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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 11459419 B1

PDFFull Text
Date of Patent:
Oct. 04, 2022

Filed:

Dec. 18, 2018

Waterborne dispersions

Applicant:

Covestro (Netherlands) B.v., Geleen, NL;

Inventors:

Michael Arnoldus Jacobus Schellekens, Echt, NL;

Johannes Hendrikus De Bont, Echt, NL;

John Barbosa, Echt, NL;

Jon Andrew Cronin, Echt, NL;

Charles Shearer, Echt, NL;

Matthew Stewart Gebhard, Echt, NL;

Gerardus Cornelis Overbeek, Echt, NL;

Assignee:

COVESTRO (NETHERLANDS) B.V., Geleen, NL;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Robert C Boyle

Int. Cl.
CPC ...
C08K 3/22 (2006.01); C08F 293/00 (2006.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/056 (2020.01); C08J 7/04 (2020.01); C08L 33/10 (2006.01); C09D 5/02 (2006.01); C09D 151/00 (2006.01); C09D 153/00 (2006.01); C08F 220/18 (2006.01); C08F 2/22 (2006.01); C08F 220/06 (2006.01); C08F 220/14 (2006.01); C08F 220/56 (2006.01); C08F 287/00 (2006.01); C08K 5/00 (2006.01); C08L 53/00 (2006.01);
U.S. Cl.
CPC ...
C08F 293/005 (2013.01); C08F 2/22 (2013.01); C08F 220/06 (2013.01); C08F 220/14 (2013.01); C08F 220/1804 (2020.02); C08F 220/56 (2013.01); C08F 287/00 (2013.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/0427 (2020.01); C08J 7/056 (2020.01); C08K 3/22 (2013.01); C08K 5/0025 (2013.01); C08L 33/10 (2013.01); C08L 53/00 (2013.01); C09D 5/022 (2013.01); C09D 151/003 (2013.01); C09D 153/00 (2013.01); C08F 2438/03 (2013.01); C08J 2327/06 (2013.01); C08J 2433/10 (2013.01); C08J 2453/00 (2013.01); C08K 2003/2241 (2013.01); C08L 2201/54 (2013.01);
Abstract

The present invention relates to a waterborne dispersion comprising (A) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (B) polymer P comprising ethylenically unsaturated monomer(s) different from (i) (monomer(s) (ii)), characterized in that the amount of block copolymer is higher than 1 and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and at most 35 mg KOH per g of the block copolymer-polymer P composition; the block copolymer has a calculated glass transition temperature of higher than 10° C. and lower than 250° C.; and polymer P comprises at least 20 wt. % (relative to the total monomer composition to prepare the polymer P) of a polymer fraction with calculated glass transition temperature higher than 10° C. and lower than 100° C.

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