Oil-in-water emulsions with increased viscosity under shear stress
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorAchim Ansmann
Life of this patent
Estimating the term…
Abstract
Oil-in-water emulsions show improved viscosity behavior, more especially an increased viscosity under shear stress, when the continuous aqueous phase contains a combinations of hydrocolloids comprising: (a) at least one water-soluble nonionic cellulose ether; and (b) a cross-linked acrylic acid polymer or copolymer having a weight average molecular weight of from 1,000,000 to 5,000,000; in the form of a water-soluble salt in a quantitative ratio a:b of from 9:1 to 1:9. Cosmetic O/W-creams according to the invention show more "body" when applied to and spread over the skin.
Claims20
An oil-in-water emulsion having increased viscosity under shear stress comprising a continuous aqueous phase and a discontinuous oil phase, wherein said continuous aqueous phase contains a combination of hydrocolloids consisting essentially of:
- (a) at least one water-soluble nonionic cellulose ether;
- and
- (b) at least on water-soluble salt of a crosslinked acrylic acid polymer or acrylic acid copolymer having a weight average molecular weight of about 1,000,000 to 5,000,000,
- in a ratio a:b by weight of about 9:1 to about 1:9.
Dependencies are inferred from the claim text.