Title: Method for preparing a bitumen/elastomer composition, and use same as a road surfacing
Application Number: 96191610 Application Date: 1996.10.16
Publication Number: 1169745 Publication Date: 1998.01.07
Approval Pub. Date: 2003.10.01 Granted Pub. Date: 2003.10.01
International Classifi-cation: C08G81/02;C08L95/00;C10C3/02
Applicant(s) Name: Elf Antar France Address:
Inventor(s) Name: J. P. Planche;L Germanaud;A. Zins
Attorney & Agent: ZHOU ZHONGQI
Abstract:
    Functionalised elastomer/bitumen compositions with a broad plasticity range are produced by contacting a bitumen or bitumen mixture with an elastomer, a functionalising agent and optionally a peroxide compound at 100-230 DEG C under stirring conditions. The functionalising agent is a thiolcarboxylic acid having 3 or more carbon atoms, a thiolcarboxylic acid ester and specifically a disulphide having carboxylic groupings or carboxylic esters. Said compositions may be used either directly or in diluted form to produce bituminous binders for making road surfacings, coated materials and sealing coatings.
Time: 5