[12] Patent
[11] Patent No.:GC0011517  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2020                77/2020  
Number of the Decision to Grant the Patent:2020/175801
Date of the Decision to Grant the Patent:06/Dec/2020

[21] Application No.:GCC/P/2009/12989

[22] Filing Date:7/3/2009

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
25/9/2008
61100108

[72] Inventors:1- Maijala Mikko،2- Maijala Roope

[73] Owner: FP-Pigments Oy, Finland

[74] Agent: Saba & Co. T.M.P

  

 

  

[51]IPC:

[56] Cited Documents:

-WO 98/41475 A (KAUTAR OY [Fl]; VIRTANEN PENTTI [FI]) 24
September 1998 (1998-09-24)
Page 1, line 5-17; Page 2, line 22; page 4, line 26; page 8, line 23; page 9,
line 25; claims 1-16; figure 1-4
-EP-A-1 340 795 (FP PIGMENTS OY [Fl]) 3 September 2003 (2003-09-03)
The whole document
-WO 98/16471 A (KAUTAR OY [FI]; VIRTANEN PENTTI [FI]) 23 April
1998 {1998-04-23)
Page 1, line 4-8; Page 5, line 27; page 10, line 3; claims -EP-A-1 323 674 (NITTETSU MINING CO LTD [JP]) 2 July 2003 {2003-
07-02). Paragraphs [0001],[0092]; claims 1-12; examples -EP-A-0 768 344 (ECC INT LTD [GB] IMERYS MINERALS LTD [GB]) 16
April 1997 (1997-04-16). The whole document
-US 2003/024437 Al (WEN FU-CHU [US] ET AL) 6 February 2003 {2003-
02-06). Paragraphs [0013],[0032],[0049],[0066],[0080],[0084]; claims 1-12
WO 97/18268 A ~(DU PONT [US]) 22 May 1997 (1997-05-22)
Page 1, line 10-13; Page 6, line 35-37; claims 1-17
 
Examiner: PH. Nada A. AlShamrani

[54] A pigment particle composition, its method of manufacture and its use
[57] Abstract: A pigment particle composition which comprises calcium carbonate particles and pigment particles, its method of manufacture and its use. According to the present invention, the calcium carbonate particles are carbonated so that they bind to each other, in which case calcium carbonate structures are generated, which comprise pigment particles and which form essentially opaque and stable pigment-calcium carbonate aggregates. It is possible to manufacture the composition by dripping calcium hydroxide-bearing pigment slurry into a carbon dioxide-bearing gas, in which case the calcium hydroxide is carbonated in order to precipitate the calcium hydroxide particles to be attached to each other and the carbonation is continued until essentially all of the calcium hydroxide has been converted into calcium carbonate. The composition is suitable for use, among others, in paints, coating materials, fillers, polymers and printing inks.
No. of claims: 28     No. of figures: 6


 

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