Asahi Kasei Kogyo Kabushiki Kaisha

Asahi Kasei Kabushiki Kaisha

Yuichi Arito

Kazuhiko Sho

Kenji Takasa

A phenolic foam having a density of from 10 kg/m to 100 kg/m and comprising a phenolic resin base part and a cellular part most of which is made up of a large number of fine cells, wherein the fine cells contain a hydrocarbon and have an average cell diameter of 5 &mgr;m to 200 &mgr;m, and the cell walls of at least most of the fine cells are formed of a smooth surface of the phenolic resin base. While the blowing agent is a hydrocarbon, the foam has a thermal conductivity comparable to that of a conventional foam made with a flon blowing agent, undergoes no change in thermal conductivity with time, exhibits excellent mechanical strength such as compressive strength, and has reduced brittleness.

Phenolic foam

A novel styrene type resin having excellent strength which comprises

Growing community of inventors

Saitama, Japan

Yuichi Arito