EP0688781A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Non-ionic surface active compounds
Assignee: Eastman Kodak Co
•
Filing: 1995-06-14
•
Granted: —
•
Expires: 2015-06-14
Abstract
Abstract A water-soluble or water-dispersible, non-ionic surface active compound has the formula ZNHQNHZ (I) wherein each Z independently is a polysaccharide group linked to the remainder of the molecule through one of its ketone groups; and, Q together with the two NH groups to which it is attached represents the atoms necessary to complete a polyalkyleneamine unit wherein at least one of the amine nitrogen atoms has a hydrophobic, substituted or unsubstituted hydrocarbon group linked thereto. Such surfactants can be used in hydrophilic colloid compositions in the manufacture of photographic materials.
Inventors
- 👤 Katie Emma c/o Kodak Limited Adams
- 👤 Ian Martin c/o Kodak Limited Newington
- 👤 Alan Robert C/O Kodak Limited Pitt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 20:18
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
A water-soluble or water-dispersible, non-ionic surface active compound having the formula ZNHQNHZ (I) wherein each Z independently is a polysaccharide group linked to the remainder of the molecule through one of its carbonyl groups; and, Q together with the two NH groups to which it is attached represents the atoms necessary to complete a polyalkyleneamine unit wherein at least one of the amine nitrogen atoms has a hydrophobic, substituted or unsubstituted hydrocarbon group linked thereto.
Claim 2
Dependent Claim
54 words
A compound according to claim 1 having the formula wherein Z is as defined in claim 1; R is a hydrophobic, substituted or unsubstituted hydrocarbon group; X is a linking group; a, b, c and d each independently represents an integer from 1 to 5; and, e represents an integer from 1 to 8.
Claim 3
Dependent Claim
46 words
A compound according to claim 2 wherein Z is a disaccharide group represented by the structure wherein Y is a monosaccharide; and, f and g each independently represents 0 or an integer from 1 to 3 provided that the sum of f and g is 3.
Claim 4
Dependent Claim
13 words
A compound according to claim 3 wherein Y is glucose, galactose or mannose.
Claim 5
Dependent Claim
26 words
A compound according to any one of claims 2 to 4 wherein each R group is a substituted or unsubstituted alkyl, alkenyl, allyl or aryl group.
Claim 6
Dependent Claim
22 words
A compound according to any one of claims 2 to 5 wherein each R group contains from 10 to 20 carbon atoms.
Claim 7
Dependent Claim
28 words
A compound according to any one of claims 2 to 6 wherein the total number of carbon atoms in the hydrophobic hydrocarbon groups is from 10 to 40.
Claim 8
Dependent Claim
19 words
A compound according to any one of claims 2 to 7 wherein the linking group X is selected from
Claim 9
Dependent Claim
20 words
A compound according to any one of claims 2 to 8 wherein e is an integer from 1 to 4.
Claim 10
Dependent Claim
20 words
A coating composition comprising a hydrophilic colloid and a surface active compound according to any one of the preceding claims.
Claim 11
Dependent Claim
30 words
A photographic material comprising a support having thereon at least one layer comprising a hydrophilic colloid and a surface active compound according to any one of claims 1 to 9.
Claim 12
Dependent Claim
16 words
A photographic material according to claim 11 comprising at least one photosensitive silver halide emulsion layer.
Claim 13
Dependent Claim
16 words
Use of a compound according to any one of claims 1 to 9 as a surfactant.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.