MITTELS CARBOXYLGRUPPEN ODER GEPFROPTEN ESTERN FUNKTIONALISIERTES ELASTOMER UND VERWENDUNG DAVON ZUR HERSTELLUNG VON BITUMEN/FUNKTIONALISIERTES ELASTOMER-ZUSAMMENSETZUNGEN, ZUR ERZEUGUNG VON BESCHICHTUNGEN

摘要

PCT No. PCT/FR96/01613 Sec. 371 Date Aug. 22, 1997 Sec. 102(e) Date Aug. 22, 1997 PCT Filed Oct. 16, 1996 PCT Pub. No. WO97/14726 PCT Pub. Date Apr. 24, 1997A functionalized elastomer is provided which is of the type containing a substrate elastomer, having a weight-average molecular mass (+E,ovs M+EE w)0 of between 10,000 and 600,000 daltons and a polydispersity index of less than 5, onto which are grafted, in an amount representing 0.1 to 10% by weight of the substrate, sequences carrying carboxyl or ester functional groups, wherein its weight-average molecular +E,ovs M+EE w is such that the ratio is less than 20% and the sequences grafted onto the substrate correspond to the formula in which R1 denotes an (x+z+1)-valent C1 to C12 hydrocarbon radical, X represents H or a monovalent C1 to C12 hydrocarbon radical R, z is equal to zero or 1 and x is an integer having a value ranging from 1 to 3 with x+z