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WO/2003/035699A1 |
The invention relates to a method of preparing polyglucuronic or copolyglucuronic acid. The inventive method consists of a first step a) involving the regioselective oxidation in position C6 of an esterified polyanhydroglucose having an ...
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WO/2003/020770A1 |
A substituted polysaccharide comprising ß1-4 linkages having covalently bonded on the polysaccharide moiety thereof, at least one deposition enhancing group which undergoes a chemical change in water at a use temperature to increase the...
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WO/2003/020819A1 |
A composition comprising a silicone and a substituted polysaccharide comprising ß1-4 linkages having covalently bonded on the polysaccharide moiety thereof, at least one deposition enhancing group which undergoes a chemical change in wa...
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WO/2003/016356A1 |
Disclosed is a process for producing water-insoluble cellulose fibers having high carboxyl content by reacting cellulose fiber in suspension with dicarboxylic acid anhydride or chloride in the presence of a basic catalyst. The fibers pro...
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WO/2003/010206A1 |
The invention relates to polysaccharide graft polymers useful for incorporation as benefit agents in laundry detergent and fabric treatment compositions, and their preparation. The invention also relates to substituted polysaccharides us...
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WO/2003/002159A1 |
Process for bulk autoclaving of polysaccharides, wherein the process includes: a) dissolving the polysaccharides in an aqueous solution and mixing until a homogeneous solution is obtained; b) filling the resulting solution in at least on...
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WO/2003/000966A1 |
A thermoplastic cellulose derivative composition which comprises, as a primary component, a cellulose ester having an aliphatic polyester side chain having a recurring unit having 2 to 5 carbon atoms, and exhibits a loss on heating at 20...
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WO/2002/083812A1 |
Process for manufacturing temperature-sensitive polymers utilizing a heat transfer fluid comprising a hydrocarbon fluid selected from aliphatic hydrocarbons, alicyclic hydrocarbons, aliphatic-or alicylic-substituted aromatic hydrocarbons...
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WO/2002/079265A1 |
The invention concerns a method for preparing a food product with reduced caloric value, characterised in that it comprises the step which consists in replacing all or part of the caloric substances of the food product with a sufficient ...
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WO/2002/072638A1 |
A method for adjusting the degree of substitution with an acetyl group of cellulose acetate, characterized in that the intermolecular or intramolecular adjustment of the degree of substitution with an acetyl group is carried out through ...
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WO/2002/070123A1 |
A separating agent for an optical isomer which comprises an alicyclic ester derivative or a polysaccharide having no aromatic group as an effective component. The separating agent has no great UV absorption as demonstrated by that by an ...
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WO/2002/057318A1 |
A cellulose acylate which is a polymer obtained by substituting cellulose with acyl groups in 2-, 3-, and 6-positions. The total degree of acyl substitution in the 2- and 3-positions is regulated to from 1.70 to 1.90. The degree of 6-pos...
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WO/2002/053599A2 |
The present invention relates to the preparation of a series of oxidized cellulose esters suitable for use as a drug carrier in the development of biodegradable controlled and/or sustained release pharmaceutical, agricultural, and veteri...
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WO/2002/048302A1 |
A laundry treatment composition comprising composition comprising:i) a polymer having an average repeat unit of:in which R1-6 are independently of one another selected from H, a hydrolysable group, or a fibre reactive group in which when...
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WO/2001/085800A2 |
Product of esterified polysaccharides and the process of making such product. The process can be enzymatic where an enzyme is used as a catalyst for the reaction. The process can also be chemical where no enzyme is used. Novel products a...
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WO2000047701A9 |
In one aspect, the invention provides methods for separating a corn fiber lipid fraction from corn fiber and novel corn fiber oils prepared therefrom. In another aspect, the invention provides methods of obtaining derivatizable cellulose...
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WO/2001/072847A1 |
A cellulose acetate characterized by satisfying at least one requirement selected from the following requirements (A), (B), and (C), provided that the case where it satisfies the requirement (B) only is excluded. Requirement (A): the num...
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WO/2001/070820A1 |
A process for preparing in one step cellulose esters (particularly cellulose diesters) having uniform substituent distribution and being soluble in hydrous acetone or other solvents. This process comprises esterifying cellulose under ult...
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WO/2001/053366A1 |
The present invention is directed to a copolymer capable of forming a water- and oil-repellent agent that enables binding to textiles and other materials without the production of formaldehyde. The copolymer according to the present inve...
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WO/2001/046264A1 |
A novel partial ester of cellulose with a nitrogenous carboxylic acid, the ester being useful as an antibacterial agent, a flame retardant, etc.; and a simple process for producing the partial ester. Fibers made of the partial ester have...
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WO/2001/025283A1 |
Disclosed are amine functional cellulose ester resins and methods of making the same. The amine functional cellulose ester resins comprise at least one repeat unit of structure (I) wherein R¿1?, R¿2?, and R¿3? are selected independent...
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WO/2001/025352A1 |
Disclosed are a method of dispersing a pigment, a pigment dispersion, a coating composition comprising said pigment dispersion, a method of making a coating composition, and a method of improving the appearance of a coating composition. ...
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WO/2001/005839A1 |
This invention refers to the use of surface-active agents as a treatment of effluents containing acetic derivatives by tangential filtration characterized from aqueous solutions containing between 20 and 35 % in weight of acetic derivati...
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WO/2001/002442A1 |
The invention is directed to a biocompatible polysaccharide derivative (I) which comprises (1) a polysaccharide covalently bonded to aspartic acid, (2) a two step process to prepare said material from a polysaccharide, maleic anhydride a...
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WO/2000/071586A1 |
Cellulose derivatives are formed by first crosslinking cellulose and subsequently reacting the crosslinked cellulose with a reagent capable of forming a cellulose ether or ester. Many crosslinking agents are suitable but those forming et...
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WO/2000/050493A1 |
The invention concerns a method for making a cellulose or starch fatty ester by esterification or transesterification of a cellulosic or starchy material using a fatty reagent. The invention is characterised in that it consists in introd...
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WO/2000/050492A1 |
The invention concerns a method for making a solid cellulosic or starchy material hydrophobic which consists in: grafting a fatty material on the alcohol functions of the cellulosic or starchy material. The invention is characterised in ...
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WO/2000/047628A2 |
A method for producing derivatized microfibrillar polysaccharide, including but not limited to cellulose, derivatized by steric and/or electrostatic forces, where the electrostatic forces are provided by anionic charge or by a combinatio...
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WO/2000/044791A1 |
A method for directly producing a mixture of cellulose sulfoacetate derivatives by esterification of cellulosic material, characterized in that it comprises the following steps i) the cellulosic material is suspended in a glacial acetic ...
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WO/2000/039167A1 |
The invention relates to a method for producing a cellulose derivative with formate substituents by reacting a cellulose material that has been impregnated with excess alkaline and/or alkaline-earth lye, with a formylating agent. The met...
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WO/2000/032638A1 |
The invention concerns chiral esters of polysaccharides, preferably of cellulose, amylose, $g(b)-cyclodextrin or amylopectin, obtained by reacting, in a basic medium, polysaccharides (polyhydroxy compounds) with racemic or enriched acid ...
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WO/2000/031143A1 |
Cellulose triacetate having satisfactory filterability, i.e., having a clogging constant (K) as determined by the following method of 70 or lower. (Measurement method) Cellulose triacetate is dissolved in a methylene chloride/methanol [9...
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WO/2000/018861A1 |
A water-soluble or water-dispersible material for deposition onto a substrate during a treatment process, the material comprising: (i) a deposition enhancing part having a polymeric backbone; and (ii) a benefit agent attached to the depo...
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WO/2000/015692A1 |
A cellulosic ester has associated with the ester at least one near infrared fluorophore. A method for incorporating the near infrared fluorophore into the cellulosic ester is also provided. In the method, the near infrared fluorophore is...
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WO/1999/055774A1 |
The application relates to a process for blending a cellulose ester with a functional additive, by: (a) admixing the functional additive with the cellulose ester and a first acid; and (b) contacting the admixture with an aqueous precipit...
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WO/1999/050305A1 |
An article molded from a cellulose acetate composition containing a composite of a degradation accelerator comprising at least one compound selected from the group consisting of oxyacids of phosphorus, oxyacids of sulfur, oxyacids of nit...
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WO/1999/049124A2 |
Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. The material which is modified may be, for example, a carbohydrate, and the mo...
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WO/1999/049125A2 |
Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. In one embodiment, a material comprising one or more modifiable functional gro...
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WO/1999/040120A1 |
A process for preparing a carboxylated cellulose ester from oxidized cellulose is described. The carboxylated cellulose esters have improved solvent solubility and coating resin compatibility when compared to cellulose esters made from r...
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WO/1999/023118A1 |
The invention relates to the reaction of a polyhydroxy polymer or a derivative thereof with at least one lactone, lactam or one suited carboxylic acid in order to produce a preferably biodegradable polymer resulting in a homogenous melti...
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WO/1999/022599A1 |
Cellulose is surface-modified by coating and/or acylation with C¿2? to C¿24?, in same cases primarily C¿6? to C¿22?, or more narrowly C¿16? to C¿20?, aliphatic acids, to obtain cellulose esters exhibiting a degree of substitution o...
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WO/1998/049200A1 |
The invention concerns reactive cellulose, i.e. having in particular a very low degree of crystallinity obtainable with a high degree of purity. Said novel reactive cellulose is particularly used as raw material for making cellulose ethe...
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WO/1998/041543A1 |
The invention relates to a method for producing cellulose acetate with a DS between 1.5 and 2.9 by reacting cellulose with an acetylation agent. According to said method, the cellulose is reacted with a first acetylation agent using a ba...
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WO/1998/017692A1 |
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 syst...
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WO/1998/001497A1 |
The invention relates to various methods for the acetylation of lignocellulosic fibres such as jute, hemp, wood fibre, sisal, tow, straw and the like, and involves the mixing of the lignocellulosic material acetic anhydride in such quant...
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WO/1997/040074A1 |
The present invention relates to a process for preparing a substituted cellulose acetoacetate alkanoate without using a carboxamide/lithium chloride solvent system. The process involves contacting cellulose in a carboxylic acid diluent w...
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WO/1997/038016A1 |
Cellulose esters according to formula (I): [(C6H7O2)(OR)x(OR')y(OH)3-x-y]n are described, where R is hydrophobic, R' is hydrophilic and not phthalyl or trimellityl, which may be designed, by the proper selection of R, R', x, y, and n, to...
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WO/1997/036037A2 |
Modified cellulosic fibers are formed by (1) esterifying cellulosic fibers with a 1,2-disubstituted alkene that has at least one carboxylic acid group reactive with cellulosic hydroxyl groups and (2) oxidizing the esterified fibers to fo...
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WO/1997/018242A1 |
The present invention relates to a modified cellulose ester containing unsaturated pendant groups which can be prepared by reacting a cellulose ester containing residual hydroxyl groups with, for example, maleic anhydride in acetic acid ...
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WO/1997/017065A1 |
Provided are enteric coating compositions which utilize a low viscosity cellulose acetate phthalate polymer as a film former. The cellulose acetate phthalates have an inherent viscosity of about 0.2 to 0.6 dL/g and phthalyl values of fro...
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