Bisesters of unsaturated carboxylic acids, their production and their use in curable mixtures

US5011972A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Helmut-Martin Meier · Ratingen, DE
• Harald Pielartzik · Pittsburgh, US
• Leo Morbitzer
• Hanns P. Muller · Leverkusen, DE
• Dietrich Braun · Darmstadt, DE

Key dates

• Filing date: Aug 28, 1989
• Grant date: Apr 30, 1991
• Expiry date: Aug 28, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The new bisesters of unsaturated carboxylic acids corresponding to the following formula ##STR1## may be used in curable polyester resin mixtures which may in turn be used for the production of moldings. The curable mixtures obtainable from the new bisesters of unsaturated carboxylic acids show a higher glass transition temperature than normal polyester resins and, despite a higher crosslink density, show broader-mesh crosslinking.