PROCESS FOR THE PREPARATION OF POLYURETHANE- POLYISOCYANURATE FOAMS

    公开(公告)号:CA1185749A

    公开(公告)日:1985-04-16

    申请号:CA418407

    申请日:1982-12-22

    Applicant: BASF AG

    Abstract: PROCESS FOR THE PREPARATION OF POLYURETHANE-POLYISOCYANURATE FOAMS The invention describes a process for harmonizing the reaction rates for the formation of urethane and isocyanurate groups during the preparation of polyurethanepolyisocyanurate foams by reacting organic polyisocyanates with polyols in the presence of blowing agents and salts of amines having the formula as catalysts, wherein R stands for an hydrogen atom or a straight chained or branched alkyl radical with 1 to 19 carbon atoms, and n and m are equal or different whole numbers from 2 to 10.

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