Process for the preparation of odourless polyether alcohols using DMC catalysts and their use in cosmetic and/or dermatological preparations
Cosmetic and/or dermatological preparations prepared using polyether alcohols, characterized in that, for the preparation of the polyether alcohol, a) a DMC catalyst is used and b) the polyether alcohols obtained in this way are not further treated.
1 . A cosmetic and/or dermatological preparation prepared using polyether alcohols, characterized in that, for the preparation of the polyether alcohols,
a) a DMC catalyst is used and
b) the polyether alcohols obtained in this way are not further treated.
2 . A cosmetic and/or dermatological preparation according to claim 1 , characterized in that a DMC catalyst is used in a concentration of less than 1000 wppm.
3 . A cosmetic and/or dermatological preparation according to claim 1 , characterized in that the polyether alcohols are pure polypropylene glycol alkyl ethers.
4 . A cosmetic and/or dermatological preparation according to claim 1 , characterized in that one or more polyether alcohols of the formula (I) are present,
R 1 —[O-(A) n -(B) m —H] x (I)
R 1 being a linear or branched alkyl radical having 3 to 22 carbon atoms,
A independently of B being an identical or different ethyleneoxy, propyleneoxy, butyleneoxy, styreneoxy, cyclohexyloxy unit or a unit originating from a glycidyl compound as the result of epoxide ring opening,
B independently of A being an identical or different ethyleneoxy, propyleneoxy, butyleneoxy, styreneoxy, cyclohexyloxy unit or a unit originating from a glycidyl compound as a result of epoxide ring opening,
m being equal to 0 to 20,
n being equal to 1 to 40,
x being an integer from 1 to 6,
and the monomer units A and B can be strung together in their order arbitrarily either blockwise or randomly.
5 . A cosmetic and/or dermatological preparation according to claim 1 , characterized in that the polyether alcohols are PPG-3 myristyl ether, PPG-11 stearyl ether, PPG-14 butyl ether or PPG-15 stearyl ether.
6 . A cosmetic and/or dermatological preparation according to claim 1 , characterized in that an additional component is present selected from the group of emollients, emulsifiers and surfactants, thickeners, viscosity regulators, stabilizers, UV photoprotective filters, antioxidants and vitamins, hydrotropes or polyols, solids and fillers, film formers, pearlescence additives, deodorant and antiperspirant active ingredients, esterase inhibitors, insect repellents, self-tanning agents, preservatives, conditioners, perfumes, dyes, biogenic active ingredients, care additives, superfatting agents and/or solvents.
7 . A cosmetic and/or dermatological preparation according to claim 1 , characterized in that the preparation is thick-liquid to semisolid and ranging to cream-solid and is passed onto the consumer in a container suitable for cosmetic sticks or deodorant roll-on container or an atomizer pump container.
8 . A cosmetic and/or dermatological preparation according to claim 1 , which further comprises cosmetic additives, perfume and/or fragrances.
9 . A method of reducing perspiration on the human skin which comprises of application on the human skin of the cosmetic and/or dermatological preparation of claim 1 .
10 . The cosmetic and/or dermatological preparation according to claim 2 , characterized in that the polyether alcohols are pure polypropylene glycol alkyl ethers.
11 . The cosmetic and/or dermatological preparation according to claim 2 , characterized in that one or more polyether alcohols of the formula (I) are present,
R 1 —[O-(A) n -(B) m —H] x (I)
R 1 being a linear or branched alkyl radical having 3 to 22 carbon atoms,
A independently of B being an identical or different ethyleneoxy, propyleneoxy, butyleneoxy, styreneoxy, cyclohexyloxy unit or a unit originating from a glycidyl compound as the result of epoxide ring opening,
B independently of A being an identical or different ethyleneoxy, propyleneoxy, butyleneoxy, styreneoxy, cyclohexyloxy unit or a unit originating from a glycidyl compound as a result of epoxide ring opening,
m being equal to 0 to 20,
n being equal to 1 to 40,
x being an integer from 1 to 6,
and the monomer units A and B can be strung together in their order arbitrarily either blockwise or randomly.
12 . The cosmetic and/or dermatological preparation according to claim 11 , characterized in that the polyether alcohols are PPG-3 myristyl ether, PPG-11 stearyl ether, PPG-14 butyl ether or PPG-15 stearyl ether.
13 . The cosmetic and/or dermatological preparation according to claim 12 , characterized in that an additional component is present selected from the group of emollients, emulsifiers and surfactants, thickeners, viscosity regulators, stabilizers, UV photoprotective filters, antioxidants and vitamins, hydrotropes or polyols, solids and fillers, film formers, pearlescence additives, deodorant and antiperspirant active ingredients, esterase inhibitors, insect repellents, self-tanning agents, preservatives, conditioners, perfumes, dyes, biogenic active ingredients, care additives, superfatting agents and/or solvents.