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.:
Date of Patent:
Apr. 05, 2022
Filed:
Oct. 18, 2018
Dow Global Technologies Llc, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
Lin Wang, Furlong, PA (US);
Anurima Singh, Manvel, TX (US);
Scott Backer, Phoenixville, PA (US);
Wei Gao, Fort Washington, PA (US);
Steven G. Arturo, Bala Cynwyd, PA (US);
Ivan A. Konstantinov, Manvel, TX (US);
Paul Mercando, Pennsburg, PA (US);
Dow Global Technologies LLC, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
Abstract
An automatic dishwashing composition is provided including a builder selected from the group consisting of carbonate, bicarbonate, citrate, silicate and mixtures thereof; a nonionic surfactant; and a dispersant polymer comprising: (a) 5 to 75 wt % of structural units of itaconic acid; (b) 10 to 85 wt % of structural units having formula I wherein each Ris independently selected from a hydrogen and a —C(O)CHgroup; and (c) 10 to 65 wt % of structural units of (meth)acrylic acid; wherein the dispersant polymer has a lactone end group and wherein the dispersant polymer has a weight average molecular weight of 1,500 to 6,000.