Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7285165 | Cement compositions comprising set retarder compositions and associated methods Cement compositions are provided that comprise a hydraulic cement, water, and a set retarder composition, the set retarder composition comprising an acrylamide polymer derivative; and an iron compound. In some embodiments, cement compositions are provided that compr... | 10/23/2007 |
| 7282117 | Cellulosic fiber composites using protein hydrolysates and methods of making same Cellulosic fiber composites and finished cellulosic fiber composite articles are provided. The cellulosic fiber composites comprise cellulosic material and a resin binder. The resin binder comprises vegetable protein hydrolysates and a synthetic resin. The synthetic... | 10/16/2007 |
| 7259192 | Molecular weight reduction of polysaccharides by electron beams A method of depolymerizing galactomannan-type polysaccharide polymers and xanthan, preferably galactomannans, to a pre-selected lower molecular weight by irradiation with high energy electron beams. The preferred galactomannans for treatment according to this method... | 08/21/2007 |
| 7073585 | Cement compositions with improved fluid loss characteristics and methods of cementing in surface and subterranean applications Cement compositions comprising an improved fluid loss control additive, and methods for cementing using such cement compositions, are provided herein. Exemplary embodiments of the cement compositions comprise a hydraulic cement, water, and a fluid loss control addit... | 07/11/2006 |
| 7063153 | Methods and compositions for cementing wells Methods of cementing subterranean zones penetrated by well bores and well cement compositions. A well cement composition of the invention basically comprises a hydraulic cement, water in an amount sufficient to form a pumpable slurry and a fluid loss control polymer... | 06/20/2006 |
| 7021380 | Compositions comprising set retarder compositions and associated methods Cement compositions comprising set retarder compositions, and methods of using the cement compositions in surface and subterranean applications are provided. In some embodiments, cement compositions are provided that comprise a hydraulic cement comprising an API cem... | 04/04/2006 |
| 7019046 | Aqueous suspension agent for water insoluble compounds This invention relates to an improved aqueous suspension concentrate for water insoluble chemicals comprising a mixture of an anionic suspension agent and a homo- and/or a co-polymer of a heterocyclic vinyl lactam combined in a mole ratio of between about 0.1:1 and ... | 03/28/2006 |
| 6955826 | PROCESS FOR THE PROVISION OF A PLANT EXTRACT CONTAINING CONDENSED TANNINS, WITH ASTRINGENT CHARACTERISTICS, MODIFIED BY COPOLYMERIZATION, FOR USE IN TANNING AND RETAINNING OF SKINS, A PLANT EXTRACT WITH ASTRINGENT CHARACTERISTICS, MODIFIED BY COPOLYMERIZATION, AND USE OF A MODIFIED PLANT EXTRACT CONTAINING TANNINGS A process for obtaining a plant extract containing condensed tannins, with astringent characteristics, and modified by copolymerization, produces a material suitable for the tanning and retanning of skins. The process includes adding water to a reactor, adding a cop... | 10/18/2005 |
| 6841644 | Biopolymers obtained by solid state irradiation in an unsaturated gaseous atmosphere Disclosed are modified naturally occurring biocompatible biopolymers of plant and animal origin made by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify one or more of the p... | 01/11/2005 |
| 6713034 | Porous carbon electrode material, method for manufacturing the same, and carbon fiber paper The present invention provides carbon fiber paper consisting of an organic high-molecular compound as a binder and carbon fibers, characterized in that the carbon fibers contain thin fibers with an average diameter smaller than 5 μm and an average fiber length of 3... | 03/30/2004 |
| 6706808 | Binder compositions exhibiting reduced emissions The presently disclosed invention relates to a phenolic binder comprising a premix of a urea modified phenol-formaldehyde resole resin, a curing agent, and an additive selected from the group consisting of ammonium lignosulfonate, melamine and a melamine derivative.... | 03/16/2004 |
| 6632912 | Process for preparing a black liquor-phenol formaldehyde thermoset resin Disclosed is a process for preparing phenol-formaldehyde thermoset resin that can contain up to 80% by weight a black liquor, preferably a sodium carbonate black liquor. Black liquor are by-products extracted from pulping process, which normally contain l... | 10/14/2003 |
| 6610810 | Biopolymers obtained by solid state irradiation in an unsaturated gaseous atmosphere Disclosed is a method for modifying naturally occuring biocompatible biopolymers of plant and animal origin by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enhance and modify on... | 08/26/2003 |
| 6596908 | Process for the recovery of low molecular weight phenols, furfural, furfuryl alcohol and/or cellulose or cellulose-rich residues A process for the recovery of furfural, furfuryl alcohol, low molecular weight phenols and/or cellulose or a cellulose-rich material from a lignocellulosic material comprising: feeding a carrier gas into a reaction chamber to facilitate a fluidised bed ef... | 07/22/2003 |
| 6593460 | Method for grafting lignin, polymerizates produced according to the method and the utilization thereof The invention relates to biologically degradable lignin graft polymers comprised of lignin and ethylenically unsaturated monomers which are formed by an enzymatically catalyzed polymerization method in the presence of organic peroxides. The polymerizates ... | 07/15/2003 |
| 6517933 | Hybrid polymer materials The invention is directed to a hybrid polymer material or system that combines naturally occurring building blocks with synthetic building blocks. The sets of naturally occurring and synthetic building blocks are mixed and joined on a molecular or nanosco... | 02/11/2003 |
| 6420533 | Method to separate sodium from lignins and produce a sodium containing solution for recycle This method will produce depolymerized lignins substantially free from sodium compounds. Black liquor supplied from a pulping process is utilized for providing a mixture of depolymerized lignins dispersed and dissolved in absolution containing sodium hydr... | 07/16/2002 |
| 6339116 | Methods of fabricating cross-linked biobased materials and structures fabricated therewith Biobased cross-linked compositions, methods of fabrication and structures, in particular biobased printed wiring boards using the compositions and methods of making the structures are described. Biobased materials such as lignin, crop oils, wood resins, t... | 01/15/2002 |
| 6291558 | Composition board binding material This invention features a graft copolymer of lignosulfonates reacted with an unsaturated carbonyl compound and an aldehyde, in two separate reaction steps. The resin can be used as a substitute for a majority of pure urea formaldehyde resin in the manufac... | 09/18/2001 |
| 6287708 | Adhesive for fiber boards An adhesive binder for bonding together lignocellulosic particles, fibers and flakes of vegetable origin to form particle boards, fiber boards, flake boards and similar wood-based products, comprising a solublized fraction obtained by enzymatic treatment ... | 09/11/2001 |
| 6280855 | Intermediate product for preparation of lignin polymers and use thereof for production of wood materials The invention relates to an intermediate product for the preparation of polymerizates from lignin derivatives obtained from the cellulose industry. The intermediate product is produced by treating the lignin derivatives with enzymes capable of oxidizing p... | 08/28/2001 |
| 6239198 | Method for preparing alkaline solutions containing aromatic polymers The invention proposes a process which enables separation of aromatic polymers which can be precipitated by acidification, as can be found especially in waste water from cellulose production, from an alkaline solution in a reliable manner and in pure form... | 05/29/2001 |
| 6072015 | Lignin based paint A method is provided for producing a painted article comprising: (a) preparing a lignin solution comprising lignin and a dye or pigment; (b) mixing the lignin solution with a phenol oxidizing enzyme; (c) incubating the mixture from said step (b) under con... | 06/06/2000 |
| 5977287 | Treatment of aqueous systems using a chemically modified tannin There is provided a composition comprising tannin containing hydroxyl groups which has been (a) chemically modified by reaction of at least one of said hydroxyl groups with at least one member selected from the group consisting of an esterification agent ... | 11/02/1999 |
| 5916991 | Composition and method for water clarification Tannin containing polymers, their method of production and methods of using as water treatment agents are disclosed. The tannin containing polymers comprise copolymers of tannin and a cationic monomer. Another embodiment comprises tannin containing polyme... | 06/29/1999 |
| 5852069 | Biodegradable plastics and composites from wood In this disclosure, there are provided materials which completely degrade in the environment far more rapidly than pure synthetic plastics but which possesses the desirable properties of a thermoplastic: strength, impact resistance, stability to aqueous a... | 12/22/1998 |
| 5807952 | Process for producing phenolic compounds from lignins A process for the production of low molecular weight phenolic compounds from lignins through the pyrolysis of the lignins in the presence of a strong base. In a preferred embodiment, potassium hydroxide is present in an amount of from about 0.1% to about ... | 09/15/1998 |
| 5763557 | Grafting of a polymer onto cellophane by ultrasonic induced free radical polymerization The invention relates to the chemical bonding of a polymer/or polymers onto non-metallic substrates such as cellophane by ultrasonic techniques. The cellophane film is preactivated by contacting with silver nitrate solution followed by treatment with pota... | 06/09/1998 |
| 5741875 | Biodegradable plastics and composites from wood In this disclosure, there are provided materials which completely degrade in the environment far more rapidly than pure synthetic plastics but which possesses the desirable properties of a thermoplastic: strength, impact resistance, stability to aqueous a... | 04/21/1998 |
| 5719224 | Compositions and methods for detackifying paint spray booth water A method and composition for detackifying or coagulating and flocculating waterborne and mixed waterborne/solventborne paints in paint spray booth water. Aluminum chlorohydrate and a tannin containing polymer, preferably in an aqueous solution, are added ... | 02/17/1998 |
| 5684109 | Composition comprising a tannin-containing copolymer Tannin containing polymers, their method of production and methods of using as water treatment agents are disclosed. The tannin containing polymers comprise copolymers of tannin and a cationic monomer. Another embodiment comprises tannin containing polyme... | 11/04/1997 |
| 5665573 | Polymerization of lignin at alkaline pH The present invention relates to a method of enzymatic polymerization and/or modification of lignin or lignin containing materials. The invention also relates to the use of this method in the manufacture of wood composites or wood laminates.... | 09/09/1997 |
| 5656708 | Process for making graft copolymers from lignite and vinyl monomers A process for making a water-insoluble, graft copolymer of lignite-(ethene or substituted ethene monomer) having a central lignite network and at least one grafted side chain, R, having "m" repeating units of (1-phenylethylene), 1-methyl-1-(1-oxo-2-oxypro... | 08/12/1997 |
| 5648116 | Methods for suppressing dust emissions Methods for suppressing the dissemination of dust emissions from dust producing materials are disclosed. Fugitive dust emissions are suppressed by applying aqueous solutions of a copolymer of tannin and a cationic monomer to the dust producing materials.... | 07/15/1997 |
| 5614103 | Methods for detackifying paint spray booth water A method and composition for detackifying or coagulating and flocculating waterborne and mixed waterborne/solventborne paints in paint spray booth water. Aluminum chlorohydrate and a tannin containing polymer, preferably in an aqueous solution, are added ... | 03/25/1997 |
| 5608040 | Process for the production of lignin-containing polymers Polymers containing lignin and organic compounds are produced by polymerizing the lignin with organic compounds containing at least 3 carbon atoms as well as oxygen, nitrogen and/or multiple-linkage functions in the presence of radically oxidizing enzymes... | 03/04/1997 |
| 5591832 | Benzylated lignocellulosic substance and a producing method thereof A benzylated lignocellulosic substance obtained through benzylation, wherein 46 to less than 97% of lignin-carbohydrate complex (LCC) contained in a wood raw material from which the substance is formed remains.... | 01/07/1997 |
| 5502088 | Wood substitute based on lignocellulosic and inorganic materials, method for obtaining the same and use This invention refers to a wood substitute with lignocellulosic and mineral material particles which are molded in sheet, e.g. plates and/or panels in different thicknesses or forms in stencil at choice, using in principal natural and artificial, and vege... | 03/26/1996 |
| 5484895 | Graft copolymers of vascular plants, method of making same and uses therefore A graft copolymer of a vascular plant having a biologically produced part that is the plant or a component thereof and at least one sidechain, Sc, having randomly repeat unit, Rru, wherein Rru are formed by the polymerization of at l... | 01/16/1996 |
| 5424382 | Biodegradable plastics and composites from wood In this disclosure, there are provided materials which completely degrade in the environment far more rapidly than pure synthetic plastics but which possesses the desirable properties of a thermoplastic: strength, impact resistance, stability to aqueous a... | 06/13/1995 |
