GB1535891A - Carrier for development powders used in electrophotographic copying - Google Patents
Carrier for development powders used in electrophotographic copyingInfo
- Publication number
- GB1535891A GB1535891A GB2558/77A GB255877A GB1535891A GB 1535891 A GB1535891 A GB 1535891A GB 2558/77 A GB2558/77 A GB 2558/77A GB 255877 A GB255877 A GB 255877A GB 1535891 A GB1535891 A GB 1535891A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coated
- carrier
- electrophotographic copying
- jan
- powders used
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000843 powder Substances 0.000 title 1
- 239000011162 core material Substances 0.000 abstract 3
- 229910017881 Cu—Ni—Fe Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 229920002313 fluoropolymer Polymers 0.000 abstract 1
- 239000004811 fluoropolymer Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/103—Glass particles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/083—Magnetic toner particles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/083—Magnetic toner particles
- G03G9/0831—Chemical composition of the magnetic components
- G03G9/0832—Metals
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/10—Developers with toner particles characterised by carrier particles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
Abstract
1535891 Coated electrophotographic carriers PITNEY BOWES INC 21 Jan 1977 [23 Jan 1976] 2558/77 Heading B2E [Also in Divisions Cl and G2] An electrophotographic carrier comprises a core material selected from sand, glass and metal or metal compounds and a coating of a tetrafluoroethylene telomer of molecular weight 3,000-30,000. Suitable cores may be ferromagnetic, e.g. magnetic oxides, Fe, Co, Ni, steel, alloys of Cu-Ni-Fe. Such a coated material may be prepared by immersing the core material in a 0.1 to 10% dispersion or solution of the fluoropolymer in an organic solvent, separating the coated particles and heating above the melting point of the polymer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65183676A | 1976-01-23 | 1976-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1535891A true GB1535891A (en) | 1978-12-13 |
Family
ID=24614422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2558/77A Expired GB1535891A (en) | 1976-01-23 | 1977-01-21 | Carrier for development powders used in electrophotographic copying |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5292727A (en) |
| AU (1) | AU511292B2 (en) |
| BR (1) | BR7700195A (en) |
| CA (1) | CA1080534A (en) |
| DE (1) | DE2702467A1 (en) |
| DK (1) | DK24777A (en) |
| FR (1) | FR2339191A1 (en) |
| GB (1) | GB1535891A (en) |
| IT (1) | IT1086758B (en) |
| NL (1) | NL7700454A (en) |
| NO (1) | NO770197L (en) |
| SE (1) | SE7700366L (en) |
| ZA (1) | ZA767702B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0020181A1 (en) * | 1979-06-04 | 1980-12-10 | Xerox Corporation | Process for preparing coated carrier particles for electrostatographic developers |
| GB2209467A (en) * | 1987-09-07 | 1989-05-17 | Glaverbel | Fire hazard control |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57102377A (en) * | 1980-12-17 | 1982-06-25 | Teraoka Seiko Co Ltd | Bar code printer |
| JPS5953857A (en) * | 1982-09-21 | 1984-03-28 | Kanto Denka Kogyo Kk | Coated carrier for electrophotography |
| US20060051570A1 (en) * | 2004-09-03 | 2006-03-09 | Kaori Iwamoto | Perfluoroelastomer articles having good surface properties |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3438773A (en) * | 1964-10-02 | 1969-04-15 | Matsushita Electric Industrial Co Ltd | Flexible transparent electrophotographic film and method of development of said film |
| US3507686A (en) * | 1967-06-23 | 1970-04-21 | Xerox Corp | Method of coating carrier beads |
| US3922382A (en) * | 1971-01-28 | 1975-11-25 | Ibm | Method of manufacturing carrier particles |
| BE795428A (en) * | 1972-02-14 | 1973-05-29 | Ibm | COATING FOR CARRIER PARTICLES USED IN AN ELECTROPHOTOGRAPHIC REPRODUCTION PROCESS |
| GB1438973A (en) * | 1972-05-30 | 1976-06-09 | Xerox Corp | Developdr material |
| CA1067326A (en) * | 1975-03-20 | 1979-12-04 | Bheema R. Vijayendran | Carrier powder with core of metal, sand or glass and a coating of a perfluoro compound |
-
1976
- 1976-12-24 CA CA268,763A patent/CA1080534A/en not_active Expired
- 1976-12-30 ZA ZA767702A patent/ZA767702B/en unknown
-
1977
- 1977-01-12 BR BR7700195A patent/BR7700195A/en unknown
- 1977-01-14 SE SE7700366A patent/SE7700366L/en unknown
- 1977-01-17 NL NL7700454A patent/NL7700454A/en not_active Application Discontinuation
- 1977-01-20 JP JP448877A patent/JPS5292727A/en active Pending
- 1977-01-20 AU AU21486/77A patent/AU511292B2/en not_active Expired
- 1977-01-21 NO NO770197A patent/NO770197L/en unknown
- 1977-01-21 GB GB2558/77A patent/GB1535891A/en not_active Expired
- 1977-01-21 IT IT7747738Q patent/IT1086758B/en active
- 1977-01-21 DK DK24777A patent/DK24777A/en unknown
- 1977-01-21 DE DE19772702467 patent/DE2702467A1/en not_active Withdrawn
- 1977-01-24 FR FR7701919A patent/FR2339191A1/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0020181A1 (en) * | 1979-06-04 | 1980-12-10 | Xerox Corporation | Process for preparing coated carrier particles for electrostatographic developers |
| GB2209467A (en) * | 1987-09-07 | 1989-05-17 | Glaverbel | Fire hazard control |
| US4968441A (en) * | 1987-09-07 | 1990-11-06 | Glaverbel | Fire control composition |
| US5061382A (en) * | 1987-09-07 | 1991-10-29 | Glaverbel | Fire control compositions |
| GB2209467B (en) * | 1987-09-07 | 1992-03-25 | Glaverbel | Fire hazard control |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2148677A (en) | 1978-07-27 |
| BR7700195A (en) | 1977-09-06 |
| AU511292B2 (en) | 1980-08-07 |
| IT1086758B (en) | 1985-05-31 |
| FR2339191A1 (en) | 1977-08-19 |
| FR2339191B1 (en) | 1982-05-21 |
| CA1080534A (en) | 1980-07-01 |
| SE7700366L (en) | 1977-07-24 |
| NL7700454A (en) | 1977-07-26 |
| ZA767702B (en) | 1977-11-30 |
| NO770197L (en) | 1977-07-26 |
| DK24777A (en) | 1977-07-24 |
| DE2702467A1 (en) | 1977-07-28 |
| JPS5292727A (en) | 1977-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |