US4243700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering an ink strippable
Assignee: AT&T Inc
•
Filing: 1979-03-07
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Granted: 1981-01-06
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Expires: 1999-03-07
Abstract
Abstract A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil ink, strippable from a surface, upon which it is applied and dried, is disclosed. The method comprises applying to the printed ink, prior to the drying thereof, a modifying powder comprising a petroleum resin.
Inventors
- 👤 John R. Piazza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:33
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/288; B; B41; B41M; B41M7/00; B41M7/02; G; G03; G03F; G03F7/00; G03F7/26; G03F7/42; G03F7/422; H05K2203/00; H05K2203/07; H05K2203/0756; H05K2203/0769; H05K2203/0779; H05K2203/0783
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
74 words
A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil vehicle ink, strippable from a surface upon which it is applied, dried, and stripped which comprises: (a) applying the ink; (b) prior to the drying of the applied ink, applying thereto a modifying powder comprising a petroleum resin; (c) fusing said modifying powder which overlies said ink; and (d) stripping the resultant fused coat.
Claim 2
Independent Claim
74 words
A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil vehicle ink, strippable from a surface upon which it is applied, dried, and stripped which comprises: (a) applying the ink; (b) prior to the drying of the applied ink, applying thereto a modifying powder comprising a petroleum resin; (c) fusing said modifying powder which overlies said ink; and (d) stripping the resultant fused coat.
Claim 3
Dependent Claim
19 words
The method as defined in claim 1 wherein said oil-modified alkyd ink comprises a soybean oil-modified isophthalic pentaerithrytol alkyd.
Claim 4
Dependent Claim
22 words
The method as defined in claim 2 wherein said modifying powder comprises an aliphatic polymer resulting predominantly from a five carbon diolefin.
Claim 5
Dependent Claim
18 words
The method as defined in claim 1 wherein said drying oil vehicle ink comprises a linseed oil vehicle.
Claim 6
Dependent Claim
22 words
The method as defined in claim 4 wherein said modifying powder comprises an aliphatic polymer resulting predominantly from a five carbon diolefin.
Claim 7
Independent Claim
111 words
A method of stripping a dried ink pattern from a surface, which comprises: (a) applying an ink pattern comprising an ink selected from the group consisting of an oil-modified alkyd ink and a drying oil ink to the surface of a substrate; (b) prior to the drying of said ink pattern, dusting thereon a modifying powder comprising a petroleum resin to form a powdered ink pattern; (c) heating said powdered ink pattern to fuse at least said dusted powder to form a modifying coat over the ink pattern; and (d) treating at least said modifying coat covered ink pattern with a suitable solvent to remove said modifying coat covered ink pattern.
Claim 8
Independent Claim
111 words
A method of stripping a dried ink pattern from a surface, which comprises: (a) applying an ink pattern comprising an ink selected from the group consisting of an oil-modified alkyd ink and a drying oil ink to the surface of a substrate; (b) prior to the drying of said ink pattern, dusting thereon a modifying powder comprising a petroleum resin to form a powdered ink pattern; (c) heating said powdered ink pattern to fuse at least said dusted powder to form a modifying coat over the ink pattern; and (d) treating at least said modifying coat covered ink pattern with a suitable solvent to remove said modifying coat covered ink pattern.
Claim 9
Dependent Claim
19 words
The method as defined in claim 6 wherein said oil-modified alkyd ink comprises a soybean oil-modified isophthalic pentaerithrytol alkyd.
Claim 10
Dependent Claim
22 words
The method as defined in claim 7 wherein said modifying powder comprises an aliphatic polymer resulting predominantly from a five carbon diolefin.
Claim 11
Dependent Claim
18 words
The method as defined in claim 6 wherein said drying oil vehicle ink comprises a linseed oil vehicle.
Claim 12
Dependent Claim
22 words
The method as defined in claim 9 wherein said modifying powder comprises an aliphatic polymer resulting predominantly from a five carbon diolefin.
Claim 13
Independent Claim
72 words
A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil vehicle ink, wherein said oil-modified alkyd ink comprises a soybean oil-modified isophthalic pentaerythritol alkyd ink, strippable from a surface upon which it is applied and dried, which comprises: prior to the drying of the applied ink, applying thereto a modifying powder comprising an aliphatic polymer resulting predominantly from a five carbon diolefin.
Claim 14
Independent Claim
72 words
A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil vehicle ink, wherein said oil-modified alkyd ink comprises a soybean oil-modified isophthalic pentaerythritol alkyd ink, strippable from a surface upon which it is applied and dried, which comprises: prior to the drying of the applied ink, applying thereto a modifying powder comprising an aliphatic polymer resulting predominantly from a five carbon diolefin.
Claim 15
Independent Claim
69 words
A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil vehicle ink, wherein said drying oil vehicle comprises a linseed oil vehicle, strippable from a surface upon which it is applied and dried, which comprises: prior to the drying of the applied ink, applying thereto a modifying powder comprising an aliphatic polymer resulting predominantly from a five carbon diolefin.
Claim 16
Independent Claim
69 words
A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil vehicle ink, wherein said drying oil vehicle comprises a linseed oil vehicle, strippable from a surface upon which it is applied and dried, which comprises: prior to the drying of the applied ink, applying thereto a modifying powder comprising an aliphatic polymer resulting predominantly from a five carbon diolefin.
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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) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |