Patent · US Active

Polymer/hydrophilic silica oil blend

US11931447B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignees

DOW GLOBAL TECHNOLOGIES LLC · US
Rohm and Haas Company · US

Inventors

Luqing Qi · Midland, US
Liang Chen · Midland, US
Lu Bai · Nanhu, CN
Lyndsay M. Leal · Spring City, US
David M. Meunier · Midland, US
Yunshen Chen · Lexington, US
Fanwen Zeng · Montgomery, US

Key dates

Filing date	Apr 16, 2020
Grant date	Mar 19, 2024
Priority date	—
Expiry date	Mar 28, 2041

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/48
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A polymer/hydrophilic silica blend is provided comprising (a) a thickening polymer powder, comprising (i) structural units of C4-8 alkyl (meth)acrylate monomer; (ii) structural units of (meth)acrylic acid monomer, and (iii) structural units of a specialized associative monomer of formula (I) wherein R1 is a linear saturated C10-20 alkyl group; and n is an average of 20 to 28; and (b) a hydrophilic silica powder; wherein the weight ratio of hydrophilic silica powder to thickening polymer powder in the polymer/hydrophilic silica blend is 1:9 to 9:1. Also provided are personal care compositions containing same and methods of using same.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.