Process for the preparation of a polyisocyanurate foam modified with urethane or polyurethane (semi -) cell ru00ecgido open.Polyisocyanurate foam modified with urethane or polyurethane (semi -) ru00ecgido cell isolation panel open, evacuated, and the composition of poliisolianato

摘要

Process for the preparation of a polyisocyanurate foam modified with urethane or polyurethane (semi -) cell ru00ecgido open.Polyisocyanurate foam modified with urethane or polyurethane (semi -) ru00ecgido cell isolation panel open, evacuated, and.The composition of poliisocianato "process for the preparation of polyisocyanurate foams modified with urethane or polyurethane rigid open cell by reaction of a reactive composition, the acidThe act polifuncional with a composition of poliisocianato, which comprises a prepolymer NCO value of 21 - 30%, on the basis of a polyol containing oxyethylene high molecular weight.