Production of moldings from unsaturated polyester resins

US4425287A · kind A · utility

Assignee

• BASF SE

Inventors

• Anton Hesse · Weinheim, DE
• Dankmar Scholz · Bischofswerda, DE
• Walter Nicolaus · Ludwigshafen, DE

Key dates

• Filing date: Feb 3, 1983
• Grant date: Jan 10, 1984
• Expiry date: Feb 3, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/913
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for the production of moldings from unsaturated polyester resins wherein a mixture is first prepared from PA0 1. an unsaturated polyester, PA0 2. a copolymerizable vinyl compound, PA0 3. an inhibitor, PA0 4. a photoinitiator, PA0 5. a thickener, preferably MgO, PA0 6. a pulverulent auxiliary which transmits ultraviolet light and/or PA0 7. a fibrous reinforcing material and PA0 8. further conventional additives. This mixture is thickened, where appropriate after coating onto a sheet-like carrier, to form a semi-finished product, which is then finally shaped, and cured by UV irradiation after which it may or may not be heat-treated.