Global Patent Index - EP 1034150 A1

EP 1034150 A1 2000-09-13 - METHOD OF TREATING LIMESTONE AND LIKE CALCAREOUS MATERIALS

Title (en)

METHOD OF TREATING LIMESTONE AND LIKE CALCAREOUS MATERIALS

Title (de)

VERFAHREN ZUR BEHANDLUNG VON KALKSTEIN UND ÄHNLICHEN KALKMATERIALIEN

Title (fr)

PROCEDE PERMETTANT DE TRAITER LE CALCAIRE ET LES MATERIAUX DE TYPE CALCAIRE

Publication

EP 1034150 A1 (EN)

Application

EP 98942385 A

Priority

  • AU 9800757 W
  • AU PO935797 A

Abstract (en)

[origin: WO9915479A1] A method of treating limestone comprising introducing into the voids and/or interstitial spaces within the limestone, a water excluding agent to render the limestone substantially impervious and to increase the interstitial bonding within the limestone. According to one form of the invention the water excluding agent comprises a calcium carbonate solution.

IPC 1-7 (main, further and additional classification)

C04B 41/50; E02D 3/12; E04B 1/66

IPC 8 full level (invention and additional information)

C04B 41/50 (2006.01); E02D 3/12 (2006.01)

CPC (invention and additional information)

C04B 41/009 (2013.01); C04B 41/501 (2013.01); E02D 3/12 (2013.01); E02D 2250/003 (2013.01)

Combination set (CPC)

  1. C04B 41/501 + C04B 41/4535 + C04B 41/457 + C04B 41/5016
  2. C04B 41/009 + C04B 14/28

Citation (search report)

See references of WO 9915479A1

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 9915479 A1 19990401; AU PO935797 D0 19971016; EP 1034150 A1 20000913

INPADOC legal status


2002-01-23 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010403

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

- Effective date: 20000419

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

- Kind Code of Ref Document: A1

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