Personal care formulation

US12370134B2 · kind B2 · utility

Assignees

• DOW GLOBAL TECHNOLOGIES LLC · US
• Rohm and Haas Company · US
• Dow Silicones Corporation · US

Inventors

• Tian Lan · Langhorne, US
• Fanwen Zeng · Montgomery, US
• Xiaodong Lu · Richmond, CA
• Inna Shulman · Cadillac, US
• Michaeleen L. Pacholski · Collegeville, US
• Isabelle Van Reeth · Shanghai, CN
• Helene Dihang · Malplaquet, FR
• Tanvi S. Ratani · Pittsburgh, US
• Jason S. Fisk · Freeland, US
• Tzu-Chi Kuo · Keelung, TW
• Rachael M. Smith · Douglassville, US

Key dates

• Filing date: Nov 18, 2020
• Grant date: Jul 29, 2025
• Expiry date: Jan 11, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/43
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Personal care formulation is provided having multistage polymer, comprising: acrylate rich stage comprising: (a) structural units of monomer selected from C1-22 alkyl (meth)acrylates and structural units of first carbosiloxane monomer of formula (I); and (b) carbosiloxane rich stage, comprising: structural units of second carbosiloxane monomer of formula (I); wherein a is 0 to 3; wherein d is 0 or 1; wherein R1 is selected from hydrogen, C1-10 alkyl group and aryl group; wherein R2 is selected from hydrogen and C1-10 alkyl group; wherein R8 is —O—Si(CH3)3 group; wherein Y is selected from formula (II), (III) and (IV); wherein R4 and R6 are selected from hydrogen and methyl group; wherein R3 and R5 are C1-10 alkylene group; wherein R7 is C1-10 alkyl group; wherein b is 0 to 4 and wherein c is 0 or 1; and wherein the first and second carbosiloxane monomer of formula (I) are same or different.