Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7205374 | Two-part polyurethane adhesive for bonding insulation boards to a roof deck A method of preparing an adhesive, the method comprising combining an isocyanate, a polyhydroxyl phenol-containing compound, a polyol, and a trimerization catalyst. ... | 04/17/2007 |
| 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 |
| 6586488 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of... | 07/01/2003 |
| 6541530 | Urethane-modified polyisocyanurate foam A urethane-modified polyisocyanurate foam obtained by reacting (A) a polyisocyanate compound component, (B) a polyol component, containing a modified phenolic resin obtained by adding 20 to 100 parts by weight of a polyhydric alcohol or its alkylene oxide... | 04/01/2003 |
| 6455605 | Foamable composition exhibiting instant thixotropic gelling The invention relates to a foamable composition comprising at least two parts. The first part comprises a polyol, a thixotropic gelling agent, a blowing agent, a urethane reaction catalyst and a isocyanurate reaction catalyst. The second part comprises at... | 09/24/2002 |
| 6423757 | Process for producing polymer foam using mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms The invention discloses novel azeotrope-like mixtures of fluorinated compounds which are useful for heating and cooling as heat transfer agents and/or refrigerants. The azeotrope-like mixture comprises: (a) pentafluoropropane; and (b) a hydrofluorocarbon ... | 07/23/2002 |
| 6156814 | Amido functional amine catalysts for the production of polyurethanes The use of 3-[3-(dimethylamino)propyl]-propionamide (Formula I) and 3,3'-{[3-(dimethylamino)propyl]imino}bis-propanamide (Formula II) as catalysts in the production of polyurethanes. ##STR1##... | 12/05/2000 |
| 6086784 | Premixes for the preparation of polyurethane or polyisocyanurate foams Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF3 --CR1 R2 --CF2 --R3 | 07/11/2000 |
| 5990184 | Polyisocyanate based aerogel Process for making polyisocyanate based aerogels by trimerisation of an organic polyisocyanate in an organic solvent in the presence of a (co)polymer containing an isocyanate-reactive group, gellation and supercritically drying of the obtained sol-gel.... | 11/23/1999 |
| 5847014 | Water blown, energy absorbing foams The present invention is directed to an isocyanate reactive mixture comprising from about 17 to about 85% by weight of one or more non-filled polyether polyols having a hydroxyl functionality of from 1.5 to 3 and molecular weights of from 1,500 to 8,000; ... | 12/08/1998 |
| 5844012 | Process and composition for improving the cure of water-blown molded polyurethane foam A method for producing water-blown molded flexible polyurethane foam which comprises reacting and foaming in one step in a mold a reaction mixture comprising a polyol, an organic polyisocyanate, a urethane catalyst composition and water and a trimerizatio... | 12/01/1998 |
| 5844014 | Compressed, extruded, evacuated open-cell polymer foams and evacuated insulation panels containing them Disclosed is a compressed, evacuated, open-cell polymer foam, the foam having an open cell content of about 70 percent or more prior to compression, the foam having a thickness of about 40 to about 90 percent of the initial thickness of the foam prior to ... | 12/01/1998 |
| 5824711 | N,N,N'-trimethylbis (Aminoethyl) ether substituted urea compostions for the production of polyurethanes A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of the compound represented by the following... | 10/20/1998 |
| 5800729 | Mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms The invention discloses novel azeotrope-like mixtures of fluorinated compounds which are useful for heating and cooling as heat transfer agents and/or refrigerants. The azeotrope-like mixture comprises: (a) pentafluoropropane; and (b) a hydrofluorocarbon ... | 09/01/1998 |
| 5760097 | Methods of preparing polymeric microbeds The present invention relates to porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead communicate with the surface of the microbead. The present inv... | 06/02/1998 |
| 5710191 | Hydroxymethyl quinuclidine catalyst compositions for making polyurethane foams A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition comprising at least one compound of either of the following formula... | 01/20/1998 |
| 5693686 | Foam-forming mixtures with decreased decomposition of hydrohalocarbon blowing agents A polyisocyanate having an acid value of at least 0.01% HCl is used to produce polyisocyanate, polyisocyanurate and polyurethane urea foams with an HCFC blowing agent. The use of such a polyisocyanate is advantageous because the polyisocyanate does not ca... | 12/02/1997 |
| 5684057 | Three component polyol blend for use in insulating rigid polyurethane foams There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least: a) an aromatic amine initiated polyoxyalkyl... | 11/04/1997 |
| 5679718 | Microcellular foams containing an infrared attenuating agent and a method of using Disclosed is an evacuated and unevacuated microcellular foam containing an infrared attenuating agent (IAA). The evacuated foam has an average cell size of about 70 micrometers or less. The unevacuated foam has an average cell size of 1.0 micrometers or l... | 10/21/1997 |
| 5677358 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons Azeotrope-like compositions of 1, 1, 1, 3, 3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparatio... | 10/14/1997 |
| 5677359 | Three component polyol blend for use in insulating rigid polyurethane foams There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least: a) an aromatic amine initiated polyoxyalkyl... | 10/14/1997 |
| 5645928 | Heat insulation panels manufactured from modified polyisocyanurate foams Heat insulation panels made from plates and the modified polyisocyanurate foams provided by a reaction of a polyisocyanate with a polyol composition mixture comprising a polyol, water, a trimerization catalyst, a carbodiimide catalyst, and an aromatic com... | 07/08/1997 |
| 5646196 | C3 to C5 polyfluorcalkanes propellants Polyfluoroalkanes are used as propellants in sprayable compositions or in the the preparation of plastic foams and in the electrical industry as cleansing and degreasing agents.... | 07/08/1997 |
| 5627220 | Process of the preparation of modified polyisocyanurate foams for heat insulation materials A process of the preparation of the modified polyisocyanurate foams provided by a reaction of a polyisocyanate with a polyol composition mixture comprising a polyol, water, a trimerization catalyst, a carbodiimide catalyst, and an aromatic compound used a... | 05/06/1997 |
| 5624970 | C3 to C5 polyfluorcalkanes propellants Polyfluoroalkanes are used as propellants in sprayable compositions or in the preparation of plastic foams and in the electrical industry as cleansing and degreasing agents.... | 04/29/1997 |
| 5563180 | Catalyst for polyisocyanurate foams made with alternative blowing agents Rigid, closed cell polyisocyanurate foams are prepared by reacting together a polyisocyanate and a polyester polyol or a mixture of a polyester polyol and at least one other isocyanate-reactive compound in the presence of (a) a hydrogen-containing blowing... | 10/08/1996 |
| 5562857 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 2-methyl butane Azeotropic compositions made up of from about 65 to about 81% by weight of 1,1,1,3,3-pentafluoropropane and from about 19 to about 35% by weight of 2-methyl butane have been found to be particularly useful as blowing agents for the production of polyureth... | 10/08/1996 |
| 5561171 | Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which are capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during ... | 10/01/1996 |
| 5550168 | Process for producing modified polyisocyanurate foams A modified polyisocyanurate foam is produced by reacting an organic polyisocyanate, a polyol and water in the presence of three catalyst, i.e. two particular trimerization catalysts and a carbodiimidation catalyst. There can be produced, without using any... | 08/27/1996 |
| 5514726 | Polymer foams with inherent nonflammability and thermal stability and methods of preparation thereof Polymeric foams with novel chemical compositions are prepared by the condensation of specially-synthesized precursors, which contain (in addition to carbon and hydrogen) one or more of the following elements: oxygen, fluorine, nitrogen (in structures with... | 05/07/1996 |
| 5512603 | Hydroxy and amino functional pyrrolizidine catalyst compositions for the production of polyurethanes A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition consisting essentially of a pyrrolizidine of the formula: ##STR1... | 04/30/1996 |
| 5496866 | C3 to C5 polyfluoroalkanes propellants Polyfluoroalkanes are used as propellants in sprayable compositions or in the the preparation of plastic foams and in the electrical industry as cleansing and degreasing agents.... | 03/05/1996 |
| 5496867 | C3 to C5 polyfluoroalkanes propellants Polyfluoroalkanes are used as propellants in sprayable compositions or in the the preparation of plastic foams and in the electrical industry as cleansing and degreasing agents.... | 03/05/1996 |
| 5491174 | Process for preparation of polyurethanes utilizing novel catalysts Novel catalyst compositions comprising complexes of tin(IV) salts and amine compounds are used to prepare polyurethanes, polyureas, polycarbodiimides and polyisocyanurates. The complexes, which preferably employ primary amines, allow delay of gelation unt... | 02/13/1996 |
| 5472988 | Process for producing polyisocyanurate foams A process for producing polyisocyanurate foam which comprises reacting an organic polyisocyanate with a polyol and water in the presence of a halogen-free aliphatic phosphoric ester having a molecular weight of 140 to 270 and a trimerization catalyst. Pol... | 12/05/1995 |
| 5459171 | Core discoloration preventing agents in the production of isocyanate-based foams Compounds of the general formula ##STR1## in which n represents an integer from 2 to 6, preferably 2 or 3, m represents an integer from 1 to 6, preferably 1 to 3, R represents --C(CH3)3 and X represents hydrogen or the group ##STR2##... | 10/17/1995 |
| 5457138 | Method for producing open cell rigid polyurethane foam A method of producing an open cell rigid polyurethane foam which comprises reacting a polymethylene polyphenylisocyanate prepolymer with a polyol at an NCO/OH equivalent ratio of 1.3 to 3.0 by use of a blowing agent substantially comprising water in the p... | 10/10/1995 |
| 5405884 | Catalyst for polyisocyanurate foams made with alternative blowing agents Rigid, closed cell polyisocyanurate foams are prepared by reacting together a polyisocyanate and a polyester polyol or a mixture of a polyester polyol and at least one other isocyanate-reactive compound in the presence of (a) a hydrogen-containing blowing... | 04/11/1995 |
| 5405885 | Rigid polyurethane/polyisocyanate foams containing paraffinic based oils The invention is a rigid polyurethane foam to which a base stock lubricating oil made of at least 55 weight percent paraffinic carbons and less than 10 weight percent aromatic carbons has been added as a hydrophobic agent protecting the polyurethane foam ... | 04/11/1995 |
| 5395859 | Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which are capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during ... | 03/07/1995 |
