INSPECTING DEVICE FOR OUTSIDE SURFACE OF PIPING

摘要

PURPOSE:To obtain an beautiful onyx looking appearance by adding a hardening agent to a mixture of a composition as a copolymerizing syrup of a specific monomer whose refractive index is specified in the solidified form at the room temperature and aluminum hydroxide at a specified ratio to be injected into a mold to solidify. CONSTITUTION:A hardening agent is added to a mixture of 80-15wt% of a compolimerizing syrup comprising two or more kinds of monomers selected from among cyclohexyl methaacrylate, methyl methaacrylate, 2-ethylhexylacrylate and styrene in such a manner that the refractive index will be 1.51-1.55 in the solidified form at the room temperature and 20-85wt% of aluminum hydroxide containing no organic substance with the average partical size of 3-50 micron and injected into a mold to solidify integrally. The solidified matter provides a hard and beautiful onyx-looking product which appears transparent with a flame resistance and pollution resistance.