HICKS, Jake Thomas,DEMURTAS, Marco,ELMS, Christopher John,TOMLINSON, Paul James,BELL, Michael David
申请号：
EPEP2019/025254
公开号：
WO2020/035168A1
申请日:
2019.08.05
申请国别(地区):
EP
年份:
2020
代理人:
摘要：
According to the present invention there is provided composition in the form of an oil-in-water emulsion having a viscosity of between 15,000 cP (15 Pa-s) and 45,000 cP (45 Pa-s) at 23 °C, having a pH of between 2 and 6 and comprising: (i) at least 1.6 wt. % of at least one cross-linked anionic polyelectrolyte resulting from the polymerisation of partially or completely salified 2 -methyl 2-[(l -oxo 2-propenyl)amino] 1 -propane sulfonic acid, with at least one neutral monomer chosen from the N,N- dialkyl acrylamides, wherein each of the alkyl groups comprises between one and four carbon atoms, and at least one monomer of formula (B): wherein R represents a linear or branched alkyl radical comprising eight to twenty carbon atoms and n represents a number greater than or equal to one and less than or equal to twenty, in the presence of at least one cross-linking agent； (ii) at least 4 wt. % of at least one polysorbate； (iii) at least 0.1 wt. % of at least one polysaccharide gum； and (iv) between 6 wt. % and 30 wt. % water. The present invention also provides a composition as defined above obtainable by a process comprising the following steps: (a) in one vessel, homogenising the polysaccharide gum (iii) into the aqueous phase comprising the water at a temperature of between 60 °C and 90 °C； (b) in a vessel separate from that in (a), homogenising the cross-linked anionic polyelectrolyte (i) and the polysorbate (ii) into the oil phase at a temperature of between 60 °C and 90 °C； and (c) combining the ingredients of (a) with the ingredients of (b) through homogenisation at a temperature of between 60 °C and 90 °C.Selon la présente invention, il est décrit une composition sous la forme d'une émulsion huile dans eau présentant une viscosité comprise entre 15 000 cP (15 Pa-s) et 45 000 cP (45 Pa-s) à 23 °C, ayant un pH compris entre 2 et 6 et comprenant : (i) au moins 1,6 % en poids d'au moins un polyélectrolyte anionique réticulé résultant de la polymérisation de l'acide 2
