US5185035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent hot melt jet ink
Assignee: Coates Electrographics Ltd
•
Filing: 1991-07-29
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Granted: 1993-02-09
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Expires: 2011-07-29
Abstract
Abstract The transparent hot melt jet inks described in the specification include a coloring agent, a vehicle for the coloring agent including a thermoplastic nontransparent base material and a transparentizing agent containing a glycol ester of a C 18-35 fatty acid, a glyceryl ester of a C 18-36 fatty acid with metal soaps, a polyethylene wax having a molecular weight of 400 to 1200, a synthetic paraffin wax, or a linear alcohol with a molecular weight of 500 to 1000 or a mixture thereof, a microcrystalline or modified microcrystalline wax.
Inventors
- 👤 Edward A. Brown
- 👤 John P. N. Haxell
- 👤 Michael A. Cockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:31
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/34
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
141 words
A transparent hot melt jet ink having a viscosity in the range from about 5 centipoise to about 100 centipoise in the temperature range from about 100° C. to about 130° C. comprising a coloring agent and thermoplastic vehicle for the coloring agent, a viscosity modifier which is different from the thermoplastic vehicle and which is normally nontransparent when solidified, and a transparentizing agent which is different from the vehicle and the viscosity modifier and is selected from a group consisting of a glycol ester of C 18-35 fatty acids, glycerol esters of C 18-36 fatty acids plus metal soaps, polyethylene waxes, synthetic paraffin waxes, long chain linear alcohols, microrystalline waxes and modified microcrystalline waxes and mixtures thereof wherein the transparentizing agent is present in an amount sufficient to provide a transparent film of reduced crystallinity when the ink is solidified.
Claim 2
Dependent Claim
141 words
A transparent hot melt jet ink having a viscosity in the range from about 5 centipoise to about 100 centipoise in the temperature range from about 100° C. to about 130° C. comprising a coloring agent and thermoplastic vehicle for the coloring agent, a viscosity modifier which is different from the thermoplastic vehicle and which is normally nontransparent when solidified, and a transparentizing agent which is different from the vehicle and the viscosity modifier and is selected from a group consisting of a glycol ester of C 18-35 fatty acids, glycerol esters of C 18-36 fatty acids plus metal soaps, polyethylene waxes, synthetic paraffin waxes, long chain linear alcohols, microrystalline waxes and modified microcrystalline waxes and mixtures thereof wherein the transparentizing agent is present in an amount sufficient to provide a transparent film of reduced crystallinity when the ink is solidified.
Claim 3
Dependent Claim
24 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent comprises an ethylene glycol ester of a C 18-35 fatty acid.
Claim 4
Dependent Claim
23 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent comprises a glyceryl ester of a C 18-36 fatty acid.
Claim 5
Dependent Claim
18 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent comprises a synthetic paraffin wax.
Claim 6
Dependent Claim
17 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent comprises a linear alcohol.
Claim 7
Dependent Claim
26 words
A transparent hot melt ink according to claim 5 wherein the linear alcohol has a molecular weight in the range from about 500 to about 1000.
Claim 8
Dependent Claim
17 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent comprises a polyethylene wax.
Claim 9
Dependent Claim
26 words
A transparent hot melt ink according to claim 7 wherein the polyethylene wax has a molecular weight in the range from about 400 to about 1200.
Claim 10
Dependent Claim
17 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent comprises a microcrystalline wax.
Claim 11
Dependent Claim
18 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent comprises a modified microcrystalline wax.
Claim 12
Dependent Claim
29 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent is present in an amount of from about 2 percent to about 50 percent by weight.
Claim 13
Dependent Claim
28 words
A transparent hot melt ink according to claim 1 wherein the transparentizing agent is present in an amount from about 2 percent to about 25 percent by weight.
Claim 14
Dependent Claim
34 words
A transparent hot melt ink according to claim 1 having a viscosity in the range from about 10 to about 35 centipoise in the temperature range from about 115° C. to about 125° C.
Claim 15
Dependent Claim
34 words
A transparent hot melt ink according to claim 1 having a viscosity in the range from about 15 to about 30 centipoise in the temperature range from about 115° C. to about 125° C.
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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) | 1996-02-09 | 1996-08-10 | 1997-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-09 | 2000-08-10 | 2001-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-09 | 2004-08-10 | 2005-02-09 | $7700.00 | Window Closed / Lapsed |