Agence Nationale De Valorisation De La Recherche (anvar)

Societe Nationale Des Poudres Et Explosifs

Jean-Claude Brosse

Sammy H Chevalier

Christian Decker

Khalil Moussa

Jean-Claude Lenain

Denis Couvert

Christian Pinazzi

The invention relates to a process for the manufacture of coatings by radiocrosslinking. A radio-crosslinkable composition (C) is produced first of all by mixing at least one (meth)acrylic compound (A) with a reactive diluent system comprising at least one mono(meth)acrylic carbonate (B) corresponding to the general formula (I): ##STR1## in which: R.sub.1 denotes H or CH.sub.3

Process for the manufacture of coatings by radiocrosslinking

The process enables the simultaneous production of hydroxytelechelic polymers and oligomers by the radical route. At least one ethylenically unsaturated monomer is polymerized in the presence of hydrogen peroxide under the effect of ultra-violet radiation. The polymerization is carried out in a diluent medium comprising essentially an alcohol. The process can be operated to produce polymers having average molecular weights between one hundred and one million and to produce selectively unimodal, bi-modal or multi-modal distributions of molecular weights.

Process for producing hydroxytelechelic oligomers and polymers by

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Connerre, France

Jean-Claude Brosse