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| Number | Title | Issue Date |
| 8222311 | Hydroxyalkylated polyalkylenepolyamine composition, method of producing the same and their use in polyurethanes Disclosed is a novel hydroxyalkylated polyalkylene polyamine composition, and a method for preparing the hydroxyalkylated polyalkylene polyamine composition at low cost. Further disclosed is a method for producing a polyurethane resin by using the hydroxyalkylated p... | 07/17/2012 |
| 7361695 | Process to manufacture flexible polyurethane foams The present invention is to the production of flexible polyurethane foam in the absence of an amine catalyst. The reactivity of the foam forming system can be controlled by the addition of an autocatalytic polyol containing a tertiary amine where the amount of autoc... | 04/22/2008 |
| 7335400 | Irreversible immobilization of enzymes into polyurethane coatings A method of irreversibly immobilizing an enzyme in a polyurethane and an enzyme-containing polyurethane having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethanes in the presence of enzyme has enabled the irrever... | 02/26/2008 |
| 7300961 | Polyol compositions useful for preparing dimensionally stable, low density water-blown rigid foams and the processes related thereto The present invention relates to polyol compositions which can be used to produce dimensionally stable, low density water-blown rigid foams which have acceptable compressive strengths and acceptable k-factors. In one embodiment of the present invention, the polyol c... | 11/27/2007 |
| 7238730 | Viscoelastic polyurethane foam The subject invention provides a viscoelastic polyurethane foam being flame retardant and having a density of greater than two and a half pounds per cubic foot that comprises a reaction product of an isocyanate component, an isocyanate-reactive blend, and a chain ex... | 07/03/2007 |
| 7223801 | Joint fill composition and method A composition and method for protecting pipeline joints is disclosed. A mold covers the exposed pipeline joint. A reaction composition including a polyol, an isocyanate, and an ester, preferably 2,2,4-trimethyl-1,2-pentanediol diisobutyrate, is added to the mold and... | 05/29/2007 |
| 7199168 | Process for making cellular composites using polymeric isocyanates as binders for hollow filler particles The present invention relates to a process for the production of a cellular composite, and to the resultant cellular composites. This process comprising (A) preparing a mixture of a polyisocyanate, water, and, optionally, one or more additives; (B) adding this mixtu... | 04/03/2007 |
| 7183331 | Method for producing a rigid polyurethane foam A method for producing a rigid polyurethane foam, which comprises reacting a polyol with a polyisocyanate in the presence of an amine catalyst and a blowing agent, wherein as the amine catalyst, at least one amine compound having at least one type of substituent sel... | 02/27/2007 |
| 7160930 | Water blown polyurethane spray foam system A composition and a method for producing primarily water blown polyurethane foams is provided. The composition uses isocyanate ratios greater than conventional foam system to provide a water blown polyurethane foam suitable for a wide variety of applications includi... | 01/09/2007 |
| 7141613 | Flame resistant rigid foams and formulations for the production thereof The invention relates to flame resistant rigid foams and formulations useful for the production thereof. The polyol formulation must include at least one substance which is inert with respect to isocyanates, does not deplete the ozone layer and has a boiling point b... | 11/28/2006 |
| 7078443 | Viscoelastic foam layer and composition A viscoelastic foam is provided having an amine-based polyol system to impart strength, recoverability and endurance to the foam, and an appropriately selected trifunctional non-amine-based polyol system to provide flexibility to the foam. The combination of amine-b... | 07/18/2006 |
| 7078442 | Method of consolidating sand or gravel into a solid mass A composition and method for consolidating aggregate material is disclosed. The method includes introducing a reaction composition into the aggregate material and allowing it to reach on form a polymer which binds the aggregate together. The composition includes pol... | 07/18/2006 |
| 7067081 | Method of making a golf ball product from fast-curling reaction injection molded polyurethane Golf ball products are made by reaction injection molding (RIM) fast curing thermoset polyurethane compounds. A polyurethane prepolymer and a curing agent are mixed and injected at low temperature and pressure into a closed mold where the reaction mixture gels. The ... | 06/27/2006 |
| 7056958 | Methods of production of high-strength black polyurethane foams Black polyurethane foams that exhibit higher strength black colorations without the need for concomitant increases in black colorants therein are provided. Such a resultant jetter black foam article is possible through the unexpectedly effective introduction of smal... | 06/06/2006 |
| 7008974 | Composition for preparing rigid polyurethane foam having good demolding property Disclosed is a composition for preparing a rigid polyurethane foam having a good demolding property by defining polyol component and catalyst component. The polyol component comprises 40˜60 wt. % of polyol obtained by polymerization with an organic oxide using sorb... | 03/07/2006 |
| 6890966 | Process for the production of a lightweight cold urethane In a process for the production of a lightweight cold urethane wherein raw materials are injected into a mold in one shot, diethanolamine is added in an amount of 0.1 to 2.0 parts by weight per 100 parts by weight of the polyol. When principal raw materials includin... | 05/10/2005 |
| 6833434 | Noctilucent polyurethane chips and methods of manufacturing the same The present invention provides noctilucent polyurethane chips and a method of manufacturing the same, which provide pedestrians and drivers or bicycle riders with clear sights even at night or while raining, thus significantly reducing the danger of accidents. Also,... | 12/21/2004 |
| 6818675 | Process for preparing polyurethane foam A process for preparing a polyurethane foam is provided which comprises reacting a polyisocyanate and an active hydrogen-containing component, including water and an organic polyol, in the presence of a catalytically effective amount of a delayed action amine cataly... | 11/16/2004 |
| 6777456 | Method for producing a rigid polyurethane foam A method for producing a rigid polyurethane foam, which comprises reacting a polyol with a polyisocyanate in the presence of an amine catalyst and a blowing agent, wherein as the amine catalyst, at least one amine compound having at least one type of substituent sel... | 08/17/2004 |
| 6767929 | Process for producing polyurethane A catalyst for producing a polyurethane, comprising a dialkylaminoalkyl alcohol represented by the formula (I): R1R2N—X—OH (I) wherein each of R1 and R2 is independently an alkyl g... | 07/27/2004 |
| 6762213 | Buffer polymers, co-immobile buffer and enzyme polymers and methods of synthesis thereof A polyurethane polymer includes at least one buffer selected to adjust pH to a pH within a desired range. The buffer compound is immobilized within the polymer, and the polymer has a buffer capacity in excess of 3 micromoles of acid or base per gram polymer. A polym... | 07/13/2004 |
| 6762274 | Low emission polyurethane polymers made with autocatalytic polyols The present invention discloses a process for producing a polyurethane product with autocatalytic polyols. These auto-catalytic polyols are based on an initiator of the formula (I): HmA-(CH2)n—N(R)-(CH2)p-AH | 07/13/2004 |
| 6740686 | Process for the manufacture of polyurethane foam, amine polyesterpolyol used in this process and foam obtained The invention concerns a method for making a polyurethane foam by reacting at least a polyester polyol with at least a polyisocyanate in the presence of a foaming agent and a catalytic agent, such a polyester polyol having been previously obtained by reacting a reac... | 05/25/2004 |
| 6723819 | Catalyst for production of a polyurethane resin and method for producing a polyurethane resin Polyurethane resins are produced by reacting a polyol with a polyisocyanate in the presence of an amine catalyst of one of the formulae: ... | 04/20/2004 |
| 6600001 | Alkylamino oxamides as low odor, non-fugitive catalysts for the production of polyurethanes A process for the synthesis of polyurethanes is disclosed wherein the process comprises reacting polyurethane-forming reactants in the presence of an effective amount of a catalyst comprising at least one alkylamino oxainide of the structure: ##STR1#... | 07/29/2003 |
| 6599952 | Polyether polyols with increased functionality This invention relates to a process for the preparation an epoxide-reactive compound having a functionality of at least 3, a molecular weight of from about 250 to about 1,900, and an OH number of from about 85 to about 1,400. This process comprises reacti... | 07/29/2003 |
| 6548564 | Polyether polyols with increased functionality This invention relates to a process for the preparation of a polyether polyol having a functionality of at least about 3, a molecular weight of from about 560 to about 35,000 and an OH number of from about 10 to about 1,100. This process comprises reactin... | 04/15/2003 |
| 6534555 | Catalyst systems for polyurethane polyester foams Provided are catalyst systems which produce flexible polyurethane polyester foams that are color stable, are lower in odor, and uses less catalysts than current most commonly practiced technology. The use of lower amounts of catalysts with low vapor press... | 03/18/2003 |
| 6495722 | Mannich polyols for rigid spray foams Provided herein are polyurethane foams which may be prepared by spray techniques. The foams of the invention are prepared using conventional isocyanates and a novel Mannich condensate polyol having a hydroxy number in the range of 250-340 and a viscosity ... | 12/17/2002 |
| 6472448 | Halogen-free, flame-retardant rigid polyurethane foam and a process for its production The invention relates to a halogen-free, flame-retardant rigid polyurethane foam, wherein a combination of oxalkylated alkylphosphonic acids and ammonium polyphosphate is present as flame retardant, and to a process for its production. The invention also ... | 10/29/2002 |
| 6458860 | Advances in urethane foam catalysis Provided herein are catalyst systems useful for providing polyurethane foam products which exhibit low fogging characteristics while possessing favorable overall physical properties when used as interior components of automobiles and other motorized vehic... | 10/01/2002 |
| 6433032 | Process for rigid polyurethane foams Process for the preparation of open celled rigid polyurethane or urethane-modified polyisocyanurate foams by reaction of a polyfunctional isocyanate-reactive composition with a polyisocyanate composition comprising a prepolymer of NCO-value 21-30% based o... | 08/13/2002 |
| 6410608 | Process for producing polyurethane foam A process for producing a polyurethane foam comprising reacting a polyol component with an isocyanate component in the presence of a catalyst comprising a compound represented by the formula (I): ##STR1## wherein p is an integer of 4 to 8, and a compound ... | 06/25/2002 |
| 6387972 | Process to enhance polyurethane foam performance An improved process to enhance polyurethane foam performance is described. Polyurethane foam is prepared by reactions between a polyisocyanate and a polyfunctional isocyanate-reactive component wherein said reactions are conducted in the presence of catal... | 05/14/2002 |
| 6306920 | Method for producing closed-cell rigid polyurethane foams having low thermal conductivity Closed cell rigid polyurethane foams are produced by reacting a) a polyol component with b) a polyisocyanate having an NCO content of from about 20 to about 48% by weight. The polyol component a) includes: 1) from 40 to 80% by weight, based on the total w... | 10/23/2001 |
| 6274639 | High build polyurethane coating An improved durable, low density, high build polyurethane coating is disclosed, as well as its method of manufacture. A slow reacting polyisocyanate is combined with a polyol so as to form a uniform mixture with an extremely long pot life. The low viscosi... | 08/14/2001 |
| 6248801 | Tertiary amine-containing active methylene compounds for improving the dimensional stability of polyurethane foam A method for making flexible polyurethane foam in which a polyisocyanate is reacted with a polyol in the presence of a urethane catalyst, a blowing agent, optionally a silicone surfactant cell stabilizer, and a cell opening additive. The cell opening addi... | 06/19/2001 |
| 6114402 | Modified rigid, foamable urethane composition and method A polyurethane composition to provide a rigid polyurethane foam suitable for use as a core material in a composite laminate and which polyurethane composition includes an additive compound or oligomer-prepolymer having hydroxy groups for reaction with the... | 09/05/2000 |
| 6103776 | Phenolic amides and their use as stabilizers Phenolic amides, useful as stabilizers for organic materials such as polyols and polyurethanes, possess the general formula ##STR1## wherein n is 0 to 3, R1 is alkyl of from 1 to about 6 carbon atoms, R2 is hydrogen or alkyl of ... | 08/15/2000 |
| 6093342 | Preparation of a homogeneous, demixing-stable polyol component A homogeneous, demixing-stable polyol component comprising at least two relatively high molecular weight compounds containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extenders and/or crosslinkers and also, if desir... | 07/25/2000 |
