C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 265/14 (2006.01) C07C 263/18 (2006.01) C07D 251/34 (2006.01) C08G 18/73 (2006.01) C08G 18/75 (2006.01) C08G 18/79 (2006.01) C08K 5/00 (2006.01)
Patent
CA 2130684
Abstract of the Disclosure (Cyclo)aliphatic polyisocyanate compositions which have a long shelf life, are obtainable by phosgene-free methods, preferably by thermal cleavage of (cyclo)aliphatic polycarbamates, and, for stabilization, contain at least one primary stabilizer (2a), pre- ferably a sterically hindered phenol and/or an aromatic amine, or at least one secondary stabilizer (2b), preferably an organic phosphite and/or a thioether, or at least one acidic stabilizer (2c), preferably a carboxylic acid, an acyl chloride, an inor- ganic acid, an inorganic acid chloride and/or a diester of phos- phoric acid, or a stabilizer system comprising at least 2 of the stabilizers (2a) to (2c), a process for the preparation of the (cyclo)aliphatic polyisocyanate compositions and their preferred use for the preparation of isocyanurate-containing polyisocya- nates.
Agar David
Laqua Gerhard
Merger Franz
Siebenhaar Ursula
Witzel Tom
Agar David
Basf Aktiengesellschaft
Laqua Gerhard
Merger Franz
Robic
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