公开(公告)号：DK0751118T3

公开(公告)日：1999-12-27

申请号：DK96110026

申请日：1996-06-21

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  BRUCHMANN BERND DR ,  MINGES ROLAND DR ,  KELLER PETER DR ,  VAN PEE WILLY DR ,  HEIDER WOLFGANG ,  POHL SIEGMUND DR ,  OTTO BERNHARD DR ,  JACOBS PAUL DR ,  SEYFERT WILFRIED DR

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/12 ,  C07C265/14

Abstract: Prodn. of mixts. of diphenylmethanedi-isocyanates and polyphenyl-polymethylene-polyisocyanates (i.e. crude MDI) with a low iodine number and a low chlorine content comprises (a) reacting the corresp. mixts. of diamines and polyamines (MDA) with phosgene in presence of inert solvent(s) at elevated temp., (b) removing excess phosgene and solvent and (c) thermal treatment of the prod.. After phosgenation (a), an effective amt. of a mixt. (I) of water and mono- or polyhydric polyoxyalkylene alcohol(s) (II) is added to the reaction mixt. in the presence or absence of phosgene.

公开(公告)号：AT185554T

公开(公告)日：1999-10-15

申请号：AT96110026

申请日：1996-06-21

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  BRUCHMANN BERND DR ,  MINGES ROLAND DR ,  KELLER PETER DR ,  VAN PEE WILLY DR ,  HEIDER WOLFGANG ,  POHL SIEGMUND DR ,  OTTO BERNHARD DR ,  JACOBS PAUL DR ,  SEYFERT WILFRIED DR

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/12 ,  C07C265/14

Abstract: Prodn. of mixts. of diphenylmethanedi-isocyanates and polyphenyl-polymethylene-polyisocyanates (i.e. crude MDI) with a low iodine number and a low chlorine content comprises (a) reacting the corresp. mixts. of diamines and polyamines (MDA) with phosgene in presence of inert solvent(s) at elevated temp., (b) removing excess phosgene and solvent and (c) thermal treatment of the prod.. After phosgenation (a), an effective amt. of a mixt. (I) of water and mono- or polyhydric polyoxyalkylene alcohol(s) (II) is added to the reaction mixt. in the presence or absence of phosgene.

公开(公告)号：DK0555742T3

公开(公告)日：1998-10-07

申请号：DK93101611

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：DE59308484D1

公开(公告)日：1998-06-10

申请号：DE59308484

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：DE59208991D1

公开(公告)日：1997-12-04

申请号：DE59208991

申请日：1992-07-17

Applicant: BASF AG

Inventor： SCHWARZ HANS VOLKMAR DR ,  OTTERBACH ANDREAS DR ,  MATTNER OTTO ,  MERGER FRANZ DR ,  SCHWARZ WOLFGANG DR ,  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：AT140448T

公开(公告)日：1996-08-15

申请号：AT93117851

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 ,  GENZ MANFRED DR ,  SCHOLZ GUENTER DR ,  STREU JOACHIM 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：DE19502939A1

公开(公告)日：1996-08-01

申请号：DE19502939

申请日：1995-01-31

Applicant: BASF AG

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

IPC: B01D21/01 ,  B01J19/00 ,  B01J19/24 ,  C02F1/56 ,  C08F2/00 ,  C08F2/10 ,  C08F2/16 ,  C08F4/04 ,  C08F20/00 ,  C08F20/06 ,  C08F20/56 ,  C08F20/34

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：DE4420642A1

公开(公告)日：1995-12-21

申请号：DE4420642

申请日：1994-06-14

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  MEYER THOMAS ,  KLEINKE ANDREAS DR ,  SCHORNICK GUNNAR DR ,  MINGES ROLAND DR ,  LUDWIG ALFONS DR

IPC: C08G73/10 ,  C09K23/00 ,  C11D3/37

Abstract: A process is disclosed for preparing polyaspartic acid imides. A mixture of aspartic acid and phosphoric acid in a molar ratio from 1:0.8 to 1:3 is condensed at a temperature from 80 to 150 DEG C into a pre-condensate liquid in the reaction conditions, and the pre-condensate is then polycondensed under shearing at temperatures from 180 to 250 DEG C in a layer with 0.1 to 10 mm thickness.

公开(公告)号：DE59105349D1

公开(公告)日：1995-06-08

申请号：DE59105349

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：DE4215760A1

公开(公告)日：1993-11-18

申请号：DE4215760

申请日：1992-05-13

Applicant: BASF AG

Inventor： WOLFF STEFAN DR ,  MINGES ROLAND DR ,  KOKEL NICOLAS DR

IPC: C08G18/79 ,  C07D229/00

Abstract: Producing isocyanurate and uretdione gp.-contg. polyisocyanate mixts. with low colour values (I) comprises catalytic oligomerisation of (cyclo)aliphatic di-isocyanates (II), removal of unreacted monomers and subsequent treatment with radical-forming azo cpds. (III). Also claimed are mixts. with low colour values (I) as obtd. by this process. (III) have decompsn. pt. 20-150 (pref. 50-100) deg. C; the reaction is carried out at above the decompsn. temp., using 200-5000 (pref. 500-3000) ppm (III) (w.rt. mixt. I) and continued until nitrogen evolution ceases. Pref. (II) is 1,6-di-isocyanatohexane (HDI); oligomerisation is carried out at 0-100 deg. C in the presence of catalysts such as tetraalkylammonium cpds., Zn salts of alkylcarboxylic acids etc., after which the catalsyt is deactivated (e.g, by heat) and unreacted (I) is removed by evapn. Various suitable azo cpds. (III) are given; pref. (III) is AIBN. USE/ADVANTAGE - Used for the prodn. of high-grade polyurethane (PU) paints with high light stability and weather resistance. The invention provides a simple method for producing light-coloured (I) without interferring with the oligomerisation reaction, or for further lightening the colour of dark prods. (I). Cpds. (III) are easily handled (contrast peroxides as used in a prior-art process), and the reaction can be monitored by the evolution of nitrogen.