William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7153354 | Chemically modified plasticized starch compositions by extrusion processing A chemically modified plasticized starch (CMPS) is prepared by reacting starch with an organic dibasic acid or an anhydride of the acid in the presence of a plasticizer using optional free radical initiators, and optionally with the incorporation of nano clays in th... | 12/26/2006 |
| 7056377 | Use of an acetylated pre-gelled starch with a high content of amylose A starch with a high content in amylose, obtained through a process comprising acetylation and pre-gellation, can provide useful coatings in food, drug, cosmetic and dietetic fields, both for humans and animals, and also in agriculture. ... | 06/06/2006 |
| 7022836 | Methods for producing and transforming cassava protoplasts The invention relates to a method for producing protoplasts of cassava or closely related species, which protoplasts are capable of regeneration into plants. The method comprises producing friable embryogenic callus from explants of cassava or closely related specie... | 04/04/2006 |
| 6897028 | Identification of molecular targets Identification of the molecular targets of a drug or toxin is the first step in understanding how the drug or toxin works, an important advance in learning how to improve a drug or assess the risks due to a toxin. The primary action of a drug usually involves bindin... | 05/24/2005 |
| 6703496 | Starch phosphates, method for the production thereof and their use The invention relates to starch phosphates exhibiting improved properties with regard to application techniques, to a method for the production thereof, and to their use. Based on the disadvantages of the known prior art, the aim of the invention is to pr... | 03/09/2004 |
| 6528629 | Malto-oligosaccharide derived glycosides Disclosed is a method for preparing a malto-oligosaccharide derived glycoside. Generally, the method comprises providing a malto-oligosaccharide and glycosylating the malto-oligosaccharide with an alcohol or a thiol under conditions suitable to form a ... | 03/04/2003 |
| 6455691 | Preparation of chemically reactive polysaccharides This invention describes improvements in or relating to the production of polysaccharide derivatives; more particularly it relates to a method of converting insoluble polysaccharides to a form in which they form part of an anhydrous system in which they m... | 09/24/2002 |
| 6204256 | Acylated cyclodextrin derivatives A cyclodextrin derivative, wherein at least 60 percent of the free hydroxy groups of said cyclodextrin are acylated with acyl groups where at least one of said acyl groups comprise a free carboxylic group.... | 03/20/2001 |
| 6075139 | Linear and cyclic sucrose reaction products, their preparation and their use Sucrose ester and ether products, useful as food or beverage bulking agents, reduced calorie sweeteners, fat replacement agents, stabilizing agents, thickening agents and emulsifying agents; adhesives; biodegradable plastics and films; sizing agents for p... | 06/13/2000 |
| 6063914 | Method of producing swellable, non-aging starch maleates, biologically degradable starch maleates as well as use The aging of swellable starch maleates is reduced by reacting with one or more singly and/or multiply functional nucleophiles as in a Michael condensation reaction. Mixtures of mercaptoethanol and 1,2-bis-(2-mercaptoethoxy)-ethane or mixtures of sodium bi... | 05/16/2000 |
| 6001927 | Thixotropic paint compositions containing hydrophobic starch derivatives Latex paint compositions containing water, pigment and a latex wherein the latex is prepared by emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of 0.1 to 0.2 pphm of at least one hydrophobically modified starch ha... | 12/14/1999 |
| 5945468 | Starch ester release coatings Release coating compositions comprising: a) a starch ester release agent having an ester component of 2 to 8 carbon atoms and a degree of substitution (DS) of from 1.0 to 2.2; b) a hydrophobic plasticizer; and c) water.... | 08/31/1999 |
| 5916883 | Acylated cyclodextrin derivatives A cyclodextrin derivative, wherein at least 60 percent of the free hydroxy groups of said cyclodextrin are acylated with acyl groups where at least one of said acyl groups comprise a free carboxylic group.... | 06/29/1999 |
| 5883242 | Starch for paper making The present invention provides a cationic starch prepared by roasting starch under the presence of a cationic polymer, a method for preparing the cationic starch, and a method for making paper board with the cationic starch. The method for making paper bo... | 03/16/1999 |
| 5834446 | Nerve process growth modulators Nerve process growth modulation can be achieved using derivatized cyclodextrins. Processes for making sulfated and aminated ଲ-cyclodextrin derivatives are also described in which a compound of the formula R"2 NCH X'+ X'- | 11/10/1998 |
| 5717087 | Thermoplastic and biodegradable polysaccharide esters/polysaccharide ether esters containing maleic acid addition product groups The present invention relates to thermoplastic and biodegradable polysaccharide esters/polysaccharide ether esters, which are characterised in that they can be represented by the general structure ##STR1## wherein Polysaccharide-O represents the subs... | 02/10/1998 |
| 5652360 | Cationic starch composition and process for making same Disclosed herein is a new cationic starch and cationic starch paste or slurry. The starch paste or slurry has a low cation equivalent value despite its high nitrogen content and also has a low solution viscosity despite its high molecular weight. The cati... | 07/29/1997 |
| 5635610 | Production of saccharide carboxylic acids A process for producing a saccharide carboxylic acid or a salt thereof characterized in that a microorganism belonging to the genus Pseudogluconobacter and capable of oxidizing a hydroxymethyl group and/or hemiacetal hydroxyl-associated carbon atom to a c... | 06/03/1997 |
| 5589577 | Applications and methods for the preparation of fatty acid esters of polysaccharides The invention is related to highly substituted, water-insoluble, poorly water-permeable fatty acid esters of polysaccharides and compositions comprising said polysaccharides esters suitable for use in hot-melt adhesives and as coatings for the controlled ... | 12/31/1996 |
| 5498706 | Water-resistant starch materials for the production of cast sheets and thermoplastic materials The present invention relates to water-resistant, thermoplastic starch materials processable into environmentally safe, thermoplastically produced products and cast sheets, which consist of starch acyl compounds, obtainable from high amylose starches and ... | 03/12/1996 |
| 5472599 | Separation agent comprising aliphatic or aromatic ester of polysaccharide A separation agent essentially comprises an aliphatic or aromatic ester of a polysaccharide, except for cellulose acetate and an aromatic ester of cellulose. It is useful for separation of various chemical substances, especially optical resolution of opti... | 12/05/1995 |
| 5466461 | Polysaccharide esters New polysaccharide esters are disclosed, and more precisely esters of acidic polysaccharides chosen from the group formed by carboxymethylcellulose, carboxymethyl starch and carboxymethylchitin. These new esters and some esters of the type already known a... | 11/14/1995 |
| 5415769 | Separation agent comprising aliphatic or aromatic ester of polysaccharide A separation agent essentially comprises an aliphatic or aromatic ester of a polysaccharide, except for cellulose acetate and an aromatic ester of cellulose. It is useful for separation of various chemical substances, especially optical resolution of opti... | 05/16/1995 |
| 5367067 | Water-resistant starch materials for the production of cast sheets and thermoplastic materials Water-resistant, thermoplastic starch materials which are processable into environmentally safe, thermoplastically produced products and cast sheets. They consist of starch acyl compounds, obtainable from high amylose starches and their derivatives (being... | 11/22/1994 |
| 5334311 | Separation agent comprising aliphatic or aromatic ester of polysaccharide A separation agent essentially comprises an aliphatic or aromatic ester of a polysaccharide, except for cellulose acetate and an aromatic ester of cellulose. It is useful for separation of various chemical substances, especially optical resolution of opti... | 08/02/1994 |
| 5321132 | Method of preparing intermediate DS starch esters in aqueous solution Starch esters having an intermediate DS of about 0.5 to 1.8 are prepared in an aqueous one step process by reacting starch with high treatment levels of organic acid anhydride and high concentrations of alkaline reagent.... | 06/14/1994 |
| 5068321 | Carbonic acid esters of polysaccharides and a process for their production New polysaccharide carbonates are produced by acylation of polysaccharides with carbonic acid esters and have degrees of substitution of preferably 0.5 to 3.... | 11/26/1991 |
| 5023363 | Aromatic compounds, a process for their preparation and their use in human and veterinary medicine and for cosmetic compositions An aromatic compound of the formula ##STR1## These compounds are useful in human and veterinary medicines and in cosmetic compositions.... | 06/11/1991 |
| 4944823 | Composition for bonding solid lignocellulosic materials Wood surfaces are bonded together by heating and pressing using a preferably dry binder formulation constituting a thorough mixture of an isocyanate and a sugar or starch, the binder formulation also preferably containing a stabilizer and optionally a cat... | 07/31/1990 |
| 4801699 | Polysaccharide esters containing acetal and aldehyde groups Polysaccharide esters containing aldehyde and acetal groups having the structural formulas ##STR1## are prepared by reacting a polysaccharide, such as a starch, gum, or cellulose, with an acetal-containing reagent which contains a functional gro... | 01/31/1989 |
| 4490526 | Method for the modification of starch in the presence of solvents A method for the modification of starch by silanes wherein the starch and silane are contacted in an organic solvent in the presence of a metallic acid ester of a metal of groups IVB or VB of the Periodic Table of the elements. The resulting suspension is... | 12/25/1984 |
| 4330440 | Activated matrix and method of activation The invention relates to the carbonylation of cross linked substituted and unsubstituted polysaccharides, their copolymers with macroporous synthetic polymers, macroporous synthetic polymers and rigid supports with pendant hydroxyalkyl groups. The carbony... | 05/18/1982 |
| 4294731 | Method for drying absorbent modified cellulosic polymers and the like A method for oven drying chemically modified cellulosic materials, especially fibers, having improved fluid absorbency involves incorporating into the cellulose structure while swollen an amphiphilic compound miscible with water which will not evaporate w... | 10/13/1981 |
| 4272526 | Derivatives of chloral The present invention relates to a chloral derivative having the general formula ##STR1## in which Y' is a polysaccharide consisting of a chain of anhydroglucose, modified anhydroglucose or uronic acid units as substituent group and in which R i... | 06/09/1981 |
| 4224439 | Activated matrix and method of activation Carbonylation of a polysaccharide and the product of that carbonylation. The carbonylated product can be used to prepare an affinity chromatography matrix which is an uncharged species of varying pH's. The carbonylated product is also useful for the prepa... | 09/23/1980 |
| 4211865 | Novel prostaglandin precursors in polymeric form A novel polymer consisting of a macromolecular polysaccharide matrix which is esterified in whole or in part by activated polyunsaturated acids containing twenty carbon atoms. Typical of these acids are, for example, 8, 11, 14-eicosatrienoic acid, 5, 8, 1... | 07/08/1980 |
| 4172195 | Process for the separation and purification of oligo and polyhydroxy compounds and borate esters thereof A process for the separation and/or purification of oligo- and polyhydroxy compounds by introducing and subsequently eliminating protective groups, wherein oligo- and polyhydroxy compounds are reacted with bis(ethyl-pivaloyloxy)-diboroxane or ethylboroxin... | 10/23/1979 |
| 4166902 | High polymers containing nicotinic acid, process for their preparation and their use New polymers consisting of a macromolecular structure of soluble starch to which 15-30% of nicotinic acid radicals are bound through covalent ester bonds. These polymers are gradually hydrolized in biological environment by setting free nicotinic acid and... | 09/04/1979 |
| 4155884 | Process and apparatus for producing modified starch products A process and apparatus are described for producing modified starch products. In the method of the invention, a slurry of starch is continuously moved at elevated temperature and pressure through a tubular heating zone and the hot fluid mass emerging from... | 05/22/1979 |
| 4145225 | Method of modifying the properties of cereal flours and the modified flours so produced Increasing the viscosity and smoothness of cereal flour pastes by treating the milled cereal flours, prior to pasting, with cyanide.... | 03/20/1979 |