摘要:
The invention relates to water-soluble block copolymers comprising at least one block of hydrophobic nature and at least one block of hydrophilic nature, the block of hydrophobic nature exhibiting hydrophilic units in an amount of between 33% and 99% by weight with respect to the total weight of the units of the hydrophobic block. These copolymers are preferably diblocks or triblocks and are prepared by a polymerization process referred to as a living or controlled. Control of their hydrophilic-lipophilic balance makes it possible to adjust their solubility in water and their self-association properties. These copolymers can be used in particular as adhesion agents or wetting agents.
摘要:
The invention relates to a gelling aqueous composition comprising block copolymers containing at least one water-soluble block and at least one block predominantly hydrophobic in nature, and forming a viscoelastic gel.
摘要:
The invention relates to a formulation comprising an ionic compound and a polyionic polymer. The invention more specifically relates to an improved formulation thereof, further comprising a copolymer. The improved formulation avoids phase-separation of colloidal particles comprising the ionic compound and the polyionic polymer. The formulation comprises a copolymer comprising two moieties A and B, wherein moiety A is polyionic in the pH conditions of the formulation, and moiety B is neutral in the pH conditions of the formulation.
摘要:
The invention relates to a formulation comprising an ionic compound and a polyionic polymer. The invention more specifically relates to an improved formulation thereof, further comprising a copolymer. The improved formulation avoids phase-separation of colloidal particles comprising the ionic compound and the polyionic polymer. The formulation comprises a copolymer comprising two moieties A and B, wherein moiety A is polyionic in the pH conditions of the formulation, and moiety B is neutral in the pH conditions of the formulation.
摘要:
The invention relates to a formulation comprising an ionic compound and a polyionic polymer. The invention more specifically relates to an improved formulation thereof, further comprising a copolymer. The improved formulation avoids phase-separation of colloidal particles comprising the ionic compound and the polyionic polymer. The formulation comprises a copolymer comprising two moieties A and B, wherein moiety A is polyionic in the pH conditions of the formulation, and moiety B is neutral in the pH conditions of the formulation.
摘要:
The invention relates to novel hybrid compounds containing at least one polysaccharide entity (PS), such as guar, in which at least one hydroxyl function is substituted by at least one A polyoxyalkylene entity (PEG). The swivel Ro between the entity PS and the entity A is obtained by click chemistry and has the following formula (IL1) or (IL2), in which Z is a carbon or nitrogen atom. These hybrid compounds can be used as emulsifiers, particularly in cosmetics.
摘要:
The invention relates to novel ampholytic copolymers having a controlled architecture. These copolymers can particularly be used in aqueous compositions.
摘要:
Compounds containing macromolecular chains and having a structured architecture are prepared by polymerization of macromolecular monomers containing diallylamine structural units.
摘要:
The invention concerns amphiphilic block copolymers, a process for making the same, and its use in emulsions. The block copolymers comprise a hydrophilic block and a hydrophobic block and can be used in emulsion as an emulsifier or as a co-emulsifier, particularly in water-in-oil emulsions.
摘要:
The invention concerns an aqueous composition comprising particles of a water-soluble or water-dispersible chemical microgel, associated with at least a water-soluble or water-dispersible crosslinking polymer, differing in composition from the particles; the amount of chemical microgel particles ranging between 0.05 to 40% by dry weight of the composition and the amount of crosslinking polymer being such that the viscosity of the composition is at least three times higher than that of an aqueous solution of chemical microgel particles and than that of an aqueous solution of crosslinking polymer, in similar conditions. The invention also concerns said composition, its use and formulations comprising same.