US5573578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stencil printing emulsion ink
Assignee: Riso Kagaku Corp
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Filing: 1995-09-25
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Granted: 1996-11-12
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Expires: 2015-09-25
Abstract
Abstract A stencil printing emulsion ink of a water-in-oil type is disclosed which contains in an oil phase 1 to 50% by weight, based on the weight of a water phase, of a volatile solvent having a distillation starting temperature of 275 DEG C. or higher and having a viscosity of 10 mm2/sx40 DEG C. or less, and has a weight ratio of the oil phase/water phase of 20 to 50/80 to 50.
Inventors
- 👤 Sadanao Okuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:49
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/023; C09D11/0235; C09D11/03; C09D11/033
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
A water-in-oil stencil printing emulsion ink containing in an oil phase 1 to 50% by weight, based on the weight of a water phase, of a volatile solvent having a distillation starting temperature of 275° C. or higher and having a viscosity of 10 mm 2 /s·40° C. or less, and having a weight ratio of the oil phase/water phase of 20 to 50/80 to 50.
Claim 2
Dependent Claim
66 words
A water-in-oil stencil printing emulsion ink containing in an oil phase 1 to 50% by weight, based on the weight of a water phase, of a volatile solvent having a distillation starting temperature of 275° C. or higher and having a viscosity of 10 mm 2 /s·40° C. or less, and having a weight ratio of the oil phase/water phase of 20 to 50/80 to 50.
Claim 3
Dependent Claim
26 words
The stencil printing emulsion ink according to claim 1 wherein the content of an aromatic component in the volatile solvent is 1% by weight or less.
Claim 4
Dependent Claim
29 words
The stencil printing emulsion ink according to claim 1 wherein the emulsion ink has a viscosity of 27 to 38 mm in terms of spread-o-meter value at 25° C.
Claim 5
Dependent Claim
32 words
The stencil printing emulsion ink according to claim 2 wherein the emulsion ink has a viscosity of 27 to 38 mm terms of spread-o-meter value (diameter after 1 minute) at 25° C.
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) | 1999-11-12 | 2000-05-13 | 2000-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-12 | 2004-05-13 | 2004-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-12 | 2008-05-13 | 2008-11-12 | $7700.00 | Window Closed / Lapsed |