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公开(公告)号:DE59405570D1
公开(公告)日:1998-05-07
申请号:DE59405570
申请日:1994-09-03
Applicant: BASF AG
Inventor: BRUCHMANN BERND DR , WOLFF STEFAN DR , LAQUA GERHARD DR
IPC: C07D251/34 , C07D229/00 , C08G18/02 , C08G18/79
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公开(公告)号:DE4405055A1
公开(公告)日:1995-08-24
申请号:DE4405055
申请日:1994-02-17
Applicant: BASF AG
Inventor: BRANDT PETER DR , BRUCHMANN BERND DR , LAQUA GERHARD DR , MERGER FRANZ DR , OTTERBACH ANDREAS DR , STIEFENHOEFER KONRAD , WITZEL TOM DR , WOLFF STEFAN DR , BECKER RAINER DR
IPC: B01J20060101 , B01J31/02 , C07B61/00 , C07D20060101 , C07D251/34 , C08G20060101 , C08G18/02 , C08G18/18 , C08G18/79 , C09D20060101 , C07D211/44 , C07D295/03 , C07D487/08 , C09D175/04 , B01J27/232 , B01J27/236 , B01J27/24
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).
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公开(公告)号:DE19541384A1
公开(公告)日:1997-05-15
申请号:DE19541384
申请日:1995-11-07
Applicant: BASF AG
Inventor: LAQUA GERHARD DR , SCHONER ULRICH , OTTERBACH ANDREAS DR , SCHWARZ HANS VOLKMAR DR
IPC: B01J31/04 , B01J31/12 , B01J31/20 , C07B61/00 , C07C263/04 , C07C265/14 , C07C269/04 , C07C271/08 , C07C271/20 , C07C271/24 , C07C271/06
Abstract: The invention concerns a method of producing organic di- and/or polyurethanes by reacting organic di- and/or polyamines (a) with urea and/or carbamic acid alkyl esters (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alcoholates, zirconium acetate or zirconium actylacetonate, as a catalyst (d). The invention also concerns the use of such compounds in the production of di- and/or polyisocyanates by thermal decomposition.
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公开(公告)号:DE59401196D1
公开(公告)日:1997-01-16
申请号:DE59401196
申请日:1994-09-03
Applicant: BASF AG
Inventor: LAQUA GERHARD DR , BRUCHMANN BERND DR , WOLFF STEFAN DR
IPC: C07C263/04 , C07C263/18 , C07C265/10 , C07C265/14 , C08G18/70 , C08G18/72 , C08G18/73 , C08G18/75
Abstract: The invention relates to stable (cyclo)aliphatic polyisocyanate compositions which can be obtained by phosgene-free processes, preferably by thermal cleavage of (cyclo)aliphatic polycarbonates and which comprise carbon dioxide, expediently in an amount of up to 0.3% by weight, for stabilisation purposes, and to a process for their preparation.
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公开(公告)号:AT145895T
公开(公告)日:1996-12-15
申请号:AT94113853
申请日:1994-09-03
Applicant: BASF AG
Inventor: LAQUA GERHARD DR , BRUCHMANN BERND DR , WOLFF STEFAN DR
IPC: C07C263/04 , C07C263/18 , C07C265/10 , C07C265/14 , C08G18/70 , C08G18/72 , C08G18/73 , C08G18/75
Abstract: The invention relates to stable (cyclo)aliphatic polyisocyanate compositions which can be obtained by phosgene-free processes, preferably by thermal cleavage of (cyclo)aliphatic polycarbonates and which comprise carbon dioxide, expediently in an amount of up to 0.3% by weight, for stabilisation purposes, and to a process for their preparation.
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公开(公告)号:ES2114102T3
公开(公告)日:1998-05-16
申请号:ES94113851
申请日:1994-09-03
Applicant: BASF AG
Inventor: BRUCHMANN BERND DR , WOLFF STEFAN DR , LAQUA GERHARD DR
IPC: C07D251/34 , C07D229/00 , C08G18/02 , C08G18/79
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公开(公告)号:DK0645372T3
公开(公告)日:1996-12-23
申请号:DK94113853
申请日:1994-09-03
Applicant: BASF AG
Inventor: BRUCHMANN BERND DR , WOLFF STEFAN DR , LAQUA GERHARD DR
IPC: C07C263/04 , C07C263/18 , C07C265/10 , C07C265/14 , C08G18/70 , C08G18/72 , C08G18/73 , C08G18/75
Abstract: The invention relates to stable (cyclo)aliphatic polyisocyanate compositions which can be obtained by phosgene-free processes, preferably by thermal cleavage of (cyclo)aliphatic polycarbonates and which comprise carbon dioxide, expediently in an amount of up to 0.3% by weight, for stabilisation purposes, and to a process for their preparation.
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公开(公告)号:ES2089876T3
公开(公告)日:1996-10-01
申请号:ES94113844
申请日:1994-09-03
Applicant: BASF AG
Inventor: LAQUA GERHARD DR , MERGER FRANZ DR , WITZEL TOM DR , SIEBENHAAR URSULA DR , AGAR DAVID DR
IPC: C07C263/18 , C07C265/14 , C08G18/73 , C08G18/75 , C08G18/79 , C08K5/00
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公开(公告)号:DE59400433D1
公开(公告)日:1996-08-22
申请号:DE59400433
申请日:1994-09-03
Applicant: BASF AG
Inventor: LAQUA GERHARD DR , MERGER FRANZ DR , WITZEL TOM DR , SIEBENHAAR URSULA DR , AGAR DAVID DR
IPC: C07C263/18 , C07C265/14 , C08G18/73 , C08G18/75 , C08G18/79 , C08K5/00
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公开(公告)号:DE4407487A1
公开(公告)日:1995-09-14
申请号:DE4407487
申请日:1994-03-07
Applicant: BASF AG
Inventor: MUNDINGER KLAUS DR , LAQUA GERHARD DR , WITZEL TOM DR , MERGER FRANZ DR
IPC: C07C253/10 , C07C255/46 , C07C253/00 , C07B43/08
Abstract: The novel feature in the prepn. of 3-cyano-3,5,5-trimethylcyclohexanone (I) by quat. ammonium-catalysed reaction of isophorone with HCN at 80-100 deg.C/0.5-20 bar is that the ammonium catalyst is a salt of formula (II). R -R = 1-8C alkyl, 5-8C cycloalkyl, aryl, 7-18C aralkyl or 2-18C hydroxyalkyl; and X = HCO3 or -OC(O)OR , with the proviso that R = 1-8C alkyl when X = -OC(O)OR .
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