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公开(公告)号：JPH11171959A
公开(公告)日：1999-06-29
申请号：JP27013798
申请日：1998-09-24
Applicant: BASF AG
Inventor： ROTERMUND UDO , HEMPEL RENATE , SEIFERT HOLGER DR , SCHMIADE WERNER
Abstract: PROBLEM TO BE SOLVED: To provide a rigid foam based on an isocyanate compound, using a foaming agent not causing an environment disruption, capable of being produced by a conventional technology for producing rigid foams, and provided with resistance to high temperature, low heat conductivity at high temperature and low brittleness. SOLUTION: This thermally stable rigid foam comprises (a) a polyisocyanate, (b) a polyol, (c) water in an amount of at most 2 wt.%, and (d) 5-30 wt.% of a hydrocarbon and/or a fluorinated hydrocarbon as a foaming agent. The polyol (b) comprises (bi) at least one polyetheralcohol having a functional value number of at least 1.5 and hydroxyl groups of 10-100 mgKOH/g in an amount of 0.2-80 wt.% based on the component (b) and (bii) at least one polyesterpolyalcohol in an amount of 5-90 wt.% based on the component (b).
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公开(公告)号：DE19742012A1
公开(公告)日：1999-03-25
申请号：DE19742012
申请日：1997-09-24
Applicant: BASF AG
Inventor： ROTERMUND UDO DR , HEMPEL RENATE , SEIFERT HOLGER DR , SCHMIADE WERNER
IPC: C08G18/40 , C08G18/42 , C08G18/48 , C08G18/66 , C08G18/67 , C08G101/00 , C08J9/14 , C08L75/04 , C08L75/06 , C08L75/08 , C08G18/36
Abstract: Emulsions containing polyether alcohols and polyester alcohols are used in the production of hard foams based on isocyanates to improve the temperature stability of the foams. Temperature-stable hard foams based on isocyanates are produced by reacting (a) polyisocyanates with (b) compounds with at least two hydrogen atoms reactive with isocyanate groups and (c) water in the presence of (d) propellants and optionally catalysts and auxiliary aids and additives. (b) comprises (bi) a polyether alcohol present in an amount of 0.2-80 wt.% and having a functionality of at least 1.5 and an OH number of 10-100 mg KOH/g, and (bii) a polyester alcohol present in an amount of 5-90 wt.%. (c) is present in an amount of maximum 2 wt.%. (d) contains hydrocarbons and/or hydrocarbons containing fluorine in an amount of 5-30 wt.%.
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公开(公告)号：DE59805649D1
公开(公告)日：2002-10-31
申请号：DE59805649
申请日：1998-03-06
Applicant: BASF AG
Inventor： SCHMIADE WERNER
IPC: B29C44/32 , B29C44/38 , F16L59/147
Abstract: Manufacture of tubes insulated with plastic foam takes place in a new process, in which: (a) Between an internal medium tube (for future thermal medium flow e.g. of hot water) and a parallel outer casing tube, a spacer including opening(s) is located; this moves axially and carries the tube externally; (b) foaming mixture is introduced from an opening, into the space between the tubes (note: a total of at least three tubes is involved in this stage). (b1) During introduction, the holder is moved axially; (c) On completion of filling, the mixture is converted to foam and (d) the holder, and if appropriate, the outer casing tube, is/are removed.
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公开(公告)号：DE19718018A1
公开(公告)日：1998-11-05
申请号：DE19718018
申请日：1997-04-29
Applicant: BASF AG
Inventor： NABER BERNHARD , SCHMIADE WERNER , GASSAN MICHAEL
Abstract: Rigid polyurethane foam (I) is prepared by mixing (A) polyisocyanate and (B) a compound having at least 2 hydrogen atoms that react with isocyanate groups in the presence of (C) catalyst, (D) blowing agent and optionally (E) processing aids and/or additives, whereby (B) is a recycled polyol prepared by glycolysis of a polyurethane. Preferably the recycled polyol (B) is obtained by glycolysis of rigid polyurethane foam and is produced in the presence of mono and/or difunctional glycidyl ethers. The recycled polyol is used in an amount of 10-50 wt.% (w.r.t. components (B) and (C)).
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公开(公告)号：DK0865893T3
公开(公告)日：2002-10-14
申请号：DK98103999
申请日：1998-03-06
Applicant: BASF AG
Inventor： SCHMIADE WERNER
IPC: B29C44/32 , B29C44/38 , F16L59/147
Abstract: Manufacture of tubes insulated with plastic foam takes place in a new process, in which: (a) Between an internal medium tube (for future thermal medium flow e.g. of hot water) and a parallel outer casing tube, a spacer including opening(s) is located; this moves axially and carries the tube externally; (b) foaming mixture is introduced from an opening, into the space between the tubes (note: a total of at least three tubes is involved in this stage). (b1) During introduction, the holder is moved axially; (c) On completion of filling, the mixture is converted to foam and (d) the holder, and if appropriate, the outer casing tube, is/are removed.
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Patent Agency Ranking
公开(公告)号：NO981158L
公开(公告)日：1998-09-18
申请号：NO981158
申请日：1998-03-16
Applicant: BASF AG
Inventor： SCHMIADE WERNER
IPC: B29C44/32 , B29C44/38 , F16L59/147 , B29D44/38
Abstract: Manufacture of tubes insulated with plastic foam takes place in a new process, in which: (a) Between an internal medium tube (for future thermal medium flow e.g. of hot water) and a parallel outer casing tube, a spacer including opening(s) is located; this moves axially and carries the tube externally; (b) foaming mixture is introduced from an opening, into the space between the tubes (note: a total of at least three tubes is involved in this stage). (b1) During introduction, the holder is moved axially; (c) On completion of filling, the mixture is converted to foam and (d) the holder, and if appropriate, the outer casing tube, is/are removed.
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公开(公告)号：DE59811942D1
公开(公告)日：2004-10-21
申请号：DE59811942
申请日：1998-09-23
Applicant: BASF AG
Inventor： ROTERMUND DR , HEMPEL RENATE , SEIFERT DR , SCHMIADE WERNER
Abstract: Emulsions containing polyether alcohols and polyester alcohols are used in the production of hard foams based on isocyanates to improve the temperature stability of the foams. Temperature-stable hard foams based on isocyanates are produced by reacting (a) polyisocyanates with (b) compounds with at least two hydrogen atoms reactive with isocyanate groups and (c) water in the presence of (d) propellants and optionally catalysts and auxiliary aids and additives. (b) comprises (bi) a polyether alcohol present in an amount of 0.2-80 wt.% and having a functionality of at least 1.5 and an OH number of 10-100 mg KOH/g, and (bii) a polyester alcohol present in an amount of 5-90 wt.%. (c) is present in an amount of maximum 2 wt.%. (d) contains hydrocarbons and/or hydrocarbons containing fluorine in an amount of 5-30 wt.%.
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公开(公告)号：CA2233366A1
公开(公告)日：1998-10-29
申请号：CA2233366
申请日：1998-04-28
Applicant: BASF AG
Inventor： SCHMIADE WERNER , NABER BERNHARD , GASSAN MICHAEL
Abstract: In a process for producing rigid polyurethane foams by reacting a) polyisocyanates b) compounds containing at least two hydrogen atoms capable of reacting with isocyanate groups, in the presence of c) catalysts, d) blowing agents and, if desired, e) further auxiliaries and/or additives, the component b) comprises at least one recycled polyol which is formed by glycolysis of polyurethanes.
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公开(公告)号：DE19711068A1
公开(公告)日：1998-09-24
申请号：DE19711068
申请日：1997-03-17
Applicant: BASF AG
Inventor： SCHMIADE WERNER
IPC: B29C44/32 , B29C44/38 , F16L59/147 , B29D23/00 , B29D9/00 , B32B1/08 , B32B1/10 , B29C63/00 , F16L59/14
Abstract: Manufacture of tubes insulated with plastic foam takes place in a new process, in which: (a) Between an internal medium tube (for future thermal medium flow e.g. of hot water) and a parallel outer casing tube, a spacer including opening(s) is located; this moves axially and carries the tube externally; (b) foaming mixture is introduced from an opening, into the space between the tubes (note: a total of at least three tubes is involved in this stage). (b1) During introduction, the holder is moved axially; (c) On completion of filling, the mixture is converted to foam and (d) the holder, and if appropriate, the outer casing tube, is/are removed.
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公开(公告)号：NO981158A
公开(公告)日：1998-09-18
申请号：NO981158
申请日：1998-03-16
Applicant: BASF AG
Inventor： SCHMIADE WERNER
IPC: B29C44/32 , B29C44/38 , F16L59/147 , B29D44/38
CPC classification number: B29C44/386 , F16L59/143
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