[12] Patent
[11] Patent No.:GC0009378  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141723
Date of the Decision to Grant the Patent:16/Dec/2018

[21] Application No.:GC 2010-16089

[22] Filing Date:15/6/2010

[30] Priority:

[33] State [32] Priority date [31] Priority No.
EP
US
15/6/2009
22/6/2009
09162738.0
61/269.242

[72] Inventors:1- Patrick A. C. Gane،2- Daniel E. Gerard،3- Joachim Schölkopf

[73] Owner: Omya International AG, Baslerstrasse 42, 4665, Oftringen, Switzerland

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: C01B 32/942; C09C 1/02, 3/04; D21H 17/67 (2006.01)

[56] Cited Documents:

-WO 2005121257 A (OMYA DEVELOPMENT AG [CH]; BURI MATTHIAS [CH]; BURKHALTER RENE [CH]; HA) 22 December 2005
-EP 1974807 A (OMYA DEVELOPMENT AG [CH]) 1 October 2008
 
Examiner: Bander M. Al-Thobity

[54] PROCESS FOR PREPARING SURFACE-REACTED CALCIUM CARBONATE AND ITS USE
[57] Abstract: The present invention relates to an economic process for preparing surface-reacted calcium carbonate. The present invention further relates to a surface-reacted calcium carbonate having an increased specific BET surface area, and the use of a process for adjusting the specific BET surface area.
No. of claims: 22


 

Note: Any interested individual may, within 3 months of publication of the grant, file objection thereof with the Grievance Committee after payment of grievance fees.