AN SPF BOOSTER FOR USE IN ALCOHOL BASE SUNSCREEN FORMULATIONS

An SPF booster is provided, comprising: a multistage polymeric particle having a core comprising polymerized units of a monoethylenically unsaturated carboxylic acid core monomer and a non ionic ethylenically unsaturated core monomer; an inner shell comprising polymerized units of a non ionic ethylenically unsaturated inner shell monomer; a monoethylenically unsaturated carboxylic acid inner shell monomer and an aliphatic inner shell monomer; an outer shell comprising polymerized units of a non ionic ethylenically unsaturated outer shell monomer; an aliphatic outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer and an ethylenically unsaturated surfactant outer shell monomer; wherein the core, when dry, contains a void; and wherein the multistage polymeric particle has an average particle size, when dry, of 50 to 1,000 nm..

Medienart:

Patent

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Europäisches Patentamt - (2019) vom: 31. Jan. Zur Gesamtaufnahme - year:2019

Sprache:

Englisch

Beteiligte Personen:

XU WENJUN [VerfasserIn]
ZENG FANWEN [VerfasserIn]
YEZER BENJAMIN [VerfasserIn]
CHEN LIANG [VerfasserIn]
SCHMIDT DALE C [VerfasserIn]
SHULMAN INNA [VerfasserIn]

Links:

Volltext [kostenfrei]

Themen:

615
A61K: Preparations for medical, dental, or toilet purposes (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms a61j0003000000;chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles a61l; soap compositions c11d)
A61Q: Specific use of cosmetics or similar toilet preparations
Che

Anmerkungen:

Source: www.epo.org (no modifications made), First posted: 2019-01-31, Last update posted on www.tib.eu: 2022-07-01, Last updated: 2023-02-09

Patentnummer:

WO2019022913

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

EPA004772059