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 |
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Erscheinungsjahr: |
2019 |
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Erschienen: |
2019 |
Enthalten in: |
Europäisches Patentamt - (2019) vom: 31. Jan. Zur Gesamtaufnahme - year:2019 |
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Sprache: |
Englisch |
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Beteiligte Personen: |
XU WENJUN [VerfasserIn] |
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Links: |
Volltext [kostenfrei] |
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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 |
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Patentnummer: |
WO2019022913 |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
EPA004772059 |
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520 | |a 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. | ||
650 | 4 | |a A61Q: Specific use of cosmetics or similar toilet preparations | |
650 | 4 | |a che | |
650 | 4 | |a 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) | |
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