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.:
Date of Patent:
Feb. 25, 2020
Filed:
Apr. 28, 2016
Applicants:
Fp-pigments Oy, Espoo, FI;
Ch-polymers Oy, Espoo, FI;
Inventors:
Assignee:
FP-Pigments Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/52 (2006.01); D21H 19/40 (2006.01); C09C 1/02 (2006.01); D21H 19/38 (2006.01); D21H 19/58 (2006.01); D21J 1/08 (2006.01);
U.S. Cl.
CPC ...
D21H 19/40 (2013.01); C09C 1/021 (2013.01); D21H 19/385 (2013.01); D21H 19/58 (2013.01); D21H 21/52 (2013.01); D21J 1/08 (2013.01); C01P 2004/64 (2013.01); C01P 2006/22 (2013.01);
Abstract
A stable aqueous dispersion of platy particles and precipitated calcium carbonate, a method of producing the same and uses of the dispersion. The aqueous dispersion comprises 50 to 95 parts by weight of platy particles; and 5 to 50 parts by weight of precipitated calcium carbonate particles having an average diameter of 30 to 60 nm. The dispersion has a dry matter content of more than 30% by weight of the dispersion, and a Brookfield viscosity (100 rpm) of 200 to 5000 cP. The dispersion is suitable for forming barrier coatings on a substrate, having properties of improved gas barrier and improved mineral oil barrier.