Process for preparing solutions of radiation-sensitive, free-radically polymerizable organic compounds

US8648212B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Verena Weiskopf · Guntersblum, DE
• Franz Niklaus Windlin · Heidelberg, DE
• Harald Winsel · Birkenheide, DE
• Markus Ruckpaul · Heidelberg, DE
• Dirk Wulff · Schifferstadt, DE
• Uwe Duesterwald · Queidersbach, DE
• Ulrike Licht · Mannheim, DE

Key dates

• Filing date: Mar 30, 2010
• Grant date: Feb 11, 2014
• Expiry date: Jul 3, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2301/304
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A description is given of a process for preparing solutions of radiation-sensitive, free-radically polymerizable organic compounds, where a first starting compound, which has an acid halide group, and a second starting compound, which has an alcoholic hydroxyl group, are esterified with one another in a solvent or in a solvent mixture. The solvent comprises one or more ketones having a boiling point of below 150° C. under atmospheric pressure (1 bar), or the solvent mixture is composed to an extent of at least 50% by weight of said ketones. One of the two starting compounds has at least one radiation-sensitive group and the other of the two starting compounds has at least one ethylenically unsaturated, free-radically polymerizable group. A description is also given of corresponding solutions of radiation-sensitive, free-radically polymerizable organic compounds and of their use for preparing radiation-crosslinkable, free-radically copolymerized copolymers, more particularly for hotmelt pressure-sensitive adhesives or aqueous polymer dispersions.