US4711802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous ink for use on fluorocarbon surfaces
Assignee: EIDP Inc
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Filing: 1986-08-14
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Granted: 1987-12-08
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Expires: 2006-08-14
Abstract
Abstract A water based ink for printing on fluorocarbon surfaces is disclosed. The ink contains 1.5 to 4.0 weight percent of an acrylic copolymer thixotropic agent, from 2.0 to 3.0 parts of a fluorocarbon resin powder, 1.3 to 3.3 parts of a non-ionic surfactant, 4.0 to 5.0 parts of an alcohol containing 7-12 carbon atoms, from 10 to 15 parts of ethylene glycol, up to 10 parts of a pigment and the remainder water.
Inventors
- 👤 Harvey P. Tannenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:27
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/25; Y10T428/251; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
83 words
An aqueous ink having a viscosity of from 3,000 to 8,000 centapoises containing from 1.5 to 4.0 parts of an acrylic copolymer thixotropic agent, from 2.0 to 3.0 parts of finely divided fluorocarbon resin particles, from 1.3 to 3.3 parts of a non-ionic surfactant, from 4.0 to 5.0 parts of an alcohol containing 7 to 12 carbon atoms, from 10 to 15 parts of ethylene glycol, up to 10 parts of an inert colorant and about 20 to about 50 parts of water.
Claim 2
Dependent Claim
83 words
An aqueous ink having a viscosity of from 3,000 to 8,000 centapoises containing from 1.5 to 4.0 parts of an acrylic copolymer thixotropic agent, from 2.0 to 3.0 parts of finely divided fluorocarbon resin particles, from 1.3 to 3.3 parts of a non-ionic surfactant, from 4.0 to 5.0 parts of an alcohol containing 7 to 12 carbon atoms, from 10 to 15 parts of ethylene glycol, up to 10 parts of an inert colorant and about 20 to about 50 parts of water.
Claim 3
Dependent Claim
19 words
An article having a fluorocarbon surface having indicia formed on such surface formed of the ink of claim 1.
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) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |