Patent US5403922A successfully refreshed from Google Patents.
US5403922A
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Amphiphilic compounds containing two sugar or sugar-derived head groups
Assignee: Stepan Europe SAS
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Filing: 1994-06-07
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Granted: 1995-04-04
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Expires: 2014-06-07
Abstract
Abstract The subject of the invention is a surface-active composition, comprising a bolaamphiphile or bolaform chemical compound, containing a linear or branched, hydrophobic carbon chain at the two ends of which are arranged two hydrophilic portions or head group groups, corresponding to the following general formula: R A E A R in which: E represents the carbon chain, containing at least six carbon atoms, optionally interrupted by at least one aromatic, or heterocyclic, or functional group A is a bonding functional group R is a residue of a reducing glucide containing a linear or cyclized chain, or of a derivative of the said glucide, bonded directly or indirectly via one of its aldehyde or ketone functional groups, or derived functional group, to the functional group A. The invention also relates to their applications as components of surface-active agents and vesicular agents, and to a process for their preparation.
Inventors
- 👤 Rachel Garelli-Calvet
- 👤 Florence Brisset
- 👤 Isabelle Rico
- 👤 Armand Lattes
- 👤 Lionel Godefroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:41
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04; A; A61; A61K; A61K8/00; A61K8/02; A61K8/14; A61K8/18; A61K8/30; A61K8/60; A61K9/00; A61K9/10; A61K9/127; A61K9/1271; A61K9/1272; A61Q; A61Q19/00; C07C; C07C235/00; C07C235/02; C07C235/04; C07C235/08; C07C235/10; C07H15/00; C07H15/02; C07H15/04; C07H15/12; C09; C09K; C09K23/00; C09K23/56; A61K2800/00; A61K2800/40; A61K2800/57
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
107 words
A compound of the formula R A E A R wherein E represents a linear or branched chain alkylene having at least 6 carbon atoms, a linear or branched chain dialkyl amino having at least 3 carbon atoms in each alkyl portion, or a linear or branched chain dialkyl ether having at least 3 carbon atoms in each alkyl portion; A is a bonding group; R represents a residue of a reducing glucide containing a linear or cyclized chain, or a derivative of a reducing glucide, where the residue is bonded directly or indirectly via one of its aldehyde or ketone groups, to the bonding group A.
Claim 2
Dependent Claim
107 words
A compound of the formula R A E A R wherein E represents a linear or branched chain alkylene having at least 6 carbon atoms, a linear or branched chain dialkyl amino having at least 3 carbon atoms in each alkyl portion, or a linear or branched chain dialkyl ether having at least 3 carbon atoms in each alkyl portion; A is a bonding group; R represents a residue of a reducing glucide containing a linear or cyclized chain, or a derivative of a reducing glucide, where the residue is bonded directly or indirectly via one of its aldehyde or ketone groups, to the bonding group A.
Claim 3
Dependent Claim
13 words
A compound according to claim 1 wherein E represents a saturated carbon chain.
Claim 4
Dependent Claim
18 words
A compound according to claim 2, wherein E represents alkylene having from about 6 to 24 carbon atoms.
Claim 5
Dependent Claim
18 words
A compound according to claim 3, wherein E represents alkylene having from about 6 to 14 carbon atoms.
Claim 6
Dependent Claim
20 words
A compound according to claim 1 wherein the bonding group A is selected from the group consisting of oxygen, ##STR31##
Claim 7
Dependent Claim
14 words
A compound according to claim 5, wherein the bonding functional group A is NH.
Claim 8
Dependent Claim
18 words
A compound according to claim 1, wherein the reducing glucide which forms the residue R is a monosaccharide.
Claim 9
Dependent Claim
20 words
A compound according to claim 7, wherein the residue R is selected from the group consisting of glucose and galactose.
Claim 10
Dependent Claim
18 words
A compound according to claim 1, wherein the reducing glucide which forms the residue R is a polysaccharide.
Claim 11
Dependent Claim
18 words
A compound according to claim 9, wherein the reducing glucide which forms the residue R is a disaccharide.
Claim 12
Dependent Claim
14 words
A compound according to claim 10, wherein the disaccharide is cellobiose, lactose or maltose.
Claim 13
Dependent Claim
142 words
A process for preparing a compound of the formula R A E A R wherein E represents a linear or branched chain alkylene having at least 6 carbon atoms, a linear or branched chain dialkyl amino having at least 3 carbon atoms in each alkyl portion, or a linear or branched chain dialkyl ether having at least 3 carbon atoms in each alkyl portion; A is a bonding group; R represents a residue of a reducing glucide containing a linear or cyclized chain, or a derivative of a reducing glucide, where the residue is bonded directly or indirectly via one of its aldehyde or ketone groups, to the bonding group A. comprising reacting an oxidized, reduced or aminated form of a reducing sugar with a compound of Formula BEB, where B corresponds to bonding group A prior to condensation with the sugar.
Claim 14
Dependent Claim
142 words
A process for preparing a compound of the formula R A E A R wherein E represents a linear or branched chain alkylene having at least 6 carbon atoms, a linear or branched chain dialkyl amino having at least 3 carbon atoms in each alkyl portion, or a linear or branched chain dialkyl ether having at least 3 carbon atoms in each alkyl portion; A is a bonding group; R represents a residue of a reducing glucide containing a linear or cyclized chain, or a derivative of a reducing glucide, where the residue is bonded directly or indirectly via one of its aldehyde or ketone groups, to the bonding group A. comprising reacting an oxidized, reduced or aminated form of a reducing sugar with a compound of Formula BEB, where B corresponds to bonding group A prior to condensation with the sugar.
Claim 15
Dependent Claim
15 words
A process according to claim 12, wherein the reducing sugar is in the oxidized form.
Claim 16
Dependent Claim
17 words
A process according to claim 13, wherein the oxidized reducing sugar is a lactone or an acid.
Claim 17
Dependent Claim
13 words
A process according to claim 14, wherein the oxidized reducing sugar is gluconolactone.
Claim 18
Dependent Claim
14 words
A process according to claim 13, wherein the oxidized reducing sugar is lactobionic acid.
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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) | 1998-04-03 | 1998-10-03 | 1999-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-03 | 2002-10-03 | 2003-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-03 | 2006-10-03 | 2007-04-04 | $7700.00 | Window Closed / Lapsed |