US4568480A
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Microemulsions
Assignee: BASF Corp
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Filing: 1983-11-17
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Granted: 1986-02-04
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Expires: 2003-11-17
Abstract
Abstract A microemulsion of water and an alkoxylated phenol derivative which may also contain an oil and an additional surfactant.
Inventors
- 👤 Basil Thir
- 👤 Edward M. Dexheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:45
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/068; A01; A01N; A01N25/00; A01N25/02; A01N25/04; A23; A23L; A23L29/00; A23L29/10; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K9/00; A61K9/10; A61K9/107; A61K9/1075; A61Q; A61Q19/00; C; C09; C09K; C09K23/00; C09K23/017; C11; C11D; C11D17/00; C11D17/0008; C11D17/0017; C11D17/0021; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
148 words
A microemulsion comprising by weight about 30 to 90 percent water and 10 to 70 percent of a compound selected from the group consisting of: ##STR9## and ##STR10## wherein A is an oxyalkylene radical having 2 carbon atoms to 4 carbon atoms or mixtures thereof, R is acyl containing from 8 carbon atoms to 22 carbon atoms, R' is alkyl containing from 1 carbon atom to 10 carbon atoms, R" is alkyl containing from 1 carbon atom to 22 carbon atoms, R'" is alkyl containing from 4 carbon atoms to 8 carbon atoms, and R"" is R" or R"', X is an alkylidene radical containing from 1 carbon atom to 3 carbon atoms, and n is an integer such that the molecular weight of the compound is between 500 and 2500 and with the proviso that either R" or R'" is ortho to the oxygen in formula III.
Claim 2
Dependent Claim
148 words
A microemulsion comprising by weight about 30 to 90 percent water and 10 to 70 percent of a compound selected from the group consisting of: ##STR9## and ##STR10## wherein A is an oxyalkylene radical having 2 carbon atoms to 4 carbon atoms or mixtures thereof, R is acyl containing from 8 carbon atoms to 22 carbon atoms, R' is alkyl containing from 1 carbon atom to 10 carbon atoms, R" is alkyl containing from 1 carbon atom to 22 carbon atoms, R'" is alkyl containing from 4 carbon atoms to 8 carbon atoms, and R"" is R" or R"', X is an alkylidene radical containing from 1 carbon atom to 3 carbon atoms, and n is an integer such that the molecular weight of the compound is between 500 and 2500 and with the proviso that either R" or R'" is ortho to the oxygen in formula III.
Claim 3
Dependent Claim
41 words
The microemulsion of claim 1 wherein the compound is of formula IV, A is oxyethylene, R is an acyl radical containing from 16 to 20 carbon atoms, R' is methyl, R" is C 4 H 9 --, and X is ##STR11##
Claim 4
Dependent Claim
54 words
The microemulsion of claim 1 wherein the compound is of formula IV, A is a mixture of oxyethylene and an oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl radical containing from 16 to 20 carbon atoms, R' is methyl, R" is C 4 H 9 --, and X is ##STR12##
Claim 5
Dependent Claim
31 words
The microemulsion of claim 1 wherein the compound is of formula I, A is oxyethylene, R is an acyl radical containing from 16 to 20 carbon atoms and X is ##STR13##
Claim 6
Dependent Claim
44 words
The microemulsion of claim 1 wherein the compound is of formula I, A is a mixture of oxyethylene and an oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl radical containing from 16 to 20 carbon atoms and X is ##STR14##
Claim 7
Dependent Claim
38 words
The microemulsion of claim 1 wherein the compound is of formula II, A is oxyethylene, R is an acyl radical containing from 16 to 20 carbon atoms, R" is C 4 H 9 --, and X is ##STR15##
Claim 8
Dependent Claim
51 words
The microemulsion of claim 1 wherein the compound is of formula II, A is a mixture of oxyethylene and an oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl radical containing from 16 to 20 carbon atoms, R" is C 4 H 9 --, and X is ##STR16##
Claim 9
Dependent Claim
61 words
The microemulsion of claim 1 wherein the compound is of formula III, A is oxyethylene, R is an acyl group containing from 16 to 20 carbon atoms, R" is C 4 H 9 --, R'" is C 8 H 17 -- and R"" is C 8 H 12 -- or C 4 H 9 -- or a mixture of such compounds.
Claim 10
Dependent Claim
74 words
The microemulsion of claim 1 wherein the compound is of formula III, A is a mixture of oxyethylene and an oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl group containing from 16 to 20 carbon atoms, R" is C 4 H 9 --, R"' is C 8 H 17 -- and R"" is C 8 H 12 -- or C 4 H 9 -- or a mixture of such compounds.
Claim 11
Dependent Claim
12 words
The microemulsion of claim 1 including about 1 to 40 percent oil.
Claim 12
Dependent Claim
30 words
The microemulsion of claim 10 including about 1 to 40 percent alkali metal salt of a phosphate ester of an alkoxylated aliphatic alcohol having from 10 to 18 carbon atoms.
Claim 13
Dependent Claim
10 words
The microemulsion of claim 11 wherein said oil is tridecylstearate.
Claim 14
Dependent Claim
90 words
The microemulsion of claim 11 wherein the compound is of formula IV, A is oxyethylene, R is an acyl radical containing 16 to 20 carbon atoms, R' is methyl, R" is C 4 H 9 --, and X is ##STR17## and said surfactant is an alkali metal salt of the phosphate ester of an alkoxylated 10 to 18 carbon atom aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
Claim 15
Dependent Claim
103 words
The microemulsion of claim 11 wherein the compound is of formula IV, A is a mixture of oxyethylene and an oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl radical containing 16 to 20 carbon atoms, R' is methyl, R" is C 4 H 9 --, and X is ##STR18## and said surfactant is an alkali metal salt of the phosphate ester of an alkoxylated 10 to 18 carbon atom aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
Claim 16
Dependent Claim
78 words
The microemulsion of claim 11 wherein the compound is of formula I, A is oxyethylene, R is an acyl radical containing 16 to 20 carbon atoms and X is ##STR19## and said surfactant is an alkali metal salt of the phosphate ester of an alkoxylated 10-18 carbon atoms aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
Claim 17
Dependent Claim
94 words
The microemulsion of claim 11 wherein the compound is of formula I, A is a mixture of oxyethylene and a oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl radical containing from 16 to 20 carbon atoms and X is ##STR20## and said surfactant is an alkali metal salt of the phosphate ester of an alkoxylated 10 to 18 carbon atom aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
Claim 18
Dependent Claim
83 words
The microemulsions of claim 11 wherein the compound is of formula II, A is oxyethylene, R is an acyl containing 16 to 20 carbon atoms, R" is C 4 H 9 and X is ##STR21## and said surfactant is an alkali metal salt of the phosphate exter of an alkoxylated 10-18 carbon atom aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
Claim 19
Dependent Claim
101 words
The microemulsion of claim 11 wherein the compound is of formula II, A is a mixture of oxyethylene and an oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl radical containing from 16 to 20 carbon atoms, R" is C 4 H 9 -- and X is ##STR22## and said surfactant is an alkali metal salt of the phosphate ester of an alkoxylated 10 to 18 carbon atom aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
Claim 20
Dependent Claim
108 words
The microemulsion of claim 11 wherein the compound is of formula III, A is oxyethylene and R is an acyl group containing 16 to 20 carbon atom, R" is C 4 H 9 --, R'" is C 8 H 17 -- and R"" is C 8 H 17 -- or C 4 H 9 -- or a mixture of both compounds and said surfactant is the potassium salt of the phosphate ester of an alkoxylated 10-18 carbon atom aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
Claim 21
Dependent Claim
123 words
The microemulsion of claim 11 wherein the compound is of formula III, A is a mixture of oxyethylene and an oxyalkylene group containing 3 to 4 carbon atoms, R is an acyl radical containing from 16 to 20 carbon atoms, R" is C 4 H 9 --, R"' is C 8 H 17 -- and R"" is C 8 H 17 -- or C 4 H 9 -- or a mixture of both compounds and said surfactant is the potassium salt of the phosphate ester of an alkoxylated 10 to 18 carbon atom aliphatic alcohol which is alkoxylated with a mixture of ethylene oxide and propylene oxide in a ratio of 90:10 to 10:90 and having a molecular weight of 500 to 1500.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |