公开(公告)号：DE102005035000A1

公开(公告)日：2007-01-25

申请号：DE102005035000

申请日：2005-07-22

Applicant: BASF AG

Inventor： WIND MICHAEL ,  FRITZ RALF ,  MURRAR IMBRIDT ,  REESE HANS-JUERGEN ,  SCHMIDT HANS ULRICH

IPC: C08G18/10

公开(公告)号：DE10350816A1

公开(公告)日：2005-06-02

申请号：DE10350816

申请日：2003-10-29

Applicant: BASF AG

Inventor： REESE HANS-JUERGEN ,  MURRAR IMBRIDT ,  WIND MICHAEL

IPC: C07C263/20 ,  C07C265/14 ,  C08G18/02 ,  C08J9/04 ,  C08L75/04 ,  C09K3/10

Abstract: Production of a low monomer-content mixture containing polymethylene polyphenylene polyisocyanates (PMDI) comprises distillative separation at evaporation temperature below 160[deg]C of a mixture containing by weight (a) 2-nuclearly-substituted (n-s) methylene diphenyl diisocyanate (MDI) (35+/- 17%); (b) 3-n-s MDI (26+/-6%); (c) 4-n-s MDI (12+/-4%); (d) 5-n-s MDI (5+/-3%); and (e) 6- and higher n-s MDI (23+/-10%).

公开(公告)号：PL369310A1

公开(公告)日：2005-04-18

申请号：PL36931002

申请日：2002-11-19

Applicant: BASF AG

Inventor： BARTZ THOMAS ,  SCHMIDT HANS ULRICH ,  TIETZE KATRIN ,  OCHSE MICHAEL ,  THIELE KAI ,  MURRAR IMBRIDT

IPC: C09K3/10 ,  C08G18/10 ,  C09D175/04 ,  C09J175/04

Abstract: The invention relates to a method for producing prepolymers containing isocyanate groups and urethane groups. The inventive method comprises the following steps a) at least one polyisocyanate having a stoichiometric deficit of at least one t compound is reacted with at least two hydrogen atoms reacting with isocyanate groups, and b) the reaction product from step a) is distilled by means of a molecular evaporator.

公开(公告)号：DE19908793A1

公开(公告)日：2000-09-07

申请号：DE19908793

申请日：1999-03-01

Applicant: BASF AG

Inventor： SANDER MICHAEL ,  MURRAR IMBRIDT ,  GUETTES BERND

IPC: C07C263/18 ,  C08G18/70 ,  C08G18/40

Abstract: An active isocyanate (I) is prepared by mixing (A) an isocyanate with (B) an unsupported phosphite having two groups with a total of 2-60 carbon atoms. Independent claims are also included for: (i) a process for the preparation of a polyurethane (II) by reaction of a compound that is reactive with an isocyanate and a component containing the active isocyanate (I); (ii) the resulting polyurethane (II); (iii) a process to hinder the change in properties of a liquid isocyanate (A), preferably solidification, coloring, cloudiness, NCO content and/or absorption extinction coefficient at 2150-1615 cm by the addition of the phosphite (B) (iv) articles containing the active isocyanate (I) and/or the polyurethane (II).

公开(公告)号：DE19824089A1

公开(公告)日：1999-12-02

申请号：DE19824089

申请日：1998-05-29

Applicant: BASF AG

Inventor： GUETTES BERND ,  SANDER MICHAEL ,  MURRAR IMBRIDT ,  WINKLER JUERGEN

IPC: C08G18/80 ,  C08L75/04 ,  C08G18/12 ,  C08G18/32 ,  C08G18/42 ,  C08G18/48 ,  C08J5/00

Abstract: New isocyanate (NCO) prepolymers (I) are obtained by reacting (a) organic isocyanates with (b) components containing H-acid compounds at 20-90 deg C, in which component (b) is a mixture of (b1) difunctional alcohol(s), (b2) trifunctional alcohol(s), (b3) stabilizer(s) and optionally (b4) polyols and reaction of (a) and (b) is carried out in vinyl monomer(s). An Independent claim is also included for the preparation of prepolymers (I) in this way.

公开(公告)号：DE10209095A1

公开(公告)日：2003-09-11

申请号：DE10209095

申请日：2002-03-01

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  OCHSE MICHAEL ,  KRASE VOLKER ,  SCHMIDT ANDREAS ,  KLOETZER MATTHIAS ,  MURRAR IMBRIDT ,  FRANZKE GISBERT

IPC: C07C29/00 ,  C07C31/12 ,  C07C263/04 ,  C07C265/14 ,  C07C263/18

Abstract: A process for the preparation of isocyanates from carbamic esters.

公开(公告)号：CA2467458A1

公开(公告)日：2003-06-05

申请号：CA2467458

申请日：2002-11-19

Applicant: BASF AG

Inventor： OCHSE MICHAEL ,  TIETZE KATRIN ,  MURRAR IMBRIDT ,  SCHMIDT HANS ULRICH ,  BARTZ THOMAS ,  THIELE KAI

IPC: C09K3/10 ,  C08G18/10 ,  C09D175/04 ,  C09J175/04 ,  B01D11/04

Abstract: The invention relates to a method for producing prepolymers containing isocyanate groups and urethane groups. The inventive method comprises the following steps a) at least one polyisocyanate having a stoichiometric defic it of at least one compound is reacted with at least two hydrogen atoms reactin g with isocyanate groups, and b) the reaction product from step a) is distille d by means of a molecular evaporator.

公开(公告)号：NO20016181L

公开(公告)日：2002-06-24

申请号：NO20016181

申请日：2001-12-18

Applicant: BASF AG

Inventor： MURRAR IMBRIDT ,  PLAUMANN HEINZ ,  WINKLER JUERGEN ,  SCHUSTER MARITA

IPC: C07C273/18 ,  C08G18/16 ,  C08G18/40 ,  C08G18/78 ,  C08G18/00

Abstract: Highly functional aromatic polyisocyanates are prepared by reacting aromatic polyisocyanates, if required as a mixture with further mono- and/or polyisocyanates, with addition of catalytic acidic substances and water, by a process wherein the aromatic polyisocyanates used comprise at least one tolylene diisocyanate and the catalytic acidic substance used is at least one alkyl and/or aralkyl phosphate, and the process is carried out in such a way that the water is added with a temperature/time gradient increase from 5 to 60°/hour and until an isocyanate modification of the starting NCO terminal groups from 1 to 80% is established. The highly functional aromatic polyisocyanates prepared by this process are used for the preparation of polyurethane foams, in particular flexible polyurethane foams.

公开(公告)号：CA2366154A1

公开(公告)日：2002-06-22

申请号：CA2366154

申请日：2001-12-21

Applicant: BASF AG

Inventor： WINKLER JURGEN ,  MURRAR IMBRIDT ,  SCHUSTER MARITA ,  PLAUMANN HEINZ

IPC: C07C273/18 ,  C08G18/16 ,  C08G18/40 ,  C08G18/78 ,  C08G18/76 ,  C08G18/06

Abstract: Highly functional aromatic polyisocyanates are prepared by reacting aromatic polyisocyanates, if required as a mixture with further mono- and/or polyisocyanates, with addition of catalytic acidic substances and water, by a process wherein the aromatic polyisocyanates used comprise at least one tolylene diisocyanate and the catalytic acidic substance used is at least one alkyl and/or aralkyl phosphate, and the process is carried out in such a way that the water is added with a temperature/time gradient increase from 5 to 60.degree./hour and until an isocyanate modification of the starting NCO terminal groups from 1 to 80% is established. The highly functional aromatic polyisocyanates prepared by this process are used for the preparation of polyurethane foams, in particular flexible polyurethane foams.

公开(公告)号：CA2467458C

公开(公告)日：2010-10-05

申请号：CA2467458

申请日：2002-11-19

Applicant: BASF AG

Inventor： BARTZ THOMAS ,  SCHMIDT HANS ULRICH ,  TIETZE KATRIN ,  OCHSE MICHAEL ,  THIELE KAI ,  MURRAR IMBRIDT

IPC: C08G18/10 ,  C09K3/10 ,  B01D11/04 ,  C09D175/04 ,  C09J175/04

Abstract: The invention relates to a method for producing prepolymers containing isocyanate groups and urethane groups. The inventive method comprises the following steps a) at least one polyisocyanate having a stoichiometric deficit of at least one compound is reacted with at least two hydrogen atoms reacting with isocyanate groups, and b) the reaction product from step a) is distilled by means of a molecular evaporator.