Patent ID: 9296143
Filing Date: 2016-03-29
CPC Classification: B29C,B29K,B29L

Claim Text:
1. A process of manufacturing a curved member having a high-grade design surface, comprising the steps of: (1) preparing a sheet having a high-grade design surface and a thickness of 3-6 mm by injection compression molding a resin material containing 90-100 wt % of a polycarbonate resin (step (1)); (2) preheating the sheet at a temperature of (Tg+15)° C. to (Tg+35)° C. (Tg(° C.) is the glass transition temperature of the resin material) to soften it (step (2)); and (3) applying pressure to the softened sheet to curve the high-grade design surface (step (3)).