PRODUCTION OF METHACRYLIC RESIN CAST PLATE

摘要

PURPOSE:To provide a method for producing a methacrylic resin cast plate in which polymerization time is shortened and energy saving is achieved without deteriorating various physical properties of the methacrylic resin. CONSTITUTION:One or more kinds of peroxide-based polymerization initiators are added to a methacrylic syrup having 100-1000P viscosity at 20 deg.C at 30-45% rate of polymerization and the resultant methacrylic syrup is quick-heated to 90-100 deg.C temperature and then polymerized in an adiabatic atmosphere utilizing the heat generation of polymerization. The polymerization time can remarkably be shortened and high-speed polymerization can be carried out. Energy saving can simultaneously be achieved.