Cosmetic compositions comprising at least one polyvinyl alcohol, and processes for preparing said compositions
OwnerFlorence L'Alloretinventor
Life of this patent
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Abstract
Cosmetic compositions, such as solid aqueous cosmetic compositions, such as solid aqueous gels, comprising, in a cosmetically acceptable medium, at least one polyvinyl alcohol, wherein said compositions have a stress measurement ranging from 200 to 10,000 Pascals. Processes for preparing such compositions comprising (1) cooling a homogeneous aqueous solution of at least one polyvinyl alcohol to a temperature of less than or equal to −5° C., and (2) heating said solution to a temperature of 20-25° C.
Claims53
A solid aqueous cosmetic composition comprising, in a cosmetically acceptable medium, at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 19
- and optionally comprising at least one polymeric unit of formula (II):
- 20
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol in a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said composition has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
A solid emulsion composition, an oil-in-water dispersion composition, a multi-phase system composition, a stick composition, or a tube composition comprising, in a cosmetically acceptable medium, at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 21
- and optionally comprising at least one polymeric unit of formula (II):
- 22
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol in a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said composition has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
A body hygiene composition, a hair composition, a make-up composition for facial or body skin or for mucous membranes, a care composition for the skin or mucous membranes, an antisun composition or a self-tanning composition comprising a solid aqueous cosmetic composition which comprises, in a cosmetically acceptable medium, at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 23
- and optionally comprising at least one polymeric unit of formula (II):
- 24
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol in a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said composition has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
A lipstick, a stick foundation, a foundation cast in a dish, a face powder, an eyeshadow, a lipstick-fixing base, a concealer stick, a lip gloss, an eyeliner, a mascara, or a temporary tattoo product comprising, in a cosmetically acceptable medium, a solid aqueous cosmetic composition comprising at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 25
- and optionally comprising at least one polymeric unit of formula (II):
- 26
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol in a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said lipstick, stick foundation, foundation cast in a dish, face powder, eyeshadow, lipstick-fixing base, concealer stick, lip gloss, eyeliner, mascara, or temporary tattoo product has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
A lipcare base, a body ointment, or a care stick comprising, in a cosmetically acceptable medium, at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 27
- and optionally comprising at least one polymeric unit of formula (II):
- 28
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol in a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said lipcare base, body ointment, or care stick has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
A process for manufacturing at least one solid aqueous cosmetic composition comprising at least one cooling/heating cycle, which comprises:
- (1) cooling a homogeneous aqueous solution of at least one polyvinyl alcohol to a temperature of less than or equal to −5° C. and (2) heating said solution to a temperature ranging from 20-25° C., wherein said at least one solid aqueous cosmetic composition comprises at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 29
- and optionally comprising at least one polymeric unit of formula (II):
- 30
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol in a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said composition has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
A cosmetic treatment process for at least one support chosen from facial skin, body skin, mucous membranes, and keratin fibers comprising applying to said at least one support a solid aqueous cosmetic composition comprising, in a cosmetically acceptable medium, at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 31
- and optionally comprising at least one polymeric unit of formula (II):
- 32
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol in a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said composition has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
A cosmetic treatment process for at least one support chosen from facial skin, body skin, mucous membranes, and keratin fibers comprising applying to said support a solid aqueous cosmetic composition obtained by a process comprising (1) cooling a homogeneous aqueous solution of at least one polyvinyl alcohol to a temperature of less than or equal to −5° C. and (2) heating said solution to a temperature ranging from 20-25° C.
A solid aqueous gel comprising, in a cosmetically acceptable medium, at least one polyvinyl alcohol comprising polymeric units of formula (I):
- 33
- and optionally comprising at least one polymeric unit of formula (II):
- 34
- wherein said at least one polymeric unit of formula (II) is present in said at least one polyvinyl alcohol a maximum amount of 5 mol % relative to said at least one polyvinyl alcohol,
- and wherein said gel has a stress measurement ranging from 200 to 10,000 Pascals (N/m2).
Dependencies are inferred from the claim text.