Polyglycerol fatty acid ester mixture
First Claim
1. A polyglycerol fatty acid ester mixture of mono-, di- and polyesters of a polyglycerol having a degree of polymerization of 2 to 8 and at least one fatty acid selected from the group consisting of saturated and unsaturated, branched and unbranched C6 - to C14 -fatty acids containing less than 10 wt-% of fatty acids having more than 14 carbon atoms, wherein said polyglycerol fatty acid ester mixture has an HLB of greater than 8 and contains0 to 5 parts by weight diglycerol fatty acid esters,to 65 parts by weight triglycerol fatty acid esters,to 50 parts by weight tetraglycerol fatty acid esters, and5 to 40 parts by weight higher polyglycerol fatty acid esters,in a total of 100 parts by weight of said ester mixture.
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Abstract
Polyglycerol fatty acid ester mixtures of mono- di- and polyesters of polyglycerols having a degree of polymerization of 2 to 8 and at least one saturated and/or unsaturated fatty acid, the mixtures having an HLB of greater than 8 and containing 0 to less than 5 wt-% diglycerol fatty acid esters, 20 to 65 wt-% triglycerol fatty acid esters, 20 to 50 wt-% tetraglycerol fatty acid esters and 5 to 40 wt-% higher polyglycerol fatty acid esters, in which the fatty acid component consists of one or more fatty acids selected from the saturated and/or unsaturated, branched and/or unbranched C6 - to C14 -fatty acids containing less than 10 wt-% fatty acids having more than 14 carbon atoms; bath additive preparations containing such polyglycerol fatty acid ester mixtures; methods of using such polyglycerol fatty acid ester mixtures, and a process for preparing such mixtures.
43 Citations
42 Claims
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1. A polyglycerol fatty acid ester mixture of mono-, di- and polyesters of a polyglycerol having a degree of polymerization of 2 to 8 and at least one fatty acid selected from the group consisting of saturated and unsaturated, branched and unbranched C6 - to C14 -fatty acids containing less than 10 wt-% of fatty acids having more than 14 carbon atoms, wherein said polyglycerol fatty acid ester mixture has an HLB of greater than 8 and contains
0 to 5 parts by weight diglycerol fatty acid esters, to 65 parts by weight triglycerol fatty acid esters,to 50 parts by weight tetraglycerol fatty acid esters, and5 to 40 parts by weight higher polyglycerol fatty acid esters, in a total of 100 parts by weight of said ester mixture.
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6. A bath additive composition comprising:
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10 to 60 wt-% of a polyglycerol fatty acid ester mixture of mono-, di- and polyesters of a polyglycerol having a degree of polymerization from 2 to 8 and at least one fatty acid selected from group consisting of saturated and unsaturated, branched and unbranched C6 - to C14 -fatty acids containing less than 10 wt-% of fatty acids having more than 14 carbon atoms; 10 to 60 wt-% of at least one oil or oil-component having cosmetic or therapeutic activity selected from the group consisting of natural and synthetic, mineral, ethereal and fatty animal and vegetable oils, and 0 to 70 wt-% water; wherein said polyglycerol fatty acid ester mixture has an HLB of greater than 8 and contains 0 to 5 parts by weight diglycerol fatty acid esters, 20 to 65 parts by weight triglycerol fatty acid esters, 20 to 50 parts by weight tetraglycerol fatty acid esters, and 5to 40 parts by weight higher polyglycerol fatty acid esters, in a total of 100 parts by weight of said ester mixture. - View Dependent Claims (7, 8, 9)
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10. A process for preparing a polyglycerol fatty acid ester mixture of mono-, di- and polyesters of polyglycerols having a degree of polymerization of 2 to 8 and at least one saturated and/or unsaturated fatty acid, said process comprising the steps of initially heating a reaction mixture comprising
a polyglycerol containing 0 to 5 wt-% diglycerol, 20 to 65 wt-% triglycerol, 20 to 50 wt-% tetraglycerol, and 5 to 40 wt-% higher polyglycerols, and at least one fatty acid selected from the group consisting of saturated and unsaturated, branched and unbranched C6 - to C14 -fatty acids containing less than 10 wt-% fatty acids having more than 14 carbon atoms, in a molar ratio of polyglycerol to fatty acid of 4: - 1 to 1;
1 and in the presence of at least one catalyst, to a temperature of at least 140°
C. and reducing the pressure to at most 600 mbar;subsequently heating the reaction mixture in a temperature range from 140°
to 220°
C. under control of a temperature program, and simultaneously reducing the pressure under control of a pressure program from 600 to 10 mbar;removing resulting water of reaction by continuous distillation, and upon attaining an acid number of less than 3, cooling the resulting polyglycerol fatty acid ester mixture. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
- 1 to 1;
Specification