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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 11180890 B1

PDFFull Text
Date of Patent:
Nov. 23, 2021

Filed:

Mar. 09, 2018

Fluorochemical-free oil and grease resistant cellulosic materials

Applicant:

Coöperatie Avebe U.a., Veendam, NL;

Inventors:

Didier André Pierre Delnoye, Groningen, NL;

John Beugeling, Gieten, NL;

Simon Petrus Jozef Laan, Hoogezand, NL;

Pieter Slor, Foxhol, NL;

Jan Albert Bleeker, Haren, NL;

Assignee:

COÖPERATIE AVEBE U.A., Veendam, NL;

Attorney:

Hoffmann and Baron, LLP

Primary Examiner:

Mark Halpern

Int. Cl.
CPC ...
D21H 21/16 (2006.01); D21H 19/38 (2006.01); D21H 19/54 (2006.01); D21H 19/62 (2006.01);
U.S. Cl.
CPC ...
D21H 21/16 (2013.01); D21H 19/385 (2013.01); D21H 19/54 (2013.01); D21H 19/62 (2013.01);
Abstract

The invention pertains to a cellulosic material provided with a coating comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3−10×10Da and a water-soluble starch extender present in a quantity of 0 to 25 wt. % based on the coating dry weight, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, as well as to use thereof in improving the oil and grease resistance of paper. The invention furthermore pertains to a method to improve the oil and grease resistance of a cellulosic material, comprising providing a cellulosic material, coating said material on at least one side with a homogenous aqueous composition comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3−10×106 Da and 0-3 wt. % of a starch extender, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, and drying the cellulosic material.

Find Patent Forward Citations

Delnoye, Didier André Pierre. (2021). Fluorochemical-free oil and grease resistant cellulosic materials (U.S. Patent No. 11180890). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11180890

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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