Abstract: A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C4-C6 hydrocarbon blowing agent, and an alkylene oxide modified silicone glycol compatibilizing agent having an HLB of from about 5 to about 8 is disclosed. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties. An alkylene oxide and isocyanate modified silicone glycol compatibilizing agent is also disclosed.
Type:
Grant
Filed:
August 7, 2001
Date of Patent:
February 12, 2002
Assignee:
BASF Corporation
Inventors:
David D. Peters, Robert E. Riley, Jimmy L. Patterson, Anthony G. Schaefer
Abstract: The present invention discloses a method for the formation of a flexible slabstock polyurethane foam having substantially improved indentation force deflection and resilience characteristics while maintaining the other physical properties. The method comprises the steps of reacting a triol polyoxyalkylene polyether polyol having a plurality of internal blocks formed from oxyalkylene monomers with a plurality of terminal caps comprising ethylene oxide attached to said plurality of internal blocks, the internal blocks containing at least 80% by weight propylene oxide based on the total weight of all of the oxyalkylenes in said internal blocks and the amount of ethylene oxide in the terminal caps comprising from 5 to 25% by weight based on the total weight of the polyol, said polyol having a degree of unsaturation of less than or equal to 0.015 meq/g KOH with a polyisocyanate component in the presence of a catalyst and water as a blowing agent at a level of between 3 to 7% by weight.
Type:
Grant
Filed:
May 24, 2000
Date of Patent:
February 5, 2002
Assignee:
BASF Corporation
Inventors:
Roeland Tuinman, Thomas L. Fishback, Curtis J. Reichel
Abstract: A composition comprising at least
a phosphorus compound and
a stabilizer compound having one of the formulae I to IV
can be used for increasing the shelf life or reducing metal corrosion.
Type:
Grant
Filed:
April 12, 2000
Date of Patent:
January 15, 2002
Assignee:
BASF Aktiengesellschaft
Inventors:
Martin Klatt, Christa Hackl, Günter Scholz
Abstract: In a process for producing sound-absorbing PUR foams having an adhesive surface by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired, further compounds (c) bearing hydrogen atoms which are reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if desired, further auxiliaries and additives (f), the polyetherol mixture (b) comprises
b1) at least one bifunctional to eight-functional polyetherol based on ethylene oxide and propylene oxide and having an OH number of from 20 to 80 mg KOH/g and a proportion of primary OH groups of >50%,
b2) at least one polyetherol based on ethylene oxide and propylene oxide and/or butylene oxide and a bifunctional to eight-functional initiator and having an OH number of from 20 to 80 mg KOH/g, where the proportion of ethylene oxide in the polyetherol is >30% by weight, in amounts of from 10 to 50 parts by weight, and
b3) at least one polyetherol based on propylene o
Type:
Grant
Filed:
May 24, 2000
Date of Patent:
January 8, 2002
Assignee:
BASF Aktiengesellschaft
Inventors:
Bernd Zaschke, Kirsten Schmaler, Peter Falke
Abstract: Elastic polyurethane moldings having a compact surface and a cellular core are produced by reacting
a) 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 in the presence of
d) blowing agents,
e) catalysts and, if desired,
f) customary auxiliaries and/or additives
in a closed mold with compaction, wherein the modified organic polyisocyanate used is at least one reaction product of pure MDI and at least one polyether alcohol (polyoxyalkylene polyol), the modified organic polyisocyanate having an NCO content of <15% by weight.
Abstract: In a process for preparing polyisocyanate polyaddition products by reacting isocyanates with compounds which are reactive toward isocyanates, in the presence or absence of blowing agents, catalysts, auxiliaries and/or additives, the reaction is carried out in the presence of (i) particles which have a size of <200 &mgr;m and a melting point in a range from 50 to 300° C., or in the presence of thermoset particles (ii) or in the presence of particles (i) and (ii).
Type:
Grant
Filed:
May 6, 1999
Date of Patent:
December 11, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Dietrich Scherzer, Ulrich Treuling, Martin Kreyenschmidt, Anton Kappes, Klaus Pittrich
Abstract: The blends comprise
(a) thermoplastic polyurethane having a Shore hardness of from 60 A to 50 D and
(b) ethylene-propylene (EPM) rubbers and/or modified ethylene-propylene (EPM) rubbers,
where the weight ratio of (a):(b) is from 3:1 to 999:1.
Type:
Grant
Filed:
May 12, 1999
Date of Patent:
November 20, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Ines Brüning, Andreas Chlosta, Günter Scholz
Abstract: Carbamate solutions are obtainable by reacting at least one alkanolamine with carbon dioxide in, as solvent, at least one organic compound having a molecular weight of from 60 to 600 and containing at least one hydroxyl group, wherein the carbamate contains at least 0.
Type:
Grant
Filed:
November 12, 1999
Date of Patent:
November 13, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Peter Woo, Anke Schulze, Edmund Stadler, Dieter Tintelnot, Udo Hadick, Ralf Hinrichs, Horst Hürkamp, Klaus Sobolewski
Abstract: Sound-damping and energy-absorbing flexible PUR foams are produced by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired, further compounds (c) bearing hydrogen atoms which are reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if desired, further auxiliaries and additives (f).
Type:
Grant
Filed:
May 24, 2000
Date of Patent:
November 13, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Peter Falke, Inge Rotermund, Klaus Schmutzer, Kirsten Schmaler
Abstract: Compact and preferably cellular polyurethane elastomers are produced by reacting
a) polyhydroxyl compounds having molecular weights of from 800 to 6000 and, if desired,
b) chain extenders and/or crosslinkers having molecular weights of up to 800 [lacuna]
c) naphthylene 1,5-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 3,3′-dimethylbiphenyl diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or aliphatic diisocyanate having from 4 to 12 carbon atoms and/or cycloaliphatic diisocyanate having from 6 to 18 carbon atoms, where the formative components (a), (c) and, if used, (b) are preferably reacted by the prepolymer method,
in the presence or absence of
d) catalysts,
e) blowing agents and
f) additives. Isocyanate prepolymers suitable for this purpose are also described.
Type:
Grant
Filed:
August 21, 1998
Date of Patent:
October 30, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Manfred Genz, Walter Haselhorst, Torsten Jeschke, Ute Nichau, Heinz Bollmann, Michael Strauss, Wolfgang Scholz, Rüdiger Voelkel, Hartmut Peuker, Gerhard Hellmann
Abstract: A crystalline multimetal cyanide complex of the formula (I)
M1a[M2(CN)bL1c]d*e(M1fXg)*hL2′iH2O (I)
where
M1 is at least one element from the group consisting of Zn(II), Fe(II), Co(III), Ni(II), Mn(II), Co(II), Sn(II).
Type:
Grant
Filed:
March 29, 2000
Date of Patent:
October 16, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Georg Heinrich Grosch, Harald Larbig, Reinhard Lorenz, Dieter Junge, Eugen Gehrer, Ulrich Treuling
Abstract: A process for preparing double metal cyanide catalysts, comprising combining an aqueous solution of a metal salt of the formula M1m(X)n, with an aqueous solution of a cyanometallic acid of the formula HaM2(CN)b(A)c, where one or both aqueous solutions may comprises at least one water-miscible organic ligand selected from the group consisting of alcohols, aldehydes, ketones, ethers, polyethers, esters, ureas, amides, nitrites or sulfides, if desired, combining the aqueous suspension thus obtained with at least one water-miscible organic ligand selected from the above-mentioned group, which ligand may be identical to or different from any previously added ligand, and separating the resulting two-metal cyanide complex from the suspension.
Type:
Grant
Filed:
March 5, 1998
Date of Patent:
October 16, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Georg Heinrich Grosch, Harald Larbig, Dieter Junge, Daniella Geelen, Peter de Vocht, Gerd Hoeppner
Abstract: A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C4-C6 hydrocarbon blowing agent, and an alkylene oxide modified silicone glycol compatibilizing agent having an HLB of from about 5 to about 8 is disclosed. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties. An alkylene oxide and isocyanate modified silicone glycol compatibilizing agent is also disclosed.
Type:
Grant
Filed:
July 26, 2000
Date of Patent:
September 25, 2001
Assignee:
BASF Corporation
Inventors:
David D. Peters, Robert E. Riley, Jimmy L. Patterson, Anthony G. Schaefer
Abstract: Thermally stable rigid foams based on isocyanate can be produced by reacting
a) polyisocyanates with
b) compounds containing at least two hydrogen atoms which can react with isocyanate groups,
c) water, in the presence of
d) physically acting blowing agents, in the presence or absence of
e) catalysts and auxiliaries and/or additives, wherein the component b) comprises
bi) at least one polyether alcohol having a functionality of at least 1.5 and a hydroxyl number of from 10 to 100 mg KOH/g in an amount of from 0.2 to 80% by mass, based on b), and
bii)at least one polyester alcohol in an amount of from 5 to 90% by mass, based on b),
the water c) is present in an amount of at most 2% by mass, based on the sum of the components b) to e), and the component d) used comprises hydrocarbons and/or fluorine-containing hydrocarbons in an amount of from 5 to 30% by mass, based on the sum of the components b) to e).
Type:
Grant
Filed:
September 24, 1998
Date of Patent:
September 4, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Udo Rotermund, Renate Hempel, Holger Seifert, Werner Schmiade
Abstract: Storage-stable, blowing agent-containing halogen-free emulsions for producing rigid foams based on isocyanate comprise
a) compounds containing hydrogen atoms which are reactive toward isocyanate groups,
b) water,
c) physically acting, halogen-free blowing agents and, if desired,
d) auxiliaries and/or additives which are customary in polyurethane chemistry,
wherein the component a) comprises polyether alcohols having a functionality of greater than 1.5 and a hydroxyl number of from 10 to 100 mg KOH/g in an amount of from 0.2% by mass to 80% by mass, based on the mass of the component a), and the halogen-free, physically acting blowing agents c) used are hydrocarbons having from 3 to 10 carbon atoms.
Type:
Grant
Filed:
September 24, 1998
Date of Patent:
August 14, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Udo Rotermund, Anja Biedermann, Renate Hempel, Werner Wiegmann, Marion Heinz
Abstract: Diisocyanates of the formula (I)
where R1 is a C1-C10-hydrocarbon radical and R3 is a C1-Cl2-hydrocarbon group and n is an integer from 1 to 10, are described.
Type:
Grant
Filed:
January 21, 1999
Date of Patent:
August 14, 2001
Assignee:
BASF Aktiengesellschaft
Inventors:
Hermann Graf, Udo Rotermund, Günter Mohrhardt
Abstract: A process for producing a rigid foam based on isocyanate comprises reacting an organic and/or modified organic polyisocyanate with a polyol composition and, optionally, a relatively low molecular weight chain extender or crosslinker in the presence of a catalyst, and, optionally, further auxiliaries and/or additives, wherein the polyol composition comprises a phthalic anhydride-initiated polyester polyol, a blowing agent comprising C4-C6 hydrocarbon, and a fatty acid or fatty alcohol ethoxylate compatibilizing agent. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties.
Type:
Grant
Filed:
February 5, 1999
Date of Patent:
July 31, 2001
Assignee:
BASF Corporation
Inventors:
Joe C. Wilson, Jimmy L. Patterson, James S. Dailey, Walter R. White, III, Robert E. Riley
Abstract: The invention provides a liquid polyisocyanate prepolymer composition which is a result of combining about 50.0 to 90.0 percent by weight of an isocyanate blend (a.) having 55.0 to 75.0 weight percent 4,4′-MDI, 17.0 to 27.0 weight percent 2,4′-MDI, 1.0 to 10.0 weight percent 3-ring MDI oligomer, and 1.0 to 15.0 weight percent n-ring MDI oligomer (n greater than 3); about 5.0 to 30.0 weight percent of a polyhydroxy containing polyol (b.) having a molecular weight of from 700 to about 6,000; and about 15.0 to 75.0 weight percent of a toluene diisocyanate (c.). The resulting isocyanate prepolymer composition has a free NCO content of from about 30.0 to 45.0 weight percent and particularly desirable flow characteristics. The invention further provides a method of making an isocyanate prepolymer composition, a process of making a polyurethane foam utilizing the isocyanate prepolymer composition of the invention, and polyurethane foams produced by the disclosed process.
Type:
Grant
Filed:
March 16, 1998
Date of Patent:
July 17, 2001
Assignee:
BASF Corporation
Inventors:
Thirumurti Narayan, David J. Lovell, Alejandro Shimazaki
Abstract: The invention comprises modifying a preformed thermoplastic polyurethane product made from the reaction of a difunctional isocyanate with a polyester or a polyether diol, along with a monomeric, low molecular weight diol as a chain extender. The preformed thermoplastic polyurethane product is then cross-linked by the addition of an isocyanate prepolymer made from the reaction of an excess of a polyisocyanate with a polyester or polyether polyol. The invention further comprises a process for forming the thermoplastic polyurethane product described above utilizing a single or twin screw extruder to mix and react the ingredients.
Type:
Grant
Filed:
March 18, 1999
Date of Patent:
July 10, 2001
Assignee:
BASF Corporation
Inventors:
Armando Sardanopoli, J. Richard Stonehouse
Abstract: Thus, there is provided according to the present invention polyol compositions comprising
(A) a polytetramethylene ether glycol, and
(B) a trifunctional active hydrogen compound-initiated polyoxyalkylene polyether polyol having a degree of unsaturation of not greater than 0.04 milliequivalents per gram of said polyether polyol.
Type:
Grant
Filed:
January 17, 2000
Date of Patent:
July 3, 2001
Assignee:
BASF Corporation
Inventors:
Thomas L. Fishback, Duane A. Heyman, Curtis J. Reichel, Adam J. Jaglowski