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公开(公告)号：DE19902982B4
公开(公告)日：2007-02-08
申请号：DE19902982
申请日：1999-01-26
Applicant: BASF AG
Inventor： SCHERZER DIETRICH , GAUS GUENTER , JACOB CHRISTOPHE , MOHR BERNHARD , LUTTER HEINZ-DIETER
Abstract: A new method for preparing foamed materials involves the reaction of: (a) isocyanates; (b) compounds reactive to isocyanates of molecular weight 500-8500; and optionally (c) chain lengthening and/or crosslinking agents of molecular weight 60-499 in the presence of: (d) a propellant; and (e) a catalyst, and optionally (f) adjuvants and/or additives. Foamed materials are prepared by reaction of (a) isocyanates with (b) compounds reactive to isocyanates of molecular weight 500-8500 and optionally (c) chain lengthening and/or crosslinking agents of molecular weight 60-499 in the presence of (d) a propellant and (e) a catalyst, and optionally (f) adjuvants and/or additives. The isocyanate (a) is 2,4- and or 2,6-toluylenediisocyanate and/or 4,4, 2,2, and/or 2,4-diphenylmethane diisocyanate, and the reaction is carried out in the presence of (e1) 0.02-0.08 wt.% triethylenediamine and 0.05-0.3 wt.% of at least one aminoalkyl and/or aminophenyl-imidazole (e2) of formulas (I) and/or (II): where: R -R = phenyl, halogen, H, 1-10C linear or branched alkyl, 1-4C alkoxy, N-mono- or 1-4C N,N-dialkylamino, N-mono- or N,N-dialkylaminoalkylene, i.e. 1-4C alkyl and 2-4C alkylene, R = R , with the exception of halogen and alkoxy; Y = H, 2-4C hydroxalkyl, or hydroxypolyoxyalkyl with 2-20 alkylene oxide units, X (catalyst) = 2-6C alkylene or phenyl, Z = H, 1-4C alkylene, phenyl, 2-4C hydroxyalkyl, or 2-20C hydroxypolyoxyalkylene, and the weigh proportions of (e1) and (e2) are based on the weight proportion of component (b)(sic). Independent claims are included for: (1) A spongy plastic based on polyurethanes, prepared as above; (2) a mixture containing (e1) triethylenediamine and (e2) at least one aminoalkyl- and/or aminophenyl-imidazole at an e1 to e2 ratio of 1.6:1 to 0.06:1.
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公开(公告)号：DE19941763A1
公开(公告)日：2001-03-08
申请号：DE19941763
申请日：1999-09-02
Applicant: BASF AG
Inventor： SCHERZER DIETRICH , GAUS GUENTER , JACOB CHRISTOPHE , MOHR BERNHARD , LUTTER HEINZ-DIETER
Abstract: 1-(3-Aminopropyl)-imidazole and 3-(dimethylamino)-propylamine are used as catalysts in the production of polyisocyanate-polyaddition products. 1-(3-Aminopropyl)-imidazole and 3-(dimethylamino)-propylamine are used as catalysts in the production of polyisocyanate-polyaddition products by reacting isocyanates with isocyanate-reactive compounds (mol. wt. 500-8500) and optionally chain-extenders and/or crosslinkers (mol. wt. 60-499) in presence of catalysts and optionally additives etc. Independent claims are also included for: (a) a process as described above for the production of polyurethane foam; (b) polyisocyanate-polyaddition products containing the above amines; (c) mixtures of the above amines.
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公开(公告)号：DE19925251A1
公开(公告)日：2000-12-07
申请号：DE19925251
申请日：1999-06-01
Applicant: BASF AG
Inventor： SCHERZER DIETRICH , GAUS GUENTER , JACOB CHRISTOPHE , MOHR BERNHARD , LUTTER HEINZ-DIETER , BRUCHMANN BERND
Abstract: Polyurethane foam preparation comprises reacting isocyanates with isocyanate reactive compounds in the presence of substituted imidazole catalyst(s) Preparation of polyurethane (PU) foams comprises reacting: (a) isocyanates; (b) isocyanate reactive compounds of mol. wt. 500-8500; and optionally (c) chain extenders and/or crosslinkers of mol. wt. 60-499; in the presence of (d) propellants; and (e) imidazole catalysts of formula (I); and optionally (f) aids and/or additives; R = 1-20C alkyl; R , R = phenyl, halogen, H, 1-4C alkoxy, N-mono or N,N-dialkylamino where the alkyl has 1-4C, , N-mono or N,N-dialkylaminoalkylene where the alkyl has 1-4C and the alkylene has 2-4C; X = 1-6C hydrocarbon or phenyl; A = H, OH or NRZ; Y = H, 2-4C hydroxyalkyl or 2-20C hydroxypolyalkyl; and Z = H, -4C alkyl, phenyl, 2-4C hydroxyalkyl or 2-20C hydroxypolyalkyl. Independent claims are included for the preparation of PU foams as above by reacting 2,4- and/or 2,6-toluylene diisocyanate and/or 4,4'-, 2,2'- and/or 2,4'-diphenylmethane diisocyanate in the presence of 0.02-0.08 wt.% triethylene diamine and 0.05-0.3 wt.% of at least one aminoalkyl and/or an aminophenyl imidazole of formulae (I) or (II) as catalyst and also the use of triethylene diamine and of at least one aminoalkyl and/or an aminophenyl imidazole in a wt. ratio of 1.6-0.06:1 in the preparation of PU foams. R4 = R except halogen and alkoxy; X = 2-6C hydrocarbon or phenyl; A = OH or NYZ.
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公开(公告)号：DE19902982A1
公开(公告)日：2000-07-27
申请号：DE19902982
申请日：1999-01-26
Applicant: BASF AG
Inventor： SCHERZER DIETRICH , GAUS GUENTER , JACOB CHRISTOPHE , MOHR BERNHARD , LUTTER HEINZ-DIETER
Abstract: A new method for preparing foamed materials involves the reaction of: (a) isocyanates; (b) compounds reactive to isocyanates of molecular weight 500-8500; and optionally (c) chain lengthening and/or crosslinking agents of molecular weight 60-499 in the presence of: (d) a propellant; and (e) a catalyst, and optionally (f) adjuvants and/or additives. Foamed materials are prepared by reaction of (a) isocyanates with (b) compounds reactive to isocyanates of molecular weight 500-8500 and optionally (c) chain lengthening and/or crosslinking agents of molecular weight 60-499 in the presence of (d) a propellant and (e) a catalyst, and optionally (f) adjuvants and/or additives. The isocyanate (a) is 2,4- and or 2,6-toluylenediisocyanate and/or 4,4, 2,2, and/or 2,4-diphenylmethane diisocyanate, and the reaction is carried out in the presence of (e1) 0.02-0.08 wt.% triethylenediamine and 0.05-0.3 wt.% of at least one aminoalkyl and/or aminophenyl-imidazole (e2) of formulas (I) and/or (II): where: R -R = phenyl, halogen, H, 1-10C linear or branched alkyl, 1-4C alkoxy, N-mono- or 1-4C N,N-dialkylamino, N-mono- or N,N-dialkylaminoalkylene, i.e. 1-4C alkyl and 2-4C alkylene, R = R , with the exception of halogen and alkoxy; Y = H, 2-4C hydroxalkyl, or hydroxypolyoxyalkyl with 2-20 alkylene oxide units, X (catalyst) = 2-6C alkylene or phenyl, Z = H, 1-4C alkylene, phenyl, 2-4C hydroxyalkyl, or 2-20C hydroxypolyoxyalkylene, and the weigh proportions of (e1) and (e2) are based on the weight proportion of component (b)(sic). Independent claims are included for: (1) A spongy plastic based on polyurethanes, prepared as above; (2) a mixture containing (e1) triethylenediamine and (e2) at least one aminoalkyl- and/or aminophenyl-imidazole at an e1 to e2 ratio of 1.6:1 to 0.06:1.
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