C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/109, 252/114
C08G 18/24 (2006.01) C08F 4/72 (2006.01) C08G 18/16 (2006.01) C08G 18/72 (2006.01)
Patent
CA 1222740
Mo-2571 LeA 22,465 POLYISOCYANATE COMPOSITIONS CONTAINING REVERSIBLY BLOCKED CATALYSTS, A PROCESS FOR THEIR PRODUCTION, THEIR USE IN THE PRODUCTION OF POLYURETHANE PLASTICS AND ADDITION PRODUCTS OF SULFONYL ISOCYANATES WITH CATALYSTS HAVING TIN(II)- OR TIN(IV)-CARBOXYLATE STRUCTURE ABSTRACT OF THE DISCLOSURE The present invention relates to polyiso- cyanate compositions containing reversibly blocked catalysts or the isocyanate addition reaction, characterized in that they contain a) at least one organic polyisocyanate, b) at least one addition product dissolved or dispersed in the polyisocyanate compositions, of a sulfonyl isocyanate with a tertiary amine and/or with a catalyst having a tin(II)- or tin(IV)-carboxylate structure as the reversibly blocked catalyst. The present invention also relates to a process for producing these polyisocyanate compositions and to the use of new polyisocyanate compositions as reactants for compounds containing isocyanate-reactive groups for the production of isocyanate addition products such as polyurethane plastics using a one-component or two-component principle. The present invention finally relates to the latent polyurethane catalysts prepared from a sulfonyl isocyanate and a tin(II)- or tin(IV)-carboxylate. Mo-2571
458446
Avar Geza
Dollhausen Manfred
Freitag Hans-Albrecht
Hombach Rudolf
Muller Hanns P.
Aktiengesellschaft Bayer
Marcoux & Sher Swabey Mitchell Houle
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