Patent US3928702A successfully refreshed from Google Patents.
US3928702A
Expired / Lapsed
US
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Process for manufacturing an activated clay-coated paper for use as a pressure-sensitive copying paper
Assignee: Fujifilm Holdings Corp
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Filing: 1974-03-25
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Granted: 1975-12-23
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Expires: 1994-03-25
Abstract
Abstract A process for the production of a pressure sensitive copying paper which comprises coating the paper with a water dispersion of a clay; the improvement which comprises adding a waterdispersible emulsion of a hydrophobic oily material, said oily material being a liquid at room temperature, to the water dispersion of the clay.
Inventors
- 👤 Hiroharu Matsukawa
- 👤 Takao Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:25
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; B41M5/1555; Y; Y10; Y10T; Y10T428/00; Y10T428/25
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
123 words
IN THE PROCESS FOR PRODUCING COLOR ON A SUPPORT HAVING COATED THEREON A LAYER OF AN ELECTRON ACCEPTING CLAY MATERIAL CAPABLE OF FORMING A DISTINCT COLOR WHEN CONTACTED WITH A COLORLESS, ELECTRON DONATING COLOR FORMER WHEREIN A LAYER OF ELECTRON ACCEPTING CLAY MATERIAL IS APPLIED TO SAID SUPPORT AND THEREAFTER SAID ELECTRON ACCEPTING CLAY IS CONTACT WITH A COLORLESS, ELECTRON DONATING COLOR FORMER, THE IMPROVEMENT WHICH COMPRISES ADDING A HYDROPHOBIC OILY MATERIA; AS AN OIL IN WATER EMULSION TO A WATER DISPRESION OF SAID CLAY AND THEN COATING THE OBTAINED WATER DISPERSIBLE EMULSION AND SAID CLAY ONTO THE SUPPORT AND DRYING THE CLAY COATED SUPPORT, THE AMOUNT OF SAID HYDROPHOBIC OILY MATERIAL TO THE CLAY RANGING FROM 1:50 TO 1:2 PARTS BY WEIGHT.
Claim 2
Dependent Claim
123 words
IN THE PROCESS FOR PRODUCING COLOR ON A SUPPORT HAVING COATED THEREON A LAYER OF AN ELECTRON ACCEPTING CLAY MATERIAL CAPABLE OF FORMING A DISTINCT COLOR WHEN CONTACTED WITH A COLORLESS, ELECTRON DONATING COLOR FORMER WHEREIN A LAYER OF ELECTRON ACCEPTING CLAY MATERIAL IS APPLIED TO SAID SUPPORT AND THEREAFTER SAID ELECTRON ACCEPTING CLAY IS CONTACT WITH A COLORLESS, ELECTRON DONATING COLOR FORMER, THE IMPROVEMENT WHICH COMPRISES ADDING A HYDROPHOBIC OILY MATERIA; AS AN OIL IN WATER EMULSION TO A WATER DISPRESION OF SAID CLAY AND THEN COATING THE OBTAINED WATER DISPERSIBLE EMULSION AND SAID CLAY ONTO THE SUPPORT AND DRYING THE CLAY COATED SUPPORT, THE AMOUNT OF SAID HYDROPHOBIC OILY MATERIAL TO THE CLAY RANGING FROM 1:50 TO 1:2 PARTS BY WEIGHT.
Claim 3
Dependent Claim
19 words
The process of claim 1, wherein said hydrophobic oily material has a boiling point ranging from 60* to 500*C.
Claim 4
Dependent Claim
14 words
The process of claim 1, wherein said water dispersion of clay contains a binder.
Claim 5
Dependent Claim
35 words
The process of claim 1, wherein said hydrophobic oily material is a member selected from the group consisting of a vegetable oil, an animal oil, a mineral oil, a synthetic oil, and an organic solvent.
Claim 6
Dependent Claim
38 words
The process of claim 4, wherein the oily material is a synthetic oil and is selected from the group consisting of chlorinated diphenyl, chlorinated paraffin, octyldiphthalate, dimethylphthalate, diethylphthalate, dibutylphthalate, dioctylphthalate, butylbenzylphthalate, tricresylphosphate, trioctylphthalate, silicone oil, and fluorinated oil.
Claim 7
Dependent Claim
33 words
The process of claim 4, wherein said oily material is an organic solvent and is a member selected from the group consisting of an aliphatic hydrocarbon, an aromatic hydrocarbon, and a halogenated hydrocarbon.
Claim 8
Dependent Claim
23 words
The process of claim 6, wherein said aliphatic hydrocarbon is a member selected from the group consisting of octane, decane, dodecane, and cetane.
Claim 9
Dependent Claim
27 words
The process of claim 6, wherein said aromatic hydrocarbon is a member selected from the group consisting of benzene, toluene, xylene, amyl benzene, ethylbenzene, diethylbenzene, and triethylbenzene.
Claim 10
Dependent Claim
29 words
The process of claim 6, wherein said halogenated hydrocarbon is a member selected from the group consisting of carbon tetrachloride, ethylene chloride, trichloroethane, trichloroethylene, dichlorobutane, chlorobenzene, trichlorobenzene, and chlorotoluene.
Claim 11
Dependent Claim
76 words
A PRESSURE-SENSITIVE COPYING PAPER COMPRISING A LAYER OF MICROCAPSULES CONTAINING A COLOR FORMER AND A LAYER OF AN ELECTRON-ACCEPTING CLAY MATERIAL CAPABLE OF FORMING A DISTINCT COLOR WHEN CONTACTED WITH THE COLOR FORMER, SAID LAYERS COATED ON THE SAME OR DIFFERENT SUPPORT, AND SAID LAYER OF ELECTRON: ACCEPTING CLAY MATERIAL CONTANING A BINDER AND A HYDROPHOBIC OILY MATERIAL, THE AMOUNT OF SAID HYDROPHOBIC OILY MATERIAL TO THE CLAY RANGING FROM 1:50 TO 1:2 PARTS BY WEIGHT.
Claim 12
Dependent Claim
76 words
A PRESSURE-SENSITIVE COPYING PAPER COMPRISING A LAYER OF MICROCAPSULES CONTAINING A COLOR FORMER AND A LAYER OF AN ELECTRON-ACCEPTING CLAY MATERIAL CAPABLE OF FORMING A DISTINCT COLOR WHEN CONTACTED WITH THE COLOR FORMER, SAID LAYERS COATED ON THE SAME OR DIFFERENT SUPPORT, AND SAID LAYER OF ELECTRON: ACCEPTING CLAY MATERIAL CONTANING A BINDER AND A HYDROPHOBIC OILY MATERIAL, THE AMOUNT OF SAID HYDROPHOBIC OILY MATERIAL TO THE CLAY RANGING FROM 1:50 TO 1:2 PARTS BY WEIGHT.
Claim 13
Dependent Claim
37 words
The pressure-sensitive copying paper of claim 10, wherein said hydrophobic oily material is a member selected from the group consisting of a vegetable oil, an animal oil, a mineral oil, a synthetic oil, and an organic solvent.
Claim 14
Dependent Claim
21 words
The pressure-sensitive copying paper of claim 10, wherein said hydrophobic oily material has a boiling point ranging from 60* to 500*C.
References Cited (Backward Citations)
US2961334A
Cited
US3356517A
Cited
US3432327A
Cited
US3372044A
Cited
US3427971A
Cited
US3372050A
Cited
US3554781A
Cited
US3684549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |