Title:
METHOD FOR PRODUCING A THIN-FILM NANOSTRUCTURE COMPOSED OF A POLYMERIC AMPHIPHILIC BLEND WITH A HIGH CONCENTRATION OF THE ORGANIC CORE AS A U.V. PROTECTION FILTER
Document Type and Number:
WIPO Patent Application WO/2017/112993
Kind Code:
A8
Abstract:
The present invention relates to a method for producing a thin-film nanostructure composed of a polymeric amphiphilic blend with a high concentration of the organic core for use against ultraviolet radiation, belonging to the field of cosmetics and pharmaceutical preparations of active substances characterised by special physical forms, involving three phases: an organic phase, an aqueous phase and an aqueous dilution phase, wherein in the organic phase an organic solvent such as ketones, esters and alcohols is used, or a combination of two or more of these substances, wherein the hydrophobic polymer, the organic chemical agents against U.V. radiation, the hydrophilic copolymer and a non-ionic surfactant are added individually; the aqueous phase is prepared with distilled water and a surfactant such as lauryl ether sodium sulphate or cocoamidopropyl betaine or coconut fatty acid diethanolamide or sorbitan laurate 80 EO, or cetyl phosphate; and the dilution phase is prepared with distilled water and surfactants, such as lauryl ether sodium sulphate or cocoamidopropyl betaine or coconut fatty acid diethanolamide or sorbitan laurate 80 EO.
Inventors:
FLOR JULIANA (BR)
SPINA MARCOS ROGÉRIO (BR)
NETO PEREIRA CERIZE NATÁLIA (BR)
MARIM DE OLIVEIRA ADRIANO (BR)
LANIGRA GUIMARÃES KLEBER (BR)
AMBRASIO ZANIN MARIA HELENA (BR)
ARAGÃO HOROIWA THAIS (BR)
SANTANA BALOGH TATIANA (BR)
CAROLLO MONCAYO PRISCILA (BR)
EMIDIO SIMONE ANDREA (BR)
MORETTI DA SILVA KARINA (BR)
SPINA MARCOS ROGÉRIO (BR)
NETO PEREIRA CERIZE NATÁLIA (BR)
MARIM DE OLIVEIRA ADRIANO (BR)
LANIGRA GUIMARÃES KLEBER (BR)
AMBRASIO ZANIN MARIA HELENA (BR)
ARAGÃO HOROIWA THAIS (BR)
SANTANA BALOGH TATIANA (BR)
CAROLLO MONCAYO PRISCILA (BR)
EMIDIO SIMONE ANDREA (BR)
MORETTI DA SILVA KARINA (BR)
Application Number:
PCT/BR2016/050353
Publication Date:
August 10, 2017
Filing Date:
December 27, 2016
Export Citation:
Assignee:
NATURA COSMETICOS SA (BR)
INST DE PESQUISAS TECNOLÓGICAS DO ESTADO DE SÃO PAULO S A - IPT (BR)
INST DE PESQUISAS TECNOLÓGICAS DO ESTADO DE SÃO PAULO S A - IPT (BR)
International Classes:
C08K3/22; A61K8/00; A61K8/06; A61K8/29; A61K8/34; A61K8/92; A61K8/97; A61K9/00; A61K9/14; A61Q17/00; A61Q17/04; B01J13/02; B01J13/04; B02C19/18; B29B9/00; B32B3/00; B32B27/00; B32B37/00; B82B3/00; B82Y30/00; C04B40/00; C09C3/04; C09C3/06; G01N33/00
Attorney, Agent or Firm:
DANNEMANN, SIEMSEN, BIGLER & IPANEMA MOREIRA (BR)
Download PDF: