US4230775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl butyral ink formulation
Assignee: EIDP Inc
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Filing: 1977-12-16
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Granted: 1980-10-28
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Expires: 1997-12-16
Abstract
Abstract Ink formulation based on polyvinyl butyral and useful for printing polyvinyl butyral sheeting provides both improved blocking and improved glass adhesion through increased hydroxyl content in the polyvinyl butyral of the ink formulation.
Inventors
- 👤 Burton N. Derick
- 👤 Robert E. Moynihan
- 👤 Jon W. Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:56
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10247; B32B17/10256; B32B17/10275; B32B17/1055; B32B17/10761; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31946
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
In a printing ink comprising unplasticized polyvinyl butyral, dye and solvent, the improvement which comprises unplasticized polyvinyl butyral having a hydroxyl content of about from 29 to 35 weight percent.
Claim 2
Dependent Claim
30 words
In a printing ink comprising unplasticized polyvinyl butyral, dye and solvent, the improvement which comprises unplasticized polyvinyl butyral having a hydroxyl content of about from 29 to 35 weight percent.
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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |