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

US5700619A · kind A · utility

Assignee

• Sun Chemical Corporation · 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: Jul 3, 1996
• Grant date: Dec 23, 1997
• Expiry date: Jul 3, 2016

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## 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.