Patent US5507782A successfully refreshed from Google Patents.
Patent US4851045A successfully refreshed from Google Patents.
US4851045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-melt ink
Assignee: Seiko Epson Corp
•
Filing: 1987-08-24
•
Granted: 1989-07-25
•
Expires: 2007-08-24
Abstract
Abstract A hot-melt ink containing between about 5 and 50 parts by weight of montain wax or oxidized montan-type wax or both having a melting point between about 60 DEG and 125 DEG C. is provided. The ink is useful in a heat transfer sheet where it is provided as a layer on one side of a substrate and a resistive layer is provided on the substrate on the side opposite the ink. Inks prepared in accordance with the invention exhibit good superimposing performance and improved blocking resistance.
Inventors
- 👤 Makoto Taniguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:20
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/392
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
79 words
A hot-melt ink for a fusible ink sheet having improved color superimposing performance and blocking resistance, comprising an effective amount of a coloring agent being present in amounts up to about 15% by weight, about 5 and 50% by weight of a wax binder for the hot-melt ink, the wax binder selected from, oxidized montan-type wax and mixtures of montan wax with said oxidized montan-type waxes, the wax binder having a melting point between about 60° and 125° C.
Claim 2
Dependent Claim
79 words
A hot-melt ink for a fusible ink sheet having improved color superimposing performance and blocking resistance, comprising an effective amount of a coloring agent being present in amounts up to about 15% by weight, about 5 and 50% by weight of a wax binder for the hot-melt ink, the wax binder selected from, oxidized montan-type wax and mixtures of montan wax with said oxidized montan-type waxes, the wax binder having a melting point between about 60° and 125° C.
Claim 3
Dependent Claim
105 words
The hot-melt ink of claim 1, wherein the wax is oxidized montan-type wax selected from: (a) acid-modified montan wax having the formula: ##STR4## wherein R is an organic group having between about 25 and 35 carbon atoms; (b) ester-modified montan wax having the formula: ##STR5## wherein R and R' are organic groups having between about 25 and 35 carbon atoms and n is an integer greater than or equal to 1; and (c) partially saponified ester-modified montan type wax having the formula: ##STR6## where R and R' are organic groups having between about 25 and 35 carbon atoms and M is an alkaline earth metal.
Claim 4
Dependent Claim
15 words
The hot-melt ink of claim 1, wherein the coloring material is a dye or pigment.
Claim 5
Dependent Claim
15 words
The hot-melt ink of claim 1, wherein the hot-melt ink further includes a second wax.
Claim 6
Dependent Claim
20 words
The hot-melt ink of claim 4, wherein the second wax is selected from carnauba wax, N-paraffin wax, and mixtures thereof.
Claim 7
Dependent Claim
21 words
The hot-melt ink of claim 4, wherein the second wax is present in an amount up to about 50% by weight.
Claim 8
Dependent Claim
15 words
The hot-melt ink of claim 1, wherein the hot-melt ink further includes ethylene-vinyl acetate copolymer.
Claim 9
Dependent Claim
22 words
The hot-melt ink of claim 7, wherein the ethylene-vinyl acetate copolymer is present in an amount up to about 15% by weight.
Claim 10
Dependent Claim
28 words
The hot-melt ink of claim 1, wherein the hot-melt ink further includes an effective amount of a coloring material dispersant for dispersing the coloring material in the ink.
Claim 11
Dependent Claim
20 words
The hot-melt ink of claim 1, wherein the hot-melt ink is used as a layer of a fusible ink sheet.
Claim 12
Dependent Claim
33 words
The hot-melt ink of claim 10, wherein the fusible ink sheet includes a substrate having the hot-melt ink on one side thereof and an electrothermal resistive layer on the side opposite the ink.
Claim 13
Dependent Claim
13 words
The hot-melt ink of claim 11, wherein the substrate is a polyester film.
Claim 14
Dependent Claim
22 words
The hot-melt ink of claim 11, wherein the electrothermal resistive layer includes polyester resin, conductive carbon black and a carbon black dispersant.
Claim 15
Dependent Claim
20 words
The hot-melt ink of claim 2, wherein the oxidized montan-type wax is synthesized from coal and primarily includes montan wax.
References Cited (Backward Citations)
US3248236A
Cited
US3389011A
Cited
US3394095A
Cited
US4038297A
Cited
US3994737A
Cited
US4066810A
Cited
US4064149A
Cited
US4171981A
Cited
US4484948A
Cited
US4636258A
Cited
US4707395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |