公开(公告)号：ZA9706164B

公开(公告)日：1999-01-11

申请号：ZA9706164

申请日：1997-07-11

Applicant: BASF AG

Inventor： GENZ MANFRED ,  MERGER ROLAND ,  BOLLMANN HEINZ ,  THAERIGEN RAINA ,  VOELKEL RUEDIGER ,  KRAUS RUPERT ,  POHL SIEGMUND

IPC: C08G18/77 ,  C08J9/00 ,  C08G ,  C08J

CPC classification number: C08J9/00 ,  C08G18/771 ,  C08G2101/0008 ,  C08G2101/0066 ,  C08G2101/0083 ,  C08J2375/04

公开(公告)号：CA2102821C

公开(公告)日：1998-11-03

申请号：CA2102821

申请日：1993-11-10

Applicant: BASF AG

Inventor： POHL SIEGMUND ,  LEHRICH FRIEDHELM ,  SCHOLZ GUENTER ,  STREU JOACHIM ,  TESCH HELMUT ,  SWOBODA JOHANN ,  GENZ MANFRED ,  BRUCHMANN BERND ,  MINGES ROLAND

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

Abstract: 4,4'-disubstituted bis-(2,6-diisopropylphenyl)carbodiimides of the formula (I) (see fig. I) where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups, and the novel 4-(1-methyl-1-phenylethyl)-2,6-diisopropyl-, 4-phenoxy-2,6-diisopropyl- and 4-tert-butyl-2,6-diisopropylphenyl isocyanates which can be used for their preparation.

公开(公告)号：DE59303251D1

公开(公告)日：1996-08-22

申请号：DE59303251

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：DE4442723A1

公开(公告)日：1996-06-05

申请号：DE4442723

申请日：1994-12-01

Applicant: BASF AG

Inventor： KIELHORN-BAYER SABINE DR ,  EICHENAUER ULRICH DR ,  EBERLE WOLFGANG DR ,  MUEHLBACH KLAUS DR ,  POHL SIEGMUND

IPC: C07C267/00 ,  C08K5/29 ,  C08L59/00 ,  C08L79/00 ,  D01F1/10 ,  D01F6/94

Abstract: Thermoplastic moulding materials contain (A) 10-99 wt.% polyoxymethylene homo- or co-polymer (POM), (b) 0.01-10 wt.% of a carbodi-imide of formula (I). R = -NCO, -NHCONHR , -NHCONR R or NHCOOR ; R , R = alkyl, cycloalkyl or aralkyl; R = as for R , or an alkoxy(poly)oxyalkylene gp.; n = 0-10; and A = gp. (i) (C) 0-80 wt.% conventional additives and processing aids. Also claimed are moulded prods. obtd. from these materials.

公开(公告)号：BR9402198A

公开(公告)日：1995-03-07

申请号：BR9402198

申请日：1994-06-07

Applicant: BASF AG

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

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：DE50208205D1

公开(公告)日：2006-11-02

申请号：DE50208205

申请日：2002-03-06

Applicant: BASF AG

Inventor： REIF MARTIN ,  BRUCHMANN BERND ,  POHL SIEGMUND ,  BETTENDORF CARL ,  PLAUMANN HEINZ ,  THIELE KAI

IPC: C07C263/10 ,  C08G18/76 ,  C07B61/00 ,  C07C263/20 ,  C07C265/14

Abstract: MDI is prepared by a process comprising the following steps: A) reaction of aniline and formaldehyde in the presence of an acid to give methylene(diphenyldiamines) and polymethylenepolyphenylenepolyamines, the molar ratio of acid to amine being not more than 0.2, B) reaction of the mixture obtained in step A) with phosgene to give methylene(diphenyl diisocyanates) and polymethylenepolyphenylene polyisocyanates, C) separation of the mixture obtained in step B) into monomeric MDI and polymeric MDI and D) separation of the monomeric MDI obtained in step C) by isolating 2,4'-MDI.

公开(公告)号：AT340204T

公开(公告)日：2006-10-15

申请号：AT02726142

申请日：2002-03-06

Applicant: BASF AG

Inventor： REIF MARTIN ,  BRUCHMANN BERND ,  POHL SIEGMUND ,  BETTENDORF CARL ,  PLAUMANN HEINZ ,  THIELE KAI

IPC: C07C263/10 ,  C07B61/00 ,  C07C263/20 ,  C07C265/14 ,  C08G18/76

Abstract: MDI is prepared by a process comprising the following steps: A) reaction of aniline and formaldehyde in the presence of an acid to give methylene(diphenyldiamines) and polymethylenepolyphenylenepolyamines, the molar ratio of acid to amine being not more than 0.2, B) reaction of the mixture obtained in step A) with phosgene to give methylene(diphenyl diisocyanates) and polymethylenepolyphenylene polyisocyanates, C) separation of the mixture obtained in step B) into monomeric MDI and polymeric MDI and D) separation of the monomeric MDI obtained in step C) by isolating 2,4'-MDI.

公开(公告)号：ES2099993T3

公开(公告)日：1997-06-01

申请号：ES94108216

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

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：MX9602508A

公开(公告)日：1997-04-30

申请号：MX9602508

申请日：1996-06-27

Applicant: BASF AG

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

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/12 ,  C07C265/14 ,  C08G18/02

Abstract: Un proceso para preparar mezclas de diisocianatos de difenilmetano y poliisocianatos de polifenilpolimetileno que tienen un numero de color de yodo reducido y un contenido de cloro reducido haciendo reaccionar las mezclas correspondientes de difenilmetandiaminas y polifenilpolimetilenpoliaminas con fosgeno en presencia de por lo menos un solvente orgánico inerte a temperatura elevada, separar el exceso de fosgeno y el solvente después de completarse la fosgenacion y tratar térmicamente el producto de reaccion, en donde una mezcla de agua y por lo menos un alcohol de polioxialquileno monohídrico o polihídrico o una mezcla de los mismos se incorpora en una cantidad efectiva en la mezcla de reaccion después de que se completa la fosgenacion, en presencia o ausencia de fosgeno.

公开(公告)号：DK0597382T3

公开(公告)日：1996-08-12

申请号：DK93117851

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.