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公开(公告)号：JP2003181849A
公开(公告)日：2003-07-02
申请号：JP2002299015
申请日：2002-10-11
Applicant: BAYER AG
Inventor： HOFFMANN ANDREAS , NEUHAUS ALFRED , EISEN NORBERT
Abstract: PROBLEM TO BE SOLVED: To provide a simple and low-cost method for manufacturing a solid polyurethane molded product, especially a molded product with a thin wall and a complicated shape. SOLUTION: A diphenylmethane isocyanate is made to react chemically with an polyol component containing at least 30 wt.% of an amine-starting polyether polyol with a number average molecular weight of 149 to 999 g/mol and at least 25 wt.% of a polyether polyol with a number average molecular weight of 1,000 to 16,000 g/mol and maximum 80% of a primary hydroxyl group. COPYRIGHT: (C)2003,JPO
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公开(公告)号：DE10259184B3
公开(公告)日：2004-09-09
申请号：DE10259184
申请日：2002-12-18
Applicant: BAYER AG
Inventor： HAAS PETER , NEUHAUS ALFRED
Abstract: Stable polyol dispersions for polyurethane mouldings contain ester-type release agents (c1) derived from (1) 10-40C fatty acid(s), (2) optionally di- or poly-carboxylic acid(s) and (3) a polyether-polyol component with ethylene oxide and/or propylene oxide units, showing an OH number of 200-1000 (preferably 400-800) and a functionality of 2-6, preferably 2-4. Stable dispersions of polyol formulations (I) for polyurethane mouldings, comprising (a) polyether-polyol(s) with an OH number of 350-1830 mg KOH/g and a functionality of 2-8, optionally containing up to 40 wt.% (based on a and b) polyester-polyols with an OH number of 250-500 and a functionality of 2-3, (b) optionally polyether-polyols with an OH number of 15-250 and a functionality of 2-6, (c1) ester group-containing release agent(s), (c2) amide group-containing release agent(s), (d) water or water and physical blowing agents, (e) activators, (f) stabilizers and (g) other additives etc. (components c2 to g are all optional). Release agents (c1) are derived from (1) 10-40C fatty acid(s), (2) optionally di- or poly-carboxylic acid(s) and (3) polyether-polyol component(s) with ethylene oxide (EO) and/or propylene oxide (PO) groups, showing an OH number of 200-1000 (preferably 400-800) and a functionality of 2-6, preferably 2-4, up to 50 equiv% of which may be replaced by other polyols without EO or PO units. Independent claims are also included for: (1) a method for the production of (I) by mixing the components (a-g) together; (2) cellular polyurethane mouldings obtained by reacting polyisocyanates with (I); and (3) a method as described above for the production of cellular polyurethane mouldings.
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公开(公告)号：DK0803522T3
公开(公告)日：2000-05-08
申请号：DK97105876
申请日：1997-04-10
Applicant: BAYER AG
Inventor： HAAS PETER DR , NEUHAUS ALFRED , RUCKES ANDREAS DR
Abstract: Preparation of polyurethane foam mouldings by reaction injection moulding involves reacting (A1) an isocyanate prepolymer containing 15-31 wt.% isocyanate (NCO) groups by reacting (i) a bifunctional isocyanate component of the diphenylmethane series and (ii) a polyol component with an average molecular weight of 62-1000 and functionality of 2.0 and (A2) a bifunctional isocyanate component of the diphenylmethane series with an NCO content of 28-33.6%, (B1) polyol component(s) with a functionality of 2-6 and average molecular weight of 2000-10000, (B2) polyol component(s) with a functionality of 3-8, preferably 4-6 and average molecular weight of 92-1999, (C) water and optionally organic blowing agent, (D) stabiliser and (E) known ancillaries and additives. The novel features are that (F) alkali carboxylates are used as activators with (G) compounds containing acid groups, with an acid number of 20-1000, preferably 20-500; and the polyol component (B2) contains tertiary nitrogen atom(s).
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公开(公告)号：ES2142118T3
公开(公告)日：2000-04-01
申请号：ES97105876
申请日：1997-04-10
Applicant: BAYER AG
Inventor： HAAS PETER DR , NEUHAUS ALFRED , RUCKES ANDREAS DR
Abstract: Preparation of polyurethane foam mouldings by reaction injection moulding involves reacting (A1) an isocyanate prepolymer containing 15-31 wt.% isocyanate (NCO) groups by reacting (i) a bifunctional isocyanate component of the diphenylmethane series and (ii) a polyol component with an average molecular weight of 62-1000 and functionality of 2.0 and (A2) a bifunctional isocyanate component of the diphenylmethane series with an NCO content of 28-33.6%, (B1) polyol component(s) with a functionality of 2-6 and average molecular weight of 2000-10000, (B2) polyol component(s) with a functionality of 3-8, preferably 4-6 and average molecular weight of 92-1999, (C) water and optionally organic blowing agent, (D) stabiliser and (E) known ancillaries and additives. The novel features are that (F) alkali carboxylates are used as activators with (G) compounds containing acid groups, with an acid number of 20-1000, preferably 20-500; and the polyol component (B2) contains tertiary nitrogen atom(s).
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公开(公告)号：AT188226T
公开(公告)日：2000-01-15
申请号：AT97105876
申请日：1997-04-10
Applicant: BAYER AG
Inventor： HAAS PETER DR , NEUHAUS ALFRED , RUCKES ANDREAS DR
Abstract: Preparation of polyurethane foam mouldings by reaction injection moulding involves reacting (A1) an isocyanate prepolymer containing 15-31 wt.% isocyanate (NCO) groups by reacting (i) a bifunctional isocyanate component of the diphenylmethane series and (ii) a polyol component with an average molecular weight of 62-1000 and functionality of 2.0 and (A2) a bifunctional isocyanate component of the diphenylmethane series with an NCO content of 28-33.6%, (B1) polyol component(s) with a functionality of 2-6 and average molecular weight of 2000-10000, (B2) polyol component(s) with a functionality of 3-8, preferably 4-6 and average molecular weight of 92-1999, (C) water and optionally organic blowing agent, (D) stabiliser and (E) known ancillaries and additives. The novel features are that (F) alkali carboxylates are used as activators with (G) compounds containing acid groups, with an acid number of 20-1000, preferably 20-500; and the polyol component (B2) contains tertiary nitrogen atom(s).
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Patent Agency Ranking
公开(公告)号：DE59402863D1
公开(公告)日：1997-07-03
申请号：DE59402863
申请日：1994-02-24
Applicant: BAYER AG
Inventor： NEUHAUS ALFRED , HAAS PETER DR , DANESHVAR MAJID DR
Abstract: The invention relates to a process for the production of moulded articles (mouldings) having a density of at least 150 kg/m from polyurethane foams having a compact surface by foam moulding of a polyurethane-forming starting mixture, where the blowing agent used is a compound of the formula I HOOC-R-COOH I where R is a CH2 group or a CH=CH group, and/or of the formula II where R and R , independently of one another, are hydrogen or alkyl radicals having 1 to 6 carbon atoms, some of whose hydrogen atoms may be substituted by OH groups.
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公开(公告)号：DE59107398D1
公开(公告)日：1996-03-28
申请号：DE59107398
申请日：1991-04-03
Applicant: BAYER AG
Inventor： NEUHAUS ALFRED , AVAR GEZA DR , LUCKAS BRUNO , PILGER FRIEDHELM DR
IPC: B29C39/00 , B29K75/00 , B29K105/04 , C08G18/30 , C08G18/32 , C08G18/48 , C08G18/76 , C08G101/00 , C08J9/02 , C08J9/12
Abstract: A process for the production of mouldings having a density of at least 120 kg/m from polyurethane foams having a compact surface by foam-moulding a reaction mixture comprising a) a polyisocyanate component, b) a reactive component containing groups which are reactive towards isocyanate groups, c) blowing agents and optionally d) further assistants and additives, where the blowing agents c) used are salts containing water of crystallisation, optionally in addition to further chemical or physical blowing agents, and the mouldings obtained by this process.
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公开(公告)号：DE4307384A1
公开(公告)日：1994-09-15
申请号：DE4307384
申请日：1993-03-09
Applicant: BAYER AG
Inventor： NEUHAUS ALFRED , HAAS PETER DR , DANESHVAR MAJID DR
IPC: C08G18/34 , C08G18/67 , C08J9/08 , C08L75/04 , C08J9/34 , C08K5/09 , C08K3/36 , C08K3/34 , C08G18/08
Abstract: The invention relates to a process for the production of moulded articles (mouldings) having a density of at least 150 kg/m from polyurethane foams having a compact surface by foam moulding of a polyurethane-forming starting mixture, where the blowing agent used is a compound of the formula I HOOC-R-COOH I where R is a CH2 group or a CH=CH group, and/or of the formula II where R and R , independently of one another, are hydrogen or alkyl radicals having 1 to 6 carbon atoms, some of whose hydrogen atoms may be substituted by OH groups.
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公开(公告)号：CA2100438A1
公开(公告)日：1994-01-18
申请号：CA2100438
申请日：1993-07-13
Applicant: BAYER AG
Inventor： KNIPP ULRICH , VON BONIN WULF , NEUHAUS ALFRED
IPC: C08G18/28 , C08G18/48 , C08G18/65 , C08G18/66 , C08K5/06 , C08K5/17 , C08K5/20 , C08K5/205 , C08K13/00 , C08L71/02 , C08K5/00 , C08L75/04
Abstract: STORABLE POLYOL MIXTURES CONTAINING MOLD RELEASE AGENTS Polyol mixtures containing a mixture of internal mold release agents which are storage stable are made up of (a) from about 55 to about 95% by weight of a polyol mixture of (1) 30-70% by weight of at least one polyol with an OH value of more than 700 and (2) from about 30 to about 70% by weight of at least one polyol with an OH value of 700 or less than 700 and (b) from about 5 to about 45% by weight of a mixture of internal mold release agents made up of (1) from about 60 to about 95% by weight of at least one salt-like release agent and (2) from about 5 to about 40% by weight of at least one non-salt-like release agent containing an amide NH function or a urethane NH function. Known auxiliaries and additives may optionally be included. These polyol mixtures are useful in the production of rigid, semirigid and flexible polyurethane materials, particularly molded polyurethanes.
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公开(公告)号：AT97681T
公开(公告)日：1993-12-15
申请号：AT90119315
申请日：1990-10-09
Applicant: BAYER AG
Inventor： NEUHAUS ALFRED , KOPP RICHARD DR , PILGER FRIEDHELM DR , AVAR GEZA DR
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