Patent US4482599A successfully refreshed from Google Patents.
US4482599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support layer for electric discharge transfer materials
Assignee: Exxon Mobil Corp
•
Filing: 1982-07-06
•
Granted: 1984-11-13
•
Expires: 2002-07-06
Abstract
Abstract An electric discharge transfer material comprising: (a) an electrically anisotropic support layer having electroconductive particles dispersed in a resin; and (b) at least one thermal or electrothermal transfer layer in the form of a resin layer capable of being broken by electrical discharge and transferred to a record sheet, one of said transfer layers being laminated to said support layer, the improvement wherein said resin in the support layer comprises a phenoxy resin of the formula: <IMAGE> wherein n is about 100.
Inventors
- 👤 Ray H. Luebbe, Jr.
- 👤 Mark A. Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:56
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/3825; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/24942; Y10T428/2495; Y10T428/25; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
82 words
An electric discharge transfer material comprising: (a) an electrically anisotropic support layer having electroconductive particles dispersed in a resin; and (b) at least one thermal or electrothermal transfer layer in the form of a resin layer capable of being broken by electrical discharge and transferred to a record sheet, one of said transfer layers being laminated to said support layer, the improvement wherein said resin in the support layer comprises a phenoxy resin of the formula: ##STR4## wherein n is about 100.
Claim 2
Dependent Claim
82 words
An electric discharge transfer material comprising: (a) an electrically anisotropic support layer having electroconductive particles dispersed in a resin; and (b) at least one thermal or electrothermal transfer layer in the form of a resin layer capable of being broken by electrical discharge and transferred to a record sheet, one of said transfer layers being laminated to said support layer, the improvement wherein said resin in the support layer comprises a phenoxy resin of the formula: ##STR4## wherein n is about 100.
Claim 3
Dependent Claim
19 words
The electric discharge transfer material of claim 1 wherein said phenoxy resin has a molecular weight 20,000 to 30,000.
Claim 4
Dependent Claim
24 words
The electric discharge transfer material of claim 2 wherein said electroconductive particles are graphite particles having a particle size between 0.1 and 20 microns.
Claim 5
Dependent Claim
27 words
The electric discharge transfer material of claim 3 wherein said support layer contains between 5 to 65% by weight graphite, based on the weight of the resin.
Claim 6
Dependent Claim
27 words
The electric discharge transfer material of claim 4 wherein said support layer contains between 15 to 45% by weight graphite based on the weight of the resin.
Claim 7
Dependent Claim
27 words
The electric discharge transfer material of claim 5, wherein the semiconductive resin layer comprises a thermoplastic or thermosetting resin and carbon black and a filler dispersed therein.
Claim 8
Dependent Claim
27 words
The electric discharge transfer material of claim 3 wherein said support layer contains between 25 and 35% by weight graphite based on the weight of the resin.
Claim 9
Dependent Claim
21 words
The electric discharge transfer material of claim 7 wherein the particle size of said graphite is between 0.1 and 1 micron.
Claim 10
Dependent Claim
115 words
An electric discharge transfer material comprising: (a) a semiconductive resin layer capable of being broken by electric discharging which has a surface resistance of 10 to 10 9 ohms and a volume resistance of 1 to 10 6 ohms-cm; (b) a electroconductive particle-containing electrically anisotropic phenoxy resin layer wherein said resin is of the formula: ##STR5## wherein n is about 100 and said resin layer is laminated on one surface of the semiconductive resin layer (a); and (c) a conductive layer having a surface resistance of not more than 10 4 ohms and a volume resistance of not more than 10 2 ohms-cm, which is laminated on the other surface of the semiconductive resin layer.
Claim 11
Dependent Claim
115 words
An electric discharge transfer material comprising: (a) a semiconductive resin layer capable of being broken by electric discharging which has a surface resistance of 10 to 10 9 ohms and a volume resistance of 1 to 10 6 ohms-cm; (b) a electroconductive particle-containing electrically anisotropic phenoxy resin layer wherein said resin is of the formula: ##STR5## wherein n is about 100 and said resin layer is laminated on one surface of the semiconductive resin layer (a); and (c) a conductive layer having a surface resistance of not more than 10 4 ohms and a volume resistance of not more than 10 2 ohms-cm, which is laminated on the other surface of the semiconductive resin layer.
Claim 12
Dependent Claim
33 words
The electric discharge transfer material of claim 9 wherein said electroconductive particles are graphite and said layer (b) contains between 5 to 65% by weight graphite, based on the weight of the resin.
Claim 13
Dependent Claim
27 words
The electric discharge transfer material of claim 10 wherein said layer (b) contains between 25 and 35% by weight graphite based on the weight of said resin.
Claim 14
Dependent Claim
21 words
The electric discharge transfer material of claim 11 wherein the particle size of said graphite is between 0.1 and 1 micron.
Claim 15
Dependent Claim
27 words
The electric discharge transfer material of claim 12 wherein at least one of the semiconductive resin layer (a) and the conductive layer (c) contains a coloring substance.
Claim 16
Dependent Claim
15 words
The electric discharge transfer material of claim 13 wherein the coloring substance is carbon black.
References Cited (Backward Citations)
JPS5050929A
Cited
US4163075A
Cited
JPS5345143A
Cited
US4251612A
Cited
US4308314A
Cited
US4358474A
Cited
US4390609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-13 | 1988-05-14 | 1988-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-13 | 1992-05-14 | 1992-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-13 | 1996-05-14 | 1996-11-13 | $7700.00 | Window Closed / Lapsed |