Global patent index - EP 1034220 A1

EP 1034220 A1 2000-09-13 - 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

EP 1034220 A1 (EN)

Application

EP 98955291 A

Priority

  • CA 9801078 W
  • US 97496097 A

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 (main, further and additional classification)

C08L 95/00

IPC 8 full level (invention and additional information)

C08L 21/00 (2006.01); C08L 95/00 (2006.01)

CPC (invention and additional information)

C08L 95/00 (2013.01)

Combination set (CPC)

C08L 95/00 + C08L 2666/08

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

EPO simple patent family

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

INPADOC legal status

2005-03-16 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040908

2001-05-30 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010417

2000-09-13 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000619

2000-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE