公开(公告)号：PT668271E

公开(公告)日：2002-07-31

申请号：PT95101740

申请日：1995-02-09

Applicant: BASF AG

Inventor： KONRAD STOLZENBERG DR ,  BERND BRUCHMANN DR ,  OTTERBACH ANDREAS ,  FRANZ MERGER DR ,  GERHARD LAQUA DR ,  TOM WITZEL DR ,  BRANDT PETER DR ,  WOLFF STEFAN DR ,  BECKER RAINER DR

IPC: B01J20060101 ,  B01J31/02 ,  C07B61/00 ,  C07D20060101 ,  C07D251/34 ,  C08G20060101 ,  C08G18/02 ,  C08G18/18 ,  C08G18/79 ,  C09D20060101

Abstract: The prodn. of isocyanurate gp.-contg. polyisocyanates (A) comprises partial trimerisation of (cyclo)aliphatic di-isocyanates (B) in the presence of tetra-alkylammonium alkyl carbonates of formula (I) and/or quat. ammonio-alkyl carbonate betaines of formula (II) as catalyst(s), followed by deactivation of the catalyst on reaching the required deg. of trimerisation. In formulae, R , R , R = 1-20 C alkyl, 5-6C cycloalkyl, 7-10C aralkyl or Ph; or R + R can form a 5- or 6-membered cycloalkyl gp., or R + R + N can form a 5- or 6-membered ring with another N or O as bridging gp. or R + R + R + N can form a multi-membered ring with one or more extra N and/or O bridges; R = 1-4C alkyl; R = 2-20 C alkylene, 5-6C cycloalkylene, 7-10C aralkylene or phenylene; or R + R = alkylene gp. which forms a 5- to 7-membered ring with a N bridge. Pref. trimerisation catalysts are carbonates of formula (III), (IV), or (V), or betaine carbonates of formula (V), (VII) or (VIII). Trimerisation is carried out at 30-150 degrees C and the catalyst is deactivated with dibutyl phosphate (DBP); unreacted monomeric di-isocyanate is then removed. Pref. di-isocyanates are (cyclo)aliphatic di-isocyanates obtd. by a phosgene-free process, esp. by thermal cleavage of (cyclo)aliphatic dicarbamate esters; esp. pref. di-isocyanates obtd. by this method are 1,6-hexamethylenedi-isocyanate (HDI), 2-butyl-2-ethyl-pentamethylene-1,5-di-isocyanate and 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethylcyclohexane (IPDI).

公开(公告)号：PT861232E

公开(公告)日：2002-03-28

申请号：PT96937292

申请日：1996-10-30

Applicant: BASF AG

Inventor： OTTERBACH ANDREAS ,  HANS VOLKMAR SCHWARZ DR ,  GERHARD LAQUA DR ,  SCHONER ULRICH

IPC: B01J31/04 ,  B01J31/12 ,  B01J31/20 ,  C07B61/00 ,  C07C263/04 ,  C07C265/14 ,  C07C269/04 ,  C07C271/08 ,  C07C271/20

Abstract: Organic diurethanes and/or polyurethanes are prepared by reacting organic diamines and/or polyamines (a) with urea and/or alkyl cabamates (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alkoxides, zirconium acetate or zirconium acetylacetonate, as catalyst (d). They can be used for preparing diisocyanates and/or polyisocyanates by thermal dissociation.