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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 11525211 B1

PDFFull Text
Date of Patent:
Dec. 13, 2022

Filed:

Feb. 22, 2019

Bio-based polyelectrolyte complex compositions comprising non-water soluble particles

Applicant:

Organoclickab, Täby, SE;

Inventors:

Juhanes Aydin, Södertälje, SE;

Maria Wennman, Solna, SE;

Assignee:

ORGANOCLICK AB, Taby, SE;

Attorney:

Renner, Otto, Boisselle & Sklar, LLP

Primary Examiner:

Alexander M Weddle

Int. Cl.
CPC ...
C08L 5/08 (2006.01); D06B 1/00 (2006.01); D06M 15/03 (2006.01); C08L 1/28 (2006.01); D21H 23/22 (2006.01); D21H 23/54 (2006.01); D21H 23/56 (2006.01); D21H 23/62 (2006.01); D21H 23/50 (2006.01); D21H 23/34 (2006.01); C08K 3/013 (2018.01); C08K 3/36 (2006.01); C08K 5/07 (2006.01); C08K 5/09 (2006.01); C08K 5/10 (2006.01); D21H 17/24 (2006.01); D21H 19/44 (2006.01); C08L 57/00 (2006.01); C08L 67/04 (2006.01); C08L 89/00 (2006.01);
U.S. Cl.
CPC ...
D06M 15/03 (2013.01); C08K 3/013 (2018.01); C08K 3/36 (2013.01); C08K 5/07 (2013.01); C08K 5/09 (2013.01); C08K 5/10 (2013.01); C08L 1/286 (2013.01); C08L 5/08 (2013.01); D06B 1/00 (2013.01); D21H 5/003 (2013.01); D21H 5/0005 (2013.01); D21H 5/0027 (2013.01); D21H 5/0037 (2013.01); D21H 5/0047 (2013.01); D21H 17/24 (2013.01); D21H 19/44 (2013.01); D21H 23/34 (2013.01); D21H 23/62 (2013.01); C08K 2201/005 (2013.01); C08L 57/00 (2013.01); C08L 67/04 (2013.01); C08L 89/00 (2013.01);
Abstract

The present invention relates to a bio-based polyelectrolyte complex (PEC) composition suitable as a binder for fiber based materials, textiles, woven and nonwoven materials, said PEC composition comprising cationic biopolymer, anionic biopolymer, acid and preservative, and wherein the net charge of the PEC is cationic, the charge ratio of the anionic polymer and the cationic polymer is ≤1, the cationic biopolymer is chitosan, the anionic biopolymer is a polyanion derived from nature, the acid is a Brønsted acid and/or a Lewis acid, wherein the Brønsted acid is selected from any organic and/or inorganic acids, and wherein the Lewis acid is selected from any cationic mono- or multivalent atom, the weight ratio between cation and anion is 1:0.1 to 1:20, the weight ratio between the cation and acid is 1:0.01 to 1:30, chitosan has a degree of deacetylation being 66-100%, the pH is less than 7, and wherein said composition further comprises one or more non-water soluble particles. The present invention further relates to a method for preparing the PEC composition, uses of the PEC composition, as well as method of treating materials with the PEC composition.

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