US4303718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing ink formulations
Assignee: Solutia Inc
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Filing: 1980-06-09
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Granted: 1981-12-01
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Expires: 2000-06-09
Abstract
Abstract Ink formulations for use in printing polyvinyl butyral sheets are described. The formulations comprise polyvinyl formal, and polyvinyl butyral sheets printed using the formulations are found to have a reduced tendency to exhibit blocking.
Inventors
- 👤 James A. Snelgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:46
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/0041; B41M5/0064; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10247; B32B17/10256; B32B17/10275; B32B17/1055; B32B17/10761; B41M1/00; B41M1/26; B41M1/30; C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24843; Y10T428/24851; Y10T428/24926; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163; Y10T428/31942; Y10T428/31946
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
34 words
A polyvinylbutyral interlayer printed with an ink formulation comprising a dye, a solvent medium and a polyvinyl formal in an amount sufficient to reduce blocking between polyvinyl butyral sheets printed using such a formulation.
Claim 2
Dependent Claim
34 words
A polyvinylbutyral interlayer printed with an ink formulation comprising a dye, a solvent medium and a polyvinyl formal in an amount sufficient to reduce blocking between polyvinyl butyral sheets printed using such a formulation.
Claim 3
Dependent Claim
82 words
A polyvinyl butyral interlayer printed with a printing ink formulation having a Shell #3 cup viscosity of from 15 to 50 seconds and comprising from 3 to 10 percent by weight of the ink base of a polyvinyl formal having a number average molecular weight of from 15,000 to 40,000 and an acetate content of from 8 to 35 percent by weight, measured as vinyl acetate, and a hydroxyl content of from 2 to 10 percent by weight measured as vinyl alcohol.
Claim 4
Dependent Claim
82 words
A polyvinyl butyral interlayer printed with a printing ink formulation having a Shell #3 cup viscosity of from 15 to 50 seconds and comprising from 3 to 10 percent by weight of the ink base of a polyvinyl formal having a number average molecular weight of from 15,000 to 40,000 and an acetate content of from 8 to 35 percent by weight, measured as vinyl acetate, and a hydroxyl content of from 2 to 10 percent by weight measured as vinyl alcohol.
Claim 5
Dependent Claim
13 words
A laminate comprising a glass sheet and an interlayer according to claim 1.
Claim 6
Dependent Claim
13 words
A laminate comprising a glass sheet and an interlayer according to claim 2.
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) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |