US5117032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making glycerol ether sulfates
Assignee: Henkel AG and Co KGaA
•
Filing: 1990-06-06
•
Granted: 1992-05-26
•
Expires: 2010-06-06
Abstract
Abstract Glycerol ether sulfates suitable for the production of manual dishwashing detergents and liquid and powdered laundry detergents are obtained by reaction of glycerol ethers in liquid phases with gaseous sulfur trioxide and subsequent neutralization with aqueous bases.
Inventors
- 👤 Bernd Fabry
- 👤 Bert Gruber
- 👤 James R. Tucker
- 👤 Brigitte Giesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:59
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/29; C07; C07C; C07C303/00; C07C303/24; C11D1/16
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
169 words
A process for the production of glycerol either sulfates, wherein a gas phase containing sulfur trioxide is contacted at a temperature within the range from about 35 to about 80° C. with a liquid phase initially consisting essentially of one glycerol either or a mixture of glycerol ethers corresponding to formula (I): ##STR2## wherein R 1 is a C 4-22 aklyl radical; at least one of R 2 and R 3 is hydrogen and the other of R 2 and R 3 is hydrogen or a C 4-22 aklyl radical; and each of m, n, and p independently is zero or a positive integer and the sum of m + n + p is zero or an integer within the range of 1 to about 20 inclusive, for a sufficient time to convert at least part of said glycerol ether to an acidic sulfatization product, and said acidic sulfatization product is converted to a glycerol ether sulfate by neutralization by reaction with basic material dissolved in an aqueous solution.
Claim 2
Dependent Claim
169 words
A process for the production of glycerol either sulfates, wherein a gas phase containing sulfur trioxide is contacted at a temperature within the range from about 35 to about 80° C. with a liquid phase initially consisting essentially of one glycerol either or a mixture of glycerol ethers corresponding to formula (I): ##STR2## wherein R 1 is a C 4-22 aklyl radical; at least one of R 2 and R 3 is hydrogen and the other of R 2 and R 3 is hydrogen or a C 4-22 aklyl radical; and each of m, n, and p independently is zero or a positive integer and the sum of m + n + p is zero or an integer within the range of 1 to about 20 inclusive, for a sufficient time to convert at least part of said glycerol ether to an acidic sulfatization product, and said acidic sulfatization product is converted to a glycerol ether sulfate by neutralization by reaction with basic material dissolved in an aqueous solution.
Claim 3
Dependent Claim
33 words
A process as claimed in claim 1, wherein said glycerol either corresponds to formula (I) with R 1 and one of R 2 and R 3 each representing a C 8 alkyl radical.
Claim 4
Dependent Claim
34 words
A process as claimed in claim 1, wherein said glycerol either corresponds to formula (I) with R 1 representing a C 8 alkyl radical and each of R 2 and R 3 representing hydrogen.
Claim 5
Dependent Claim
27 words
A process as claimed in claim 1, wherein said glycerol either corresponds to formula (I) with each of m, n, and p having a value of 0.
Claim 6
Dependent Claim
34 words
A process as claimed in claim 1, wherein said glycerol either corresponds to formula (I) with the sum of m, n, and p being in the range from about 2 to about 10 inclusive.
Claim 7
Dependent Claim
31 words
A process as claimed in claim 5, characterized in that glycerol ether according to formula (I) and sulfur trioxide are used in a molar ratio of about 1:0.95 to about 1:1.8.
Claim 8
Dependent Claim
31 words
A process as claimed in claim 4, characterized in that glycerol either according to formula (I) and sulfur trioxide are used in a molar ratio of about 1:0.95 to about 1:1.8.
Claim 9
Dependent Claim
31 words
A process as claimed in claim 1, characterized in that glycerol either according to formula (I) and sulfur trioxide are used in a molar ratio of about 1:0.95 to about 1:1.8.
Claim 10
Dependent Claim
47 words
A process as claimed in claim 5, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 11
Dependent Claim
47 words
A process as claimed in claim 4, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 12
Dependent Claim
47 words
A process as claimed in claim 3, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 13
Dependent Claim
47 words
A process as claimed in claim 2, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 alkanolamines, and primary, secondary, and tertiary C 104 alkylamines.
Claim 14
Dependent Claim
47 words
A process as claimed in claim 8, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 -alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 15
Dependent Claim
47 words
A process as claimed in claim 7, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-Cz 2-4 -alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 16
Dependent Claim
47 words
A process as claimed in claim 6, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 -alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 17
Dependent Claim
47 words
A process as claimed in claim 1, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 -alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 18
Dependent Claim
31 words
A process as claimed in claim 3, characterized in that glycerol either according to formula (I) and sulfur trioxide are used in a molar ratio of about 1:0.95 to about 1:1.8.
Claim 19
Dependent Claim
31 words
A process as claimed in claim 2, characterized in that glycerol ether according to formula (I) and sulfur trioxide are used in a molar ratio of about 1:0.95 to about 1:1.8.
Claim 20
Dependent Claim
47 words
A process as claimed in claim 18, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 2-4 -alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
Claim 21
Dependent Claim
47 words
A process as claimed in claim 17, wherein said basic material dissolved in an aqueous solution is selected from the group consisting of alkali metal hydroxides, alkaline earth metal oxides and hydroxides, ammonia, mono-, di-, and tri-C 204 -alkanolamines, and primary, secondary, and tertiary C 1-4 alkylamines.
References Cited (Backward Citations)
US4217296A
Cited
US4954646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |