公开(公告)号：JPH10306068A

公开(公告)日：1998-11-17

申请号：JP7019498

申请日：1998-03-19

Applicant: BASF AG

Inventor： KRAUS RUPERT DR ,  REIF MARTIN DR ,  BRUCHMANN BERND DR ,  TESCH HELMUT DR

IPC: C07C263/10 ,  C07C265/14 ,  C08G18/76

Abstract: PROBLEM TO BE SOLVED: To obtain isocyanate showing light color that is useful for production of polyurethane by reaction of phosgene with a specifically treated amine. SOLUTION: An amine as a raw material is treated with an inorganic solid substance that has the Lewis acid and/or Broensted acid centers (points) and the treated amine is allowed to react with phosgene to produce an isocyanate showing light color. This inorganic solid substance is, for example, an artificially modified natural or synthetic oxide and/or silicate salt, particularly aluminum silicate is preferred. The amine is preferably diphenylmethyldiamine and its higher homologues. The amine is preferably treated at 10-50 deg.C under 0.1-10 bar.

公开(公告)号：JP2000256436A

公开(公告)日：2000-09-19

申请号：JP6034999

申请日：1999-03-08

Applicant: BASF AG

Inventor： KOKEL NICOLAS DR ,  HAEBERLE KARL ,  KRAUS RUPERT DR

IPC: C07C267/00 ,  C08G18/79 ,  C08L67/00

Abstract: PROBLEM TO BE SOLVED: To provide a solid carbodiimide which has an urethane structures and/or an urea sructures, has a carbodiimide structures bonded to nonaromatic carbon atoms, and is useful as a stabilizer for polyester plastics. SOLUTION: This carbodiimide is solid at 25 deg.C and is produced by separating carbon dioxide in the presence of a catalyst from a diisocyanate having no isocyanate group bonded to an aromatic carbon atom, thus converting the diisocyanate into a carbodiimide, and reacting this isocyanate-group-containing carbodiimide with a compound having at least two isocyanate-reactive groups to form urethane structures and/or urea structures. Preferably, the diisocyanate is 1,3-bis(1-methyl-1-isocyanatoethyl)benzene. Preferable examples of the compound having at least two isocyanate-reactive groups are an organic compound having at least two hydroxyl groups, an organic compound having at least two amino groups, and an organic compound having at least one hydroxyl group and at least one amino group.

公开(公告)号：JPH1095763A

公开(公告)日：1998-04-14

申请号：JP17038197

申请日：1997-06-26

Applicant: BASF AG

Inventor： KRAUS RUPERT DR ,  TESCH HELMUT DR ,  BRUCHMANN BERND DR ,  SEYFERT WILFRIED DR ,  NEVEJANS FILIP ,  VAN DEN ABEEL PETER

IPC: C07C263/10 ,  C07C263/18 ,  C07C263/20 ,  C07C265/00 ,  C08G18/70 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To obtain the subject solution which does not contain a noticable amount of coloration components at all and contain a relatively low amount of hydrolyzable chlorine by directly treating them with hydrogen at a relatively low temperature and pressure without additive temperature treatment and stress. SOLUTION: A solution containing at least one kind of isocyanate is phosgenated then treated with hydrogen before the perfect removal of the solvent. The treatment with hydrogen is carried out under the pressure of 0.5×10 -2.8×10 Pa at 70-150 deg.C in the phosgenation reagent. In a preferred embodiment, at least one of the isocyanate is an isocyanate in the group of diphenylmethane diisocyanates.

公开(公告)号：DE19736975A1

公开(公告)日：1999-03-04

申请号：DE19736975

申请日：1997-08-25

Applicant: BASF AG

Inventor： REIF MARTIN DR ,  KRAUS RUPERT DR ,  FLICK KLEMENS DR ,  SCHWAB EKKEHARD DR ,  TESCH HELMUT DR ,  BRUCHMANN BERND DR ,  SEYFERT WILFRIED DR ,  NEVEJANS FILIP ,  ABEEL PETER VAN DEN

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14 ,  C08G18/76 ,  C07C263/18 ,  C08G18/79

Abstract: Solutions containing at least an isocyanate (I) are prepared by treatment with hydrogen, without the formation of an over pressure after the phosgenation step and prior to separation of the solvent.

公开(公告)号：ES2201580T3

公开(公告)日：2004-03-16

申请号：ES99104113

申请日：1999-03-02

Applicant: BASF AG

Inventor： KOKEL NICOLAS DR ,  HABERLE KARL DR ,  KRAUS RUPERT DR

IPC: C07C267/00 ,  C07C271/10 ,  C07C271/20 ,  C07C275/00 ,  C07C275/04

Abstract: Carbodiimides which are solid at 25 degrees C, containing carbodiimide structures which are attached to non-aromatic carbon atoms, together with urethane and/or urea structures. Independent claims are also included for: (a) a process for the production of these solid carbodiimides from di-isocyanates in which the isocyanate (NCO) groups are not attached to aromatic carbon, by reaction in presence of catalysts to form the carbodiimide with cleavage of carbon dioxide, followed by reaction with compounds containing at least two NCO-reactive groups; (b) another process in which the above stages are reversed and the ratio of NCO groups to NCO-reactive groups used in the first stage is at least 2:1; (c) solid carbodiimides obtained by these processes; (d) mixtures containing compounds with ester units together with these carbodiimides; and (e) mixtures containing these carbodiimides and at least one of the following: polyurethanes with ester units and/or polycondensation products such as polyesters, e.g. polyethylene- or polybutylene- terephthalate, polyether-esters, polyester-esters, polyester-amides, polycaprolactones, unsaturated polyester resins and polyamides.

公开(公告)号：DE19711447A1

公开(公告)日：1998-09-24

申请号：DE19711447

申请日：1997-03-19

Applicant: BASF AG

Inventor： KRAUS RUPERT DR ,  REIF MARTIN DR ,  BRUCHMANN BERND DR ,  TESCH HELMUT DR

IPC: C07C263/10 ,  C07C265/14 ,  C08G18/76 ,  C07C265/12 ,  C07C263/18

Abstract: Isocyanates (I) having a light colour are produced by reacting an amine with phosgene, the amine being pre-treated with solid inorganic substances (II) containing Lewis acid and/or Bronsted acid centres prior to mixing. Also claimed is a polyurethane prepared from (I).

公开(公告)号：DE59905693D1

公开(公告)日：2003-07-03

申请号：DE59905693

申请日：1999-03-02

Applicant: BASF AG

Inventor： KOKEL NICOLAS DR ,  HAEBERLE KARL DR ,  KRAUS RUPERT DR

IPC: C07C267/00 ,  C07C271/10 ,  C07C271/20 ,  C07C275/00 ,  C07C275/04

Abstract: Carbodiimides which are solid at 25 degrees C, containing carbodiimide structures which are attached to non-aromatic carbon atoms, together with urethane and/or urea structures. Independent claims are also included for: (a) a process for the production of these solid carbodiimides from di-isocyanates in which the isocyanate (NCO) groups are not attached to aromatic carbon, by reaction in presence of catalysts to form the carbodiimide with cleavage of carbon dioxide, followed by reaction with compounds containing at least two NCO-reactive groups; (b) another process in which the above stages are reversed and the ratio of NCO groups to NCO-reactive groups used in the first stage is at least 2:1; (c) solid carbodiimides obtained by these processes; (d) mixtures containing compounds with ester units together with these carbodiimides; and (e) mixtures containing these carbodiimides and at least one of the following: polyurethanes with ester units and/or polycondensation products such as polyesters, e.g. polyethylene- or polybutylene- terephthalate, polyether-esters, polyester-esters, polyester-amides, polycaprolactones, unsaturated polyester resins and polyamides.

公开(公告)号：DE19628145A1

公开(公告)日：1998-01-15

申请号：DE19628145

申请日：1996-07-12

Applicant: BASF AG

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

IPC: C08G18/10 ,  C08G18/42 ,  C08G18/48 ,  C08G18/81 ,  C08J9/14 ,  C08G18/76 ,  C08G18/44 ,  C08G18/66 ,  C08G18/32 ,  C08J9/06

Abstract: Production of microcellular polyurethane elastomers comprises reacting; (A) high molecular weight polyhydroxy compounds and optionally (B) low molecular weight chain extenders and/or crosslinkers with (C) 4,4 -stilbene diisocyanate in presence or absence of (D) catalysts, foaming agents etc.

公开(公告)号：ES2199909T3

公开(公告)日：2004-03-01

申请号：ES01114057

申请日：2001-06-08

Applicant: BASF AG

Inventor： MULLER CHRISTIAN ,  SOHN MARTIN DR ,  BETTENDORF CARL ,  VAN DEN ABEEL PETER ,  PENZEL ULRICH DR ,  KRAUS RUPERT DR

IPC: C07C209/78 ,  C07C211/50

公开(公告)号：AT241595T

公开(公告)日：2003-06-15

申请号：AT99104113

申请日：1999-03-02

Applicant: BASF AG

Inventor： KOKEL NICOLAS DR ,  HAEBERLE KARL DR ,  KRAUS RUPERT DR

IPC: C07C267/00 ,  C07C271/10 ,  C07C271/20 ,  C07C275/00 ,  C07C275/04

Abstract: Carbodiimides which are solid at 25 degrees C, containing carbodiimide structures which are attached to non-aromatic carbon atoms, together with urethane and/or urea structures. Independent claims are also included for: (a) a process for the production of these solid carbodiimides from di-isocyanates in which the isocyanate (NCO) groups are not attached to aromatic carbon, by reaction in presence of catalysts to form the carbodiimide with cleavage of carbon dioxide, followed by reaction with compounds containing at least two NCO-reactive groups; (b) another process in which the above stages are reversed and the ratio of NCO groups to NCO-reactive groups used in the first stage is at least 2:1; (c) solid carbodiimides obtained by these processes; (d) mixtures containing compounds with ester units together with these carbodiimides; and (e) mixtures containing these carbodiimides and at least one of the following: polyurethanes with ester units and/or polycondensation products such as polyesters, e.g. polyethylene- or polybutylene- terephthalate, polyether-esters, polyester-esters, polyester-amides, polycaprolactones, unsaturated polyester resins and polyamides.