Battelle Development Corporation

Battelle Memorial Institute

The Procter Gamble Company

Gunter Bellmann

Van T Nguyen

Nguyen Van Tao

Jean-Pierre Sachetto

Jean-Michel Armanet

Sorin V Mustatea

Francoise Boussel

Emanuel P Fakoukakis

Celeste Cervini

This method which involves reacting maleic anhydride and .alpha.-olefins in an autoclave at about 200.degree.-250.degree. C. gives particularly good results and produces alkenyl-succinic anhydrides which need not be purified by distillation when using, as the starting .alpha.-olefins, dodecene containing a substantial amount of tetradecene.

Method for the production of alkenyl-succinic anhydrides

A process is disclosed for producing an abrasion resistant UV curable photopolymerizable composition for coating substrates. The process involves dense grafting and comprises hydrolyzing in an aqueous acidic solution a trialkoxysilane to render it organophillic followed by dispersion with fine silica or alumina. Grafting of the hydrolyzed trialkoxysilane to the silica or alumina is effected through dehydration. The grafted material is then dispersed into intimate contact with one or more photopolymerizable monomers and photoinitiators.

Photo setting composition for coating substrates with an

Low viscosity stable aqueous dispersion of graft carbon black

Mineral charge particles of silica or alumina are grafted with a hydrolysis product from a di- or trialkoxysilane whose functional group is compatible with an organic phase into which said grafted particles are ultimately incorporated. The grafted particles are separated from the aqueous hydrolysis medium by spray-drying. The organic phase comprising the grafted mineral particles is used to provide coatings with abrasion resistant properties.

Method for manufacturing a composition for coating substrates with an

Cross-linked carboxymethylcellulose with intermolecular carbonate bridges.

Carboxymethylcellulose with carbonate bridges and preparation thereof

Diacrylate and dimethacrylate esters corresponding to the formula ##STR1## wherein R and R' are hydrogen or methyl and A is either a sigma (.sigma.) bond; a (CH.sub.2).eta. radical where .eta. is an interger that may vary from one through four; or phenylene, or an alkyl derivative thereof. The new adamantane containing difunctional olefinic monomers can then be polymerized, or copolymerized with other acrylic type olefinic monomers to produce polymers with unusual physical properties, including unusual hardness, inertness to degradable agents, and resistance to heat.

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Commugny, Switzerland

Gunter Bellmann