GB1345027A - Carrier coatings - Google Patents
Carrier coatingsInfo
- Publication number
- GB1345027A GB1345027A GB2279971A GB2279971A GB1345027A GB 1345027 A GB1345027 A GB 1345027A GB 2279971 A GB2279971 A GB 2279971A GB 2279971 A GB2279971 A GB 2279971A GB 1345027 A GB1345027 A GB 1345027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resins
- beads
- rosin
- mixtures
- listed
- 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
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
- G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
- G03G9/1132—Macromolecular components of coatings
- G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
1345027 Coated products XEROX CORP 19 April 1971 [5 Feb 1970[ 22799/71 Heading B2E [Also in Division G2] An electrostatographic developer mixture comprises finely-divided toner particles electrostatically clinging to the surface of carrier beads, each of the beads having a uniform coating comprising cellulose acetate butyrate. The cores of the beads may be of glass, flintshot, sodium chloride, ammonium chloride, aluminium potassium chloride, Rochelle salt, sodium nitrate, potassium chlorate, granular zircon, silicon, polymethylmethacrylate, silicon dioxide, iron, steel, nickel, carborundum and mixtures of these. The particles are coated by contacting with the cellulose acetate butyrate in solution in an organic solvent, of which several are listed. Plasticizers of which many are listed may also be present in the coating. Typical toner materials may be gum copal, gum sandarac, rosin, coumarone-indene resin, asphaltum, gilsonite, phenol-formaldehyde resins, rosin-modified phenol-formaldehyde resins, methacrylic resins, polystyrene resins, polypropylene resins, epoxy resins, polyethylene resins, and mixtures of these.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1831670A | 1970-02-05 | 1970-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1345027A true GB1345027A (en) | 1974-01-30 |
Family
ID=21787316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2279971A Expired GB1345027A (en) | 1970-02-05 | 1971-04-19 | Carrier coatings |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5127135B1 (en) |
CA (1) | CA941210A (en) |
GB (1) | GB1345027A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127489U (en) * | 1977-03-17 | 1978-10-09 | ||
JP4557820B2 (en) * | 2004-06-24 | 2010-10-06 | キヤノン株式会社 | Resin-coated carrier for electrophotographic developer, two-component developer comprising the same, and developer for replenishment |
-
1970
- 1970-10-08 CA CA095,135A patent/CA941210A/en not_active Expired
- 1970-12-29 JP JP45121834A patent/JPS5127135B1/ja active Pending
-
1971
- 1971-04-19 GB GB2279971A patent/GB1345027A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA941210A (en) | 1974-02-05 |
JPS5127135B1 (en) | 1976-08-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |