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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 11542187 B1

PDFFull Text
Date of Patent:
Jan. 03, 2023

Filed:

Jan. 24, 2020

Composition and method for controlling scale in industrial water systems

Applicant:

Nouryon Chemicals International B.v., Arnhem, NL;

Inventor:

Klin Aloysius Rodrigues, Signal Mountain, TN (US);

Assignee:

NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem, NL;

Attorney:

Norris McLaughlin, P.A.

Primary Examiner:

Clare M Perrin

Int. Cl.
CPC ...
C02F 5/12 (2006.01); C02F 5/14 (2006.01); C08F 12/32 (2006.01); C08F 28/02 (2006.01); C08F 30/02 (2006.01); C08F 228/02 (2006.01); C08F 230/02 (2006.01); C02F 103/02 (2006.01); C07C 309/72 (2006.01); C09K 11/06 (2006.01); C07C 15/38 (2006.01);
U.S. Cl.
CPC ...
C02F 5/12 (2013.01); C02F 5/14 (2013.01); C08F 12/32 (2013.01); C08F 28/02 (2013.01); C08F 30/02 (2013.01); C08F 228/02 (2013.01); C08F 230/02 (2013.01); C02F 2103/023 (2013.01); C07C 15/38 (2013.01); C07C 309/72 (2013.01); C09K 11/06 (2013.01);
Abstract

A fluorescent water treatment polymer comprises at least one water soluble carboxylic acid monomer other than maleic acid, at least one sulfonated pyrene-containing fluorescent monomer, and at least one phosphino group wherein the phosphorous atom of the phosphino group is in the polymer backbone. Additional monomers can be present, with the proviso that if maleic acid is present it comprises no greater than 75 mol % of the polymer. Surprisingly, it has been found that when the phosphino group is present the polymers exhibit an unexpectedly strong fluorescent signal strength. The signal strength of the fluorescent monomer in the polymer is further enhanced when the polymer comprises no greater than 75 mol % maleic acid.

Find Patent Forward Citations

Rodrigues, Klin. (2023). Composition and method for controlling scale in industrial water systems (U.S. Patent No. 11542187). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11542187

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

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