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| Number | Title | Issue Date |
| 6006796 | Asphalt loading safety system A system to prevent accidental discharge of hot-mix asphalt at asphalt plants with multiple silos includes a closed circuit TV camera and a system of flashing lights. The TV camera has a fixed view of the loading area with a monitor at the control panel. ... | 12/28/1999 |
| 6005021 | No-bake foundry mixes and their uses This invention relates to polyurethane-forming foundry binder systems and foundry mixes which comprise a foundry aggregate, said foundry binder system, and a liquid amine curing catalyst. The binder system comprises a polyol component containing a polyeth... | 12/21/1999 |
| 5950702 | Consumable pattern coating for lost foam castings The coated pattern is formed from a consumable pattern, preferably polystyrene, and is adapted to be decomposed and replaced by molten metal to form a casting. The improved coating is the dried residue of an aqueous coating formed from water, refractory p... | 09/14/1999 |
| 5945489 | Liquid oligomers containing unsaturation The liquid oligomeric compositions of this invention are made by the Michael addition reaction of acetoacetate functional donor compounds with multifunctional acrylate receptor compounds where the equivalent ratios of multifunctional acrylate to acetoacet... | 08/31/1999 |
| 5932666 | Low profile additives for polyester resin systems based on asymmetric glycols and aromatic diacids This invention is a thermoplastic saturated polyester low profile additive (low profile additive) useful in sheet molding compounds for parts, especially vehicle parts. The additive has a major component derived from aromatic compounds such as terephthali... | 08/03/1999 |
| 5880180 | Aldimine surface quality enhancers This invention is the addition of an aldimine to enhance the ability of thermoplastic low profile additives to improve the surface quality of cured sheet molding compound vehicle parts.... | 03/09/1999 |
| 5861466 | Synergistic improvement in vinyl ester resin shelf life Vinyl ester resins processed until low epoxy values are reached are storage stable for two weeks at 54° C. (130° F.). Adding a copper salt inhibitor also provides two weeks storage stability at 54° C. (130° F.). A synergistic effect is observed if bot... | 01/19/1999 |
| 5837089 | Heat reactivatable adhesive This invention is a method of using a heat activatable adhesive for laminating vinyl sheet to wood. The organic solvent-free adhesive combines a reactive styrene-acrylic latex emulsion, an ethylene vinyl acetate copolymer emulsion, and a wax. After applic... | 11/17/1998 |
| 5810958 | Process for forming fluid flow conduit systems and products thereof There is disclosed a process for bonding a rigid thermoplastic vessel to a flexible thermoplastic conduit using electromagnetic bonding techniques wherein the flexible thermoplastic conduit is configured to provide close fitting relationship under compres... | 09/22/1998 |
| 5763555 | Water-borne acrylic emulsion pressure-sensitive adhesive compositions containing multifunctional monomer having improved stability and removability A tacky pressure sensitive water-borne acrylic emulsion adhesive composition prepared with >1% multifunctional monomer has Tg90% gel content and is web coatable. The dried adhesive film anchors readily and remains easily removeable from diverse ... | 06/09/1998 |
| 5716701 | Pressure-sensitive adhesive compositions having improved peel force retention on flexible vinyl substrates This adhesive for laminating vinyl face stock to solid substrates has good initial peel strength, retains peel strength and is emulsion polymerized and compounded in the absence of sodium or lithium cations.... | 02/10/1998 |
| 5671591 | Integrated container moulding and filling facility This invention is an integrated system for making containers and filling them with ultra high purity chemicals all within a cleanroom environment so that the chemicals avoid contamination and meet semiconductor manufacturing purity standards.... | 09/30/1997 |
| 5643983 | Moisture curable 100% solids one component plywood adhesive The method of this invention makes multi-ply wood composite laminates from several wood veneer sheets using a 100% solids single component adhesive mixture, prepared in the absence of water, of isocyanate terminated prepolymer, polymeric diisocyanate and ... | 07/01/1997 |
| 5552478 | Low profile additives for polyester resin systems based on asymmetric glycols and aromatic diacids This invention is a thermoplastic saturated polyester low profile additive (low profile additive) useful in sheet molding compounds for parts, especially vehicle parts, the additive has a major component derived from aromatic compounds such as terephthali... | 09/03/1996 |
| 5521232 | Molding composition and process for low pressure molding of composite parts The invention is a molding composition and molding process for use in the manufacture of lightweight composite vehicle parts and construction parts having smooth surfaces. The molding process may be at low pressures. The composition includes kaolin clay f... | 05/28/1996 |
| 5504151 | Enhancers for thermoplastic low profile additives This invention is the polycapped oligomer adduct of a long chain fatty acid with a multi hydroxy functional or multi epoxy functional compound. This polycapped oligomer is useful in resin compositions to enhance the performance of thermoplastic low profil... | 04/02/1996 |
| 5380793 | Styrene soluble unsatured polyester resin from polyethylene terephthalate This invention is a low cost styrene-soluble unsaturated polyester resin made using recycled or virgin polyethylene terephthalate. The PET is first glycolyzed using inexpensive glycols and then reacted with maleic anhydride and dicyclopentadiene, forming ... | 01/10/1995 |
| 5302687 | Preparation of resins from phenolic compounds and oxazolines using ammonium or phosphonium salt catalysts A process for preparing a polymeric composition comprising reacting a mixture of at least one phenolic compound and at least one oxazoline compound in the presence of a catalytic amount of at least one ammonium salt and a tetracarbyl phosphonium salt, and... | 04/12/1994 |
| 5258171 | Method of producing chlorine dioxide in a gaseous stream and apparatus therefor The invention relates to a method and apparatus for generating chlorine dioxide in a reaction medium comprising a flowing gaseous carrier stream thereby providing chlorine dioxide having a low water content for use in oxidizing treatment applications whic... | 11/02/1993 |
| 5232531 | Adhesive for bonding EPDM rubber roofing membrane and bonding method employing same This invention relates to an adhesive for use with elastomeric substrates such as EPDM roofing materials, a method for splicing elastomeric substrates using splice adhesives and a laminate. The adhesive of this invention combines butyl rubber crosslinked ... | 08/03/1993 |
| 5143996 | Primerless adhesive for fiberglass reinforced polyester substrates A two part structural polyurethane adhesive composition and a method of making that adhesive. The adhesive is useful for adhering unprimed fiberglass reinforced polyester substrates and combines an isocyanate terminated prepolymer, and aliphatic polyisocy... | 09/01/1992 |
| 5132339 | Polyurethane-forming foundry binders containing a polyether polyol Certain polyether polyols are used in polyurethane-forming binders to improve the shakeout of molds and cores, made by cold-box and no-bake processes. Such molds and cores are used to make metal castings, particularly from low melting metals such as alumi... | 07/21/1992 |
| 5104527 | Automatic total reducers monitoring and adjustment system using titration A process and apparatus for automatically monitoring or adjusting, or both, the concentration of total reducers (i.e. reduced sulfur-containing constituents which consume iodine) in an aqueous medium (e.g. waste water stream) whereby the time period for i... | 04/14/1992 |
| 5101001 | Polyurethane-forming foundry binders and their use This invention relates to no-bake foundry binders and a no-bake process for preparing foundry shapes which utilizes polyurethane-forming foundry binders. The binders are unique because the isocyanate component preferably contains no solvent and the weight... | 03/31/1992 |
| 5098505 | Epoxy resin, thermoplastic polymer and hardener adhesive An adhesive composition comprising (A) An epoxide resin component, (B) A hardener component, and incorporated in either or both/or (A) and (B) a thermoplastic polymer, mixtures thereof and application of said mixtures to substrate surfaces to adhere said surfa... | 03/24/1992 |
| 5095068 | Adhesive of butyl rubber, curing agent, c-black and tackifier A roofing adhesive particularly suited for use in connection with membrane roofing materials such as EPDM or neoprene is preferably compounded from butyl rubber, a cross-linking system for the butyl rubber and a tackifier. The tensile strength, elongation... | 03/10/1992 |
| 5068196 | Method for determining fluid corrosiveness There is disclosed a portable apparatus and process for using same including a test conduit assembly and related conduit valve and fluid flow assemblies for conecting to a process unit for fluid flow communication with the test conduit assembly for passin... | 11/26/1991 |
| 5009960 | Magnetic recording medium prepared with polyurethane resin modified by a bicyclic amide acetal A magnetic recording medium is disclosed which comprises a non-magnetic support and a magnetic coating layer formed thereon, the magnetic coating layer being formed by applying a magnetic coating composition comprising a resinous binder and magnetic parti... | 04/23/1991 |
| 5004696 | Automatic total reducers monitoring and adjustment system A process and apparatus for automatically monitoring or adjusting, or both, the concentration of total reducers (i.e. reduced sulfur-containing constituents which consume iodine) in an aqueous medium (e.g. waste water stream) whereby the time period for i... | 04/02/1991 |
| 5002806 | Curative for structural urethane adhesive A curative for a two part structural primerless urethane adhesive for fiberglass reinforced polyester substrates curable at 240° F. (116° C.).... | 03/26/1991 |
| 5001190 | Process for filling space in a structure with a polyurethane composite in the presence of water The invention relates to a process for filling space in a structure with a polyurethane composite in the presence of water which comprises adding a coarse aggregate and certain polyurethane binders to the space of the structure to be filled. The process i... | 03/19/1991 |
| 4982781 | No-bake process for preparing foundry shapes for casting low melting metal castings This invention relates to a no-bake process for preparing foundry shapes which utilizes polyurethane-forming binders containing selected polyester polyols. The resulting foundry shapes are particularly useful in preparing castings from low melting metals.... | 01/08/1991 |
| 4974659 | Cold box process for preparing foundry shapes which use acrylated epoxy resins The subject invention relates to foundry binder systems, which are cured with gaseous sulfur dioxide, comprising as separate components: 1. a blend of an acrylated epoxy resin and a monoester solvent and; 2. an organic solvent; and a blend of an epoxy resin and an ... | 12/04/1990 |
| 4957708 | Process and apparatus for forming polymeric solutions There is disclosed an apparatus for forming hydrophilic polymeric solutions wherein a vessel is provided with a mixing assembly comprised of co-axially and vertically-disposed inner and outer cylindrically-shaped wall members mounted to a bottom wall memb... | 09/18/1990 |
| 4948765 | Refractory coating for making refractory shells This invention relates to refractory coatings and their use. The refractory coating comprises: (1) a carrier, generally water; (2) an alpha alumina monohydrate; (3) an aluminum hydroxyhalide; and (4) a refractory material. The refractory coatings are used for coati... | 08/14/1990 |
| 4946876 | Polyurethane-forming foundry binders containing a polyester polyol Certain polyester polyols are used in polyurethane-forming binders to improve the shakeout of molds and cores, made by a cold-box process, used to make low melting metal castings.... | 08/07/1990 |
| 4941584 | Reusable plastic drum container assembly A reusable plastic drum container assembly having a fitting-receiving member in an opening provided in a drum head wherein the opening is formed by a cylindrically-shaped indentation portion extending perpendicularly from the top surface of the drum head ... | 07/17/1990 |
| 4940769 | Novel thioether amide diols and polyurethane polymers therefrom A process for preparing thioether amide diol comprising reacting a bicyclic amide acetal with hydrogen sulfide at a temperature in the range of from 20° to 200° C. wherein a mole ratio of bicyclic amide acetal to hydrogen sulfide is in the range of from... | 07/10/1990 |
| 4927862 | Process for the preparation of a polyurethane from a storage stable polyol compositions Disclosed is a storage stable blend of a long chain polyol and a short chain diol wherein the diol is present in an amount whereby the diol and polyol form an incompatible blend. The blend is rendered storage stable by the addition of a compatibilizing am... | 05/22/1990 |
| 4923756 | Primerless adhesive for fiberglass reinforced polyester substrates A laminated fiberglass reinforced polyester (FRP) substrate made using a primerless adhesive and the process of making the laminated FRP substrate. The primerless adhesive combines a prepolymer, an aliphatic polyisocyanate and a curative.... | 05/08/1990 |
