The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7351859 | Heat activated tertiary amine urethane catalysts This invention concerns a compound formed from a tertiary amine-carboxylic acid salt, where the carboxylic acid and tertiary amine are selected such that the catalyst salt is blocked at room temperature and becomes unblocked at an elevated temperature. The compound ... | 04/01/2008 |
| 7312253 | Insulating thermoplastic foams made with methyl formate-based blowing agents A blowing agent blend for making thermoplastic polymer foams comprises methyl formate. The blowing agent blend can further comprise at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a h... | 12/25/2007 |
| 7260914 | Method and apparatus for packaging horticultural products In a method and apparatus for packaging a horticultural product, especially cut flowers, for transportation, one or more stems are inserted through a flexible foam block formed from a low density, low compression force material disposed in an opening of container su... | 08/28/2007 |
| 7247701 | Amino amides, peptides and peptidomimetics Synthetic methods and compounds involving amino amides, peptides and peptidomimetics. Amino amide derivatives are prepared via the one-step three-component reaction of a glyoxamide, an amine, and an organoboron derivative. Conversion of the product to another glyoxa... | 07/24/2007 |
| 7169823 | Tertiary alkanolamine polyurethane catalysts derived from long chain alkyl and fatty carboxylic acids The present invention relates to a method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of water as a blowing agent, a cell stabilizer, and a tertiary amine amide catalyst composition represented by... | 01/30/2007 |
| 7064172 | Catalyst for production of a polyurethane resin and method for producing a polyurethane resin Catalyst containing various amine compounds are described, for the production of polyurethane resins. ... | 06/20/2006 |
| 7049265 | Organic anion catalyst system for foams Disclosed herein are compositions useful for introducing metal carboxylate salts as catalysts into systems useful for producing polyurethane and polyisocyanurate foams. The methods permit the introduction of such catalysts in the absence of substantial amounts of wa... | 05/23/2006 |
| 6998508 | Tertiary alkanolamines containing surface active alkyl groups The present invention relates to novel tertiary alkanolamines useful as catalysts for preparing polyurethane foams and as additives to reduce the dynamic surface tension of aqueous solutions. The tertiary alkanolamines may be represented by formula (I): ... | 02/14/2006 |
| 6949664 | Trihydroxy polyunsaturated eicosanoids The invention features methods for the preparation of naturally occurring trihydroxy polyunsaturated eicosanoids and their structural analogs. The invention further provides new derivatives of trihydroxy polyunsaturated eicosanoids that can be prepared according to ... | 09/27/2005 |
| 6946542 | Amino amides, peptides and peptidomimetics Synthetic methods and compounds involving amino amides, peptides and peptidomimetics. Amino amide derivatives are prepared via the one-step three-component reaction of a glyoxamide, an amine, and an organoboron derivative. Conversion of the product to another glyoxa... | 09/20/2005 |
| 6927294 | Nitrogen-containing heterocycles Functionalized nitrogen heterocyclic compounds, including benzodiazepines and azasugars, and synthetic methods for preparing such compounds. Nitrogen-containing heterocycles are prepared by reacting amino-carbonyl compounds that contain an amine moiety connected via... | 08/09/2005 |
| 6894139 | Catalysts, in particular for the preparation of polyisocyanate polyadducts Catalysts contain, as structural units, at least one tertiary amino group and at least one group which, after its decomposition, is capable of complexing or protonating the tertiary amino group. ... | 05/17/2005 |
| 6800714 | Catalyst and process for preparing color-reduced polyisocyanates containing isocyanurate groups The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups. ... | 10/05/2004 |
| 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 |
| 6747069 | Tertiary alkanolamine polyurethane catalysts derived from long chain alkyl and fatty carboxylic acids The present invention relates to a method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of water as a blowing agent, a cell stabilizer, and a tertiary amine amide catalyst composition represented by... | 06/08/2004 |
| 6730628 | Catalyst and process for preparing color-reduced polyisocyanates containing isocyanurate groups The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups. ... | 05/04/2004 |
| 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 |
| 6596663 | Catalyst composition A catalyst composition for the production of a polyurethane resin, which comprises an amine compound of the following formula (1): ##STR1## wherein each of R1 and R2 which are independent of each other, is a C1-4 alkyl group, such alkyl groups ... | 07/22/2003 |
| 6586485 | Production of flexible polyurethane foams In a process for producing flexible polyurethane foams by the reaction known per se of polyisocyanates with compounds containing at least two hydrogen atoms which react with isocyanate, the reaction is carried out in the presence of cyclic or heterocyclic... | 07/01/2003 |
| 6586487 | Low-density, water blown polyurethane foams for energy-absorbing applications A method for making an energy-absorbing foam having a density that is less than about 7 pcf that exhibits excellent strength properties and that is particularly suitable for automobile bumper applications. The invention is also directed to the energy-abso... | 07/01/2003 |
| 6552154 | Catalyst and process for preparing color-reduced polyisocyanates containing isocyanurate groups The present invention relates to a catalyst and to a process for preparing color-reduced polyisocyanates containing isocyanurate groups.... | 04/22/2003 |
| 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 |
| 6525107 | Acid-blocked amine catalysts for the production of polyurethanes Novel acid-blocked amine catalysts and their use in the preparation of polyurethanes. The acid-blocked amine catalysts have the general structure shown below: ##STR1## wherein A is the residue of an organic acid anhydride; R1 is H or C | 02/25/2003 |
| 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 |
| 6444720 | Open-cell rigid polyurethane foams Open-cell rigid foams containing urethane and/or isocyanurate and/or urea groups are produced with a long-chain polyether polyol having low double bond content.... | 09/03/2002 |
| 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 |
| 6403664 | Combination of metal salts of ricinoleic acid with reactive amines in producing polyurethane forms The invention relates to the combined use of metal salts of ricinoleic acid with reactive amines in the preparation of polyurethane foams (PUR foams) and of their solutions in aqueous or organic solvents in the preparation of polyurethane foams in combina... | 06/11/2002 |
| 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 |
| 6337355 | Two-pack urethane foam composition An apparatus is disclosed for injecting an expandable or foaming material in a closed sectional structure of a body. The apparatus is suitable for mass-producing vehicles, such as automobiles efficiently. This apparatus is provided with a manipulator (38)... | 01/08/2002 |
| 6306918 | Semi-rigid polyurethane foam A semi-rigid polyurethane foam having a strength retention of not less than 70% when allowing it to stand at 120° C. for 24 hours, and a Haze value of not more than 2 as determined by Fogging test, prepared by mixing a polyol mixture comprising a polyol,... | 10/23/2001 |
| 6194475 | Use of metal salts of ricinoleic acid in producing polyurethane The invention relates to the use of metal salts of ricinoleic acid or solutions thereof in water or in organic solvents in producing polyurethane foams.... | 02/27/2001 |
| 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 |
| 6077927 | Process for coloring polymer resins and products thereof A method of providing for manufacturing a colored polymer resin having the steps of: (a) blending a disazo colorant into a mixture of monomers, the colorant having a poly(oxyalkylene) substituent comprising from 2 to 200 alkylene oxide residues, bonded to... | 06/20/2000 |
| 6046706 | Antenna mast and method of using same An antenna mast and method of using it relate to a retractable mast having a retractable mast having a plurality of tubular telescoping sections to enable the mast to move between a fully retracted storage position and a fully extended use position. Each ... | 04/04/2000 |
| 5864002 | Process for coloring polymer resins and products thereof A method of providing for manufacturing a colored polymer resin having the steps of: (a) blending a disazo colorant into a mixture of monomers, the colorant having a poly(oxyalkylene) substituent comprising from 2 to 200 alkylene oxide residues, bonded to... | 01/26/1999 |
| 5840779 | Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the poly... | 11/24/1998 |
| 5770635 | Polyol composition having good flow and formic acid blown rigid polyurethane foams made thereby having good dimensional stability A polyol composition is provided which when reacted with an organic isocyanate, has good flow characteristics and makes a rigid polyurethane foam having good dimensional stability at low densities. The polyol composition has a polyol component which must ... | 06/23/1998 |
| 5730896 | Polymeric foams A method the preparation of rigid foams by reacting an organic polyisocyanate with an isocyanate-reactive material in the presence of a blowing promoter characterised in that the isocyanate-reactive material comprises at least one isocyanate-reactive cycl... | 03/24/1998 |
| 5710190 | Soy protein-based thermoplastic composition for foamed articles The invention provides a biodegradable thermoplastic composition made of soy protein, a plasticizing agent, a foaming agent, and water, that can be molded into biodegradable articles that have a foamed structure and are water-resistant with a high level o... | 01/20/1998 |