Institut Francais Du Pe'trole

Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et

Institut Francais Du Petrole, Es Carburants Et Lubrifiants Et Entreprise

Robert Salle

Bernard Sillion

Choua Cohen

Durif Durif Varambon

Bruno Durif-Varambon

New dicarboxylic compounds of the formula: ##STR1## where R is a hydrogen atom or an alkyl, cycloalkyl or aryl group of 1 - 10 carbon atoms, may be used for manufacturing polyester-imides and copolyester-imides -- Varnishes obtained therefrom are useful for coating electric metal conductors.

Dicarboxylic compounds and polyesters derived therefrom

A dicarboxylic compound complying with one of the general formulae: ##SPC1## In which R is a divalent radical selected from the aliphatic, alicyclic and aromatic radicals, the aliphatic containing 1-20 carbon atoms and the other containing from 5 to 20 carbon atoms, R.sup.1 is selected from the hydrogen atom and the alkyl and cycloalkyl groups containing from 1 to 10 carbon atoms and R.sup.2 is selected from the alkyl and cycloalkyl groups containing from 1 to 10 carbon atoms, the polyester resins derived therefrom being usable as enamelling composition, particularly for coating metal wires.

Dicarboxylic compounds having 2,4-quinazolinedione rings and polyester

New polyamide-ester resins, their manufacture and the new compositions manufactured therefrom, the latter being useful for enameling metal conductors. The enameled conductors are stable at relatively high temperatures. The resins are manufactured from a polycarboxylic component, a part of which is a 2,4-quinazoline dione dicarboxylic compound, a polyamine component and a polyhydroxy component.

Growing community of inventors

Grenoble, France

Robert Salle