High-toughness materials based on unsaturated polyesters

US10273330B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Reinhard Lorenz · Schifferstadt, DE
• Monika Bauer · Seligenstadt, DE
• Sebastian Steffen · Berlin, DE

Key dates

• Filing date: Jun 19, 2013
• Grant date: Apr 30, 2019
• Expiry date: Aug 24, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to unsaturated carboxylic acid ester obtained from or through the use of a source material defined below in formula (I): A(0.9-1.2)(B+C)(1.0)  (I) wherein the figures set in parentheses indicate the molar proportion of source material A to the sum of source materials B and C, and wherein the following meanings apply: A: unsaturated dicarboxylic acid, B: a hard diol segment, C: a soft diol segment selected from among compounds having a continuous chain between two hydroxyl groups, which have a length of 5 to 30 atoms, wherein the molar ratio of B:C is between 5:95 and 95:5. Furthermore, it relates to unsaturated polyester resin comprising said unsaturated carboxylic acid ester as defined above and a reactive diluents as well as molded articles, coatings, and surface textiles coated, saturated, laminated, and impregnated from or with a thermoset, which was obtained by hardening said unsaturated polyester resin.