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:
Feb. 20, 2024
Filed:
Nov. 08, 2018
Isp Investments Llc, Wilmington, DE (US);
Philip John Oths, Mendham, NJ (US);
Shafiq Sahar Wahidi, Pomona, NY (US);
Petros Gebreselassie, Whitehouse Station, NJ (US);
Hani M. Fares, Somerset, NJ (US);
ISP INVESTMENTS LLC, Wilmington, DE (US);
Abstract
A substantially anhydrous thickener system in the form of a gel for use in oral care compositions comprising: carboxymethyl cellulose or its salts thereof, a chelating agent, and hydroxyethyl cellulose, in a solvent system, wherein the thickener system is heated to a temperature ranging from about 70° C. to about 120° C. to form the gel. A method of preparing the thickener system for use in oral care compositions comprises the steps of: a) charging a mixture of hydroxyethyl cellulose and carboxymethyl cellulose into a reaction container, b) dissolving the mixture of a) in a solvent system, c) charging a chelating agent into b), and d) heating the resultant of c) to a temperature of 70°-120° C. for at least about 10 minutes.