公开(公告)号：ES2178338T3

公开(公告)日：2002-12-16

申请号：ES99124993

申请日：1999-12-15

Applicant: BASF AG

Inventor： HEINZ MARION ,  BIEDERMANN ANJA DR ,  ROTERMUND UDO DR ,  REICHELT MICHAEL ,  WIEGMANN WERNER

IPC: B29C44/00 ,  E04B1/80 ,  F16L59/065 ,  F25D23/06

公开(公告)号：DE59901078D1

公开(公告)日：2002-05-02

申请号：DE59901078

申请日：1999-05-10

Applicant: BASF AG

Inventor： REICHELT MICHAEL ,  ROTERMUND UDO ,  HEMPEL RENATE ,  FALKE PETER ,  VON MALOTKI PETER ,  SEIFERT HOLGER

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/50 ,  C08G18/76 ,  C09K3/10

Abstract: Prepolymers which contain isocyanate groups, have an NCO content of at least 30.0% by weight and can be prepared by reacting an isocyanate mixture consisting predominantly of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates and having a proportion of two-ring isomers of not more than 74% by weight with at least 4-functional polyols or a mixture of polyols having a mean functionality of at least 4, where the polyols or polyol mixtures have a hydroxyl number of from 200 to 1650 mg KOH/g and a number average molecular weight of less than 1100 g/mol. The present invention also provides a process for preparing these prepolymers containing isocyanate groups, provides for their use for producing polyurethanes and provides a process for producing polyurethanes by reacting at least one novel prepolymer containing isocyanate groups, if desired in admixture with further organic and/or modified organic isocyanates (a), with compounds having at least two reactive hydrogen atoms (b) in the presence of, if desired, blowing agents (c), catalysts (d) and, if desired, further auxiliaries and/or additives (e).

公开(公告)号：AU1818602A

公开(公告)日：2002-04-02

申请号：AU1818602

申请日：2001-09-19

Applicant: BASF AG

Inventor： REICHELT MICHAEL ,  ROTERMUND UDO ,  BOHME PETER

IPC: C07B63/00 ,  C08G18/38

公开(公告)号：DE59705996D1

公开(公告)日：2002-02-21

申请号：DE59705996

申请日：1997-10-09

Applicant: BASF AG

Inventor： FALKE DR ,  HENDREICH REGINA ,  REICHELT MICHAEL

IPC: C08G18/08 ,  C08G18/10 ,  C08G18/38 ,  C08G18/66 ,  C08J3/20 ,  C08K5/3492 ,  C08L75/08

Abstract: A process for the production of stable dispersions (I) of melamine in polyol components comprising high-mol. wt. compound(s) with at least two reactive hydrogens and optionally low-mol. wt. chain extenders/crosslinkers, blowing agents, catalysts, fire retardants and other additives etc.. In this process, melamine is used as fire retardant in combination with amine(s) (II) and unmodified and/or modified organic isocyanate(s) (III). Also claimed is a process for the production of fireproofed polyurethane (PU) foam, by reacting isocyanates as above with other components as above, using melamine dispersions (I) as fire retardant. Preferably the process comprises adding melamine as fire retardant, followed by amines (II) and then isocyanates (III). The polyol component contains 1-50 wt% melamine, preferably with a particle size of 1-100 microns. (II) comprise prim. and/or sec. aliphatic and/or cycloaliphatic amines, and (III) comprise aromatic isocyanates or prepolymers with NCO groups, each in amounts of 0.05-5 wt% based on the polyol component.

公开(公告)号：DE19805879A1

公开(公告)日：1999-08-19

申请号：DE19805879

申请日：1998-02-13

Applicant: BASF AG

Inventor： BAUM EVA ,  ROTERMUND UDO ,  REICHELT MICHAEL ,  JUNG LUDWIG

IPC: C08G18/66 ,  C08J9/12 ,  C08J9/30 ,  C08G18/08 ,  C08J9/00 ,  C08J9/04 ,  C08K5/54 ,  E04B1/88

Abstract: Foam stabilizers are used during production of rigid polyurethane foam which consist of alkoxylated organo-silicon compounds with a total silicon content of 5 wt.% or more and a relative weight ratio of (ethylene oxide)/(propylene oxide) (EO/PO) ≥ 70/30. A process for the production of rigid isocyanate-based foam comprises reacting: (a) optionally modified polyisocyanates, with (b) high mol.wt. compound(s) with at least two reactive hydrogen atoms, and optionally (c) low-mol.wt. chain extenders and/or crosslinkers, in presence of (d) carbon dioxide as the sole or additional blowing agent, (e) foam stabilizers, (f) catalysts, and optionally (g) other conventional additive(s). The foam stabilizers (e) comprise alkoxylated organo-silicon compounds with an Si content of 5 wt.% or more and EO/PO wt. ratio of ≥ 70/30

公开(公告)号：DE19742013A1

公开(公告)日：1999-03-25

申请号：DE19742013

申请日：1997-09-24

Applicant: BASF AG

Inventor： HEINZ MARION ,  WIEGMANN WERNER ,  ROTERMUND UDO DR ,  BIEDERMANN ANJA DR ,  REICHELT MICHAEL

IPC: C08J9/02 ,  C08G18/28 ,  C08G18/48 ,  C08G18/66 ,  C08G101/00 ,  C08J9/14 ,  C08G18/36 ,  C08G18/42 ,  C08G18/79 ,  F25D23/06 ,  F16L59/00

Abstract: In a process for producing open-celled rigid foams by reacting a) polyisocyanates with b) compounds containing hydrogen atoms which are reactive toward isocyanates, in the presence of c) water, d) if desired, organic compounds acting as physical blowing agents, e) catalysts, auxiliaries and/or additives, the compounds containing reactive hydrogen atoms used are substances having the structure I: is 0-1 q is 0-15 r is 0-1 s is 0-15 t is 0-1 u is 0-10 v is 0-15 x is 1-5 y is 1-4 or mixtures of 1-3 where r+n NOTEQUAL 0 z is 0-3 zi is 0.1-3 R1 is an aliphatic structure without OH groups based on the structure of polyhydric alcohols, preferably ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol and dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, 1,3-butanediol, trimethylolpropane, trimethylolethane, glycerol, pentaerythritol, where these substances can also be used in the esterification as any mixture among one another and R1 can therefore also be a mixture of the corresponding structures, R2 is the radical of a polycarboxylic acid without COOH groups, eg. adipic acid, terephthalic acid, o-phthalic acid, R3 is an alcohol radical like R1.

公开(公告)号：DE19709867A1

公开(公告)日：1998-09-17

申请号：DE19709867

申请日：1997-03-11

Applicant: BASF AG

Inventor： HENSIEK RAINER ,  MALOTKI PETER VON DR ,  REICHELT MICHAEL ,  ROTERMUND UDO DR

IPC: C08G18/66 ,  C08J9/14 ,  C08L75/06 ,  C08L75/08 ,  C08L75/12 ,  C08K5/01 ,  C08G18/40 ,  C08G18/65 ,  C09K21/14 ,  F16L59/14 ,  E04B1/74

Abstract: The production of flameproofed rigid isocyanate-based foam (I) by reacting (a) polyisocyanates and/or modified polyisocyanates with (b) high-mol. wt. compound(s) with at least two reactive hydrogens and optionally (c) low-mol. wt. chain-extenders and/or crosslinkers in presence of (d) fire retardants, (e) water, (f) blowing agents and (g) other additives etc. Component (f) consists of a mixture of (f-1) at least one liquid (at room temperature) hydrocarbon with 5 or more carbon atoms and (f-2) at least one gaseous hydrocarbon with 4 carbon atoms or fewer. Also claimed is a blowing agent mixture for the production of (I), consisting of mixture (f) as above and the carbon dioxide from the isocyanate/water reaction.

公开(公告)号：DE19647296A1

公开(公告)日：1998-05-20

申请号：DE19647296

申请日：1996-11-15

Applicant: BASF AG

Inventor： REICHELT MICHAEL ,  HEINZ MARION ,  ROTERMUND UDO DR ,  HEMPEL RENATE ,  HENSIEK RAINER ,  SEIFERT HOLGER DR

IPC: C07C263/18 ,  C08G18/24 ,  C08G18/70 ,  C08G18/40 ,  C08G18/64 ,  C08L75/04 ,  F25D23/06 ,  F16L59/00

Abstract: The invention relates to polyisocyanates containing tin in the form of compounds of quadrivalent and/or bivalent tin in a quantity ranging from 0.1 to 20 ppm tin with respect to the mass of the polyisocyanate, the polyurethane and/or the polyisocyanurate. The invention further relates to the method for preparing said polyisocyanates and their use.

公开(公告)号：DE19634886A1

公开(公告)日：1998-03-05

申请号：DE19634886

申请日：1996-08-29

Applicant: BASF AG

Inventor： REICHELT MICHAEL ,  HEMSIEK RAINER

IPC: C08J9/12 ,  C07D233/56 ,  C08G18/28 ,  C08G18/48 ,  C08G18/65 ,  C08G101/00 ,  C08J9/14 ,  C08K5/09 ,  C08K5/3445 ,  C08L75/08 ,  C08G18/32 ,  E04B1/76

Abstract: A storage stable flame inhibitor containing polyol component (I) consists of at least a polyol and optionally other higher molecular weight compounds with at least 2 reactive hydrogen atoms and optionally low molecular weight chain extenders and/or cross-linking agents in addition to propellants, catalysts, stabilisers and optionally processing aids and/or additives whereby an imidazole of formula (1) and/or formic acid is added as a stabiliser. In (1), R1 = 1-4C alkyl, hydroxyalkyl or dimethylamino 1-4C alkyl; and R2-R4 = H and 1-4C alkyl. Also claimed is a rigid polyurethane foam (II) prepared by reaction of (I) with organic and/or modified organic polyisocyanate.

公开(公告)号：DE19528537A1

公开(公告)日：1997-02-06

申请号：DE19528537

申请日：1995-08-03

Applicant: BASF AG

Inventor： MALOTKI PETER VON DR ,  HENSIEK RAINER ,  REICHELT MICHAEL

IPC: C08G18/28 ,  C08G18/40 ,  C08G18/65 ,  C08G18/32 ,  C08G18/38 ,  C08L75/04 ,  C09K21/14 ,  C08K5/05 ,  E04B1/74 ,  B60R13/08

Abstract: A fireproofed isocyanate-based rigid foam (I) is obtd. by reacting (a) polyisocyanates and/or modified polyisocyanates with (b) cpd(s). contg. isocyanate-reactive H atoms and opt. (c) low molecular wt. chain extenders and/or crosslinkers, in presence of (d) blowing agents, (e) catalysts, (f) bromine-contg. fire retardant(s) and opt. (g) other additives, etc.. Fire retardant (f) is tribromo-neopentyl alcohol (TBNPA), and the crosslinking index of all the cpds. with NCO-reactive H atoms (including (f)) is at least 3.0. Also claimed is prodn. of the foam as above.