GB1471083A - Process for preparing a printing master - Google Patents

Process for preparing a printing master

Info

Publication number
GB1471083A
GB1471083A GB1957575A GB1957575A GB1471083A GB 1471083 A GB1471083 A GB 1471083A GB 1957575 A GB1957575 A GB 1957575A GB 1957575 A GB1957575 A GB 1957575A GB 1471083 A GB1471083 A GB 1471083A
Authority
GB
United Kingdom
Prior art keywords
curing agent
activated
curing agents
temperature active
gum
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
GB1957575A
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 Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of GB1471083A publication Critical patent/GB1471083A/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
    • G03G13/26—Electrographic processes using a charge pattern for the production of printing plates for non-xerographic printing processes
    • G03G13/28—Planographic printing plates
    • G03G13/286—Planographic printing plates for dry lithography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/003—Printing plates or foils; Materials therefor with ink abhesive means or abhesive forming means, such as abhesive siloxane or fluoro compounds, e.g. for dry lithographic printing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

1471083 Coated products XEROX CORP 9 May 1975 [27 June 1974] 19575/75 Heading B2E [Also in Divisions B6 and C3] A printing plate blank comprises a substrate which carries a coating of a silicone gum containing two curing agents, each activatable under different conditions, one of the curing agents having been activated to partially cure the gum to a non-tacky condition. Activation of the other curing agent completes the cure. The curing agents may be activated at different temperatures, or one by light and one by heat. The substrate may be paper, aluminium, polycarbonate or nylon. In Example I a polydimethylsiloxane gum is mixed with an acetone oxine blocked toluene-2, 4- diisocyanate as lower temperature active curing agent, and a bis-phenol adduct of methylene bis(4-phenyl isocyanate) as higher temperature active curing agent. This composition was dissolved in a mixture of benzene and tetrahydrofuran, and drawbar coated onto aluminium. The low temperature curing agent was then activated, and the partially cured blank used to form an imaged master. In Example III, the low temperature curing agent of Example I is replaced by methyl phenyl diazidosilane. In Example V, the silicone polymer contained 0.2 wt. % methylvinylsiloxy pendant sites, and benzoyl peroxide (lower temperature active) and di-t-butyl peroxide (higher temperature active) were used as curing agents.
GB1957575A 1974-06-27 1975-05-09 Process for preparing a printing master Expired GB1471083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48372674A 1974-06-27 1974-06-27

Publications (1)

Publication Number Publication Date
GB1471083A true GB1471083A (en) 1977-04-21

Family

ID=23921271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1957575A Expired GB1471083A (en) 1974-06-27 1975-05-09 Process for preparing a printing master

Country Status (5)

Country Link
JP (1) JPS5116105A (en)
DE (1) DE2523758A1 (en)
FR (1) FR2276176A1 (en)
GB (1) GB1471083A (en)
NL (1) NL7507729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1261975B1 (en) * 2000-03-01 2004-05-06 Wermelinger AG Method of producing a non-cylindrical component with ribs, particularly a high-voltage insulator, a thereby obtainable high-voltage insulator, and use of a silicon rubber having two curing catalysts or inhibitors, respectively

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005062075A1 (en) 2005-12-22 2007-06-28 Lanxess Deutschland Gmbh Multicomponent system containing a thermoplastic and a rubber component, e.g. for use in cylinder head seals or rollers, contains at least two peroxide cross-linkers with different 1-hour decomposition temperatures

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901151A (en) * 1973-12-27 1975-08-26 Xerox Corp Process for preparing waterless lithographic masters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1261975B1 (en) * 2000-03-01 2004-05-06 Wermelinger AG Method of producing a non-cylindrical component with ribs, particularly a high-voltage insulator, a thereby obtainable high-voltage insulator, and use of a silicon rubber having two curing catalysts or inhibitors, respectively
US6875929B2 (en) 2000-03-01 2005-04-05 Wermelinger Ag Method of producing a composite high-voltage insulator, high-voltage insulator and plastic material for use in the inventive method, and method of producing a non-cylindrical component

Also Published As

Publication number Publication date
JPS5116105A (en) 1976-02-09
FR2276176A1 (en) 1976-01-23
NL7507729A (en) 1975-12-30
DE2523758A1 (en) 1976-01-15
FR2276176B1 (en) 1979-08-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee