公开(公告)号：DE4102174A1

公开(公告)日：1992-07-30

申请号：DE4102174

申请日：1991-01-25

Applicant: BASF AG

Inventor： BOTT KASPAR DR ,  KING HORST DR ,  SPANG CLAUDIA DR ,  MINGES ROLAND DR ,  STRAEHLE WOLFGANG DR

IPC: C08G18/08 ,  C08G18/00 ,  C08G18/10 ,  C08G18/42 ,  C08G18/44 ,  C08G18/65 ,  C08G18/76 ,  C08G64/18 ,  C08G101/00 ,  C08J9/02

Abstract: The invention relates to a process for the preparation of cellular polyurethane elastomers by reacting …… a) organic and/or modified organic polyisocyanates with … b) a polyether polycarbonate diol containing bonded polyoxytetramethylene glycol radicals having a mean molecular weight Mn (number average) of from 150 to 500, and optionally … c) low-molecular-weight chain extenders and/or crosslinking agents, … in the presence of … d) blowing agents, … e) catalysts and … f) optionally additives and/or assistants. …

公开(公告)号：DE59600721D1

公开(公告)日：1998-12-03

申请号：DE59600721

申请日：1996-01-23

Applicant: BASF AG

Inventor： HAEHNLE HANS-JOACHIM DR ,  NEUFELD ECKHARD ,  SCHORNICK GUNNAR DR ,  MINGES ROLAND DR ,  ANSTOCK THOMAS DR ,  TROPSCH JUERGEN DR ,  KRAUSS HANS-JUERGEN

IPC: B01D21/01 ,  B01J19/00 ,  B01J19/24 ,  C02F1/56 ,  C08F2/00 ,  C08F2/10 ,  C08F2/16 ,  C08F4/04 ,  C08F20/00

Abstract: Prodn. of high mol. polymers involves: (a) polymerising water-soluble, mono-ethylenically unsatd. monomers and opt. crosslinkers contg. non-conjugated ethylenically unsatd. double bonds. in the molecule and opt. water-insol. monoethylenically unsatd. monomers in aq. soln. in the presence of polymerisation initiators in a tubular reactor; and (b) forcing the gelatinous reaction mixt. from the reactor with an inert gas. The reactor has: (i) a conical taper at one end, so the ratio of the dia. (D1) of the reactor to the dia. (D2) at the end of the cone is (2-25); and (ii) the angle between D1 at the beginning of the cone and the inner wall of the cone of more than 45 and less than 90 degrees .

公开(公告)号：AT165851T

公开(公告)日：1998-05-15

申请号：AT93101611

申请日：1993-02-03

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER DR ,  BRUCHMANN BERND DR ,  SPANG CLAUDIA ,  MINGES ROLAND DR ,  SCHERZER DIETRICH DR ,  LUGMAYR MICHAEL ,  ZSCHIESCHE RUTH DR

IPC: C08G18/10 ,  C08G18/12 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08G18/72 ,  C08G18/76 ,  C08G101/00 ,  C08J9/02

Abstract: The invention relates to a process for the preparation of CFC-free flexible polyurethane(moulded) foams by reacting A) liquid polyisocyanate mixtures containing bonded urethane groups and containing from 20 to 30% by weight of NCO groups, themselves prepared by reacting a mixture of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates (crude MDI) with a polyether-polyol mixture having a hydroxyl number of from 120 to 25 comprising at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene polyoxyethylene polyol containing from 90 to 10% by weight of ethylene oxide units or by reacting 4,4'-diphenylmethane diisocyanate (MDI) or an MDI isomer mixture with said polyether polyol mixture to give an NCO-containing quasi-prepolymer, and diluting this quasi-prepolymer with crude MDI, with B) relatively high-molecular-weight polyhydroxyl compounds and optionally C) low-molecular-weight chain extenders and/or crosslinking agents, in the presence of D) blowing agents E) catalysts and optionally F) auxiliaries and/or additives, and to the urethane group-modified polyisocyanate mixtures (A) which can be used according to the invention.

公开(公告)号：DK0524554T3

公开(公告)日：1997-12-15

申请号：DK92112212

申请日：1992-07-17

Applicant: BASF AG

Inventor： MERGER FRANZ DR ,  OTTERBACH ANDREAS DR ,  SCHWARZ WOLFGANG DR ,  SCHWARZ HANS VOLKMAR DR ,  MATTNER OTTO ,  BRANDT ECKHARDT DR ,  MAGNUSSEN PETER DR ,  MINGES ROLAND DR

IPC: B01J6/00 ,  C07C263/04 ,  C07C265/00 ,  C07C271/06

Abstract: A reactor for thermal cleavage of monofunctional and polyfunctional carbamic acid esters to the corresponding isocyanates and the hydroxyl components in the liquid phase, in which the geometry of the reactor, characterised by the degassing surface in proportion to the volume and the arrangement of the heating surfaces, makes possible the cleavage in a two-phase mixture which contains over 50% volumetric gas content.

公开(公告)号：DE59402423D1

公开(公告)日：1997-05-22

申请号：DE59402423

申请日：1994-05-28

Applicant: BASF AG

Inventor： POHL SIEGMUND ,  LEHRICH FRIEDHELM DR ,  GENZ MANFRED DR ,  BRUCHMANN BERND DR ,  TESCH HELMUT DR ,  MINGES ROLAND DR ,  STREU JOACHIM DR

IPC: C07B61/00 ,  C07C267/00 ,  C07C271/20 ,  C07C273/18 ,  C07C275/14 ,  C07C275/24 ,  C07C275/26 ,  C07C275/40 ,  C08G18/02 ,  C08G18/28 ,  C08G18/66 ,  C08G18/79 ,  C08K5/29 ,  C08L75/04

Abstract: The subjects of the invention are novel carbodiimides and/or oligomeric polycarbodiimides having terminal isocyanate, urethane and/or urea groups, obtainable e.g. by condensation with elimination of carbon dioxide of 1,3-bis(1-methyl-1-isocyanatoethyl)benzene and thereafter optionally partial or complete reaction of the free isocyanate groups of the resulting (poly)carbodiimides with aliphatic, cycloaliphatic or araliphatic amines, alcohols and/or alkoxypolyoxyalkylene alcohols, a process for their preparation and their use as a stabiliser against the hydrolytic degradation of polyaddition and polycondensation products containing ester groups.

公开(公告)号：AT151745T

公开(公告)日：1997-05-15

申请号：AT94108216

申请日：1994-05-28

Applicant: BASF AG

Inventor： POHL SIEGMUND ,  LEHRICH FRIEDHELM DR ,  GENZ MANFRED DR ,  BRUCHMANN BERND DR ,  TESCH HELMUT DR ,  MINGES ROLAND DR ,  STREU JOACHIM DR

IPC: C07B61/00 ,  C07C267/00 ,  C07C271/20 ,  C07C273/18 ,  C07C275/14 ,  C07C275/24 ,  C07C275/26 ,  C07C275/40 ,  C08G18/02 ,  C08G18/28 ,  C08G18/66 ,  C08G18/79 ,  C08K5/29 ,  C08L75/04

Abstract: The subjects of the invention are novel carbodiimides and/or oligomeric polycarbodiimides having terminal isocyanate, urethane and/or urea groups, obtainable e.g. by condensation with elimination of carbon dioxide of 1,3-bis(1-methyl-1-isocyanatoethyl)benzene and thereafter optionally partial or complete reaction of the free isocyanate groups of the resulting (poly)carbodiimides with aliphatic, cycloaliphatic or araliphatic amines, alcohols and/or alkoxypolyoxyalkylene alcohols, a process for their preparation and their use as a stabiliser against the hydrolytic degradation of polyaddition and polycondensation products containing ester groups.

公开(公告)号：ES2089676T3

公开(公告)日：1996-10-01

申请号：ES93117851

申请日：1993-11-04

Applicant: BASF AG

Inventor： LEHRICH FRIEDHELM DR ,  POHL SIEGMUND ,  BRUCHMANN BERND DR ,  TESCH HELMUT DR ,  MINGES ROLAND DR ,  SWOBODA JOHANN DR

IPC: C07C265/10 ,  C07C265/12 ,  C07C267/00 ,  C08G18/00 ,  C08G18/02 ,  C08G18/71 ,  C08K5/29

Abstract: The invention relates to novel 4,4'-disubstituted bis(2,6-diisopropylphenyl)carbodiimides of the formula (I) in which R is a 1-methyl-1-phenylethyl, phenoxy or tert-butyl radical, to a process for their preparation and to their use as stabilisers with respect to the hydrolytic degradation of ester group-containing products of addition and condensation polymerisation, and to the novel compounds which can be used to prepare them, namely 4-(1-methyl-1-phenylethyl)-2,6-diisopropylphenyl, 4-phenoxy-2,6-diisopropylphenyl and 4-tert-butyl-2,6-diisopropylphenyl isocyanates.

公开(公告)号：ES2071140T3

公开(公告)日：1995-06-16

申请号：ES91102593

申请日：1991-02-22

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  MINGES ROLAND DR ,  LANGER WERNER DR ,  BRUCHMANN BERND DR ,  HEIDER WOLFGANG ,  KELLER PETER DR ,  SCHMITT ARNOLD ,  VAN PEE WILLY DR

IPC: C07C263/18 ,  C07C263/20 ,  C07C265/14

Abstract: The invention relates to a process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (crude MDI) having a reduced iodine colour value by reaction of corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at elevated temperature, in which, after phosgenation of the reaction mixture is complete, low-molecular-weight alkanols, polyhydric alcohols, preferably di- to octahydric alcohols having a molecular weight of 60 to 350, or mixtures thereof are incorporated in an effective amount, advantageously in an amount of 0.01 to 5% by weight, relative to the crude MDI weight, the phosgene and the inert organic solvent are then separated off, 0 to 5% by weight, relative to the crude MDI weight, of at least one phenol-based antioxidant and/or aryl phosphite are added to the reaction product, and the reaction mixture is subjected to a heat treatment.

公开(公告)号：DE4412317A1

公开(公告)日：1994-10-27

申请号：DE4412317

申请日：1994-04-11

Applicant: BASF AG

Inventor： STERZEL HANS-JOSEF DR ,  RUETTER HEINZ DR ,  DAUNS HARALD DR ,  MATTHIES HANS GEORG DR ,  MINGES ROLAND DR

IPC: C08G63/08 ,  C08G63/78 ,  C08G63/82

Abstract: Polylactide having a number average molecular weight of greater than 30,000 or a weight average molecular weight of greater than 60,000, where in each case a 5 to 15% portion by weight is in the molecular weight range of up to 10,000 and in the molecular weight range above 500,000, and a process for the preparation thereof.

公开(公告)号：DE4218540A1

公开(公告)日：1993-12-09

申请号：DE4218540

申请日：1992-06-05

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  MINGES ROLAND DR ,  SCHADE CHRISTIAN DR

IPC: B01J31/06 ,  C07B61/00 ,  C07C263/16 ,  C07C265/14 ,  C07D229/00 ,  C08F222/08 ,  C08F226/06 ,  C08G18/79

Abstract: The invention relates to a process for the preparation of polyisocyanates containing uretdione groups by catalytic dimerisation of monomeric isocyanates, polymers bearing imidazole groups being employed as catalysts.