Natural fiber containing molding compounds based on unsaturated polyester resins, and molded bodies obtained from the molding compounds

US5231121A · kind A · utility

Assignee

• Huls Aktiengesellschaft · DE

Inventors

• Horst Krämer · Ginsheim-Gustavsburg, DE
• Johannes Stawowy · Marl, DE

Key dates

• Filing date: Jan 29, 1992
• Grant date: Jul 27, 1993
• Expiry date: Jan 29, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2367/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Molding compositions based on unsaturated polyester (UP) resins and containing natural fibers are prepared from which molded parts can be produced by hot pressing. The molded parts have a residual styrene content <0.1 wt. %. The UP resins are comprised of a customary UP and a mixture of styrene and di(meth)acrylic acid ester(s).