Elf Antar France

Elf France

Elf Exploration Production

Annie Zins

Jean-Pascal Planche

Paul Maldonado

Laurent Germanaud

Thierry Senninger

Claude Lacour

Francois Travers

Bernard Neff

Stephane Drouilhet

The invention provides a method comprising contacting, between 100&deg; C. and 230&deg; C. and under agitation, an elastomer, a functionalising agent and optionally, a peroxide compound. The functionalising agent is a thiolcarboxylic acid polyester or a reaction product of a thiolcarboxylic acid or ester with ethylene sulphide. The functionalised elastomer can also be pre-formed, then incorporated into the bitumen. The resulting compositions are usable directly or after dilution, for forming bituminous binders to produce surfacing, coating and waterproofing materials.

Process for the preparation of functionalized elastomer/bitumen compositions and their use in coatings

Process for the preparation of polymer/bitumen compositions and their

Process for the preparation of elastomer/bitumen compositions and their

A process is provided for the preparation of bitumen-polymer compositions wherein bitumen is mixed at a composition between 100.degree. C. and 230.degree. C. with a block copolymer of styrene and a conjugated diene and a coupling agent containing a sulphur-donor compound for a duration of at least 10 minutes. The coupling agent is comprised of an elementary sulphur vulcanization agent and at least one sulphur-donor vulcanization accelerator from among morpholine disulphide, N,N'-disulphide of caprolactam and thiuram polysulphides.

Process for the preparation of bitumen-polymer composition

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Seyssuel, France

Annie Zins