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US 6,548,170 B2Granted
Treated water-insoluble solid particles, preparation and use
AssigneeColetica
InventorsEric Perrier, Lysiane Tholon, Nabil Abdul Malak
Life of this patent
Estimating the term…
Abstract
The present invention relates to water-insoluble solid particles, especially pigments, which characteristically are coated with at least one layer of at least one product resulting from the reaction between at least one molecule capable of becoming hydrated in contact with water and at least one lipophilic molecule. It further relates to cosmetic, pharmaceutical and agricultural compositions comprising such particles and to the manufacture and use of said particles.
Claims50
A water-insoluble, coated, solid particle, comprising:
- a water-insoluble solid particle which is coaled with at least one layer of at least one product resulting from the reaction between:
- a. at least one molecule hydratable in contact with water selected from the group consisting of a peptide, a protein, a polysaccharide, an oligosaccharide, a gum, a vinylic polymer and a fluorinated polymer;
- and
- b. at least one lipophilic molecule
- wherein the at least one lipophilic molecule is grafted onto the hydratable molecule.
2 more elements
A coated water-insoluble pigment comprising:
- at least one water insoluble pigment which is coated with at least one layer of at least one product resulting from the reaction between:
- a) at least one molecule hydratable in contact with water selected from the group consisting of a peptide, a protein, a polysaccharide, an oligosaccharide, a gum, a vinylic polymer and a fluorinated polymer;
- and
- b) at least one lipophilic molecule.
1 more element
A coated water-insoluble solid particle comprising:
- at least one water-insoluble solid particle coated with at least one layer of at least one product resulting from the reaction between
- a) at least one hydratable molecule selected from the group consisting of a peptide, a protein, a polysaecharide, an oligosaccharide, a gum, a vinylic polymer and a fluorinated polymer;
- and
- b) at least one lipophilic molecule, wherein said lipophilic molecule comprises a halide of a fatty acid selected from the group consisting of butyric acid, capric acid, caprylic acid, decanoic acid, lauric acid, stearic acid, myristic acid, palmitic acid, oleic acid, linoleic acid, linolenic acid, undecylenic acid and undecanoic acid;
- wherein the at least one lipophilic molecule is grafted onto the hydratable molecule;
- wherein said solid particle is selected from the group consisting of a white organic pigment, a colored organic pigment, a white mineral pigment, a colored mineral pigment, titanium dioxide, zinc oxide, chromium oxide a black iron oxide, a yellow iron oxide, a blue iron oxide, a mineral filler, a make-up mineral filler, talcum, kaolin, mica, boron nitride, nylon beads, silica and silica beads.
3 more elements
A cosmetic composition comprising:
- at least one coated water-insoluble solid particle, comprising at least one water-insoluble solid particle coated with at least one layer of at least one reaction product resulting from the reaction between a molecule hydratable in contact with water selected from the group consisting of a peptide, a protein, a polysaccharide, an oligosaccharide, a gum, a vinylic polymer and a fluorinated polymer;
- and at least one lipophilic molecule, wherein the at least one lipophilic molecule is grafted onto the hydratable molecule;
- and
- at least one cosmetically acceptable excipient.
1 more element
A pharmaceutical composition comprising:
- at least one coated water-insoluble solid particle, comprising at least one water-insoluble solid particle coated with at least one layer of at least one reaction product resulting from the reaction between a molecule hydratable in contact with water selected from the group consisting of a peptide, a protein, a polysaccharide, an oligosaccharide, a gum, a vinylic polymer and a fluorinated polymer;
- and at least one lipophilic molecule, wherein the at least one lipophilic molecule is grafted onto the hydratable molecule;
- and
- at least one pharmaceutically acceptable excipient.
1 more element
A food composition comprising:
- at least one water-insoluble solid particle acceptable in food, coated with at least one layer of at least one reaction product resulting from the reaction between a molecule hydratable in contact with water and at least one lipophilic molecule, wherein the at least one lipophilic molecule is grafted onto the hydratable molecule;
- and
- at least one food compatible product.
An agricultural composition comprising:
- at least one coated water-insoluble solid particle, comprising at least one water-insoluble solid particle coated with at least one layer of at least one reaction product resulting from the reaction between at least one molecule hydratable in contact with water and at least one lipophilic molecule, wherein the at least one lipophilic molecule is grafted onto the hydratable molecule;
- and
- at least one agriculturally acceptable excipient.
A process for the manufacture of coated water-insoluble solid particles comprising:
- coating a water-insoluble solid particle with a reaction product, wherein said reaction product results from the reaction between a molecule hydratable in contact with water selected from the group consisting of a peptide, a protein, a polysaccharide, an oligosaccharide, a gum, a vinylic polymer and a fluorinated polymer;
- and a lipophilic molecule, wherein lipophilic molecule is grafted onto the hydratable molecule in an aqueous medium.
Dependencies are inferred from the claim text.