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.

Date of Patent:
Jan. 16, 2024

Filed:

May. 29, 2019
Applicants:

Dow Global Technologies Llc, Midland, MI (US);

Rohm and Haas Company, Collegeville, PA (US);

Inventors:

Puspendu Deo, Pearland, TX (US);

Graham P. Abramo, Penllyn, PA (US);

Kaylie L. Young, Sugar Land, TX (US);

Somil Chandrakant Mehta, Mumbai, IN;

Assignees:

DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);

ROHM AND HAAS COMPANY, Collegeville, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 5/10 (2023.01); C08F 220/06 (2006.01); C08F 220/28 (2006.01); C08F 220/58 (2006.01);
U.S. Cl.
CPC ...
C02F 5/10 (2013.01); C08F 220/06 (2013.01); C08F 220/286 (2020.02); C02F 2303/22 (2013.01); C08F 220/585 (2020.02);
Abstract

A method for inhibiting silica scale formation which treats aqueous systems containing silica with a bottle brush polymer. The bottle brush polymer includes a repeat unit obtained after polymerization of one or more anionic monomers, and a repeat unit obtained after polymerization of one or more polyoxoalkylene-containing monomers. The bottle brush polymer may further include a repeat unit obtained after polymerization of one or more nonionic monomers. The addition of the bottle brush polymer to the aqueous system results in the inhibition of silica scale.


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