Burgess, Ryan & Wayne
Process for the preparation of functionalized elastomer/bitumen compositions and their use in coatings
 The invention provides a method comprising contacting, between 100.degree. C. and 230.degree. 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. 
Elf Antar France
C C C
C08L C10C C08G
inventional inventional inventional
Annie Thierry Paul Stephane Jean-Pascal Bernard
Zins Senninger Maldonado Drouilhet Planche Neff