US5084492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High solids cf printing ink
Assignee: Standard Register Co
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Filing: 1989-09-28
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Granted: 1992-01-28
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Expires: 2009-09-28
Abstract
Abstract A high solids content, aqueous, color developer-containing printing inks having as it main ingredients water, a non-volatile diluent and an acidic color developer such as zinc salicylate or a phenolic resin. The high CF printing ink preferably has a 50-70% by weight solids content and may be used as a low-coat-weight CF coating for preparing carbonless copy paper by coating the high solids CF printing ink on a support sheet at a coat weight of less than 3 gm/m 2 .
Inventors
- 👤 William F. Pinell
- 👤 Michael E. Seitz
- 👤 Gary W. Doll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:42
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
51 words
A high solids content, aqueous, color developer-containing printing ink for use as a coated front color development coating on a carbonless paper sheet, comprising by weight about: 30 to 50% water, 15-40% non-volatile diluent, and 10-60% acidic color developer capable of forming a dye color by reaction with a dye precursor.
Claim 2
Dependent Claim
51 words
A high solids content, aqueous, color developer-containing printing ink for use as a coated front color development coating on a carbonless paper sheet, comprising by weight about: 30 to 50% water, 15-40% non-volatile diluent, and 10-60% acidic color developer capable of forming a dye color by reaction with a dye precursor.
Claim 3
Dependent Claim
23 words
The printing ink of claim 1 wherein said non-volatile diluent is selected from the group consisting of polyhydric alcohols, polyols, amides and ureas.
Claim 4
Dependent Claim
36 words
The printing ink of claim 2 wherein said acidic color developer is selected from the group consisting of zinc salicylate, acetylated phenolic resins, salicylic acid modified phenolic resins, zincated phenolic resins, and novolac type phenolic resins.
Claim 5
Dependent Claim
25 words
The printing ink of claim 3 wherein said non-volatile diluent is alpha methyl glucoside and said acidic color developer is a zincated novolac phenolic resin.
Claim 6
Dependent Claim
30 words
The printing ink of claim 3 further including a binder selected from the group consisting of starch, casein, polyvinyl alcohol, polyvinyl pyrrolidone and carboxylated styrene butadiene latex, and combinations thereof.
Claim 7
Dependent Claim
25 words
The printing ink of claim 5 further including a filler selected from the group consisting of aluminum silicates, calcium carbonates, wax, polyethylene, and combinations thereof.
Claim 8
Dependent Claim
19 words
The printing ink of claim 6 wherein said filler is a combination of aluminium silicate, calcium carbonate and polyethylene.
Claim 9
Dependent Claim
46 words
The printing ink of claim 6 wherein the ingredients are present in the approximate amount by weight of 30 to 50% water 15 to 40% non-volatile diluent 10 to 60% acidic color developer 0 to 10% binder 0 to 70% filler 0 to 5% miscellaneous ingredients.
Claim 10
Dependent Claim
61 words
The printing ink of claim 8 wherein said non-volatile diluent is alpha methyl glucoside, said acidic color developer is a zincated novolac phenolic resin, said binder is selected from the group consisting of polyvinyl alcohol and carboxylated styrene butadiene later and combinations thereof, and said filler is selected from the group consisting of aluminium silicate, calcium carbonate, polyethlene and combinations thereof.
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) | 1995-01-27 | 1995-07-29 | 1996-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-27 | 1999-07-29 | 2000-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-27 | 2003-07-29 | 2004-01-28 | $7700.00 | Window Closed / Lapsed |