公开(公告)号：JPH1045924A

公开(公告)日：1998-02-17

申请号：JP11674497

申请日：1997-05-07

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  JUNG LUDWIG ,  BRUCHMANN BERND DR ,  RENZ HANS DR

IPC: C08J5/18 ,  C08G18/32 ,  C08G18/79 ,  C08J5/04 ,  D06M15/564

Abstract: PROBLEM TO BE SOLVED: To produce a polyurethane molding in sheet form by a simple and low-cost process capable of avoiding shortcomings in the prior art. SOLUTION: This process for producing a polyurethane molding in sheet form comprises impregnating a porous sheet with a polyurethane-forming material, and forming a polyurethane by reacting the material in a molding die that can be heated while performing molding at the same time. In this process, the polyurethane-forming material used comprises a prepolymer containing a free isocyanato group and a reversibly blocked group reactive with an isocyanato group, or a group reactive with a free isocyanato group and a reversibly blocked isocyanato group.

公开(公告)号：EP0624611B1

公开(公告)日：1997-12-29

申请号：EP94106805

申请日：1994-05-02

Applicant: BASF AG

Inventor： HORN PETER DR ,  HINZ WERNER DR ,  JUNG LUDWIG

IPC: C08G18/08 ,  C08G18/00 ,  C08G18/22 ,  C08G18/30 ,  C08G18/32 ,  C08G18/48 ,  C08G18/50 ,  C08G18/65 ,  C08G18/66 ,  C08G101/00 ,  C08J9/00

CPC classification number: C08J9/0066 ,  C08G18/225 ,  C08G18/482 ,  C08G18/50 ,  C08G18/6552 ,  C08G18/6677 ,  C08G2101/0016 ,  C08G2101/0058 ,  C08G2101/0083 ,  C08J9/0023 ,  C08J2375/04

公开(公告)号：EP0790276A3

公开(公告)日：1998-05-13

申请号：EP97101676

申请日：1997-02-04

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  BRUCHMANN BERND DR ,  ILLGUTH ROLF ,  JUNG LUDWIG

IPC: B29C44/56 ,  C08J9/40

CPC classification number: C08J9/405 ,  B29C44/5618 ,  C08J2375/04

Abstract: Gegenstand der Erfindung ist ein Verfahren zur Herstellung von flächigen Polyurethanformkörpern durch Imprägnierung von porösen Flächengebilden mit einem Polyurethansystem und anschließender Umsetzung des Polyurethansystems in einer Form, dadurch gekennzeichnet, daß, das poröse Flächengebilde zunächst mit einer Polyurethan-Komponente vollständig imprägniert wird, danach mit der anderen Polyurethan-Komponente vollständig imprägniert wird und danach in einer beheizten Form durch Umsetzung der Polyurethan-Komponenten das Formteil hergestellt wird.

公开(公告)号：ES2181738T3

公开(公告)日：2003-03-01

申请号：ES95116222

申请日：1995-10-14

Applicant: BASF AG

Inventor： HORN PETER DR ,  JUNG LUDWIG ,  LARBIG HARALD DR ,  LEBKUCHER ROLF DR ,  LEHR GERHARD

IPC: C08G18/50 ,  C08G65/26

Abstract: The prodn. of polyurethane (PU) foam comprises reacting (a) polyisocyanate(s); with (b) high-mol. wt. polyol(s) with at least two reactive H atoms, comprising (B1) polyoxyalkylene-polyol(s) with an OH no. of 30-500, obtd. by alkoxylating N,N'-bis(3-aminopropyl)-ethylenediamine, tripropylene-tetramine and/or tetrapropylene-pentamine with alkene oxide(s); and opt. (c) low-mol wt. chain extenders and/or crosslinkers; in the presence of (d) blowing agents. Also claimed are polyols (b1) obtd. as above.

公开(公告)号：DE19962273A1

公开(公告)日：2001-06-28

申请号：DE19962273

申请日：1999-12-23

Applicant: BASF AG

Inventor： FALKE PETER ,  HENDREICH REGINA ,  THOM ARND ,  JUNG LUDWIG ,  REICHELT MICHAEL ,  BIEDERMANN ANJA

IPC: C08G18/38 ,  C08G18/48 ,  C08G18/76 ,  C08J9/00 ,  C08L61/28 ,  C08L75/04 ,  C08J3/20 ,  C08J9/22 ,  C08K7/00 ,  C08K13/04

Abstract: Comminuted melamine-formaldehyde condensate foam or fiber material (I) is used to produce flame-retardant hard polyurethane foams. Independent claims are also included for the following: (1) a process for producing flame-retardant hard polyurethane foams by reacting polyisocyanates with at least one compound containing at least two reactive hydrogen atoms in the presence of water or other blowing agents and other additives, in which (I) is added to the reaction mixture together with at least one flame retardant; (2) a hard polyurethane foam produced by a process as in (1).

公开(公告)号：CA2260343A1

公开(公告)日：1999-08-13

申请号：CA2260343

申请日：1999-02-11

Applicant: BASF AG

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

IPC: C08G18/66 ,  C08J9/12 ,  C08J9/30

Abstract: Rigid foams based on isocyanate are produced by reacting a) organic and/or modified organic polyisocyanates with b) at least one relatively high molecular weight compound containing at least two reactive hydrogen atoms and, if desired, c) low molecular weight chain extenders and/or crosslinkers in the presence of d) carbon dioxide as sole or additional blowing agent, e) foam stabilizers, f) catalysts and, if desired, g) further auxiliaries and/or additives, wherein at least one organosilicon compound having a relative ethylene oxide/propylene oxide weight ratio of over 70/30 is used as foam stabilizer, with the total Si content being greater than or equal to 5% by weight, based on the weight of the foam stabilizer or stabilizers used. The isocyanate-based rigid foams produced in this way can be used as insulation material.

公开(公告)号：DE4437878A1

公开(公告)日：1996-04-25

申请号：DE4437878

申请日：1994-10-22

Applicant: BASF AG

Inventor： HORN PETER DR ,  JUNG LUDWIG ,  LARBIG HARALD DR ,  LEBKUECHER ROLF DR ,  LEHR GERHARD

IPC: C08G18/50 ,  C08G65/26 ,  C08G18/48 ,  C08G18/66 ,  C08G18/08 ,  C08G18/34 ,  C08G18/36

Abstract: The prodn. of polyurethane (PU) foam comprises reacting (a) polyisocyanate(s); with (b) high-mol. wt. polyol(s) with at least two reactive H atoms, comprising (B1) polyoxyalkylene-polyol(s) with an OH no. of 30-500, obtd. by alkoxylating N,N'-bis(3-aminopropyl)-ethylenediamine, tripropylene-tetramine and/or tetrapropylene-pentamine with alkene oxide(s); and opt. (c) low-mol wt. chain extenders and/or crosslinkers; in the presence of (d) blowing agents. Also claimed are polyols (b1) obtd. as above.

公开(公告)号：DE10136134A1

公开(公告)日：2003-02-13

申请号：DE10136134

申请日：2001-07-27

Applicant: BASF AG

Inventor： BAUER STEPHAN ,  TEMPLIN MARKUS ,  JUNG LUDWIG ,  LUKAT GUNTHER

IPC: C08G18/73 ,  C08G18/78 ,  C08K3/34 ,  C08J5/10 ,  A47K1/04 ,  B32B19/00 ,  C08G18/16 ,  C08K13/02

Abstract: A shaped part including: (A): a light stable and optically transparent polyurethane having a compact surface, (B) a filler based on a stone material, and (C) organic, mineral, or metallic effect materials or a mixture of these is new. Independent claims are also included for the following: (1) A process for production of the shaped part involving: reaction of (aa) polyisocyanates with (bb) compounds reactive to isocyanates, (cc) optionally catalysts, and (dd) optionally additives, to give the above polyurethane, where the filler and/or organic mineral or metallic effect are added continuously to the reaction mixture; (2) Preparation of polyurethane A in the presence of a crosslinking catalyst devoid of butyl tin groups. This can be, for example: triethanolamine, dimethylaminoethanol, triazine compounds, triethylenediamine, organic and/or inorganic iron compounds, Zn chloride, and dialkyl tin compounds; and (3) A laminated building material obtained from the shaped part where the formed part is on a support.

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：CA2122973C

公开(公告)日：1998-05-05

申请号：CA2122973

申请日：1994-05-05

Applicant: BASF AG

Inventor： HINZ WERNER ,  JUNG LUDWIG ,  HORN PETER

IPC: C08G18/08 ,  C08G18/00 ,  C08G18/22 ,  C08G18/30 ,  C08G18/32 ,  C08G18/48 ,  C08G18/50 ,  C08G18/65 ,  C08G18/66 ,  C08G101/00 ,  C08J9/00 ,  C08G18/12 ,  C08L75/08

Abstract: A process for the preparation of polyurethane foams, preferably semirigid polyurethane foams, having an improved foam structure involves reacting: a) organic and/or modified organic polyisocyanates with b) polyhydroxyl compounds containing at least 2 reactive hydrogen atoms and c) crosslinking agents which comprise at least one polyoxyalkylene-polyol having a mean functionality of from 3 to 8 and a hydroxyl number of from 200 to 1300 ppm and a content of alkali metal ions of from 150 to 1200 ppm, in the presence of: d) blowing agents, e) if desired catalysts, f) inorganic and/or organic acids as additives and g) if desired auxiliaries.