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1. EP3962439 - POLYMER/HYDROPHILIC SILICA OIL BLEND

Office
European Patent Office
Application Number 20722983
Application Date 16.04.2020
Publication Number 3962439
Publication Date 09.03.2022
Publication Kind A1
IPC
A61K 8/25
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
19containing inorganic ingredients
25Silicon; Compounds thereof
A61K 8/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
A61K 8/81
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
A61Q 19/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
19Preparations for care of the skin
CPC
A61K 8/25
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
19containing inorganic ingredients
25Silicon; Compounds thereof
A61K 8/8152
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
8141Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
8152Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
A61K 8/022
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
0216Solid or semisolid forms
022Powders; Compacted Powders
A61Q 19/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
19Preparations for care of the skin
A61K 2800/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
2800Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
10General cosmetic use
A61K 2800/48
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
2800Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
40Chemical, physico-chemical or functional or structural properties of particular ingredients
48Thickener, Thickening system
Applicants DOW GLOBAL TECHNOLOGIES LLC
ROHM & HAAS
Inventors QI LUQING
CHEN LIANG
BAI LU
LEAL LYNDSAY M
MEUNIER DAVID M
CHEN YUNSHEN
ZENG FANWEN
Designated States
Priority Data 201962840486 30.04.2019 US
Title
(DE) POLYMERE/HYDROPHILE KIESELSÄUREÖLMISCHUNG
(EN) POLYMER/HYDROPHILIC SILICA OIL BLEND
(FR) MÉLANGE POLYMÈRE/HUILE DE SILICE HYDROPHILE
Abstract
(EN) 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.
(FR) L'invention concerne un mélange polymère/silice hydrophile qui comprend (a) une poudre de polymère épaississant, comprenant (i) des motifs structuraux de monomère de (méth)acrylate d'alkyle en C4 à 8 ; (ii) des motifs structuraux de monomère d'acide (méth)acrylique ; et (iii) des motifs structuraux d'un monomère associatif spécialisé de formule (I) dans laquelle R1 représente un groupe alkyle en C10 à 20 saturé linéaire et n représente une moyenne comprise entre 20 et 28 ; et (b) une poudre de silice hydrophile ; le rapport pondéral de la poudre de silice hydrophile par rapport à la poudre de polymère épaississant dans le mélange polymère/silice hydrophile étant compris entre 1:9 et 9:1. L'invention concerne également des compositions de soins personnels contenant ledit mélange et leurs procédés d'utilisation.