Sulfonamido substituted acetal polymers and use thereof in photo-sensitive compositions and lithographic printing plates

US5698360A · kind A · utility

Assignee

• Sun Chemical Corporation · US

Inventors

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

Key dates

• Filing date: Jul 10, 1996
• Grant date: Dec 16, 1997
• Expiry date: Jul 10, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/033
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The present invention relates to binders and photosensitive compositions comprising said binders. The binder comprises units A, B, C and D, wherein A is present in an amount of 0.5 to 15 wt. % and is of the formula ##STR1## B is present in an amount of 10 to 35 wt. % and is of the formula ##STR2## C is present in an amount of 10 to 50 wt. % and is of the formula ##STR3## wherein R.sup.1 is methyl, ethyl, propyl or isopropyl, and D is present in an amount of 25 to 70 wt. % and is of the formula ##STR4## wherein n is an integer of from 1 to 3 and R.sup.2, R.sup.3 are hydrogen or methyl and R.sup.4 is alkyl, aralkyl or aryl.