US4528106A
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Glucoside surfactants
Assignee: Arch Chemicals Inc
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Filing: 1983-11-14
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Granted: 1985-07-09
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Expires: 2003-11-14
Abstract
Abstract Nonionic polyalkoxylated glucoside surfactant compositions useful in forming stable emulsions with oil in saline solutions comprising: <IMAGE> wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; and wherein m is from about 2 to about 15; and wherein R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, an alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms. These surfactant compositions are made by reacting the corresponding alkoxylated lower alkyl glucoside with a hydrophobic alkoxylated alcohol by means of an alcohol interchange reaction (transacetalation). These surfactant compositions may be employed in enhanced oil recovery processes and other applications where good emulsification and high salinity tolerances are required, such as textiles, leather, dairy, concrete grinding aids and drilling muds.
Inventors
- 👤 Marilyn A. Grolitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:55
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/32; C08G65/329; C08G65/331; C08G65/3311; C08G65/3318; C09; C09K; C09K23/00; C09K23/56; C09K8/00; C09K8/02; C09K8/04; C09K8/06; C09K8/08; C09K8/58; C09K8/584; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
173 words
A process for preparing a polyalkoxylated glucoside composition of the formula ##STR4## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; and wherein m is from about 2 to about 15; and wherein R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, and alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms; said process comprising reacting in the presence of an effective catalytic amount of acid catalyst at a temperature from about 100° C. to about 150° C. a polyalkoxylated lower alkyl glucoside of the formula ##STR5## wherein R, w, x, y and z are as defined above and R" is a lower alkyl group having 1 to 4 carbon atoms with a polyalkoxylated alcohol of the formula HO--(CH.sub.2 CHRO).sub.m --R' wherein R and R' are as defined above.
Claim 2
Dependent Claim
173 words
A process for preparing a polyalkoxylated glucoside composition of the formula ##STR4## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; and wherein m is from about 2 to about 15; and wherein R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, and alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms; said process comprising reacting in the presence of an effective catalytic amount of acid catalyst at a temperature from about 100° C. to about 150° C. a polyalkoxylated lower alkyl glucoside of the formula ##STR5## wherein R, w, x, y and z are as defined above and R" is a lower alkyl group having 1 to 4 carbon atoms with a polyalkoxylated alcohol of the formula HO--(CH.sub.2 CHRO).sub.m --R' wherein R and R' are as defined above.
Claim 3
Dependent Claim
22 words
The process of claim 1 wherein each R is hydrogen and the sum of w+x+y+z is from about 10 to about 20.
Claim 4
Dependent Claim
29 words
The process of claim 1 wherein m is from about 2 to about 10 and R' is an alkyl group having from about 8 to about 13 carbon atoms.
Claim 5
Dependent Claim
30 words
The process of claim 1 wherein m is from about 5 to about 10 and R' is an alkyl aryl group having from about 14 to about 18 carbon atoms.
Claim 6
Dependent Claim
15 words
The process of claim 1 wherein the acid catalyst is protic or Lewis acid catalyst.
Claim 7
Dependent Claim
12 words
The process of claim 5 wherein the catalyst is boron trifluoride etherate.
Claim 8
Dependent Claim
89 words
A polyalkoxylated glucoside composition comprising the formula ##STR6## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; wherein m is from 2 to about 15; and R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, an alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms.
Claim 9
Dependent Claim
89 words
A polyalkoxylated glucoside composition comprising the formula ##STR6## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; wherein m is from 2 to about 15; and R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, an alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms.
Claim 10
Dependent Claim
22 words
The composition of claim 7 wherein each R is hydrogen and the sum of w+x+y+z is from about 10 to about 20.
Claim 11
Dependent Claim
29 words
The composition of claim 7 wherein m is from about 2 to about 10 and R' is an alkyl group having from about 8 to about 13 carbon atoms.
Claim 12
Dependent Claim
30 words
The composition of claim 7 wherein m is from about 5 to about 10 and R' is an alkyl aryl group having from about 14 to about 18 carbon atoms.
Claim 13
Dependent Claim
140 words
A process for recovering hydrocarbons from a subterranean hydrocarbon-bearing formation penetrated by at least one injection well and at least one production well which comprises (1) injecting into the formation via an injection well a drive fluid comprising water having dissolved therein from about 0.05 to about 6.0 weight percent of a surfactant composition comprising ##STR7## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; and wherein m is from about 2 to about 15; and wherein R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, an alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms.
Claim 14
Dependent Claim
140 words
A process for recovering hydrocarbons from a subterranean hydrocarbon-bearing formation penetrated by at least one injection well and at least one production well which comprises (1) injecting into the formation via an injection well a drive fluid comprising water having dissolved therein from about 0.05 to about 6.0 weight percent of a surfactant composition comprising ##STR7## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; and wherein m is from about 2 to about 15; and wherein R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, an alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms.
Claim 15
Dependent Claim
115 words
An aqueous drive fluid composition useful for recovering hydrocarbons from a subterranean hydrocarbon-bearing formation comprising water having from about 0.05 to about 6.0 weight percent of a surfactant blend comprising: ##STR8## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; and wherein m is from about 2 to about 15; and wherein R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, an alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms.
Claim 16
Dependent Claim
115 words
An aqueous drive fluid composition useful for recovering hydrocarbons from a subterranean hydrocarbon-bearing formation comprising water having from about 0.05 to about 6.0 weight percent of a surfactant blend comprising: ##STR8## wherein each R is individually selected from the group consisting of a hydrogen and a methyl group; wherein the sum of w+x+y+z is from about 4 to about 40; and wherein m is from about 2 to about 15; and wherein R' is selected from the group consisting of an alkyl group having about 6 to about 20 carbon atoms, an alkenyl group having about 6 to about 20 carbon atoms and an alkyl aryl group having about 10 to about 20 carbon atoms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |