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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10259945 B1

PDFFull Text
Date of Patent:
Apr. 16, 2019

Filed:

Apr. 01, 2016

Pigment particle composition, its method of manufacture and its use

Applicant:

Fp-pigments Oy, Espoo, FI;

Inventors:

Mikko Maijala, Espoo, FI;

Roope Maijala, Espoo, FI;

Assignee:

FP-PIGMENTS OY, Espoo, FI;

Attorney:

McCormick, Paulding & Huber LLP

Primary Examiner:

Shuangyi Abu Ali

Int. Cl.
CPC ...
C09C 1/36 (2006.01); C09D 11/037 (2014.01); B82Y 30/00 (2011.01); C01F 11/18 (2006.01); C08K 3/26 (2006.01); C09C 1/00 (2006.01); C09C 1/02 (2006.01); C09D 17/00 (2006.01); D21H 17/67 (2006.01); D21H 19/38 (2006.01); C08K 3/22 (2006.01); C09D 7/61 (2018.01); C09D 7/40 (2018.01);
U.S. Cl.
CPC ...
C09C 1/3653 (2013.01); B82Y 30/00 (2013.01); C01F 11/181 (2013.01); C08K 3/22 (2013.01); C08K 3/26 (2013.01); C09C 1/0084 (2013.01); C09C 1/021 (2013.01); C09D 7/61 (2018.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C09D 11/037 (2013.01); C09D 17/004 (2013.01); D21H 17/675 (2013.01); D21H 19/38 (2013.01); D21H 19/385 (2013.01); C01P 2004/03 (2013.01); C01P 2004/30 (2013.01); C01P 2004/45 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/265 (2013.01);
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 atomizing 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.

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