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    METHOD FOR PURIFYING CREATINE
    11.
    发明专利
    METHOD FOR PURIFYING CREATINE 失效

    公开(公告)号：JP2001181254A

    公开(公告)日：2001-07-03

    申请号：JP2000387369

    申请日：2000-12-20

    Applicant: BASF AG

    Inventor： KESSEL KNUT ,  SCHERR GUENTER DR ,  BOGENSTAETTER THOMAS DR ,  ORSTEN STEFAN ,  FRANKE DIRK

    IPC: C07C277/06 ,  C07C277/08 ,  C07C279/14

    Abstract: PROBLEM TO BE SOLVED: To provide a method for providing creatine having purity as high as possible in a simple way. SOLUTION: A method for purifying creatine is to introduce creatine to be purified and not containing water of crystallization into a saturated aqueous solution of creatine monohydrate in such a way that the creatine not containing water of crystallization is dissolved under a hydrated condition, to precipitate the crystal of creatine monohydrate from the aqueous solution and to separate the above crystal from the aqueous solution.

    PRODUCTION OF SUBSTITUTED GUANIDINE DERIVATIVE
    12.
    发明专利
    PRODUCTION OF SUBSTITUTED GUANIDINE DERIVATIVE 失效

    公开(公告)号：JPH11209334A

    公开(公告)日：1999-08-03

    申请号：JP31219598

    申请日：1998-11-02

    Applicant: BASF AG

    Inventor： GREINDL THOMAS DR ,  SCHERR GUENTER DR ,  SCHNEIDER ROLF ,  MUNDINGER KLAUS DR

    IPC: C07C277/02 ,  C07C273/18 ,  C07C275/70 ,  C07C277/08 ,  C07C279/04 ,  C07C279/14 ,  C07C303/22 ,  C07C303/30 ,  C07C309/15 ,  C07C309/69 ,  C07C311/47 ,  C08G65/333 ,  C08G73/02

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject high-purity compound simply, economically in a high yield from readily obtainable starting substances, by reacting calcium cyanamide with an alcohol and reacting the obtained isourea derivative with a primary or a secondary amine. SOLUTION: Calcium cyanamide is reacted with an alcohol of the formula, R -OH (R is a 1-20C alkyl) preferably in the presence of an inorganic acid at 0-25 deg.C to give an isourea derivative of formula I. Then, the compound of formula I is reacted with a primary or a secondary amine of formula II (R is H, a 1-20C alkyl or the like; R is a 1-20C alkyl, a 2-20C alkenyl or the like) preferably at 20-40 deg.C at pH 9-10 to give the objective compound of formula III. Preferably calcium cyanamide is economically used in the form of industrial lime nitrogen containing 30-95 wt.% of calcium cyanamide. Sarcosine sodium or potassium salt is preferable as the compound of formula II.

    Water-soluble condensation products for use in paper production
    14.
    发明专利
    Water-soluble condensation products for use in paper production 未知

    公开(公告)号：DE19607641A1

    公开(公告)日：1997-09-04

    申请号：DE19607641

    申请日：1996-02-29

    Applicant: BASF AG

    Inventor： DYLLICK-BRENZINGER RAINER DR ,  STEUERLE ULRICH DR ,  REUTHER WOLFGANG DR ,  SCHERR GUENTER DR ,  MEIXNER HUBERT DR

    IPC: C08G71/00 ,  C08G73/02 ,  D21H17/54 ,  D21H21/10 ,  C08G85/00 ,  C08G69/26 ,  C08G69/48 ,  C08G81/00

    Abstract: Water-soluble condensation products (I) with a viscosity of at least 100 mPa.s in 20 wt% aqueous solution at 20 deg C, obtained by reacting (a) polyalkylene-polyamines, polyamido- amines and/or ethyleneimine-grafted polyamido-amines with (b) at least bifunctional halogen-free crosslinkers selected from (b1) ethylene carbonate, propylene carbonate and/or urea, (b2) mono- unsaturated carboxylic acids and their esters, amides and anhydrides, or at least dibasic saturated mono- or poly- carboxylic acids and derivatives as above, (b3) reaction products of polyether-diamines, alkylenediamines, polyalkylene-polyamines, alkylene glycols and/or polyalkylene glycols with mono- unsaturated carboxylic acids or derivatives thereof as above, in which the product contains at least two ethylenic double bonds or carboxylic acid, amide or ester functional groups and/or (b4) reaction products of dicarboxylic acid esters with ethyleneimine containing at least two aziridino groups. Also claimed is t he above process for the production of (I).

    Fire resistant plastic materials for film for high elongation
    16.
    发明专利
    Fire resistant plastic materials for film for high elongation 未知

    公开(公告)号：DE4444713A1

    公开(公告)日：1996-06-20

    申请号：DE4444713

    申请日：1994-12-15

    Applicant: BASF AG

    Inventor： MARCZINKE BERND LOTHAR DR ,  MUELLER PATRIK DR ,  KOESSLER LUDWIG ,  SCHERR GUENTER DR ,  BROSIUS SIBYLLE DR ,  GUENTHER ERHARD DR ,  HOFMANN JUERGEN

    IPC: C08K5/3492 ,  C08L23/10 ,  C08L23/14 ,  C08L51/06 ,  D01F6/46

    Abstract: Plastic materials with a melt flow index 230/2.16 of 0.1-100 g/10 minutes contain: (a1) propylene homopolymer with a melt flow index 230/2.16 of 0.1-100 g/10 minutes, or(a2) statistical copolymer of propylene and 2-10C alkene-1 with a comonomer content of less than 15 wt.%, or (a3) a mixt. of 25-97 wt.% of a copolymer of propylene and 0.1-15 wt.% 2-10C alkene-1 and 3-75 wt.% of another propylene copolymer contg. 15-80 wt.% 2-10C alkene-1 units, or(a4) a mixt. of 25-97 wt.% propylene homopolymer and 3-75 wt.% propylene/2-10C alkene-1 copolymer, with a comonomer content of 15-80 wt.% w.r.t. the second polymer, (b) a propylene or ethylene polymer grafted with 0.1-5 wt.% alpha , beta -unsatd. carboxylic acid or acid deriv., with a melt flow index 230/2.16 of 0.01-400 g/10 minutes, and (c) a nitrogen cpd. of formula (I): R =H, 1-30C alkyl, 2-30C alkyl or alk-1-enyl substd. with O atom(s) and/or amino gps., or a gp. of formula (II):HO-(CHR -CHR )m- (II)R =H, 1-4C alkyl or amino; andm=1-100. Also claimed are: (i) a process for the prodn. of the materials, by reacting components (a)-(c) together at 180-280 deg C and 1-100 bar for a mean residence time of 0.2-10 minutes; and(ii) film, fibres and mouldings made from the materials.

    17.
    发明专利
    未知

    公开(公告)号：DE4240110A1

    公开(公告)日：1994-06-01

    申请号：DE4240110

    申请日：1992-11-28

    Applicant: BASF AG

    Inventor： SCHERR GUENTER DR ,  REUTHER WOLFGANG DR ,  LORENCAK PRIMOZ DR ,  MOENCH DIETMAR DR ,  LINHART FRIEDRICH DR ,  WEISER JUERGEN DR

    IPC: C08G69/48 ,  C08G18/32 ,  C08G18/60 ,  C08G59/14 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  D21F1/66 ,  D21H11/14 ,  D21H17/46 ,  D21H17/54 ,  D21H17/56 ,  D21H21/10 ,  C08G59/54 ,  C08G18/40

    Abstract: Condensation products of polyalkylene polyamines produced by a) the partial amidation of polyalkylene polyamines and b) the condensation of the partially amidated polyalkylene polyamine with at least difunctional cross-linking agents to form cross-linked polyalkylene polyamines having a viscosity of at least 100 mPas in 20% aqueous solution at 20 DEG C, process for producing the condensation products of polyalkylene polyamines by partial amidation of polyalkylene amines with carboxylic acids, carboxylic acid esters, carboxylic acid anhydrides or carboxylic acid halogenides and cross-linking the partially amidated polyalkylene polyamines with at least difunctional cross-linking agents, wherein to one part by weight of the partially amidated polyalkylene polyamines are added 0.001 to 10 parts by weight of a cross-linking agent, and the use of the condensation products thus obtained as dehydrating, flocculating and retention agents and as fixing agents in papermaking.

    19.
    发明专利
    未知

    公开(公告)号：AT238276T

    公开(公告)日：2003-05-15

    申请号：AT98119421

    申请日：1998-10-14

    Applicant: BASF AG

    Inventor： GREINDL THOMAS DR ,  SCHERR GUENTER DR ,  SCHNEIDER ROLF DR ,  MUNDINGER KLAUS DR

    IPC: C07C277/02 ,  C07C273/18 ,  C07C275/70 ,  C07C277/08 ,  C07C279/04 ,  C07C279/14 ,  C07C303/22 ,  C07C303/30 ,  C07C309/15 ,  C07C309/69 ,  C07C311/47 ,  C08G65/333 ,  C08G73/02

    Abstract: Preparation of guanidine derivatives comprises reacting calcium cyanamide with an alcohol to form an isourea derivative and reacting the isourea derivative with an amine. Preparation of guanidine derivatives of formula H2N-C(=NH)-N(R )(R ) (I) comprises (a) reacting calcium cyanamide with an alcohol of formula R OH to form an isourea derivative of formula H2N-C(=NH)-OR (II), and (b) reacting (II) with an amine of formula HN(R )(R ) (III), where R = H, 1-20C alkyl, 2-10C alkenyl or 3-8C cycloalkyl; R = 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl, ACOOR , ACONR R , ACN, ASO2R or Ä(CH2)mXÜpÄ(CH2)nYÜqÄ(CH2)oÜrZ; A = 1-20C alkylene; m, n and o = 0-10; p, q and r = 0-50000; X = O or NH; Y = NÄ(CH2)mXÜpÄ(CH2)nYÜqÄ(CH2)oÜrZ; Z = OH or NH2; R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl, 6-18C aryl, Na, K, Li, Ca, Mg or N(R )4; R , R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl or 6-18C aryl; R = OR or N(R )2; R = H or 1-20C alkyl; R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl, 6-18C aryl, Na, K, Li, Ca, Mg or N(R )4; R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl or 6-18C aryl; and R = 1-20C alkyl.

    20.
    发明专利
    未知

    公开(公告)号：DE19748694A1

    公开(公告)日：1999-05-06

    申请号：DE19748694

    申请日：1997-11-04

    Applicant: BASF AG

    Inventor： GREINDL THOMAS DR ,  SCHERR GUENTER DR ,  SCHNEIDER ROLF DR ,  MUNDINGER KLAUS DR

    IPC: C07C277/02 ,  C07C273/18 ,  C07C275/70 ,  C07C277/08 ,  C07C279/04 ,  C07C279/14 ,  C07C303/22 ,  C07C303/30 ,  C07C309/15 ,  C07C309/69 ,  C07C311/47 ,  C08G65/333 ,  C08G73/02 ,  C07C279/08 ,  C07C279/12 ,  C07B43/00 ,  C08G65/26

    Abstract: Preparation of guanidine derivatives comprises reacting calcium cyanamide with an alcohol to form an isourea derivative and reacting the isourea derivative with an amine. Preparation of guanidine derivatives of formula H2N-C(=NH)-N(R )(R ) (I) comprises (a) reacting calcium cyanamide with an alcohol of formula R OH to form an isourea derivative of formula H2N-C(=NH)-OR (II), and (b) reacting (II) with an amine of formula HN(R )(R ) (III), where R = H, 1-20C alkyl, 2-10C alkenyl or 3-8C cycloalkyl; R = 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl, ACOOR , ACONR R , ACN, ASO2R or Ä(CH2)mXÜpÄ(CH2)nYÜqÄ(CH2)oÜrZ; A = 1-20C alkylene; m, n and o = 0-10; p, q and r = 0-50000; X = O or NH; Y = NÄ(CH2)mXÜpÄ(CH2)nYÜqÄ(CH2)oÜrZ; Z = OH or NH2; R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl, 6-18C aryl, Na, K, Li, Ca, Mg or N(R )4; R , R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl or 6-18C aryl; R = OR or N(R )2; R = H or 1-20C alkyl; R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl, 6-18C aryl, Na, K, Li, Ca, Mg or N(R )4; R = H, 1-20C alkyl, 2-10C alkenyl, 3-8C cycloalkyl or 6-18C aryl; and R = 1-20C alkyl.

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