Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates

US5985996A · kind A · utility

Assignee

• Kodak Polychrome Graphics Company Ltd. · US

Inventors

• Harald Baumann · Tuttlingen, DE
• Udo Dwars · Herzberg, DE
• Celin Savariar-Hauck · Badenhausen, DE
• Hans-Joachim Timpe · Biberach an der Riß, DE

Key dates

• Filing date: Aug 22, 1997
• Grant date: Nov 16, 1999
• Expiry date: Aug 22, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/0215
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a binder containing the units A, B, C, D and E, wherein A is present in an amount of 10 to 60 mole % and is of the formula ##STR1## B is present in an amount of 1 to 30 mole % and is of the formula ##STR2## C is present in an amount of 5 to 60 mole % and is of the formula ##STR3## D is present in an amount of 0 to 60 mole % and is of the formula ##STR4## and E is present in an amount of 1 to 40 mole % and is of the formula ##STR5## wherein X is an aliphatic, aromatic or araliphatic spacer group, PA1 R.sup.1 is hydrogen or an aliphatic, aromatic or araliphatic group, PA1 R.sup.2, R.sup.3 and R.sup.4 are hydrogen or alkyl groups with carbon numbers of from 1 to 18 and PA1 Y is a saturated or unsaturated chain- or ring-shaped spacer group, and photosensitive compositions containing this binder.