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Class 536/48 - Esters


Subclass of Class 536 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which result from the reaction of a hydroxyl group
No. of patents: 46
Last issue date: 12/26/2006


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NumberTitleIssue Date
7153354Chemically 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
7056377Use 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
7022836Methods 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
6897028Identification 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
6703496Starch 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
6528629Malto-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
6455691Preparation 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
6204256Acylated 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
6075139Linear 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
6063914Method 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
6001927Thixotropic 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
5945468Starch 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
5916883Acylated 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
5883242Starch 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
5834446Nerve 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
5717087Thermoplastic 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
5652360Cationic 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
5635610Production 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
5589577Applications 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
5498706Water-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
5472599Separation 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
5466461Polysaccharide 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
5415769Separation 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
5367067Water-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
5334311Separation 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
5321132Method 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
5068321Carbonic 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
5023363Aromatic 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
4944823Composition 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
4801699Polysaccharide 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
4490526Method 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
4330440Activated 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
4294731Method 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
4272526Derivatives 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
4224439Activated 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
4211865Novel 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
4172195Process 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
4166902High 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
4155884Process 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
4145225Method 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
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