Thermosetting quinazolone resins their preparation and their app

Details Thermosetting quinazolone resins their preparation and their app Thermosetting quinazolone resins their preparation and their app

1989-02-22

1990-06-05

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having a halogen atom or oxygen single bonded...

526259, 526285, 528171, 528172, 528174, 528211, 528392, 528423, 544 63, 544283, C08G 6540, C08G 6362, C08G 6702, C08G 7306

Patent

active

049315412

ABSTRACT:
Thermosetting quinazolone resins, their preparation and their applications re described.
These thermosetting quinazolone resins can be defined as having the following general formula: ##STR1## in which Ar.sup.1 is a bivalent mono- or polycyclic aromatic radical and Ar.sup.2 is a bivalent aromatic radical of several simple aromatic rings bound two by two by atoms or bivalent groups.
These Ar.sup.1 and Ar.sup.2 radicals are chosen so that the melting or emollescence temperature is between 80.degree. C. and 170.degree. C.
The resins can be prepared from condensation of an ethynylarylbenzoxazinone with an aromatic diamine containing flexibilizing groups.
These quinazolone resins can be polymerized in bulk in order to prepare adhesives or composite matrices in particular.

REFERENCES:
patent: 4529793 (1985-07-01), Abe et al.
patent: 4539392 (1985-09-01), Kadoi et al.

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