公开(公告)号：US11910724B2

公开(公告)日：2024-02-20

申请号：US16763068

申请日：2018-11-08

Applicant: ISP INVESTMENTS LLC

Inventor： Philip John Oths ,  Shafiq Sahar Wahidi ,  Petros Gebreselassie ,  Hani M. Fares

IPC: A61K8/55 ,  A61K8/73 ,  A61K8/86 ,  A61Q11/00 ,  A61K8/34 ,  H10N50/85 ,  G11C11/16 ,  G11C11/15 ,  H10B61/00 ,  H10N50/10 ,  H10N50/01 ,  H10N50/80

CPC classification number: H10N50/85 ,  A61K8/55 ,  A61K8/731 ,  A61K8/86 ,  A61Q11/00 ,  G11C11/15 ,  G11C11/161 ,  H10B61/22 ,  A61K8/345 ,  G11C11/1659 ,  H10N50/01 ,  H10N50/10 ,  H10N50/80

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.

公开(公告)号：US10745502B2

公开(公告)日：2020-08-18

申请号：US15777813

申请日：2016-11-14

Applicant: ISP INVESTMENTS LLC

Inventor： Philip John Oths ,  Karyn B. Visscher ,  Fu Chen ,  Petros Gebreselassie ,  William E. Prosise ,  Shafiq Sahar Wahidi

IPC: C08F220/36 ,  A61Q11/00 ,  C08F226/10 ,  A61K8/81 ,  A61Q11/02 ,  C08F220/28

Abstract: The present invention provides a water-soluble or water-dispersible polymers. The water -soluble or water-dispersible polymer comprise a first monomer having hydrogen bonding/complexing properties to polyphenols, a second monomer having detergent properties, and a third monomer having hydrogen bonding/complexing properties to polyphenols, wherein the first monomer and the third monomer are the same or different. The present invention also provides oral care compositions comprising the water-soluble or water-dispersible polymers. The present invention also provides methods of cleaning, Whitening arid polishing natural teeth and dental prosthesis and of preventing, reducing or removing surface deposited stains from teeth by administering the oral care compositions. The water-soluble or water-dispersible polymer has a structure: wherein x, y, z, mole %, n, R1, and R2 are defined herein.