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    11.
    发明专利
    未知

    公开(公告)号：NO20001174A

    公开(公告)日：2000-03-07

    申请号：NO20001174

    申请日：2000-03-07

    Applicant: BASF AG

    Inventor： BROECKEL ULRICH ,  KAESLER BRUNO ,  GAUS GUENTER ,  MEYER JOACHIM

    IPC: A23K30/00 ,  A23K30/15 ,  A23L3/358 ,  C07C51/41 ,  C14C1/02 ,  A23K3/03 ,  A23L3/3508 ,  A23B4/12 ,  A23B4/023

    CPC classification number: C14C1/02 ,  A23K30/00 ,  A23K30/15 ,  A23L3/358 ,  C07C51/41 ,  Y02A40/945

    Abstract: The invention relates to impregnated salts, containing at least one salt of one or several organic carboxylic acids in which 0.5 to 30 wt. % of at least one organic carboxylic acid has been incorporated in relation to the carboxylic acid salt. The invention also relates to preservatives containing an impregnated salt and optionally, at least one carrier substance and/or formulation auxiliary agents. Said preservatives can be covered with a covering agent and/or a powdering agent. Finally, the invention relates to a method for producing the impregnated salts and the preservatives, and to the use of said salts and preservatives for treating foodstuffs and animal food, and for silage or for treating leather.

    Polyurethane foam preparation comprises reacting isocyanates with isocyanate reactive compounds in the presence of substituted imidazole catalyst(s)
    19.
    发明专利
    Polyurethane foam preparation comprises reacting isocyanates with isocyanate reactive compounds in the presence of substituted imidazole catalyst(s) 未知

    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

    IPC: C08G18/20 ,  C08G18/28 ,  C08G18/16 ,  C08G18/18 ,  C08L75/04

    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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