Biosourced gelled composition of hydrocarbon oil and gelling polymer
A gelled composition includes at least 50% by weight of at least one hydrocarbon oil that includes a content by weight of isoparaffins ranging from 90 to 100%, a content by weight of normal paraffins ranging from 0 to 10% and a content of carbon of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, and at least 1% by weight of at least one gelling agent chosen from among: polymers chosen from homopolymers and copolymers obtained from at least one monomer chosen from among isoprene, butadiene, styrene and (meth)acrylates, and the mixtures of same, and non-polymer gelling agents, relative to the total weight of the gelled composition.
1. A gelled composition consisting of:
from 70 to 90% by weight of at least one hydrocarbon oil that has a content by weight of isoparaffins ranging from 95 to 100%, a content by weight of normal paraffins ranging from 0 to 5%, a content by weight of naphthenic compounds less than or equal to 1%, a content by weight of aromatic compounds less than or equal to 300 ppm, and a content of carbon of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil, wherein the hydrocarbon oil has a boiling temperature ranging from 230 to 340° ° C., according to the standard ASTM D86, wherein the hydrocarbon oil has a flash point greater than or equal to 110° C. according to the standard EN ISO 2719 and a vapor pressure at 20° C. less than or equal to 0.01 kPa, and
from 10 to 30% by weight of at least one gelling polymer chosen from among diblock copolymers comprising at least one styrene monomer and at least one monomer chosen from among ethylene, propylene, butadiene, and isoprene,
relative to the total weight of the gelled composition,
wherein the hydrocarbon oil comprises:
isoparaffins having 16 carbon atoms, isoparaffins having 17 carbon atoms and isoparaffins having 18 carbon atoms in a combined quantity ranging from 80 to 98% by weight, relative to the total weight of the hydrocarbon oil, or
isoparaffins having 17 carbon atoms and isoparaffins having 18 carbon atoms in a combined quantity ranging from 80 to 98% by weight, relative to the total weight of the hydrocarbon oil.
2. The gelled composition according to claim 1 , wherein the gelling polymer is chosen from among styrene/butadiene copolymers, styrene/isoprene copolymers, hydrogenated styrene/butadiene copolymers, hydrogenated styrene/isoprene copolymers, hydrogenated polyisoprene crosspolymers, polyisoprene homopolymers, hydrogenated styrene thermoplastic homopolymers, liquid rubbers, and mixtures thereof.
3. The gelled composition according to claim 1 , wherein the hydrocarbon oil is chosen from among non-cyclic isoparaffins comprising from 14 to 18 carbon atoms.
4. The gelled composition according to claim 1 , wherein the hydrocarbon oil comprises:
a content by weight of isoparaffins ranging from 98 to 100% relative to the total weight of the hydrocarbon oil;
a content of carbon of biological origin greater than or equal to 95%;
a content by weight of normal paraffins less than or equal to 2% relative to the total weight of the hydrocarbon oil; and/or
a content by weight of naphthenic compounds less than or equal to 0.5%, relative to the total weight of the hydrocarbon oil; and/or
a content by weight of aromatic compounds less than or equal to 100 ppm relative to the total weight of the hydrocarbon oil; and/or
a biodegradability at 28 days of at least 60%, measured according to the standard OECD 306.
5. The gelled composition according to claim 1 , wherein the hydrocarbon oil is obtained by a method of catalytic hydrogenation at a temperature from 80 to 180° C. and at a pressure from 50 to 160 bars of a deoxygenated and/or isomerised feedstock of biological origin.
6. A cosmetic, dermatological or pharmaceutical composition comprising at least one gelled composition according to claim 1 .
7. The cosmetic, dermatological or pharmaceutical composition according to claim 6 , comprising at least one fatty substance chosen from among: vegetable oils, hydrocarbon oils other than the hydrocarbon oil of the gelled composition, vegetable butters, fatty alcohols and ethers, oily esters, alkanes and silicone oils and/or at least one additive.
8. A method for the treatment of the skin or hair or lips, comprising a step of topically applying the gelled composition according to claim 1 , or a cosmetic, dermatological or pharmaceutical composition including said gelled composition according to claim 1 .
9. The method according to claim 8 , comprising a step of anti-ageing treatment.
10. A method of therapeutic treatment comprising administering the gelled composition according to claim 1 or a cosmetic, dermatological or pharmaceutical composition including said gelled composition according to claim 1 as a drug.
11. The method according to claim 10 , comprising administering the gelled composition or the cosmetic, dermatological or pharmaceutical composition as an antioxidant and/or anti-radical agent and/or anti-inflammatory agent and/or anti-apoptotic and/or antibacterial and/or antifungal agent.
12. The cosmetic, dermatological or pharmaceutical composition according to claim 6 , comprising the gelled composition in a quantity ranging from 0.5 to 80% by weight relative to the total weight of the composition.
13. The method according to claim 8 , wherein the gelled composition or the cosmetic, dermatological or pharmaceutical composition is applied as a care product for the skin or hair, as a make-up product, as a hair care product, as a makeup remover, as a perfumed product, as a sunscreen product, as a lip care product.
14. The gelled composition according to claim 1 , having a viscosity measured at 23° C. ranging from 3 to 750,000 mPa·s.