公开(公告)号：CA2122973C

公开(公告)日：1998-05-05

申请号：CA2122973

申请日：1994-05-05

Applicant: BASF AG

Inventor： HINZ WERNER ,  JUNG LUDWIG ,  HORN PETER

IPC: C08G18/08 ,  C08G18/00 ,  C08G18/22 ,  C08G18/30 ,  C08G18/32 ,  C08G18/48 ,  C08G18/50 ,  C08G18/65 ,  C08G18/66 ,  C08G101/00 ,  C08J9/00 ,  C08G18/12 ,  C08L75/08

Abstract: A process for the preparation of polyurethane foams, preferably semirigid polyurethane foams, having an improved foam structure involves reacting: a) organic and/or modified organic polyisocyanates with b) polyhydroxyl compounds containing at least 2 reactive hydrogen atoms and c) crosslinking agents which comprise at least one polyoxyalkylene-polyol having a mean functionality of from 3 to 8 and a hydroxyl number of from 200 to 1300 ppm and a content of alkali metal ions of from 150 to 1200 ppm, in the presence of: d) blowing agents, e) if desired catalysts, f) inorganic and/or organic acids as additives and g) if desired auxiliaries.

公开(公告)号：CA2082019C

公开(公告)日：1997-06-03

申请号：CA2082019

申请日：1992-11-03

Applicant: BASF AG

Inventor： HORN PETER ,  HINZ WERNER ,  KNOBLAUCH GEORG ,  RAMSTEINER FALKO ,  KNORR GOTTFRIED

IPC: A61L29/00 ,  A61F2/00 ,  A61L27/34 ,  A61M5/00 ,  B01D63/02 ,  C08G18/02 ,  C08G18/10 ,  C08G18/12 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08G18/76 ,  A61L27/00

Abstract: The invention relates to transparent, autoclavable, non-cytotoxic, essentially compact polyurethane embedding compositions which are prepared by reacting a) modified diphenylmethane diisocyanates with b) compounds with at least two reactive hydrogens, which contain or are composed of b1) at least one polyether-polyol with an average functionality of from 3 to 8, a hydroxyl number of from 200 to 1000 and an alkali metal ion content of from 150 to 1200 ppm or, preferably, a mixture of (b1) and castor oil and/or at least one polyetherpolyol (b2) with a functionality of from 2 to 3, a hydroxyl number of from 90 to 200 and an alkali metal ion content of less than 10 ppm in the presence or absence of c) catalysts and to a process for preparing the polyurethane embedding compositions and to the use thereof for articles used in medicine.

公开(公告)号：CA2095676C

公开(公告)日：1996-06-18

申请号：CA2095676

申请日：1993-05-06

Applicant: BASF AG

Inventor： HINZ WERNER ,  MALETZKO CHRISTIAN ,  BECKER JOHANNES ,  MATZKE GUENTER

IPC: C08G18/66 ,  C08G18/10 ,  C08G18/50 ,  C08G18/65 ,  C08G101/00 ,  C08J9/02 ,  C08J9/14 ,  B29C45/00 ,  B29C49/06

Abstract: Compact or cellular elastomers containing urethane and urea groups are prepared by reacting a) at least one organic and/or modified organic polyisocyanate b) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylenepolyamines and polyoxyalkylene-polyamines containing 2 to 4 primary amino groups and having a molecular weight of from 1000 to 8000, c) at least one alkyl-substituted aromatic polyamine having a molecular weight up to 500, in the presence or absence of d) catalysts and, if desired, e) blowing agents, f) auxiliaries and/or g) additives.

公开(公告)号：MX9303260A

公开(公告)日：1994-01-31

申请号：MX9303260

申请日：1993-06-01

Applicant: BASF AG

Inventor： MATZKE GUENTER ,  HINZ WERNER ,  MALETZKO CHRISTIAN ,  BECKER JOHANNES

IPC: C08G18/66 ,  C08G18/10 ,  C08G18/50 ,  C08G18/65 ,  C08G101/00 ,  C08J9/02 ,  C08J9/14 ,  C08G18/00

Abstract: The invention relates to a process for the preparation of compact or cellulose elastomers containing urethane and urea groups by reacting a) at least one organic and/or modified organic polyisocyanate with b) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylene-polyamines and polyoxyalkylene-polyamines having 2 to 4 primary amino groups and molecular weights of from 1,000 to 8,000, and c) at least alkyl-substituted aromatic polyamine having a molecular weight of up to 500, in the presence or absence of d) catalysts, and optionally e) blowing agents, f) auxiliaries and/or g) additives. om

公开(公告)号：ES2283837T3

公开(公告)日：2007-11-01

申请号：ES03772231

申请日：2003-10-17

Applicant: BASF CORP ,  BASF AG

Inventor： HINZ WERNER ,  DEXHEIMER EDWARD MICHAEL

IPC: C08G65/00 ,  C08G65/26 ,  C08G65/30

Abstract: Un método que comprende las etapas de: formar un poliol en presencia de un catalizador de cianuro metálico doble; añadir un ácido polímero soluble a dicho poliol; hacer reaccionar dicho ácido polímero con dicho catalizador de cianuro metálico doble para formar una aglomeración; y retirar dicha aglomeración de dicho poliol.

公开(公告)号：DE19824134A1

公开(公告)日：1999-12-02

申请号：DE19824134

申请日：1998-05-29

Applicant: BASF AG

Inventor： GUETTES BERND ,  HINZ WERNER ,  HEMPEL RENATE ,  ROTERMUND UDO ,  WETTERLING MONIKA

IPC: C07H15/04 ,  C08B31/12 ,  C08G18/48 ,  C08G65/26 ,  C08G65/28 ,  C08L75/00

Abstract: Reaction of acidified saccharide with an alkaline reagent and an alkylene oxide results in surface etherification or partial alkoxylation of the saccharide, whereby cleavage and side reactions are avoided. Combination of the alkoxylation product with sugar-based polyetherpolyol gives foamed polyurethane of increased heat resistance and profile stability on storage and decreased shrinkage. Compact or cellular oligo- and/or polysaccharide containing polyurethane is prepared by reaction of (a) high molecular compounds having at least two reactive H with (b) organic and/or inorganic modified organic di- and/or polyisocyanates; (c) a chain lengthening- and/or crosslinking agent; (d) a propellant; (e) catalysts; and (f) adjuvants. The high molecular compound (a) comprises (wt.%): (a1) saccharide containing compounds (1-100) and (a2) at least one polyol (0-99), relative to the total weight of (a). The saccharide containing compound (a1) comprises (wt.%): (a11) an alkoxylation component (1-99) and (a12) a polyoxyalkylenepolyol (1-99) of an oligo- and/or polysaccharide, relative to the total weight of alkoxylation component (a11), defined and prepared as below. Independent claims are included for: (1) An oligo- and/or polysaccharide alkoxylation component obtained by reaction of (wt.%): (a111) at least one oligo- and/or polysaccharide product (5-70) of pH 3.5-6 with (a112) an alkylene oxide (20-94.9), (a113) an alkali (0.1-10), relative to the total weight of alkoxylation component; (2) an oligo- and/or polysaccharide containing polyurethane prepared as above; a (3) shaped polyurethane parts obtained as above;

公开(公告)号：CA2032575C

公开(公告)日：1998-02-24

申请号：CA2032575

申请日：1990-12-18

Applicant: BASF AG

Inventor： VOLKERT OTTO ,  HINZ WERNER

IPC: C07C69/63 ,  C07C69/635 ,  C07C69/65 ,  C07C69/76 ,  C07C69/78 ,  C07C271/14 ,  C07C271/24 ,  C07C271/28 ,  C08G65/32 ,  C08G65/332 ,  C08G65/333 ,  C08G65/337 ,  C08J9/00 ,  C08K5/10 ,  C09K23/42 ,  C08L75/04 ,  C08G18/08 ,  C08J9/14

Abstract: Novel esters containing bonded fluorocarbon and oxypropylenealkylether groups and of the formula or where Rf is straight-chain or branched, partially fluorinated or perfluorinated alkyl of 2 to 10 carbon atoms, partially fluorinated or perfluorinated cycloalkyl of 4 to 8 carbon atoms, perfluorophenyl or perfluoroalkylphenyl where the perfluoroalkyl radical is of 1 to 6 carbon atoms, R is straight-chain or branched alkyl of 1 to 4 carbon atoms and n is an integer from 2 to 70, blowing agent-containing emulsions which have a long shelf life and contain at least one partially fluorinated or perfluorinated (cyclo)aliphatic hydrocarbon of 3 to 8 carbon atoms and/or sulfur hexafluoride, at least one unmodified or modified organic polyisocyanate or a relatively high molecular weight reactive hydrogen compound and at least one of the abovementioned carboxylic or carbamic esters, and the use of these emulsions for the preparation of cellular plastics by the polyisocyanate polyaddition method.

公开(公告)号：CA2042353C

公开(公告)日：1996-04-23

申请号：CA2042353

申请日：1991-05-10

Applicant: BASF AG

Inventor： HENN ROLF ,  HINZ WERNER ,  SCHUSTER LUDWIG ,  VORSPOHL KLAUS

IPC: C08G18/48 ,  C08G65/26 ,  C08G65/28 ,  C08J9/00

Abstract: The present invention relates to a process for the preparation of a hard foam containing urethane groups or urethane and isocyanurate groups by the polyisocyanate polyaddition process, by reacting a) a polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyol containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydroxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPa 23 .degree.C and prepared by anionic polymerization of 1,2-propylene oxide or ethylene oxide and 1,2-propylene oxide onto an initiator molecule mixture containing, based on the total weight, a1) from 40 to 80% by weight of a hexanetetrol, a2) from 1 to 30% by weight of a hexanetriol, a3) from 0 to 35% by weight of glycerol and a4) from 0 to 15% by weight of sorbitol or mannitol, or a mixture thereof, b) optionally, a low-molecular-weight chain extender and/or crosslinking agent with c) an organic, modified or unmodified polyisocyanate; in the presence of d) a blowing agent, e) a catalyst and, optionally, f) assistants and/or additives, and novel polyoxypropylene-polyols and polyoxyethylenepolyoxypropylene-polyols which can be used for this purpose.

公开(公告)号：DE60312900T2

公开(公告)日：2007-08-30

申请号：DE60312900

申请日：2003-10-17

Applicant: BASF CORP ,  BASF AG

Inventor： HINZ WERNER ,  DEXHEIMER EDWARD MICHAEL

IPC: C08G65/00 ,  C08G65/26 ,  C08G65/30

Abstract: A method of removing and reclaiming a double metal cyanide (DMC) catalyst from a polyol is disclosed. A polymeric acid that is soluble in the polyol is introduced into the polyol during or after the polymerization reaction. The polymeric acid reacts with the double metal cyanide catalyst thereby causing the double metal cyanide catalyst and the polymeric acid to form an agglomeration in the polyol. The agglomeration is easily separated from the polyol via filtration, for example. The recovered agglomerated DMC catalyst can then be reconstituted using an acid solution.

公开(公告)号：DE60312900D1

公开(公告)日：2007-05-10

申请号：DE60312900

申请日：2003-10-17

Applicant: BASF CORP ,  BASF AG

Inventor： HINZ WERNER ,  DEXHEIMER EDWARD MICHAEL

IPC: C08G65/00 ,  C08G65/26 ,  C08G65/30

Abstract: A method of removing and reclaiming a double metal cyanide (DMC) catalyst from a polyol is disclosed. A polymeric acid that is soluble in the polyol is introduced into the polyol during or after the polymerization reaction. The polymeric acid reacts with the double metal cyanide catalyst thereby causing the double metal cyanide catalyst and the polymeric acid to form an agglomeration in the polyol. The agglomeration is easily separated from the polyol via filtration, for example. The recovered agglomerated DMC catalyst can then be reconstituted using an acid solution.