Preface Pentane as blowing agent in PUR foam: in polyurethane foaming, the main function of foaming agent is to generate gas and form fine bubbles evenly distributed in polyurethane. The blowing agent itself does not participate in the chemical reaction between the polyisocyanate and the combined polyether. The foaming process using freon (such as R11 … Continue reading Pentane as Blowing Agent in PUR foam and PU Market in China