GB1471083A - Process for preparing a printing master - Google Patents
Process for preparing a printing masterInfo
- 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
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.
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)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3901151A (en) * | 1973-12-27 | 1975-08-26 | Xerox Corp | Process for preparing waterless lithographic masters |
-
1975
- 1975-05-09 GB GB1957575A patent/GB1471083A/en not_active Expired
- 1975-05-28 DE DE19752523758 patent/DE2523758A1/en active Pending
- 1975-06-20 JP JP7541975A patent/JPS5116105A/en active Pending
- 1975-06-27 FR FR7520388A patent/FR2276176A1/en active Granted
- 1975-06-27 NL NL7507729A patent/NL7507729A/en not_active Application Discontinuation
Cited By (2)
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 |
---|---|
DE2523758A1 (en) | 1976-01-15 |
NL7507729A (en) | 1975-12-30 |
JPS5116105A (en) | 1976-02-09 |
FR2276176B1 (en) | 1979-08-24 |
FR2276176A1 (en) | 1976-01-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |