GB1225980A - - Google Patents

Info

Publication number
GB1225980A
GB1225980A GB1225980DA GB1225980A GB 1225980 A GB1225980 A GB 1225980A GB 1225980D A GB1225980D A GB 1225980DA GB 1225980 A GB1225980 A GB 1225980A
Authority
GB
United Kingdom
Prior art keywords
resin
april
gum
rosin
mixture
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
Application number
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1225980A publication Critical patent/GB1225980A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2996—Glass particles or spheres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

1,225,980. Powder developer. RANK XEROX Ltd. April 16, 1968 [April 17, 1967], No. 17877/68. Heading G2H. An electrostatographic developer mixture comprises toner particles and carrier beads comprising a homogeneous glass composition comprising (i) 10-40 % SiO 2 (ii) 4-50 % BaO and (iii) 15-40 % TiO 2 . Other oxides which may be present are ZrO 2 , up to 5% alkali metal oxide, PbO, B 2 O 3 and CaO. The toners specified include pigmented gum copal, gum sandurac, rosin coumarone indene resin, asphaltum, uintate, phenol formaldehyde resin which may be rosin modified, methacrylic resin, polystyrene, polypropylene, epoxy resin and polythylene and a mixture of carbon black, styrene-n-butyl methacrylate copolymer and polyvinyl butyral.
GB1225980D 1967-04-17 1968-04-16 Expired GB1225980A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63119267A 1967-04-17 1967-04-17
US9384770A 1970-11-30 1970-11-30

Publications (1)

Publication Number Publication Date
GB1225980A true GB1225980A (en) 1971-03-24

Family

ID=26787961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225980D Expired GB1225980A (en) 1967-04-17 1968-04-16

Country Status (8)

Country Link
US (2) US3591503A (en)
BE (1) BE713751A (en)
CH (1) CH508903A (en)
DE (1) DE1772220A1 (en)
FR (1) FR1560849A (en)
GB (1) GB1225980A (en)
LU (1) LU55904A1 (en)
NL (1) NL6805319A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019903A (en) * 1971-01-06 1977-04-26 Xerox Corporation Electrostatic development
US3900589A (en) * 1972-08-03 1975-08-19 Xerox Corp Electrostatographic imaging process
JPS585426B2 (en) * 1974-12-12 1983-01-31 株式会社リコー Pressure fixing toner powder
US4670366A (en) * 1983-06-24 1987-06-02 Canyon Materials Research & Engineering High energy beam sensitive glasses
US4894303A (en) * 1983-06-24 1990-01-16 Canyon Materials Research & Engineering High energy beam-sensitive glasses
US4567104A (en) * 1983-06-24 1986-01-28 Canyon Materials Research & Engineering High energy beam colored glasses exhibiting insensitivity to actinic radiation
JPS6368849A (en) * 1986-09-10 1988-03-28 Kao Corp Electrophotographic developer composition
US5061586A (en) * 1990-04-05 1991-10-29 Eastman Kodak Company Glass composite magnetic carrier particles
US5190841A (en) * 1991-12-19 1993-03-02 Eastman Kodak Company Two-phase ferroelectric-ferromagnetic composite and carrier therefrom
US5190842A (en) * 1991-12-19 1993-03-02 Eastman Kodak Company Two phase ferroelectric-ferromagnetic composite carrier
US5336579A (en) * 1992-09-03 1994-08-09 Xerox Corporation Color developer compositions containing bare carrier cores and coated carrier cores
US5268249A (en) * 1992-10-29 1993-12-07 Eastman Kodak Company Magnetic carrier particles
US5306592A (en) * 1992-10-29 1994-04-26 Eastman Kodak Company Method of preparing electrographic magnetic carrier particles
US5634181A (en) * 1993-02-16 1997-05-27 Fuji Xerox Co., Ltd. Developing apparatus
US20020019305A1 (en) 1996-10-31 2002-02-14 Che-Kuang Wu Gray scale all-glass photomasks
US6562523B1 (en) 1996-10-31 2003-05-13 Canyon Materials, Inc. Direct write all-glass photomask blanks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA557577A (en) * 1958-05-20 The Battelle Development Corporation Xerographic developer
US2618551A (en) * 1948-10-20 1952-11-18 Haloid Co Developer for electrostatic images
US3326848A (en) * 1964-07-02 1967-06-20 Xerox Corp Spray dried latex toners

Also Published As

Publication number Publication date
FR1560849A (en) 1969-03-21
LU55904A1 (en) 1968-11-27
DE1772220A1 (en) 1971-01-21
CH508903A (en) 1971-06-15
US3591503A (en) 1971-07-06
US3713819A (en) 1973-01-30
NL6805319A (en) 1968-10-18
BE713751A (en) 1968-10-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees