公开(公告)号：DE19633404A1

公开(公告)日：1998-02-26

申请号：DE19633404

申请日：1996-08-19

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  REIF MARTIN DR ,  HOFSCHEUER WERNER ,  JAEHME JOACHIM DR ,  LANGER WERNER DR ,  RENZ HANS DR ,  MOHRHARDT GUENTER ,  SCHIESL MICHAEL

IPC: C07C273/18 ,  C07C275/62 ,  C08G18/08 ,  C08G18/30 ,  C08G18/32 ,  C08G18/78 ,  C09D175/12 ,  C08J9/00

Abstract: A process is disclosed for producing a polyisocyanate containing biuret groups from at least one aliphatic, cycloaliphatic or araliphatic diisocyanate or a mixture of two or more such substances, and from at least one amine or water or a mixture of water and at least one amine as reactants. The reactants are mixed together and made to react in a mixing element with a high shearing effect.

公开(公告)号：DK0445602T3

公开(公告)日：1995-07-17

申请号：DK91102593

申请日：1991-02-22

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  SCHERZER DIETRICH DR ,  MINGES ROLAND DR ,  LANGER WERNER 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：DE4126359A1

公开(公告)日：1993-02-11

申请号：DE4126359

申请日：1991-08-09

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  MINGES ROLAND DR ,  LEHRICH FRIEDHELM DR ,  LANGER WERNER DR

IPC: C07C267/00 ,  C08G18/02 ,  C08G18/28 ,  C08G18/79 ,  C08K5/29 ,  C08L67/00

Abstract: Oligomeric carbodiimides having an average degree of condensation of from 2 to 30, obtainable by oligocondensation of a) from 40 to 100 mol % of 2,4'-diisocyanatodiphenylmethane or of a 3,3',5,5'-tetra-C1-C4-alkyl-4,4'-diisocyanatodiphenylmethane and b) from 0 to 60 mol % of a further bi- or polyfunctional aromatic isocyanate and c) if desired, complete or partial reaction of the remaining free isocyanate groups of the oligomers with an aliphatic, araliphatic or cycloaliphatic alcohol or amine, are used mainly for stabilizing polyester-containing polyurethanes against hydrolytic degradation.

公开(公告)号：DE4008074A1

公开(公告)日：1991-09-19

申请号：DE4008074

申请日：1990-03-14

Applicant: BASF AG

Inventor： BRUCHMANN BERND DR ,  BORSCHEL EVA-MARIE DR ,  OTTO BERNHARD DR ,  LANGER WERNER DR ,  MINGES ROLAND DR ,  STRAEHLE WOLFGANG DR ,  PEE WILLY VAN DR

IPC: C07C209/84

公开(公告)号：DE4006978A1

公开(公告)日：1991-09-12

申请号：DE4006978

申请日：1990-03-06

Applicant: BASF AG

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

IPC: C07C263/20

Abstract: Mixt (I) of diphenylmethane di-isocyanates and polyphenylpolymethylene polyisocyanates is pred by, (1) reacting corresp mixt of diphenylmethane diamines and polyphenylpolymethylene polyamines with phosgene (II) in presence of at least one inert organic solvent at raised temp, (2) after phosgenation has finished, incorporating effective amt of phosphite (III) which is a tri-and/or di-alkyl phosphite, (3) removing excess (II) and solvent, and (4) heating reaction mixt. USE/ADVANTAGE - For use in prodn of compact or foamed polyisocyanate polyaddn prods, partic flexible semihard or hard foams contg urethane and opt isocyanurate gps, having lighter colour. (I) having reduced iodine colour is obtd without addn of small proportion of water after phosgenation but before complete sepn of (II) (US4465639), which promotes corrosive effect of C12, HCl and (II) on appts and causes risk of leak of (II) or (II)-contg reaction mixt.

公开(公告)号：ES2073651T3

公开(公告)日：1995-08-16

申请号：ES91119998

申请日：1991-11-23

Applicant: BASF AG

Inventor： FILGES ULRICH DR ,  AYDIN ORAL DR ,  AUCHTER GERHARD DR ,  BARWICH JUERGEN DR ,  ANDERS HERMANN ,  LANGER WERNER DR ,  VORSPOHL KLAUS DR

IPC: C08L33/00 ,  C08F2/38 ,  C08F8/00 ,  C08F8/30 ,  C08F8/46 ,  C08F218/04 ,  C08F220/12 ,  C08F220/18 ,  C08G18/30 ,  C08G18/32 ,  C08G18/62 ,  C08G18/72 ,  C08K5/54 ,  C08L31/02 ,  C08L33/04 ,  C08L33/06 ,  C08L75/00 ,  C08L75/04 ,  C09D131/02 ,  C09D133/06 ,  C09D175/00 ,  C09J131/02 ,  C09J133/06 ,  C09J175/00 ,  C09K3/10

Abstract: Copolymers based on acrylic, methacrylic and/or vinyl esters which are self-curable in the presence of atmospheric moisture and have been prepared using silicon-containing regulators, and mixtures of such polymers with crosslinking components. The products are suitable as adhesives, sealants and coating materials which are self-curable in the presence of atmospheric moisture.

公开(公告)号：DE59105870D1

公开(公告)日：1995-08-03

申请号：DE59105870

申请日：1991-11-23

Applicant: BASF AG

Inventor： FILGES ULRICH DR ,  AYDIN ORAL DR ,  AUCHTER GERHARD DR ,  BARWICH JUERGEN DR ,  ANDERS HERMANN ,  LANGER WERNER DR ,  VORSPOHL KLAUS DR

IPC: C08L33/00 ,  C08F2/38 ,  C08F8/00 ,  C08F8/30 ,  C08F8/46 ,  C08F218/04 ,  C08F220/12 ,  C08F220/18 ,  C08G18/30 ,  C08G18/32 ,  C08G18/62 ,  C08G18/72 ,  C08K5/54 ,  C08L31/02 ,  C08L33/04 ,  C08L33/06 ,  C08L75/00 ,  C08L75/04 ,  C09D131/02 ,  C09D133/06 ,  C09D175/00 ,  C09J131/02 ,  C09J133/06 ,  C09J175/00 ,  C09K3/10

Abstract: Copolymers based on acrylic, methacrylic and/or vinyl esters which are self-curable in the presence of atmospheric moisture and have been prepared using silicon-containing regulators, and mixtures of such polymers with crosslinking components. The products are suitable as adhesives, sealants and coating materials which are self-curable in the presence of atmospheric moisture.

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：DE4006976A1

公开(公告)日：1991-09-12

申请号：DE4006976

申请日：1990-03-06

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.