US4461496A
Expired / Lapsed
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Soap having improved carbonless imaging properties
Assignee: 3M Co
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Filing: 1982-08-17
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Granted: 1984-07-24
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Expires: 2002-08-17
Abstract
Abstract Soap composition having improved imaging properties. The composition comprises (1) at least one metal cation which produces an image when reacted with by a dye precursor which is a derivative of dithiooxamide, (2) at least one rosin soap, and (3) at least one metallic soap. The presence of the metallic soap results in a higher level of metal cation available for image formation, thus improving speed of image formation and image quality.
Inventors
- 👤 Willis J. Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:35
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; Y; Y10; Y10S; Y10S428/00; Y10S428/914
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
58 words
Imaging composition comprising the reaction product of (1) at least one metal cation which can provide a visibly colored image when reacted with a dye precursor which is a derivative of dithiooxamide (2) at least one rosin salt, and (3) at least one water-insoluble compound containing lithium combined with a monocarboxylic acid of 7 to 22 carbon atoms.
Claim 2
Dependent Claim
58 words
Imaging composition comprising the reaction product of (1) at least one metal cation which can provide a visibly colored image when reacted with a dye precursor which is a derivative of dithiooxamide (2) at least one rosin salt, and (3) at least one water-insoluble compound containing lithium combined with a monocarboxylic acid of 7 to 22 carbon atoms.
Claim 3
Dependent Claim
22 words
Imaging composition according to claim 1 wherein the metal cation is selected from the group consisting of nickel, iron, copper and cobalt.
Claim 4
Dependent Claim
16 words
Imaging composition according to claim 1 wherein said at least one water-insoluble compound is lithium stearate.
Claim 5
Dependent Claim
44 words
A multisheet form comprising a first sheet having on the reverse surface a color forming component, and underlying said first sheet, a second sheet having at least a portion of the obverse surface coated with the imaging composition of claims 1, 2, or 3.
Claim 6
Dependent Claim
20 words
Imaging composition according to claim 1 and including a binder and a vehicle for applying the composition onto a substrate.
Claim 7
Dependent Claim
11 words
Imaging composition according to claim 5 wherein the binder is starch.
Claim 8
Dependent Claim
12 words
Imaging composition according to claim 5 wherein the application vehicle is water.
Claim 9
Dependent Claim
14 words
Imaging composition according to claim 5 and further including an encapsulated color forming coreactant.
Claim 10
Dependent Claim
20 words
Carbonless sheet having at least a portion of one major surface thereof carrying an imaging composition according to claim 1.
Claim 11
Dependent Claim
13 words
The carbonless sheet of claim 9 wherein the sheet is made of paper.
Claim 12
Dependent Claim
17 words
Carbonless paper sheet according to claim 10 wherein the metal cation is selected from nickel or iron.
Claim 13
Dependent Claim
17 words
Carbonless paper sheet according to claim 10 wherein said at least one water-insoluble compound is lithium stearate.
Claim 14
Dependent Claim
14 words
Carbonless paper sheet according to claim 10 and including an encapsulated color forming coreactant.
Claim 15
Dependent Claim
18 words
Carbonless paper sheet according to claim 13 wherein the encapsulated color forming coreactant is a derivative of dithiooxamide.
Claim 16
Dependent Claim
90 words
Imaging composition useful for applying to a substrate to provide a pressure sensitive carbonless imaging sheet comprising: A. the reaction product of (1) at least one metal cation which produces an image wen reacted upon by a dye precursor which is a derivative of dithiooxamide, (2) at least one rosin salt, and (3) at least one water-insoluble compound containing lithium combined with a monocarboxylic acid of 7 to 22 carbon atoms; B. binder; C. encapsulated color forming derivative of dithiooxamide; D. vehicle for applying the composition to the imaging sheet.
Claim 17
Dependent Claim
90 words
Imaging composition useful for applying to a substrate to provide a pressure sensitive carbonless imaging sheet comprising: A. the reaction product of (1) at least one metal cation which produces an image wen reacted upon by a dye precursor which is a derivative of dithiooxamide, (2) at least one rosin salt, and (3) at least one water-insoluble compound containing lithium combined with a monocarboxylic acid of 7 to 22 carbon atoms; B. binder; C. encapsulated color forming derivative of dithiooxamide; D. vehicle for applying the composition to the imaging sheet.
Claim 18
Dependent Claim
40 words
Imaging composition of claim 15 wherein the metal cation is nickel, the rosin salt is sodium rosinate, the water-insoluble compound is lithium stearate, the binder is starch, the application vehicle is water and the dithiooxamide derivative is an N,N'-di-organo-substituted dithiooxamide.
Claim 19
Dependent Claim
27 words
Imaging composition of claim 16 wherein the source of nickel cation is nickel acetate, the rosin salt is sodium rosinate, and the water-insoluble compound is lithium stearate.
Claim 20
Dependent Claim
58 words
Imaging composition of claim 17 wherein the reaction product of nickel acetate, sodium rosinate, and lithium stearate is formed by reacting from about 12.7 weight percent to about 34.1 weight percent nickel acetate, from about 25.3 weight percent to about 68.2 weight percent sodium rosinate, and from about 17.7 weight percent to about 77.3 weight percent lithium stearate.
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) | 1987-07-24 | 1988-01-23 | 1988-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-24 | 1992-01-23 | 1992-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-24 | 1996-01-23 | 1996-07-24 | $7700.00 | Window Closed / Lapsed |