التفاصيل البيبلوغرافية
| العنوان: |
NEW POLYGLYCEROL ESTERS AND THEIR USE |
| Document Number: |
20110201538 |
| تاريخ النشر: |
August 18, 2011 |
| Appl. No: |
12/704708 |
| Application Filed: |
February 12, 2010 |
| مستخلص: |
The present invention relates to polyglycerol partial esters of linear, unsubstituted carboxylic acids with the provisos that the polyglycerol obtained by hydrolysis or alcoholysis of the polyglycerol partial ester comprises an average degree of polymerization of from 2 to 8 and the polydispersity index of said polyglycerol is greater than 0.75. |
| Inventors: |
WENK, Hans Henning (Mulheim an der Ruhr, DE); KOTTKE, Ulrike (Grossenhausen-Linsengericht, DE); PONDER, Jennifer B. (Cincinnati, OH, US) |
| Assignees: |
EVONIK GOLDSCHMIDT GMBH (Essen, DE) |
| Claim: |
1. Polyglycerol partial ester having the structure of Formula (I) [chemical expression included] with R1, R2 and R3 independent from each other, equal or different selected from the group consisting of —OH, —OR4, with R4 a linear, unsubstituted acyl radical with a chain length of from 16 to 22 carbon atoms with the proviso that the monocarboxylic acids obtained from the acyl radical by saponification bears an iodine value of smaller than 50, —OR5, with R5 a radical having the structure of Formula (I) wherein one of R1, R2 and R3 being a direct bond to the oxygen of —OR5 wherein each molecule of the polyglycerol partial ester comprises at least one of each —OR4 and —OR5, with the provisos that the polyglycerol obtained by hydrolysis or alcoholysis of the polyglycerol partial ester comprises an average degree of polymerization of from 2 to 8 and the polydispersity index of said polyglycerol is greater than 0.75. |
| Claim: |
2. Polyglycerol partial ester according to claim 1 wherein at least 1% of the polyglycerol obtained by hydrolysis or alcoholysis of the polyglycerol partial ester comprises cyclic structures. |
| Claim: |
3. Polyglycerol partial ester according to claim 1, wherein the polyglycerol partial ester comprises an HLB-value from 2 to 10. |
| Claim: |
4. Polyglycerol partial ester according to claim 1, wherein said polyglycerol partial ester has a melting point of at least 25° C. |
| Claim: |
5. A method for the preparation of polyglycerol partial esters comprising the process of esterification of a) a polyglycerol mixture comprising an average degree of polymerization of from 2 to 8 with b) at least one monocarboxylic acid comprising a carboxylic acid HOR4, with R4 a linear, unsubstituted acyl radical with a chain length of from 16 to 22 carbon atoms with the proviso that the at least one carboxylic acid bears an iodine value of smaller than 50. |
| Claim: |
6. A polyglycerol partial ester concentrate wherein a solvent is present consisting of A) at least 50 wt. % of at least one polyglycerol partial esters according to claim 1, B) up to 50 wt. % of a solvent and optionally C) 0.1 wt. % to 5 wt. % of a preservative, wherein the wt. % refer to the total weight of the concentrate and the wt. % of all components sum up to 100 wt. %. |
| Current U.S. Class: |
510/505 |
| Current International Class: |
11; 07 |
| رقم الانضمام: |
edspap.20110201538 |
| قاعدة البيانات: |
USPTO Patent Applications |