公开(公告)号：DE59010917D1

公开(公告)日：2001-02-22

申请号：DE59010917

申请日：1990-09-04

Applicant: BASF AG

Inventor： BRUCHMANN DR

IPC: C07D229/00 ,  C07D521/00 ,  C08G18/78 ,  C08G18/79

Abstract: Process for the preparation of uretdione-group-containing polyisocyanates by reacting monomeric aromatic diisocyanates in the presence of a catalyst, where imidazoles or benzimidazoles of the general formula I or II or their mixtures are employed as the catalyst, where R to R have the meaning given in Claim 1.

公开(公告)号：DE59802312D1

公开(公告)日：2002-01-17

申请号：DE59802312

申请日：1998-08-10

Applicant: BASF AG

Inventor： LUTTER DR ,  BRUCHMANN DR ,  WENZEL MARION ,  WAGNER KLAUS

IPC: C08G18/10 ,  C08G18/76

Abstract: The preparation of polyurethane soft foams involves using polyester polyols as the polyol component and compound containing silicon atoms and polyether chains. - The preparation of polyurethane (PU) soft foams comprises reacting polyisocyanates comprising isocyanate and urethane group-containing prepolymers from diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanates and polyether polyols with compounds with at least two active hydrogen atoms from polyester polyols in the presence of propellants, catalysts and additives and aids containing silicon atoms and polyether chains. SPECIFIC SUBSTANCES - The polyester polyols have a functionality of 2-4 and a mol. wt. of 1800-3600.

公开(公告)号：DE50205319D1

公开(公告)日：2006-01-26

申请号：DE50205319

申请日：2002-02-14

Applicant: BASF AG

Inventor： LUTTER DR ,  BRUCHMANN DR ,  WAGNER KLAUS ,  MUELLER JENS

IPC: C08G18/40 ,  C08G18/48 ,  C08G18/63

Abstract: Preparation of soft polyurethane (PU) foam (A) by reacting a polyisocyanate (I) with a block polyoxypropylene-polyoxyethylene polyol (II), having at least two isocyanate-reactive hydrogen atoms; hydroxy number 25-45 mg potassium hydroxide/g and content of terminally bound ethylene oxide units 15-17wt.% on total amount of alkylene oxide. Preparation of soft polyurethane (PU) foam (A) by reacting a polyisocyanate (I) with a block polyoxypropylene-polyoxyethylene polyol (II), having at least two isocyanate-reactive hydrogen atoms; hydroxy number 25-45 mg potassium hydroxide/g and content of terminally bound ethylene oxide units 15-17wt.% on total amount of alkylene oxide. (II) is prepared by addition of ethylene and propylene oxides to a starter molecule (III) of mean functionality 3. Independent claims are also included for: (a) (A) produced by the new method; (b) (II); and (c) polyol mixture, for preparing soft PU, that contains at least one (II).

公开(公告)号：DE50107336D1

公开(公告)日：2005-10-13

申请号：DE50107336

申请日：2001-06-07

Applicant: BASF AG

Inventor： BRUCHMANN DR ,  STIEFENHOEFER KONRAD

IPC: C08G18/32 ,  C08G18/80 ,  C08G83/00

公开(公告)号：DE50011940D1

公开(公告)日：2006-02-02

申请号：DE50011940

申请日：2000-04-28

Applicant: BASF AG

Inventor： BRUCHMANN DR ,  RENZ DR ,  LUTTER DR

IPC: C08G18/10 ,  C08G18/28 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/83

Abstract: Reactive amide-containing polymers (I). Reactive polymers of formula (I) are new L-(-Z -OCNH-A(-NHCO-Z -B-XY)n)m (I) L = polymer, free of urethane groups and with number average molecular weight at least 300, or any linear or branched sequences of two or more such polymers; A = optionally unsaturated 2-12C alkylene, cycloalkylene, 3-18C arylene or 7-18C arylenealkylene (all optionally substituted) or a heterocyclic group, or any branched or linear combination of them; Z and Z = NR, sulfur or oxygen; R = hydrogen, methyl, optionally unsaturated 2-12C alkyl, cycloalkyl, or 3-18C aryl (all optionally substituted), or any branched or linear combination of them; B = bond, methylene, or alkylene, cycloalkylene or arylene, or their combinations, as above; n = 1-20; m = 1-50; XY = a group unreactive with isocyanato groups from which the protecting group Y can be removed, under acidic, neutral or basic conditions, to produce a group containing at least two groups reactive with isocyanato . Independent claims are also included for the following: (a) method for preparing (I); (b) polymers (II) with at least two urethane or urea groups and, based on these groups, twice the number of functional groups reactive with isocyanato, produced by hydrolysis of (I); (c) polyaddition and polycondensation products prepared from (II); and (d) method for doubling the number of groups reactive with isocyanato in a urethane-free polymer.

公开(公告)号：DE50009520D1

公开(公告)日：2005-03-24

申请号：DE50009520

申请日：2000-01-20

Applicant: BASF AG

Inventor： BRUCHMANN DR ,  EHE ULRIKE ,  WINGERTER FRANK ,  STIEFENHOEFER KONRAD ,  TREULING DR

IPC: C08G18/28 ,  C08G18/00 ,  C08G18/32 ,  C08G18/70 ,  C08G83/00

Abstract: In a process for the production of dendrimeric or highly-branched polyurethanes (PU) by reacting di- and/or poly-isocyanates with NCO-reactive compounds, at least one of the reactants has functional groups with different reactivity towards the other reactant and the reaction conditions are chosen so that only certain groups react together at each stage. Independent claims are also included for dendrimeric PU and highly-branched PU obtained by this process.

公开(公告)号：DE50000856D1

公开(公告)日：2003-01-16

申请号：DE50000856

申请日：2000-04-22

Applicant: BASF AG

Inventor： BRUCHMANN DR ,  SERVAY DR ,  TREULING DR

IPC: C08G18/08 ,  C08G18/32 ,  C08G18/66 ,  C08G18/72

Abstract: Linear, unbranched oligo- and polyurethanes are prepared by reaction of a diisocyanate with compounds having two isocyanate reactive groups, of differing reactivity such that only certain functional groups react. Linear, unbranched oligo- and polyurethanes (I) are prepared by reaction of (A) 1 mole of a diisocyanate with (B) 1 mole of compounds having two isocyanate reactive groups whereby the functional groups of (A) and./or (B) have a different reactivity wit respect to the functional groups of the other reaction partners and the reaction conditions are chosen such that only certain functional groups of (A) and (B) react with each other.