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 10450704 B1

Date of Patent:

Oct. 22, 2019

Filed:

Oct. 25, 2016

Coating composition and coated paper and coated paperboard

Applicant:

Imerys Usa, Inc., Roswell, GA (US);

Inventors:

Anthony Lyons, Macon, GA (US);

Chinmay Peshave, Milledgeville, GA (US);

Assignee:

Imerys USA, Inc., Roswell, GA (US);

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Primary Examiner:

Alexander C Kollias

Int. Cl.

CPC ...

D21H 19/64 (2006.01); C09D 1/00 (2006.01); D21H 19/38 (2006.01); D21H 19/40 (2006.01); D21H 21/50 (2006.01); D21H 21/52 (2006.01); C09D 101/32 (2006.01); C09D 133/08 (2006.01); C09D 101/28 (2006.01); C09C 1/02 (2006.01); C09D 103/02 (2006.01); C09D 131/04 (2006.01); C09D 133/00 (2006.01); D21H 19/54 (2006.01); D21H 19/58 (2006.01); D21H 19/60 (2006.01); C09D 7/43 (2018.01); C09D 7/61 (2018.01); C08K 3/34 (2006.01); C08K 5/098 (2006.01); C08K 3/26 (2006.01);

U.S. Cl.

CPC ...

D21H 19/64 (2013.01); C09C 1/021 (2013.01); C09D 1/00 (2013.01); C09D 7/43 (2018.01); C09D 7/61 (2018.01); C09D 101/286 (2013.01); C09D 101/32 (2013.01); C09D 103/02 (2013.01); C09D 131/04 (2013.01); C09D 133/00 (2013.01); C09D 133/08 (2013.01); D21H 19/385 (2013.01); D21H 19/40 (2013.01); D21H 19/54 (2013.01); D21H 19/58 (2013.01); D21H 19/60 (2013.01); D21H 21/50 (2013.01); D21H 21/52 (2013.01); C08K 3/26 (2013.01); C08K 3/346 (2013.01); C08K 5/098 (2013.01); C08K 2003/265 (2013.01); Y10T 428/258 (2015.01);

Abstract

A coating composition may include kaolin having a shape factor less than about 70 and calcium carbonate, wherein less than about 90% by weight and greater than about 60% by weight of particles of the calcium carbonate have an equivalent spherical diameter (esd) less than 2 microns. The coating composition may include a thickener present in an amount ranging from about 0.1% to about 0.9% by active dry weight of the composition. A coating composition may include kaolin having a shape factor less than about 70 and calcium carbonate having a mean particle size (d) of at least about 2.4 microns and a steepness factor of at least about 30. The coating composition may be a paper basecoat composition or a paperboard basecoat composition. A paper or paperboard product may include the coating composition on at least one surface of the paper product or paperboard product.

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