legal-status Critical Current

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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
    • 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
    • C08G73/0683—Polycondensates containing six-membered rings, condensed with other rings, with nitrogen atoms as the only ring hetero atoms
    • C08G73/0694—Polycondensates containing six-membered rings, condensed with other rings, with nitrogen atoms as the only ring hetero atoms with only two nitrogen atoms in the ring, e.g. polyquinoxalines

Abstract

Heat stable polymer based on quinazoline has formula: (where R is alkyl e.g. Me, Bu, etc.; Ar is aromatic or bivalent heterocyclic radical and n is no. such that final polymer has inherent viscosity at 0.5% concn. in m-cresol of 0.1 pref.0.4 to 3.0 at 30 degrees C). This polymer is prepd. by reactg. a diamine H2N-Ar-NH2 with >=1 bis-benzoxazinones of formula (II): These polymers have very high heat stability and are used for making films and varnishes.
FR1603128D 1968-07-04 1968-07-04 Quinazoline based heat stable polymers Expired FR1603128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR157984 1968-07-04

Publications (1)

Publication Number Publication Date
FR1603128A true FR1603128A (en) 1971-03-22

Family

ID=8652123

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1603128D Expired FR1603128A (en) 1968-07-04 1968-07-04 Quinazoline based heat stable polymers

Country Status (1)

Country Link
FR (1) FR1603128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467223A1 (en) * 1979-10-09 1981-04-17 Nitto Electric Ind Co SELECTIVE PERMEABLE MEMBRANES CONTAINING POLYQUINAZOLONE POLYMER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467223A1 (en) * 1979-10-09 1981-04-17 Nitto Electric Ind Co SELECTIVE PERMEABLE MEMBRANES CONTAINING POLYQUINAZOLONE POLYMER
DE3038012A1 (en) * 1979-10-09 1981-04-23 Nitto Electric Industrial Co., Ltd., Ibaraki, Osaka SELECTIVELY PERMEABLE MEMBRANE BASED ON A POLYCHINAZOLONE POLYMER

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Legal Events

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