Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8178591 | Carbon dioxide blown low density, flexible microcellular polyurethane elastomers Microcellular polyurethane flexible foams having densities no greater than 0.3 g/cc which are suitable for use as lightweight shoe sole components are produced with carbon dioxide in an amount such that the polyurethane-forming mixture has a free rise density of fro... | 05/15/2012 |
| 8097659 | Flexible polyurethane foam and a method of producing the same A flexible polyurethane foam is obtained by making a material containing polyols, a cross-linking agent and a polyisocyanate compound react in the presence of a catalyst, a blowing agent and an auxiliary blowing agent. At this time, the isocyanate index of the polyi... | 01/17/2012 |
| 7838567 | Foams made from water-absorbing, basic polymers, method for the production and utilization thereof Foams composed of water-absorbing basic polymers, obtainable by (I) foaming a crosslinkable aqueous mixture including (a) at least one basic polymer whose basic groups have optionally been neutralized, (b) at least one crosslinker, (c) at least one surfactant, (d) o... | 11/23/2010 |
| 7838568 | Insulation boards and methods for their manufacture A method of manufacturing a polyisocyanurate foam insulation board, the method comprising contacting a stream of reactants that comprise an isocyanate-reactive compound with a stream of reactants that include an isocyanate compound to form a reaction product, where ... | 11/23/2010 |
| 7378454 | Polyurethane composition and polishing pad A polyurethane composition containing solid beads dispersed therein, is formed of a microcellular polyurethane foam, and the composition has a storage modulus of elasticity at 40° C. of 270 MPa or more as measured by means of a dynamic elasticity measuring device. ... | 05/27/2008 |
| 7288211 | Hydrofluorocarbon blown foam and method for preparation thereof The invention relates to the addition of α-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisoc... | 10/30/2007 |
| 7205429 | Method for disposal of waste from acrylic acid process and acrylic ester process This invention is providing a method for efficient treatment of the waste material from a process for production of acrylic acid and an acrylic ester. This is a method for the disposal of waste material, which at least one waste material selected from the group cons... | 04/17/2007 |
| 7129279 | Lightweight tire support and composition and method for making a tire support A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer composition can also include an additive such as a catalyst, a filler,... | 10/31/2006 |
| 7098255 | Process for producing polyurethane foam A process for producing a finely cellular polyurethane foam by mixing a first ingredient comprising an isocyanate compound and a second ingredient comprising a compound containing an active hydrogen group, characterized by comprising adding a nonionic silicone surfa... | 08/29/2006 |
| 7094840 | Compositions comprising low molecular weight polyhydroxyalkanoates and methods employing same Polyhydroxyalkanoate compositions including hot melt adhesive compositions, biodegradable wax compositions, and protective coating compositions are provided and include a low molecular weight polyhydroxyalkanoate, a terminally-modified polyhydroxyalkanoate, or both.... | 08/22/2006 |
| 7081486 | Method of producing polymer A method of producing a polymer according to the present invention is characterized by comprising a step of photopolymerizing one or more photopolymerizable polymerization precursors by irradiation with an activation energy ray in a supercritical fluid or in a subcr... | 07/25/2006 |
| 7066801 | Method of manufacturing a fixed abrasive material Provided is a method for manufacturing a fixed abrasive material suitable for use in CMP planarization pads from an aqueous polymer dispersion that also includes abrasive particles that involves frothing the polymer dispersion, applying the froth to a substrate, mol... | 06/27/2006 |
| 6957805 | Gas charging unit of a polyurethane injection molding assembly A gas charging unit for adding gas to a liquid polyurethane component, in particular a filler-laden polyurethane component of a polyurethane injection molding unit, includes a mixing vessel having an inlet opening and receiving a liquid polyurethane component via th... | 10/25/2005 |
| 6924321 | Polyols with autocatalytic characteristics and polyurethane products made therefrom The present invention discloses a process for producing a polyurethane product with autocatalytic polyols. These autocatalytic polyols are based on an initiator that contains a tertiary amine. These autocatalytic polyols are reacted with a polyisocyanate in the pres... | 08/02/2005 |
| 6910951 | Materials and methods for chemical-mechanical planarization Provided are materials and methods for the chemical mechanical planarization of material layers such as oxide or metal formed on semiconductor substrates during the manufacture of semiconductor devices using a fixed abrasive planarization pad having an open cell foa... | 06/28/2005 |
| 6797736 | Method of forming high resilience slabstock polyurethane foam The subject invention provides a method of forming high resilience slabstock polyurethane foam having random cell structures to produce latex-like feel and characteristics. The method includes the first step of providing an isocyanate-reactive component and an isocy... | 09/28/2004 |
| 6784218 | Method of forming high resilience slabstock polyurethane foam displaying latex-like characteristics The subject invention provides a method of forming high resilience slabstock polyurethane foam having random cell structures and displaying latex-like feel and characteristics with superior physical performance to latex foam, including complying with California Tech... | 08/31/2004 |
| 6784217 | Process for making high resilience foams A prepolymer process for preparing a high resilience flexible polyurethane foam by reacting a polyisocyanate composition comprising at least 80% by weight of 4,4′-MDI and having an NCO value below 20% with a polyol composition comprising b1) an EO-rich polyol; b2)... | 08/31/2004 |
| 6780895 | Polyurethane carpet backings with improved tuft bind Improvements in tuft bind and/or elongation of tufted carpet may be achieved by selecting, as components of a tuft bind adhesive, one or more of: i) a polyol component comprising a low or ultra-low unsaturation polyoxypropylene polyol optionally containing up to 30 ... | 08/24/2004 |
| 6777455 | Process for producing polyurethane foam A process for producing a finely cellular polyurethane foam by mixing a first ingredient comprising an isocyanate compound and a second ingredient comprising a compound containing an active hydrogen group, characterized by comprising adding a nonionic silicone surfa... | 08/17/2004 |
| 6774153 | Process for preparing a free rise or slabstock flexible polyurethane foam Process for making free rise or slabstock flexible polyurethane foams with high resilience using diphenylmethane diisocyanate and a polyol composition comprising: (a) a polyoxyethylene-polyoxypropylene-polyol, having an average nominal hydroxyl functionality of 2-8,... | 08/10/2004 |
| 6653362 | Process for producing flexible polyurethane foam A process for producing a flexible polyurethane foam satisfying low resilience, high vibration absorption and high durability, is presented. A mixture comprising from 95 to 50 mass % of a polyoxyalkylene polyol produced by means of an alkali metal catalys... | 11/25/2003 |
| 6617369 | Process for making visco-elastic foams, polyols blend and reaction system useful therefor The invention relates to a one-shot or prepolymer process for preparing a visco-elastic polyurethane foam by reacting a polyisocyanate composition with a polyol composition comprising b1) an EO-rich polyol; b2) a polyol with an EO content between 20-50% a... | 09/09/2003 |
| 6593387 | Process for making high resilience foams The invention relates to a prepolymer process for preparing a high resilience flexible polyurethane foam by reacting a polyisocyanate composition comprising at least 80% by weight of 4,4'-MDI and having an NCO value below 20% with a polyol composition com... | 07/15/2003 |
| 6552097 | Prepolymer compositions for insulating foams A prepolymer composition for producing polyurethane insulating foams from pressure tanks which consists of a prepolymer component with at least one PU prepolymer with a content of NCO groups of 4 to 20 wt % and usual additives, as well as a propellant com... | 04/22/2003 |
| 6545063 | Hydrofluorocarbon blown foam and method for preparation thereof The invention relates to the addition of -methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyureth... | 04/08/2003 |
| 6417241 | Process for preparing a flexible polyurethane foam Process for making molded flexible polyurethane foams MDI-based foams with high resilience using MDI and a polyol composition.... | 07/09/2002 |
| 6414045 | One-component polyurethane compositions with improved curing A one-component polyurethane foam composition is described, which contains at least one prepolymer (isocyanate prepolymer), which has isocyanate groups, at least one blowing agent and known auxiliary and additive materials containing at least one ester, f... | 07/02/2002 |
| 6372810 | Mechanically frothed and chemically blown polyurethane foam The present invention is a low density polyurethane foam cushion useful as an attached carpet cushion or as a detached carpet underlay. The low density foams of the present invention are prepared by a process wherein a polyurethane foam formulation is blo... | 04/16/2002 |
| 6303667 | Foaming agents containing liquid carbon dioxide A blowing agent composition includes a blowing agent consisting of liquified carbon dioxide and 1,1-difluoroethane, or a mixture consisting of liquid carbon dioxide and at least one other liquid or pressure-liquified component selected from the group cons... | 10/16/2001 |
| 6271275 | Method and apparatus for producing polyurethane foam A method and apparatus are disclosed for producing polyurethane foam without the assistance of any through-flow mixing device for the precursor components. Air or other safe gas is mixed with a polyol-containing precursor to form a froth, and the froth is... | 08/07/2001 |
| 6271276 | Polyurethane foams prepared from mechanically frothed polyurethane dispersions The present invention is polyurethane dispersion composition that can be mechanically frothed to yield a foam that has good resiliency. Frothed foams of the present invention can be useful in cushioned flooring applications such as attached cushion broadl... | 08/07/2001 |
| 6268046 | Process for producing extruded foam products having polystyrene blends with high levels of CO2 as a blowing agent In one embodiment, the present invention relates to a process for preparing foam board or sheet including the steps of (A) forming a foamable mixture of (1) a major amount of a styrenic polymer having a high melt index, (2) a minor amount of a low melt in... | 07/31/2001 |
| 6248469 | Composite solid polymer electrolyte membranes The present invention relates to composite solid polymer electrolyte membranes (SPEMs) which include a porous polymer substrate interpenetrated with an ion-conducting material. SPEMs of the present invention are useful in electrochemical applications, inc... | 06/19/2001 |
| 6241220 | Apparatus and process for producing polymeric foam A process and apparatus for producing a polymeric foam, wherein foam components are brought together under pressure and are passed through a permeable discharge head where the pressure is reduced. The permeable discharge head comprises a diffuser element ... | 06/05/2001 |
| 6136875 | High productivity, low fugitive emission foams and foam processes A blowing agent for foaming polystyrene consisting essentially of at least one low permeability compound (preferably a volatile organic compound (VOC)), at least one low volatility compound (preferably a non-VOC) and, optionally, at least one high volatil... | 10/24/2000 |
| 6127442 | Process for foam production using dissolved under pressure carbon dioxide A process is described for the continuous production of polyurethane block foam using carbon dioxide which is physically dissolved under pressure as a foaming agent, wherein before the polyol and isocyanate components are mixed the carbon dioxide is disso... | 10/03/2000 |
| 6107358 | Water-absorbent resin and method for production thereof A method for the production of a water-absorbent resin capable of fast water absorption is disclosed which comprises the steps of dispersing bubbles of an inert gas in an aqueous monomer solution of a mixture of a water-soluble unsaturated monomer and a w... | 08/22/2000 |
| 6100309 | Process for preparing elastic polyurethane slabstock foams A present invention relates to a process for preparing elastic, flexible slabstock foams by reacting polyisocyanates with at least one polyol having a molecular weight from 2,000 to 10,000, having a functionality of 2 to 4, which have at least two hydroge... | 08/08/2000 |
| 6048909 | Foams having increased heat distortion temperature made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene interpolymers The present invention pertains to improved alkenyl aromatic polymer foams (and processes for their preparation) having increased heat distortion temperature and improved dimensional stability while maintaining good tensile/tear, creep and environmental di... | 04/11/2000 |
