Cross-linked polymer of carbohydrate, notably based on polysaccharides, and/or on oligosaccharides and/or on polyols
AssigneeBASF Beauty Care Solutions France S.A.S.
InventorsEric Perrier, Nabil Abdul-Malak, Julie Saget
Life of this patent
Estimating the term…
Abstract
The invention discloses a cross-linked polymer of at least one carbohydrate component comprising at least one primary alcohol function in particular for the manufacture of a composition which is intended to be applied onto the skin to obtain a tensing and/or toning effect.
Claims19
A method for manufacturing a cross-linked polymer, comprising cross-linking in a homogenous aqueous phase at least one primary alcohol functional group of xanthan with at least one reactive functional group of sebacic acid dichloride to obtain a cross-linked polymer, wherein the molar ratio of xanthan with respect to sebacic acid dichloride in the homogenous aqueous phase is less than 0.1.
A method for manufacturing a cross-linked polymer, comprising (1) dissolving xanthan in an aqueous phase to form a xanthan solution, and (2) admixing the xanthan solution of (1) with a phase comprising sebacic acid dichloride to form a homogenous aqueous phase for a period of time sufficient to obtain a cross-linked polymer having a molecular weight of at least 50,000 Daltons, wherein the molar ratio of xanthan with respect to sebacic acid dichloride in the homogenous aqueous phase is less than 0.1.
A cross-linked polymer, other than a cross-linked polymer obtained by interfacial polymerization in an emulsion for the manufacture of spheres and capsules, prepared by cross-linking the primary alcohol functional groups of xanthan with sebacic acid dichloride in a homogenous aqueous phase, wherein the molar ratio of xanthan with respect to sebacic acid dichloride in the homogenous aqueous phase is less than 0.1.
A cross-linked polymer prepared by (1) dissolving xanthan in an aqueous phase to form a xanthan solution, (2) admixing the xanthan solution of (1) with a phase comprising sebacic acid dichloride to form a homogenous aqueous phase for a period of time sufficient to obtain a cross-linked polymer having a molecular weight of at least 50,000 Daltons, wherein the molar ratio of xanthan with respect to sebacic acid dichloride in the homogenous aqueous phase is less than 0.1.
Dependencies are inferred from the claim text.