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公开(公告)号：JPH10273549A
公开(公告)日：1998-10-13
申请号：JP5995098
申请日：1998-03-11
Applicant: BASF AG
Inventor： KNORR GOTTFRIED DR , ROTERMUND UDO DR , BAUM EVA , SEIFERT HOLGER DR , WIEGMANN WERNER
Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a low-density rigid polyurethane foam excellent in compression strength and long-term dimensional stability and a method for using a low-density rigid polyurethane foam produced thereby. SOLUTION: In this process, a (modified) org. polyisocyantate (a) is reacted with a high-molecular compd. (b) having at least two reactive hydrogen atoms and if necessary a low-molecular chain extended and/or a cross-linker (c) in the presence of a blowing agent (d), a catalyst (e), and if necessary other auxiliaries and/or additives (f). Here, the blowing agent (d) comprises 0.1-10 wt.% cyclopentane, 0.1-6 wt.% compd. homogeneously miscible with cyclopentane and selected from among 3-4C alkanes and 3-4C alkenes, and carbon dioxide generated by the reaction of water with the isocyanate (a); and a polyether having arom. parts and nitrogen atoms is used in an amt. of 5-25 wt.% as the high mol.wt. compd. (b).
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公开(公告)号：JPH11343326A
公开(公告)日：1999-12-14
申请号：JP11250799
申请日：1999-04-20
Applicant: BASF AG
Inventor： ROTERMUND UDO DR , KNORR GOTTFRIED DR , HAYAMA YOSHIHIKO , HOLLE JOACHIM , SEIFERT HOLGER DR
Abstract: PROBLEM TO BE SOLVED: To obtain the subject foam having a reduced thermal conductivity by reacting a (modified) organic polyisocyanate with a polyhydroxyl compound, an H-functional low-molecular-weight chain extender or crosslinking agent, a blowing agent, and a catalyst in the presence of additives. SOLUTION: A rigid foam having a thermal conductivity of 0.018 W/mK or below is obtained by reacting (A) a (modified) organic polyisocyanate with (B) a polyhydroxyl compound having at least two reactive hydrogen atoms, a functionality of 2-8, and a molecular weight of 400-6,000 and represented by the formula, (e.g. a polyether polyol), 0-20 wt.%, based on component B, H-functional low-molecular-weight chain extender or crosslinking agent such as ethanolamine, a blowing agent such as cyclopentane, 0.001-5 wt.%, based on component B, catalyst such as tin laurate in the presence of additives such as a filler. In the formula, R is hydrogen, methyl, ethyl, or a 3-6C alkyl; R' is hydrogen, methyl, benzyl, or the like; (n) is 0-4; (m) is 1-3; (o) is 1-3; and X is an n-alkyl, an aralkyl, or the like.
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公开(公告)号：JPH1180539A
公开(公告)日：1999-03-26
申请号：JP18602698
申请日：1998-07-01
Applicant: BASF AG
Inventor： GLUECK GUISCARD DR , HAHN KLAUS DR , ROTERMUND UDO DR , VOLKERT OTTO
Abstract: PROBLEM TO BE SOLVED: To produce the subject foam having lowered thermal conductivity and good handleability, etc., and useful as an insulation material for composite element, etc., by adding graphite to an organic polyisocyanate, etc., and a compound having reactive hydrogen atom and reacting the mixture in the presence of a foaming agent, etc. SOLUTION: The objective foam useful for filling the hollow space of a refrigeration apparatus or a heating element is produced by reacting (A) an organic polyisocyanate and/or a modified organic polyisocyanate (e.g. diphenylmethane diisocyanate) with (B) one or more kinds of compounds having >=2 reactive hydrogen atoms (e.g. polyether polyol) in the presence of (C) a foaming agent, (D) a catalyst and optionally (E) an assistant and/or an additive. In the above reaction, preferably 1-10 wt.% (based on the whole foam) of graphite is added to the component A and/or B. Preferably, >=50% of the graphite has particle diameter of
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公开(公告)号：JPH10120754A
公开(公告)日：1998-05-12
申请号：JP25901197
申请日：1997-09-24
Applicant: BASF AG
Inventor： ROTERMUND UDO DR , HEMPEL RENATE , SEIFERT HOLGER DR , WIEGMANN WERNER
Abstract: PROBLEM TO BE SOLVED: To obtain the subject foamed material having low thermal conductivity and improved thermal strain resistance and useful for a plastic-coated pipe, etc., without using a halogenated hydrocarbon foaming agent by reacting a polyisocyanate with a specific compound under specific condition. SOLUTION: A rigid polyurethane foam is produced by reacting (A) a polyisocyanate with (B) a compound having hydrogen atom reactive with isocyanate and composed of a mixture of (i) a polyol produced by the addition reaction of ethylene oxide, etc., to hexitol (mixture) and (ii) a polyol produced by the addition reaction of ethylene oxide, etc., to an aromatic amine wherein the hexitol content in the mixture is 15-30wt.%, the amine content is 1-10wt.% and the ratio of the polyol mixture is 60-1.00 pts.wt. based on 1.00 pts.wt. of the constituent components in the presence of (C) water and optionally further (D) a physical foaming agent and (E) a catalyst, etc.
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5.发明授权
公开(公告)号：EP0904916B1
公开(公告)日：2002-01-23
申请号：EP98117894
申请日：1998-09-22
Applicant: BASF AG
Inventor： VOLKER OTTO DR , ROTERMUND UDO DR , BIEDERMANN ANJA , HEINZ MARION
CPC classification number: B29C44/105 , B29K2075/00
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Patent Agency Ranking
公开(公告)号：AT386762T
公开(公告)日：2008-03-15
申请号：AT03026095
申请日：2003-11-13
Applicant: BASF AG
Inventor： HEINZ MARION , ROTERMUND UDO DR , HUNTEMANN PETER , SCHILLING UDO
Abstract: Isocyanate adducts (I) made by reacting polyisocyanate(s) with compounds containing at least 2 NCO-reactive hydrogens, showing a crystallinity of less than 10 J/g by DSC, and an aromatics content of less than 31 wt.%, given as carbon atoms in aromatic rings. An Independent claim is also included for a method for the production of (I) by reacting (a) at least difunctional isocyanates with (b) compound(s) with at least 2 NCO-reactive H atoms in presence of (c) catalysts, in which (b) comprise (bi) polyether-polyol(s) with a functionality of more than 2.5 and a mol. wt. of more than 300 (preferably 300-1000) and (bii) polyol(s) with a functionality of 1.7-3 and a mol. wt. of more than 1000, and the reaction is carried out with an isocyanate index of less than 200.
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公开(公告)号：DK0960723T3
公开(公告)日：2004-06-01
申请号：DK99110033
申请日：1999-05-21
Applicant: BASF AG
Inventor： BIEDERMANN ANJA DR , HEMPEL RENATE , ROTERMUND UDO DR , SCHILLING UDO , SCHLEGEL KARL DR
Abstract: In a composite element comprising layers of (i) polyisocyanate poly-addition product (PU), (ii) optionally at least one plastic, (iii) a gas permeation barrier and (iv) at least one thermoplastic, layers (iii) and (iv) are bonded together by melting a layer (iiia) between them. Independent claims are also included for: (a) sandwich elements with the following layers: (iv) 1-25 mm thermoplastic, (iii) 0.1-200 micro m metal foil coated on the opposite side from (i) and (ii) with 20-500 micro m thermoplastic (iiia) which is melted to bond (iii) with (iv), (ii) optionally 5-1000 micro m plastic, (i) 0.5-80 cm PU and then layers (ii), (iii) and (iv) as above; (b) tubes with the following layers: (iv) as above and/or metal as inner tube, (i), (ii), (iii) as above and (iv) (above) as an outer tube; (c) tubes with the following layers: (iv) plastic as above and/or metal as inner tube, (iii), (ii), (i), (ii), (iii) as above and (iv) plastic (above) as an outer tube; (d) the production of composite elements by reacting isocyanates with NCO-reactive compounds in the presence of blowing agents and optionally catalysts and other additives etc. in a reaction space bounded by layers (ii) (optional), (iii) gas barrier material, (iiia) 20-500 micro m thermoplastic and (iv) 1-25 mm thermoplastic(s), so that layer (iiia) is melted by the heat of reaction and binds layers (iii) and (iv) together after cooling; and (e) composite elements obtained by (d).
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公开(公告)号：DK0832909T3
公开(公告)日：2004-06-01
申请号：DK97116522
申请日：1997-09-23
Applicant: BASF AG
Inventor： ROTERMUND UDO DR , SEIFERT HOLGER DR , HEMPEL RENATE , WIEGMANN WERNER
Abstract: A process for the production of rigid polyurethane foam with improved thermodimensional stability and reduced thermal conductivity comprises reacting (a) polyisocyanates with (b) compounds with isocyanate-reactive hydrogen atoms in presence of (c) water and optionally (d) physical blowing agents and (e) catalysts and other additives etc. 60-100 wt% of component (b) consists of a polyol mixture containing (b1) a polyol obtained by addition of ethylene oxide (EO) and/or propylene oxide (PO) to a hexitol or hexitol mixture and (b2) a polyol obtained by addition of EO and/or PO to one or more aromatic amines, such that the total hexitol content and the total amine content of the polyol mixture is 15-30 wt% and 1-10 wt% respectively.
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公开(公告)号：DE19711555A1
公开(公告)日：1998-09-24
申请号：DE19711555
申请日：1997-03-20
Applicant: BASF AG
Inventor： ROTERMUND UDO DR , MERTEN ANNE-KATHRIN , KROLLMANN NORBERT DR
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公开(公告)号：DE19639121A1
公开(公告)日：1998-03-26
申请号：DE19639121
申请日：1996-09-24
Applicant: BASF AG
Inventor： ROTERMUND UDO DR , HEMPEL RENATE , SEIFERT HOLGER DR , WIEGMANN WERNER
Abstract: A process for the production of rigid polyurethane foam with improved thermodimensional stability and reduced thermal conductivity comprises reacting (a) polyisocyanates with (b) compounds with isocyanate-reactive hydrogen atoms in presence of (c) water and optionally (d) physical blowing agents and (e) catalysts and other additives etc. 60-100 wt% of component (b) consists of a polyol mixture containing (b1) a polyol obtained by addition of ethylene oxide (EO) and/or propylene oxide (PO) to a hexitol or hexitol mixture and (b2) a polyol obtained by addition of EO and/or PO to one or more aromatic amines, such that the total hexitol content and the total amine content of the polyol mixture is 15-30 wt% and 1-10 wt% respectively.
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