EP 1034220 A1 20000913 - BITUMINOUS COMPOSITIONS PREPARED WITH PROCESS TREATED VULCANIZED RUBBERS
Title (en)
BITUMINOUS COMPOSITIONS PREPARED WITH PROCESS TREATED VULCANIZED RUBBERS
Title (de)
BITUMINÖSE ZUSAMMENSETZUNGEN HERGESTELLT MIT IN-SITU BEHANDELTEN VULKANISIERTEN KAUTSCHUKEN
Title (fr)
COMPOSITIONS BITUMINEUSES PREPAREES A L'AIDE DE CAOUTCHOUC VULCANISES
Publication
Application
Priority
- CA 9801078 W 19981120
- US 97496097 A 19971120
Abstract (en)
[origin: WO9927018A1] Stable rubberized bitumen concentrates are prepared by initially forming a mass comprising bitumen and crumb rubber particles in an amount of at least about 15 wt.% of the mass with the crumb rubber being swollen in-situ, and applying shear and temperature conditions to the mass to dissociate the vulcanizate network of the rubber particles and to incorporate the disgested vulcanizate into the bitumen. The stable rubberized bitumen concentrate is stable against sedimentation of rubber particles both following storage of the concentrate at about 320 DEG F for 48 hours and dilution to a lower concentration in the ASTM solubility test.
IPC 1-7
IPC 8 full level
C08L 21/00 (2006.01); C08L 95/00 (2006.01)
CPC (source: EP)
C08L 95/00 (2013.01)
Citation (search report)
See references of WO 9927018A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9927018 A1 19990603; AU 1221299 A 19990615; AU 753655 B2 20021024; BR 9815630 A 20030513; CA 2310645 A1 19990603; CN 1218074 A 19990602; CZ 20001879 A3 20011017; EP 1034220 A1 20000913; JP 2001524569 A 20011204; NZ 504702 A 20021126; PL 340684 A1 20010226; TR 200001843 T2 20001221; ZA 9810654 B 19990520
DOCDB simple family (application)
CA 9801078 W 19981120; AU 1221299 A 19981120; BR 9815630 A 19981120; CA 2310645 A 19981120; CN 98118542 A 19980831; CZ 20001879 A 19981120; EP 98955291 A 19981120; JP 2000522166 A 19981120; NZ 50470298 A 19981120; PL 34068498 A 19981120; TR 200001843 T 19981120; ZA 9810654 A 19981120