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...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7285586 | Use of starch dispersions as binder in coating compositions and process for preparing the starch dispersions Coating compositions comprising a pigment and starch dispersion of discrete crosslinked starch particles in an aqueous liquid. The dispersion may be used as coating color for paper. A preferred process of preparing the dispersion of starch particles comprises (a) ob... | 10/23/2007 |
| 7276126 | Production of enzyme-resistant starch by extrusion A process for producing alpha-amylase resistant starch comprises extruding a feed starch at a temperature in the range of about 60-220° C., thereby producing a product alpha-amylase resistant starch. The feed starch can be in the form of an aqueous slurry or paste ... | 10/02/2007 |
| 7157573 | Hydrophobic starch derivatives The invention relates to a process for preparing a hydrophobic starch, comprising etherification, esterification or amidation of a root or tuber starch comprising at least 95 wt. % of amylopectin, based on dry substance of the starch, or a derivative thereof, with a... | 01/02/2007 |
| 7091192 | Linear cyclodextrin copolymers Linear cyclodextrin copolymers and linear oxidized cyclodextrin copolymers containing an unoxidized and/or an oxidized cyclodextrin moiety integrated into the polymer backbone are described. Methods of preparing such copolymers are also described. The linear cyclode... | 08/15/2006 |
| 7071327 | Polysaccharide-based superabsorbent film A superabsorbent polysaccharide can be obtained by crosslinking a polysaccharide or derivative thereof with at least 1% by weight of a flexible spacer having a chain length of at least 9 chain atoms and having terminal activated coupling groups. The flexible spacer ... | 07/04/2006 |
| 6921819 | Polysaccharide crosslinking, hydrogel preparation, resulting polysaccharide(s) and hydrogel(s), uses thereof The invention relates to a process for the crosslinking of polysaccharides. The process of the invention is a process for the crosslinking of at least one polymer selected from polysaccharides and their derivatives, under the action of at least one polyfunctional cr... | 07/26/2005 |
| 6884789 | Linear cyclodextrin copolymers Linear cyclodextrin copolymers and linear oxidized cyclodextrin copolymers containing an unoxidized and/or an oxidized cyclodextrin moiety integrated into the polymer backbone are described. Methods of preparing such copolymers are also described. The linear cyclode... | 04/26/2005 |
| 6884885 | Production of cyclodextrin complexes The process entails increasing the concentration of cyclodextrin to 15% (w/w) and above to form complexes through a precipitation process in order to increase the yield of complexes, increase the amount of guest complexed, and decrease the particle size of the compl... | 04/26/2005 |
| 6846497 | Rapidly expanding starches with altered crystalline structure This invention relates to a starch based tablet disintegrant useful at low addition levels and providing equally effective properties in water and physiological fluids. The starches are characterized by their low solubility in cold water, high swelling power and lab... | 01/25/2005 |
| 6843888 | Starches for use in papermaking This invention relates to a degraded, inhibited cationic starch for use in papermaking systems, which affords improved physical properties, particularly strength. Additionally these derivatives provide easy-to-prepare alternatives totraditional starches, and can eve... | 01/18/2005 |
| 6825252 | Use of starch dispersions as binder in coating compositions and process for preparing the starch dispersions Coating compositions comprising a pigment and starch dispersion of discrete crosslinked starch particles in an aqueous liquid. The dispersion may be used as coating color for paper. A preferred process of preparing the dispersion of starch particles comprises (a) ob... | 11/30/2004 |
| 6809197 | Emulsion stabilizing starch products Novel modified starch products and methods of preparation thereof are disclosed, wherein the starch products exhibit excellent water hydration and emulsion stabilization properties, while substantially maintaining individual granular structure. The modified starches... | 10/26/2004 |
| 6770755 | Process of oxidizing primary alcohols In a new process for oxidizing a primary and/or secondary alcohol, an oxidizing agent is used in the presence of a di-tertiary-alkyl nitroxyl, in an aqueous reaction medium at a pH of below 7. The di-tertiary-alkyl nitroxyl is especially 4-hydroxy-TEMPO, and the pro... | 08/03/2004 |
| 6755915 | Method for the preparation of starch particles A method for the preparation of starch particles in a two-phase system comprises at least the following steps: a) a preparation of a first phase comprising a dispersion of starch in water; b) preparation of a dispersion or emulsion of the first phase in a second liq... | 06/29/2004 |
| 6696563 | -Amylase-resistant polysaccharides, production method, use and foods containing these polysaccharides The invention relates to a production method of -amylase resistant polysaccharides with high RS content, comprising the following steps: a) producing a paste of water-insoluble poly-(1,4--D-glucan) and water; b) heating the paste; c) cooling... | 02/24/2004 |
| 6670470 | Modified starch The present invention relates to a process for the preparation of a stable, chlorine free modified starch which is useful in paper coating and sizing. In the process, starch is degraded by catalyzed hydrogen peroxide oxydation, and stabilized by acetyl es... | 12/30/2003 |
| 6620927 | Thiol-modified hyaluronan The present invention relates to biscarbodiimides, thiourea derivatives, urea derivatives, and cross-linked hyaluronan derivatives having at least one intramolecular disulfide bond, and methods of preparation thereof. The invention also includes thiolated... | 09/16/2003 |
| 6617448 | Process for producing grosslinked starch derivatives and crosslinked starch derivatives produced by the same A paste of starch derivative is crosslinked by irradiation with γ-rays or electron beams in a dose of 0.1-200 kGy. Two different levels of crosslinking are performed; the first is mild crosslinking by irradiation at a low dose of 0.1-1.0 kGy to such an e... | 09/09/2003 |
| 6605715 | Process for the preparation of a starch ester Process for the preparation of a starch ester, in particular a starch acetate, wherein a starch-based feedstock is reacted with an organic carboxylic acid anhydride in the presence of a catalyst. The reaction of the starch-based feedstock and the anhydrid... | 08/12/2003 |
| 6596860 | Adhesive composition The invention relates to an adhesive composition comprising a derivative of a starch, which comprises at least 95 wt. % of amylopectin, based on dry substance of the starch, wherein the derivative is obtainable by cross-linking, etherification, esterifica... | 07/22/2003 |
| 6541060 | Stabilized or stabilized, crosslinked waxy potato starch Compositions, particularly foodstuffs, were thickened by the inclusion of an effective amount of a stabilized waxy potato starch, particularly a stabilized, crosslinked waxy potato starch, more particularly a hydroxypropylated waxy potato distarch phospha... | 04/01/2003 |
| 6509323 | Linear cyclodextrin copolymers Linear cyclodextrin copolymers and linear oxidized cyclodextrin copolymers containing an unoxidized and/or an oxidized cyclodextrin moiety integrated into the polymer backbone are described. Methods of preparing such copolymers are also described. The lin... | 01/21/2003 |
| 6482876 | Agglomerates for the production of an aqueous binder system The invention relates to an agglomerate containing at least one of the following water-soluble or water-dispersible materials as a bonding base polymer: carboxylized and/or alkoxylized starch, cellulose ether and fully synthetic vinyl polymers and/or poly... | 11/19/2002 |
| 6417171 | Preparation of polymers by interfacial derivatization This invention utilizes methods of emulsion chemistry to derivative polymers, as distinguished from the synthetic methods of the prior art, whereby such polymers are derivative in a true solution. The derivative polymers are useful in that they may be rea... | 07/09/2002 |
| 6331619 | Superabsorbent material and method for producing said material A superabsorbent polysaccharide derivative is obtained by oxidation of the polysaccharide to the extent that the derivative contains 0.2-0.3 carboxyl group per monosaccharide unit and cross-linking the oxidized polysaccharide with 0.0001-0.2 equivalent of... | 12/18/2001 |
| 6229009 | Polycarboxylic based cross-linked copolymers A cross-linked copolymer based on at least one non-crosslinked polycarboxylic polysaccharide and at least one second non-crosslinked polycarboxylic polymer which is not a polycarboxylic polysaccharide and a cross-linking agent having at least two amine fu... | 05/08/2001 |
| 6147175 | Crosslinked biological products, process for obtaining such products, and their use as removers The invention relates to the field of biological chemistry, and to polysaccharides in particular. Specifically, it concerns biological products obtained as a result of the polymerization and crosslinking in an alkaline medium of a gel, comprised of wheat ... | 11/14/2000 |
| 6086917 | Tablet containing an enzymatically converted starch derivative encapsulating agent The present invention is directed to a tablet, particularly a pharmaceutical dosage form, which contains an encapsulating agent comprising a modified starch which is prepared by enzymatic hydrolysis of a starch molecule after the preparation of a starch d... | 07/11/2000 |
| 6017849 | Synthesis methods, complexes and delivery methods for the safe and convenient storage, transport and application of compounds for inhibiting the ethylene response in plants The present invention generally relates to the regulation of plant physiology, in particular to methods for inhibiting the ethylene response in plants or plant products, and has three embodiments. The first embodiment relates to methods of minimizing impu... | 01/25/2000 |
| 5998606 | Mn(IV)-mediated crosslinking and functionalization of chromatography media Novel methods are described to synthesize chromatography media. The methods describe a crosslinking procedure utilizing the catalytic effect of MnO(OH)2 in obtaining a very rigid matrix. The mechanism of crosslinking is likely of free-radical t... | 12/07/1999 |
| 5851959 | High temperature stable modified starch polymers and well drilling fluids employing same A modified starch polymer derived from an unmodified starch having an amylopectin content of at least 80% by weight. The starch is modified by crosslinking with epichlorohydrin, the amount of epichlorohydrin crosslinking being equivalent to that which is ... | 12/22/1998 |
| 5833755 | Starch degradation using metal-based coordination complexes A process for the degradation of starch, particularly granular starch, using hydrogen peroxide and a catalytic amount of a metal-based coordination complex in an alkaline slurry reaction.... | 11/10/1998 |
| 5827372 | Aqueous alcoholic aklaline process for cationization and anionization of normal, waxy, and high amylose starches from cereal, legume, tuber and root sources A starch cationization process comprises suspending the starch in an aqueous alcoholic alkaline solvent containing a critical level of water (starch to water ratio 1:3 to 3:1), heating the reaction mixture for a few minutes at 30°90° C., adding a cation... | 10/27/1998 |
| 5780616 | Cationic polymer The invention relates to a cationic polysaccharide, preferably in fibrous form, having superabsorbent characteristics. The polysaccharides are substituted by quaternary ammonium groups, have a ds of at least 0.5, preferably 0.5 to 2.5 and are cross-linked... | 07/14/1998 |
| 5739316 | Cross-linked cellulose hydrate membranes A process for cross-linking a cellulose hydrate membrane by use of a water-soluble diepoxide in an alkaline solution. The membrane so produced is highly resistant to attack by alkalis, acids and cellulases, and is readily regenerable by alkaline cleaning.... | 04/14/1998 |
| 5688776 | Crosslinked polysaccharides, process for their preparation and their use The invention relates to polysaccharides which are crosslinked with bifunctional crosslinkers and are no longer water-soluble but are still biodegradable, have a swelling of from 100 to 1000%, where the swelling, which means the percentage gain in weight,... | 11/18/1997 |
| 5629416 | Method of preparing crosslinked starch esters A process for preparing biodegradable, high humidity resistant crosslinked starch esters comprising reacting starch with monocarboxylic acid anhydride in a caustic catalyzed system to a DS of about 1.3 to 2.7 and crosslinking the starch ester in the same ... | 05/13/1997 |
| 5612321 | Antioxidant grafted polysaccharides Grafted polysaccharide compositions comprising polysaccharides grafted with antioxidants on at least one hydroxyl group of the polysaccharide. The use of antioxidant grafted polysaccharides or antioxidant grafted crosslinked polysaccharides as a treatment... | 03/18/1997 |
| 5541304 | Crosslinked hydrogel compositions with improved mechanical performance This invention provides a method of altering the water content of a hydrogel comprising treatment of said hydrogel with a liquid dehydrating composition. There is further provided a method of altering the water content of a hydrogel-containing medical dev... | 07/30/1996 |
| 5523339 | Method of papermaking using crosslinked cationic/amphoteric starches A method of making paper in an alkaline or acid system wherein a selected crosslinked, cationized or amphoteric starch is added to the system, said starch being crosslinked by adding enough crosslinking agent to provide a starch having a breakdown viscosi... | 06/04/1996 |
