Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Reexamination Certificate
2005-06-07
2005-06-07
Hamilton, Cynthia (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
C430S944000, C430S270100, C430S271100, C430S273100
Reexamination Certificate
active
06902865
ABSTRACT:
Negative thermosensitive lithographic printing plates developable with a non-alkaline aqueous developer and method of developing such plates. The plate comprises on a substrate a thermosensitive layer comprising an ethylenically unsaturated monomer, a free radical initiator, and an infrared absorbing dye. The plate can be imagewise exposed with an infrared laser to cause hardening in the exposed areas and then developed with a non-alkaline aqueous developer to remove the non-exposed areas. The non-alkaline aqueous developer can be water or an aqueous solution comprising at least 60% of water and having a pH of 2.0 to 10.0.
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machine translation from PAJ (Publication No. 2001-175006 and Engllish Abstract from Patent Abstracts of Japan of Fuji Photo.
DOWANOL Eph, DOW, Glycol Ether Products, Global Product Information, Copyright 2004, three pages, obtained from the world wide web.
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