GB1478417A - Electrostatographic toner composition - Google Patents
Electrostatographic toner compositionInfo
- Publication number
- GB1478417A GB1478417A GB4900374A GB4900374A GB1478417A GB 1478417 A GB1478417 A GB 1478417A GB 4900374 A GB4900374 A GB 4900374A GB 4900374 A GB4900374 A GB 4900374A GB 1478417 A GB1478417 A GB 1478417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nov
- melting point
- crystalline
- amorphous
- segmented copolymer
- 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
- G03G9/087—Binders for toner particles
- G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
- G03G9/08797—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their physical properties, e.g. viscosity, solubility, melting temperature, softening temperature, glass transition temperature
-
- 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
- G03G9/087—Binders for toner particles
- G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
- G03G9/08788—Block polymers
Abstract
1478417 Electrostatographic toner composition XEROX CORP 12 Nov 1974 [23 Nov 1973 (2)] 49003/74 Heading G2H [Also in Division C3] The composition comprises finely divided particles of a uniform mixture of a colourant material and a polymeric material, said polymeric material comprising a segmented copolymer consisting of at least one crystalline or crystallizable polymeric segment chemically linked to at least one amorphous polymeric segment, said segmented copolymer having a glass transition temperature of less than 20‹C and a melting point of at least 45‹C. In the examples a crystalline poly (hexamethylene sebacate) is block copolymerized with an amorphous poly (2-methyl-2-ethyl-1,3- propylene sebacate) with various coupling agents. Carbon black is then incorporated into the block copolymer while heated above its melting point and the mixture is cooled and pulverized to form toner particles of average size of about 20 microns.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41862873A | 1973-11-23 | 1973-11-23 | |
US41865073A | 1973-11-23 | 1973-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1478417A true GB1478417A (en) | 1977-06-29 |
Family
ID=27024210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4900374A Expired GB1478417A (en) | 1973-11-23 | 1974-11-12 | Electrostatographic toner composition |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5087032A (en) |
CA (1) | CA1036409A (en) |
DE (1) | DE2440348A1 (en) |
FR (1) | FR2252595B1 (en) |
GB (1) | GB1478417A (en) |
NL (1) | NL7414692A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4528257A (en) * | 1982-06-17 | 1985-07-09 | Oce-Nederland B.V. | Toner powder and method of forming fixed images |
US4847175A (en) * | 1987-12-02 | 1989-07-11 | Eastman Kodak Company | Electrophotographic element having low surface adhesion |
US4931375A (en) * | 1986-07-22 | 1990-06-05 | Konishiroku Photo Industry Co., Ltd. | Powdered electrostatic image developing toner |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5665146A (en) * | 1979-10-31 | 1981-06-02 | Toyobo Co Ltd | Electrophotographic toner |
JPS578549A (en) * | 1980-06-20 | 1982-01-16 | Fuji Xerox Co Ltd | Dry toner |
WO1986005602A1 (en) * | 1985-03-15 | 1986-09-25 | Konishiroku Photo Industry Co., Ltd. | Toner for electrostatic image developement and process for forming image by using it |
JPH083660B2 (en) * | 1986-06-19 | 1996-01-17 | コニカ株式会社 | Toner for developing electrostatic image and image forming method using the same |
JPS6366563A (en) * | 1986-09-09 | 1988-03-25 | Toyo Ink Mfg Co Ltd | Powdery toner |
JPH07744B2 (en) * | 1988-08-01 | 1995-01-11 | 三菱重工業株式会社 | Polymer elastomer composition |
JP3491883B2 (en) | 1999-09-28 | 2004-01-26 | 花王株式会社 | Binder resin for toner |
EP1783559B1 (en) * | 2004-05-19 | 2016-04-06 | Mitsui Chemicals, Inc. | Binder resin for toner, method for production thereof, and toner |
JP5742007B2 (en) * | 2011-03-08 | 2015-07-01 | 株式会社リコー | Resin for toner, toner and developer containing the resin for toner, and image forming apparatus, image forming method, and process cartridge using the developer |
JP5954218B2 (en) * | 2013-02-25 | 2016-07-20 | 富士ゼロックス株式会社 | Electrostatic image developing toner, electrostatic image developer, toner cartridge, developer cartridge, process cartridge, image forming apparatus, and image forming method |
-
1974
- 1974-08-22 DE DE19742440348 patent/DE2440348A1/en active Pending
- 1974-09-11 CA CA208,944A patent/CA1036409A/en not_active Expired
- 1974-11-11 NL NL7414692A patent/NL7414692A/en not_active Application Discontinuation
- 1974-11-12 GB GB4900374A patent/GB1478417A/en not_active Expired
- 1974-11-18 JP JP49132621A patent/JPS5087032A/ja active Pending
- 1974-11-22 FR FR7438505A patent/FR2252595B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4528257A (en) * | 1982-06-17 | 1985-07-09 | Oce-Nederland B.V. | Toner powder and method of forming fixed images |
US4931375A (en) * | 1986-07-22 | 1990-06-05 | Konishiroku Photo Industry Co., Ltd. | Powdered electrostatic image developing toner |
US4847175A (en) * | 1987-12-02 | 1989-07-11 | Eastman Kodak Company | Electrophotographic element having low surface adhesion |
Also Published As
Publication number | Publication date |
---|---|
FR2252595A1 (en) | 1975-06-20 |
JPS5087032A (en) | 1975-07-12 |
CA1036409A (en) | 1978-08-15 |
DE2440348A1 (en) | 1975-05-28 |
FR2252595B1 (en) | 1978-11-24 |
NL7414692A (en) | 1975-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |