Plastics moldings

US6525122B1 · kind B1 · utility

Assignee

• SCHOCK GMBH · DE

Inventors

• Friedrich Schock · Schorndorf, DE
• Karl Schock · Schorndorf, DE
• Gunter Hieber · Schorndorf, DE
• Daniel Knospe · Schorndorf, DE
• Horst Schlier · Schorndorf, DE

Key dates

• Filing date: Mar 18, 1999
• Grant date: Feb 25, 2003
• Expiry date: Mar 18, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/769
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

In order to achieve, in the case of a plastics moulding, in particular a moulded part such as e.g. a kitchen sink, a washbasin or a work-top or similar, comprising a polymer phase formed from a curable reaction mass and,: embedded therein, a particulate filling material which contains a resin material filled with an inorganic filler, in addition to a good resistance to water whitening a high resistance to crack formation in the hot-cold cycle, it is proposed that the polymer phase contains up to 5 wt %, referred to the plastics moulding, of inorganic additive particles, that the particulate filling material is swellable in the curable reaction mass, that the filled resin material comprises a content of inorganic filler in the range from 50 to 80 wt % with an average particle size of approx. 5 to approx. 100 &mgr;m, and that the filling material has a particle size in the range from 60 to 8000 &mgr;m and is contained in the plastics moulding in a proportion of approx. 30 to approx. 75 wt %.