With Three-membered Heterocyclic Reactant Containing Two Carbon Atoms And A Hetero Atom (i.e., Nitrogen Or A Chalcogen Atom) Patents (Class 521/156)
-
Patent number: 9035012Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a copper catalyst that contains at least one copper atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.Type: GrantFiled: July 5, 2011Date of Patent: May 19, 2015Assignee: Dow Global Technologies LLCInventors: Richard Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar
-
Publication number: 20150099816Abstract: A polyurethane foam is prepared from a reaction mixture that includes specific amounts of a polyol, an aromatic isocyanate compound, a particulate poly(phenylene ether), and a blowing agent. The polyurethane foam exhibits one or more of increased compressive force deflection, increased flame retardancy, and increased rate of formation. A method of preparing the foam and articles incorporating the foam are described.Type: ApplicationFiled: October 3, 2013Publication date: April 9, 2015Inventor: Edward Norman Peters
-
Publication number: 20150087736Abstract: A polyurethane foam is prepared from a reaction mixture that includes an aromatic isocyanate compound, and blowing agent, and a polyol that itself includes a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule. Use of the poly(phenylene ether) is associated with faster formation of polyurethane, and increased compression force deflection. The polyurethane is useful for forming articles including bedding, furniture, automotive interiors, mass transportation interiors (seating, padding, instrument panels, door panels, steering wheels, armrests, and headrests), flooring underlay (foam, rebond binder), packaging, textiles, lining and gasketing applications, acoustic dampening materials, and weather stripping.Type: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Inventor: Edward Norman Peters
-
Patent number: 8927614Abstract: The invention relates to a process for producing polyurethanes by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, wherein the compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one polyether alcohol b1) which has been prepared by reaction of an aromatic amine b1a) with propylene oxide using an amine b1b) which is different from b1a) as catalyst.Type: GrantFiled: April 22, 2011Date of Patent: January 6, 2015Assignee: BASF SEInventors: Marc Fricke, Markus Schütte, Sirus Zarbakhsh, Johann Klassen
-
Publication number: 20150005404Abstract: The present invention describes cyclic amine compounds useful for catalysts for polyurethane form-forming compositions. The cyclic amine compounds of the invention provide distinct benefits for reaction compositions, methods, and polyurethane foams based on their desirable physical and catalytic properties.Type: ApplicationFiled: December 28, 2012Publication date: January 1, 2015Inventors: Dwight D. Latham, Phillip S. Athey, Stephen W. King
-
Patent number: 8841403Abstract: A catalyst system which is suitable for catalyzing the production of polyurethane systems is provided. The catalyst system contains a metal salt of a carboxylic acid to whose carbonyl carbon a hydrogen atom or a hydrocarbon radical is bound, with the proviso that the carboxylic acid does not have exclusively a single ethyl or n-propyl branch in the 2 position.Type: GrantFiled: July 14, 2010Date of Patent: September 23, 2014Assignee: Evonik Degussa GmbHInventors: Sarah Schmitz, Roland Hubel
-
Publication number: 20140234613Abstract: The invention provides a process for producing rigid polyurethane-polyisocyanurate foams using polyols having a high proportion of secondary hydroxyl end groups. The invention further relates to the rigid polyurethane-polyisocyanurate foams thus obtainable and to the use thereof in the production of composite elements from rigid polyurethane-polyisocyanurate foams and suitable outer layers. The invention further provides the composite elements thus obtainable.Type: ApplicationFiled: August 16, 2012Publication date: August 21, 2014Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Hartmut Nefzger, Jörg Hofmann, Klaus Lorenz, Stephanie Vogel, Reinhard Albers, Patrick Klasen
-
Patent number: 8741976Abstract: A process for producing porous aerogels or xerogels includes a reaction of at least one polyfunctional isocyanate with an amine component. The amine component includes at least one polyfunctional substituted aromatic amine. The reaction is in the presence of a solvent and a catalyst. Aerogels and xerogels that can be obtained in this way can be used as insulation material and in vacuum insulation panels.Type: GrantFiled: November 4, 2011Date of Patent: June 3, 2014Assignee: BASF SEInventors: Marc Fricke, Mark Elbing
-
Patent number: 8722753Abstract: A method of making a hydroxyl terminated precursor for polyurethane is disclosed. The method comprises heating a vegetable oil-polyol mixture of modified vegetable oil containing about two or more hydroxyl groups per molecule and a polyether polyol having about two or more hydroxyl groups per molecule at a temperature of at least about 25 degrees Celsius and at a pressure of about 1 atmosphere. The mixture has a hydroxyl equivalent ratio of about 1:1 vegetable oil to polyol. The method further comprises mixing for at least about 10 minutes an isocyanate containing about two or more isocyanato groups per molecule at least about 25 degrees Celsius to the vegetable oil-polyol mixture at a molar equivalent ratio of at least 2:1 vegetable oil-polyol mixture to isocyanate to react the isocyanate with the mixture to form the hydroxyl terminated precursor.Type: GrantFiled: August 21, 2007Date of Patent: May 13, 2014Assignee: Lear CorporationInventors: Thomas N. Jones, Edmund J. Madaj
-
Publication number: 20140094534Abstract: Molded elastomeric polyurethane foams suitable for use as gasketing and sealing devices for use in hot environments are disclosed. The foams are the reaction product of an aromatic polyisocyanate with an isocyanate-reactive composition that includes one or more polyether polyols, certain diol chain extenders, and certain low equivalent weight hydroxyl-containing cross-linkers. The molded foams exhibit low compression sets after being compressed and aged at elevated temperatures.Type: ApplicationFiled: May 28, 2012Publication date: April 3, 2014Inventors: Benjamin J. Buckley, Christoph Juris, Andrew M. Davies
-
Publication number: 20140024733Abstract: A polyether polyol based on renewable materials is obtained by the in situ production of a polyether from a hydroxyl group-containing vegetable oil, at least one alkylene oxide and a low molecular weight polyol having at least 2 hydroxyl groups. The polyol is produced by introducing the hydroxyl group-containing vegetable oil, a catalyst and an alkylene oxide to a reactor and initiating the alkoxylation reaction. After the alkoxylation reaction has begun but before the reaction has been 20% completed, the low molecular weight polyol having at least 2 hydroxyl groups is continuously introduced into the reactor. After the in situ made polyether polyol product having the desired molecular weight has been formed, the in situ made polyether polyol is removed from the reactor. These polyether polyols are particularly suitable for the production of flexible polyurethane foams.Type: ApplicationFiled: July 20, 2012Publication date: January 23, 2014Applicant: Bayer MaterialScience LLCInventors: Jack R. Reese, Stanley L. Hager, Micah Moore
-
Patent number: 8618337Abstract: The invention relates to a process for preparing polyether alcohols by reacting a) aromatic amines with b) alkylene oxides in the presence of c) a catalyst, wherein the alkylene oxide b) comprises at least 90% by weight, based on the weight of the component b), of propylene oxide and an amine is used as catalyst c).Type: GrantFiled: April 22, 2011Date of Patent: December 31, 2013Assignee: BASF SEInventors: Sirus Zarbakhsh, Markus Schuette, Marc Fricke
-
Publication number: 20130337208Abstract: The invention relates to foams of high thermal stability, to the production thereof from organic polyisocyanates and polyepoxides, and to the use of the foams.Type: ApplicationFiled: December 12, 2011Publication date: December 19, 2013Applicant: Bayer Intellectual Property GmbHInventors: Dirk Wegener, Stephan Reiter, Harald Rasselnberg, Marcel Schornstein, Hans-Detlef Arntz, Dirk Brüning
-
Publication number: 20130274363Abstract: A method for making hydrophilic polyurethane foam includes providing methylene diphenyl diisocyanate, mixing polyether polyols with the methylene diphenyl diisocyanate, and allowing the methylene diphenyl diisocyanate and the polyether polyols to form the hydrophilic polyurethane foam. The hydrophilic polyurethane foam has a content of ethylene oxide that is between about 30-100% by weight. The methylene diphenyl diisocyanate and polyols are mixed in a one-stage process. The hydrophilic polyurethane foam absorbs water in time period that is less than about 30 seconds.Type: ApplicationFiled: April 11, 2013Publication date: October 17, 2013Inventor: Fuminori Horio
-
Publication number: 20130253084Abstract: Polyurethane elastomers are formed by curing a reaction mixture containing at least one polyisocyanate at least one polyol, an aliphatic diol chain extender and a small amount of a secondary amino compound that may have none or one or more hydroxyl groups. The reaction is catalyzed with a metal catalyst. In certain embodiments, the catalyst is an organozirconium, organotitanium or tertiary amine-based catalyst. The presence of the secondary amine compound in those cases provides for a good surface appearance and good physical properties.Type: ApplicationFiled: November 16, 2011Publication date: September 26, 2013Inventors: Rajat Duggal, Nathan Wilmot, Richard Keaton, Alan K. Schrock
-
Patent number: 8465669Abstract: To obtain a non-particle-aggregation-type organic polymer monolith separation medium, there is provided a monolith separation medium comprising a skeletal phase and pores being continuous in the form of three-dimensional network, which skeletal phase on its surface has a functional group permitting introduction of a new functional group. The skeletal phase has a non-particle-aggregation-type co-continuous structure having an average diameter of submicron to micrometer size, and is constituted of an addition polymer from an epoxy compound of bi- or higher functionality and an amine compound of bi- or higher functionality. Further, the skeletal phase is enriched in organic matter and does not contain any carbon atoms derived from aromatic series.Type: GrantFiled: August 3, 2011Date of Patent: June 18, 2013Assignee: Shimadzu CorporationInventor: Ken Hosoya
-
Publication number: 20130059934Abstract: A polyurethane foam and a resin composition that may be used to form the polyurethane foam are provided. The resin composition includes a first polyol based upon ethylene diamine and having about 100% ethylene oxide capping and present in an amount of from about 0.3 to about 15 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent having at least 4 carbon atoms. The polyurethane foam includes the reaction product of an isocyanate component and the resin composition comprising the first and second polyol, in the presence of the physical blowing agent. A method of forming the polyurethane foam on a substrate combines the isocyanate component and the resin composition to form a reaction mixture. The reaction mixture is applied onto the substrate to form the polyurethane foam.Type: ApplicationFiled: September 5, 2012Publication date: March 7, 2013Inventors: Kevin Burgess, Greg Gardin, Chris Janzen
-
Patent number: 8389775Abstract: The invention relates to a process for preparing polyether alcohols, which comprises the steps a) reaction of an unsaturated natural oil or fat with a mixture of carbon monoxide and hydrogen, b) reaction of the mixture from step a) with hydrogen, c) reaction of the product from step b) with an alkylene oxide in the presence of a catalyst.Type: GrantFiled: January 26, 2009Date of Patent: March 5, 2013Assignee: BASF SEInventors: Darijo Mijolovic, Andrea Haunert, Andreas Kunst, Stephan Bauer, Qiang Miao, Berend Eling
-
Publication number: 20120259029Abstract: Flexible polyurethane foams that function well in noise and vibration absorption applications are made from a mixture of polyether polyols oxides that each has a hydroxyl equivalent weight of from 1200 to 3000 and at least 70% primary hydroxyl groups. From 5 to 80% by weight of the ethylene oxide-capped polypropylene oxides are nominally difunctional, from 0.5 to 20% by weight of the ethylene oxide-capped polypropylene oxides have a nominal functionality of four or higher, and the balance of the ethylene oxide-capped polypropylene oxides, but not less than 1.5% by weight thereof, are nominally trifunctional.Type: ApplicationFiled: December 7, 2010Publication date: October 11, 2012Inventors: Helmut Stegt, Allan James, Stephen R. Burks, Jason A. Reese, David J. Honkomp
-
Publication number: 20120208912Abstract: A process for producing a flexible polyurethane foam by reacting and expansion-molding a reactive mixture containing: (A) a polyol component containing a polyoxyalkylene polyol (A1) and a polyol (A2) derived from a natural fat/oil; (X) an epoxidized natural fat/oil obtained by reacting an oxidizing agent with a natural fat/oil containing unsaturated bonds; (C) a catalyst; and (D) a blowing agent, wherein the polyoxyalkylene polyol (a1) has a hydroxy value from 5 to 30 mgKOH/g and is obtained by polymerizing propylene oxide (b1), by ring-opening addition polymerization, in the presence of an initiator and a double metal cyanide complex catalyst (a1) containing an organic ligand, and then, polymerizing ethylene oxide (b2), by ring-opening addition polymerization, in the presence of an alkali metal catalyst (a2).Type: ApplicationFiled: April 4, 2012Publication date: August 16, 2012Applicant: Asahi Glass Company, LimitedInventors: Takayuki Sasaki, Naohiro Kumagai
-
Patent number: 8236867Abstract: An embodiment of the present invention includes a method for chemically modifying inner surfaces of channels capable of further regulating characteristics of the internal environment of channels, by forming a polymer complex having a specific channel group B, the channel environmental characteristics of which are regulated by substituents A, followed by utilizing the channels of the channel group B as a reaction field to convert the substituent A to a different substituent. The method may comprise including a guest molecule in the channel of the channel group B in which the substituents A are arranged; and reacting the guest molecule with the substituent A in the channel to convert the substituent A to a substituent A?, and to arrange the substituent A? regularly directing to the inside of the channel of the channel group B or any channel of other channel groups.Type: GrantFiled: March 7, 2008Date of Patent: August 7, 2012Assignees: The University of Tokyo, Toyota Jidosha Kabushiki KaishaInventors: Makoto Fujita, Masaki Kawano, Takehide Kawamichi, Kiyoshi Nakanishi, Takahiro Kojima, Tomoki Kodama
-
Publication number: 20120071577Abstract: The invention relates to the use of 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-manitol (I), 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-glucitol (II), and/or 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-L-iditol (III).Type: ApplicationFiled: April 23, 2010Publication date: March 22, 2012Applicant: EVONIK DEGUSSA GmbHInventors: Jan Pfeffer, Martina Ortelt, Emmanouil Spyrou, Thomas Haas, Uwe Korek, Harald Schmidt, Uwe Dingerdissen
-
Publication number: 20120041089Abstract: A polyol includes the reaction product of an epoxidized oil and an organic acid. The epoxidized oil and the organic acid are reacted in the presence of a Lewis base catalyst including at least one of a phosphorous atom or a nitrogen atom. The polyol is formed by a method that includes the step of reacting the epoxidized oil with the organic acid in the presence of the Lewis base catalyst.Type: ApplicationFiled: October 25, 2011Publication date: February 16, 2012Inventors: Yeonsuk Roh, Rajesh Kumar, Cheng-Le Zhao, David Kaczan, Theodore M. Smiecinski
-
Patent number: 8114519Abstract: Derivatized solid epoxy resins of the formula (I), which are outstandingly suitable as impact modifiers; and compositions which include such derivatized solid epoxy resins and are outstandingly suitable as one-component heat-curable adhesives, and as structural foams which have a high impact resistance and high mechanical stability.Type: GrantFiled: October 24, 2007Date of Patent: February 14, 2012Assignee: Sika Technology AGInventors: Andreas Kramer, Juergen Finter
-
Publication number: 20120015103Abstract: This disclosure describes a method of making a polyurethane foam and a method of reducing NVH expected to be experienced by a substrate using the foam. When the foam is subjected to 95% relative humidity for a period of 7 days at a temperature of about 50° C., the foam absorbs an amount of water that is less than about 30% of the weight of the foam.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Inventors: Hanna Lekovic, Frank Hoefflin, Michael Anderson, Trent Shidaker, Michael Connolly, Sheila Dubs, Jinhuang Wu
-
Publication number: 20120004338Abstract: The present invention provides a method of forming a polymer, the method comprising reacting a first species comprising at least one isocyanate group with a second species comprising at least one aziridine group to form the polymer.Type: ApplicationFiled: December 18, 2009Publication date: January 5, 2012Applicant: Adbruf Ltd.Inventor: Duncan Hywel-Evans
-
Publication number: 20110275732Abstract: Flexible polyurethane foam which can be obtained by mixing a) polyisocyanates with b) at least one relatively high molecular weight compound having at least two reactive hydrogen atoms, c) hyperbranched polyethers, d) if appropriate a low molecular weight chain extender and/or crosslinker, e) a catalyst, f) blowing agents and g) if appropriate other additives.Type: ApplicationFiled: January 5, 2010Publication date: November 10, 2011Applicant: BASF SEInventors: Bernd Bruchmann, Daniel Schoenfelder, Jens Ferbitz, Andrea Eisenhardt
-
Publication number: 20110263741Abstract: A novel flexible, low resilience polyurethane foam based on a reaction product of isocyanate-reactive component with isocyanate component is disclosed. The flexible, low resilience polyurethane foam is prepared by reacting (a) an isocyanate component substantially free of aromatic isocyanates having isocyanate group attached directly to aromatic ring, (b) an isocyanate-reactive mixture, (c) catalyst, and (d) optionally, one or more substance selected from the group consisting of water, surfactant, cross-linker, and additive. The flexible, low resilience polyurethane foam produced according to the present method has an isocyanate index of from 75 to 105, a density ranging from 16 to 160 kilogram per cubic meter, and ball resilience of less than 15%.Type: ApplicationFiled: March 4, 2009Publication date: October 27, 2011Inventor: Chung Hsien Tu
-
Publication number: 20110257285Abstract: Disclosed is a thermally expandable and curable material containing: a) at least one epoxide prepolymer; b) at least one heat-activated curing agent for the prepolymer; c) at least one foaming agent; d) at least one thermoplastic polyurethane or isocyanate; e) at least one block copolymer. Said thermally expandable and curable material can be used for stiffening or reinforcing components.Type: ApplicationFiled: April 27, 2011Publication date: October 20, 2011Applicant: Henkel AG & Co., KGaAInventors: Emilie Barriau, Olaf Lammerschop, Thomas Engels, Xaver Muenz
-
Publication number: 20110160327Abstract: Thermosetting powder coating compositions, wherein the compositions comprise an epoxy-terminated oxazolidinone-isocyanurate polymer and are capable of forming a foam when applied to a substrate in a powder coating process, as well as methods of making and uses of such compositions.Type: ApplicationFiled: August 28, 2008Publication date: June 30, 2011Applicant: DOW GLOBAL TECHNOLOGIES INC.Inventors: Ernesto Occhielio, Fabio Aguirre, Liao B. Zeng-Kun
-
Publication number: 20110039966Abstract: The present invention provides a polyurethane foam, which, despite having a low specific gravity, has a hardness and an elasticity favorable for a polishing pad, and a polishing pad made using the polyurethane foam. The polyurethane foam is obtained by reacting a blend composition containing (A) polyisocyanate, (B) a polyol, (C) a chain extender with a molecular weight of equal to or smaller than 400, and (D) water, and in the blend composition, MDI is blended as a main component of the component (A) and a blending amount of the MDI is 45 to 70 parts by weight when a total weight of the respective components (A), (B), and (C) is taken as 100 parts by weight.Type: ApplicationFiled: April 21, 2009Publication date: February 17, 2011Applicants: TOYO POLYMER CO., LTD., NITTA HAAS INCORPORATEDInventors: Michiro Goto, Kazuo Takemoto, Nobuyuki Ooshima, Shin-ichi Haba, Kouichi Yoshida, Norio Kawai
-
Publication number: 20100197820Abstract: The invention provides B-sides of urethane formulations, wherein the B-sides comprise both alcohol and epoxy moieties. Also provided are urethane formulations comprising the B-side of the invention, as well as A-sides comprising isocyanate molecules.Type: ApplicationFiled: February 26, 2010Publication date: August 5, 2010Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Galen Suppes, Fu-hung Hsieh, Yuan-Chan Tu, Pimphan Kiatsimkul
-
Publication number: 20100184878Abstract: The invention relates to polyurethane foams comprising oligomeric polyols. In embodiments of the invention, the polyurethane foams comprise the reaction product of: (a) a polyisocyanate; and (b) an active-hydrogen containing composition comprising an oligomeric polyol having a hydroxyl number of about 45 to about 65 mg KOH/g, a number average hydroxyl functionality (Fn) of less than about 2.7, and about 40% weight or greater oligomers. The polyurethane foams of the invention may be slabstock foams or molded foams. Also disclosed are low odor polyols and polyurethane compositions.Type: ApplicationFiled: March 31, 2010Publication date: July 22, 2010Applicant: CARGILL, INCORPORATEDInventors: Timothy W. Abraham, Jack A. Carter, Dimitri Dounis, Jeff Malsam
-
Publication number: 20100183863Abstract: A foam is disclosed that can be cured by heat having, for example, 10 to 80 vol. % of at least one gas and a compound that can be cured by heat. The foam can include at least one polyurethane polymer and at least one curing agent that can be activated by increased temperature. Foams that can be cured are suitable as flues, sealing compounds, or for the production of coatings, and can be cured by heat for structural adhesive bonds and for lining in vehicle construction.Type: ApplicationFiled: January 19, 2010Publication date: July 22, 2010Applicant: SIKA TECHNOLOGY AGInventors: Martin LINNENBRINK, Jan Olaf Schulenburg, Michael Gutgsell
-
Publication number: 20100035041Abstract: Derivatized solid epoxy resins of the formula (I), which are outstandingly suitable as impact modifiers; and compositions which include such derivatized solid epoxy resins and are outstandingly suitable as one-component heat-curable adhesives, and as structural foams which have a high impact resistance and high mechanical stability.Type: ApplicationFiled: October 24, 2007Publication date: February 11, 2010Applicant: SIKA TECHNOLOGY AGInventors: Andreas Kramer, Juergen Finter
-
Publication number: 20090306237Abstract: A viscoelastic polyurethane foam is the reaction product of at least one natural oil derived polyol and at least one aromatic compound having an average of more than one isocyanate group. A viscoelastic polyurethane foam has an air flow of at least about 0.5 l/s, wherein the foam is formed in the substantial absence of copolymer polyol and has not (yet) been mechanically reticulated and is preferably prepared using at least one natural oil derived polyol, more preferably in an amount of at least about 20 weight percent of the polyols used. A process of preparing a viscoelastic foam, comprises steps of (A) forming a reaction mixture including at least one polyol, at least one polyisocyanate, water, at least one catalyst wherein a the polyol comprises at least one natural oil derived polyol; and (B) subjecting the reaction mixture to conditions sufficient to result in the reaction mixture to expand and cure to form a viscoelastic polyurethane foam.Type: ApplicationFiled: September 7, 2007Publication date: December 10, 2009Applicants: Dow Global Technologies Inc., Dow Brasil Sudeste Industrial Ltda.Inventors: David A. Babb, Bernard E. Obi, Robert E. O'Neill, Alvaro Pauperio-Neto
-
Publication number: 20090264547Abstract: The present invention relates to polyether polyol compositions containing renewable raw materials, a process for preparing visco-elastic polyurethane foams using such compositions, correspondingly prepared visco-elastic foam materials, and the use thereof.Type: ApplicationFiled: February 23, 2009Publication date: October 22, 2009Applicant: Bayer MaterialScience AGInventors: Bert Klesczewski, Sebastien Triouleyre, Matthaeus Gossner, Sven Meyer-Ahrens, Alice Mosbach-Rosenberger
-
Publication number: 20090156703Abstract: The present invention provides a polyurethane foam for an automobile steering wheel. More particularly, the present invention relates to polyurethane foam formed by using a predetermined amount of a polyol having various functional groups and OH values and a predetermined amount of isocyanate having a certain function, along with water as a foaming agent, thereby preventing the environmental problems caused by use of the conventional fluorine-based or pentane-based foaming agent and also improving durability such as water resistance.Type: ApplicationFiled: April 18, 2008Publication date: June 18, 2009Applicant: Hyundai Motor CompanyInventors: Seok Hwan Kim, Won Jin Seo, Joo Young Maeng, Han Sung Paik, Gi Man Kim
-
Publication number: 20090069456Abstract: Process for preparing a composition by reacting a polyisocyanate, a monoalkoxy polyoxyalkylene monoamine and water. The composition and its use in making cellular products are claimed as well.Type: ApplicationFiled: February 12, 2007Publication date: March 12, 2009Applicant: Huntsman International LLCInventors: Gerhard Jozef Bleys, Hans Godelieve Guido Verbeke
-
Publication number: 20040198856Abstract: Rigid foams are made by reacting a polyisocyanate with an isocyanate-reactive composition which includes at least one isocyanate-reactive compound, preferably, an amine-initiated polyol and more preferably, an amine-initiated polyether polyol and a second, different polyol in the presence of a blowing agent composition which includes water and a catalyst composition which includes two different blowing catalysts, preferably, pentamethyldiethylenetriamine and bis(2-dimethylamino-ethyl)ether.Type: ApplicationFiled: April 1, 2003Publication date: October 7, 2004Inventors: Kerry A. Ingold, Raymond A. Yourd
-
Patent number: 6359023Abstract: Described is an NCO-group-containing polyurethane prepolymer madefrom polyisocanyates and polyols derived from natural oils. The invention is characterized in that the polyol is obtained by transesterification in the presence of basic lithium compounds. Together with a tertiary amine used to accelerate the moisture curing, the storage stability is thus increased considerably. Up to 4.0 mmol of the lithium compound is used per kilogram of polyol, and 0.1 to 2.0% by wt. of the amine, relative to the total weight of the composition, is used as the accelerator. The polyurethane prepolymer is suitable not only for the production of adhesives but also for the production of foamed materials, in particular those dispensed from throw-away pressure vessels.Type: GrantFiled: February 10, 1998Date of Patent: March 19, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Hermann Kluth, Wolfgang Klauck, Johann Klein, Wilfried Huebner
-
Patent number: 6194478Abstract: A document feed component is presented comprising a foamed epichlorohydrin elastomer, a curing agent, and a blowing agent, wherein the document feed component has a dynamic coefficient of friction in the range of about 1.0 to about 3.0, a Shore O hardness in the range of about 2 to about 85, a compression set of less than about 12%, and a resistance to wear of less than about 0.05 g/hr. The elastomer optionally further includes activators, polymerization accelerators, and a filler material. An important feature of the present invention is that the use of a foamed epichlorohydrin elastomer does not require the use of processing aids and migratory additives.Type: GrantFiled: November 15, 1999Date of Patent: February 27, 2001Assignee: World Properties, Inc.Inventors: Debra A. Cox, William D. Smith
-
Patent number: 6087411Abstract: A document feed component is presented comprising a foamed epichlorohydrin elastomer, a curing agent, and a blowing agent. The elastomer optionally further includes activators, polymerization accelerators, and a filler material. An important feature of the present invention is that the use of a foamed epichlorohydrin elastomer in accordance with the present invention does not require the use of processing aids and migratory additives. Consequently, the document feed component of this invention has the advantage of not contaminating paper or other media with which they come into contact, even for extended periods of time, while maintaining other advantageous properties, such as a high coefficient of friction, low hardness, low compression set, and excellent resistance to ultraviolet light and ozone. The document feed component of the present invention may be shaped as a roller, wheel, belt, pad or the like.Type: GrantFiled: May 6, 1999Date of Patent: July 11, 2000Assignee: World Properties, Inc.Inventors: Debra A. Cox, William D. Smith
-
Patent number: 5914127Abstract: Methods of isolating and purifying caveolae, microdomains of GPI-anchored proteins, and membranes consisting essentially of caveolae associated with microdomains of GPI-anchored proteins from endothelial cell membranes are disclosed. The methods comprise coating a luminal surface of an endothelial cell membrane with an adherent first ionic material by perfusion from a luminal cavity adjacent to the endothelial cell membrane, forming a pellicle by contacting the first ionic material with a second ionic material, and isolating and purifying the pellicle. The pellicle is then processed to isolate the desired cellular component.Type: GrantFiled: February 17, 1998Date of Patent: June 22, 1999Assignee: Beth Israel Deaconess Medical CenterInventor: Jan E. Schnitzer
-
Patent number: 5900439Abstract: Stabilized polyurethanes comprise as stabilizers diglycidyl terephthalate and/or triglycidyl trimellitate in combination with UV filters. Corresponding stabilizer concentrates are also provided.Type: GrantFiled: August 28, 1997Date of Patent: May 4, 1999Assignee: BASF AktiengesellschaftInventors: Frank Prissok, Gunter Scholz
-
Patent number: 5824712Abstract: A polymer polyol is produced by a process comprising free radical polymerizing an addition polymerizable di-(substituted phenyl)monomer (e.g., methacrylic ester of diglycidylether of tetrabromobisphenol A) component in the presence of a polyol, wherein the monomer has at least one aromatic halogen and at least one aromatic ethylenically unsaturated substituent. The polymer polyol can also be made by copolymerizing said monomer with an additional ethylenically unsaturated monomer component such as styrene and acrylonitrile. Said polymer polyols are reacted with a polyisocyanate compound forming a flame retardant polyurethane foam.Type: GrantFiled: February 17, 1998Date of Patent: October 20, 1998Assignee: The Dow Chemical CompanyInventors: Wayne R. Willkomm, Kenneth J. Hinze, Ruben Solis
-
Patent number: 5776770Abstract: Methods of isolating and purifying caveolae, microdomains of GPI-anchored proteins, and membranes consisting essentially of caveolae associated with microdomains of GPI-anchored proteins from endothelial cell membranes are disclosed. The methods comprise coating a luminal surface of an endothelial cell membrane with an adherent first ionic material by perfusion from a luminal cavity adjacent to the endothelial cell membrane, forming a pellicle by contacting the first ionic material with a second ionic material, and isolating and purifying the pellicle. The pellicle is then processed to isolate the desired cellular component.Type: GrantFiled: January 4, 1996Date of Patent: July 7, 1998Assignee: Beth Israel Deaconess Medical CenterInventor: Jan E. Schnitzer
-
Patent number: 5681868Abstract: A pressure sensitive adhesive consisting of a polyurethane foam is used for adhering decorative parts to automobiles and other vehicles. The adhesive is characterized by high tensile strength and elongation, excellent peel strength and good thermal and mechanical stress tolerance.Type: GrantFiled: November 3, 1995Date of Patent: October 28, 1997Assignee: Norton Performance Plastics CorporationInventors: Dean A. Waldenberger, Charles A. Smith
-
Patent number: 5525681Abstract: Polyurea polymers prepared from formulations including a polyisocyanate, a polyamine and a polyepoxide can have good heat stability and good physical properties in the substantial absence of uretidine diones and isocyanurates. The polymers can be prepared in one step of admixing and heating at greater than 150.degree. C. or in a two step process by first admixing the components at less than 130.degree. C. and then postcuring the product at greater than 150.degree. C. The polyurea polymer, after postcuring, can have substantially no residual epoxy or oxazolidinone groups. These polymers were particularly useful for applications which require the exposure of the polyurea polymers to both intermittent high temperatures and high humidity. The polyurea polymers of the present invention can withstand higher temperatures than conventional polyurea polymers without blistering.Type: GrantFiled: April 13, 1995Date of Patent: June 11, 1996Assignee: The Dow Chemical CompanyInventors: Benny G. Barron, Shenghong Dai, James R. Porter
-
Patent number: 5342881Abstract: A new process for the standardization and stabilization with simultaneous increase of reactivity of organic polyisocyanates and the polyisocyanates produced by this process. A polyisocyanate is mixed with compounds having at least one epoxide group which are represented by a specified formula. This mixture is then stabilized with a silylating agent and/or alkylating agent represented by specified formula. The polyisocyanate/epoxide mixture may optionally be heated before the stabilizing agents are added. These polyisocyanates are useful in the production of polyisocyanate addition products.Type: GrantFiled: May 20, 1993Date of Patent: August 30, 1994Assignee: Bayer AktiengesellschaftInventors: Hanns-Peter Muller, Hans-Joachim Scholl, Manfred Kapps