GB893332A - Improvements in or relating to xerographic developers - Google Patents

Improvements in or relating to xerographic developers

Info

Publication number
GB893332A
GB893332A GB9689/58A GB968958A GB893332A GB 893332 A GB893332 A GB 893332A GB 9689/58 A GB9689/58 A GB 9689/58A GB 968958 A GB968958 A GB 968958A GB 893332 A GB893332 A GB 893332A
Authority
GB
United Kingdom
Prior art keywords
relating
xerographic
coloured
black
developers
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
GB9689/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Ltd
Original Assignee
Rank Xerox Ltd
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 by Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB893332A publication Critical patent/GB893332A/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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08706—Polymers of alkenyl-aromatic compounds
    • G03G9/08708—Copolymers of styrene
    • G03G9/08711—Copolymers of styrene with esters of acrylic or methacrylic acid

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

A xerographic toner consists of coloured particles of size between 1 and 20 microns and including 5 to 10% of colouring agent (e.g. carbon black, nigrosine, Calco black or oil red) admixed in a copolymer prepared from a blend of a monomer <FORM:0893332/IV (a)/1> wherein R is H, Me, Et or Pr, containing 5 to 50% of ethyl, propyl or butyl methacrylate. In examples the copolymers are obtained by suspension polymerization and subdivision of the coloured compositions is effected in a jet pulverizer.
GB9689/58A 1957-04-01 1958-03-26 Improvements in or relating to xerographic developers Expired GB893332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US893332XA 1957-04-01 1957-04-01

Publications (1)

Publication Number Publication Date
GB893332A true GB893332A (en) 1962-04-04

Family

ID=22217086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9689/58A Expired GB893332A (en) 1957-04-01 1958-03-26 Improvements in or relating to xerographic developers

Country Status (2)

Country Link
FR (1) FR1194071A (en)
GB (1) GB893332A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2515665A1 (en) * 1974-04-10 1975-10-30 Konishiroku Photo Ind TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2515665A1 (en) * 1974-04-10 1975-10-30 Konishiroku Photo Ind TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGES
US4386147A (en) 1974-04-10 1983-05-31 Konishiroku Photo Industry Co., Ltd. Toner for developing electrostatic latent images

Also Published As

Publication number Publication date
FR1194071A (en) 1959-11-06

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