EXTRUDED, OPEN-CELL FOAM AND PROCESS FOR MAKING

摘要

Disclosed is an extruded, open-cell alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of 30 percent or more. The foam further has in minor dimension and cross section of greater than 6.5 millimeters. The foams has a high heat distortion temperature, and is particularly useful in roofing applications. Further disclosed is a process for making the open-cell foam.