| (19) |
 |
|
(11) |
EP 0 764 522 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
06.08.1997 Bulletin 1997/32 |
| (43) |
Date of publication A2: |
|
26.03.1997 Bulletin 1997/13 |
| (22) |
Date of filing: 20.09.1996 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FI FR GB IT LI NL PT SE |
| (30) |
Priority: |
22.09.1995 US 532912
|
| (71) |
Applicant: SUN CHEMICAL CORPORATION |
|
Fort Lee, NJ 07024 (US) |
|
| (72) |
Inventors: |
|
- Nguyen, My T.
Montclair,
New Jersey 07042 (US)
- Laksin, Mikhail
Scotch Plains,
New Jersey 07072 (US)
- Pappas, S. Peter
West Orange,
New Jersey 07052 (US)
- Shimazu, Ken-ichi
Briarcliff Manor,
New York 10510 (US)
- Hallman, Robert W.
Palisades Park,
New Jersey 07650 (US)
|
| (74) |
Representative: VOSSIUS & PARTNER |
|
Siebertstrasse 4
81675 München
81675 München (DE) |
|
| |
|
| (54) |
Compositions and solventless process for digital laser imagable lithographic printing
plate production |
(57) The invention comprises a waterless, multilayered lithographic printing plate imagable
by digitally controlled laser ablation. The plate exhibits superior impression life
and is produced by solventless methods to yield low VOC. The plate contains a first
solid substrate layer; a second infra-red light absorbing polymeric layer containing
crosslinked functionality; and a polysiloxane top layer containing crosslinked functionality.
At least the second layer and top layer contain interlayer crosslinked bonds. Optionally,
the plate may contain a prime polymeric layer interposed between the first and second
layer.