Bowls comprising acrylic plastics filled with alumina trihydrate, and processes for making same

摘要: Processes for producing durable three-dimensional bowls such as water basins comprising acrylic plastics heavily filled with alumina trihydrate, some embodiments including colorants and visible particles those used simulating stone granite. A preferred process manufacturing the of material includes defining a flat rigid blank in approximate top outline shape bowl to be formed, e.g., being oval an circular bowl. The is provided smooth side or sides which will concave finished use. heated point softening uniform temperature throughout, located within molding die matched having female cavity desired shape. indexed die, but left generally unrestrained so that edges thereof are un-clamped, thereby allowing moved inward help minimize tension loads during forming. Force applied blank, from male portion compress into cooled, removed edge trimmed, drain hole surrounding bevel applied, as-needed re-facing on exposed side(s).