Polyurethane froth foams.

摘要

A process for the manufacture of a polyurethane froth foam is provided. The process, which comprises contacting a polyurethane forming formulation with an inert gas under conditions which produce a froth, uses a formulation which contains a chain extender which is an alkoxylated bisphenol A. Optionally a second chain extender which is a linear glycol can also be used. The polyurethane froth foams produced are thermoformable whilst exhibiting good shape retention at ambient temperature.