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WO/2002/014393A1 |
The invention relates to a method for producing a polymer dispersion by copolymerisation of 20 - 70 weight parts of a monomer mixture comprising c) 2.5 - 100 wt. % of one or more (meth) acrylic acid esters of monovalent, saturated C¿3?-...
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WO/2002/008516A1 |
Starch dispersions comprising discrete particles of crosslinked cationic starch in an aqueous liquid can be used in papermaking. They can be used as a wet-end additive or in surface coating. The starch dispersions can be prepared by a pr...
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WO/2002/004525A1 |
The invention relates to a highly-substituted carboxyalkyl starch obtained using a special slurry method during which starch is reacted with halocarboxylic acids in an organic-aqueous reaction medium and in the presence of alkali hydroxi...
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WO/2001/096403A1 |
The invention concerns the use, as paper-making additive other than a standard mass additive or water treatment additive, of a starchy composition containing at least a cationic starch material. The invention is characterised in that sai...
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WO/2001/094699A1 |
Paper having improved retention properties made by the addition to the papermaking system of a combination of cationic starch and starch phosphate as a mixture, the starch combination having a select net zeta potential of from about + 20...
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WO/2001/090199A2 |
A cationic starch product, the making of it and its use. The starch product comprises starch (St) and a cationising reagent, which is made from choline or its synthetic equivalent, whereby the cationising reagent has reacted with a part ...
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WO/2001/087986A1 |
Functionalised carbohydrates can be obtained if a carbohydrate is caused to react with an epoxy compound which also contains a double carbon-carbon bond, such as allyl glycidyl ether, to form a hydroxyalkenyl derivative of the carbohydra...
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WO/2001/083887A1 |
The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyd...
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WO/2001/079301A1 |
The invention relates to the field of processing starch. In particular, the invention relates to a process for extruding starch to obtain a starch product having a certain intrinsic viscosity when dissolved or dispersed in water, which p...
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WO/2001/078526A1 |
The invention relates to a gelling agent for production of a reversible gel. The gelling agent is a degraded root or tuber starch comprising at least 95 wt.% of amylopectin, based on dry substance of the starch. The gelling agent accordi...
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WO/2001/077244A2 |
An aqueous adhesive composition with good release properties comprising a water based adhesive and a metal activated dicarboxylic acid anhydride starch derivative as release agent. This adhesive composition is useful in forming coreless ...
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WO/2001/060868A1 |
Single phase gels for preventing the formation of surgical adhesions are disclosed. The gels are prepared by reacting an aqueous solution of a polyanionic polysaccharide, such as hyaluronic acid or carboxymethyl cellulose, with divinyl s...
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WO/2001/051003A2 |
The invention provides novel methods for treating disease based on the medicinal use of lipids and phospholipids covalently bound to physiologically acceptable monomers or polymers. Phosphatidylethanolamine moieties conjugated to physiol...
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WO/2001/044303A1 |
The invention concerns the use as surface-active agent of a glucoside alkyl urethane (I) which is composed of units of the general formula (II): A(O-CO-NH-R)¿S? wherein A represents a glucosyl unit of a starch hydrolysate molecule, the ...
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WO/2001/044304A1 |
A method for oxidising starch with ozone is described. In the oxidation, an ozone-containing gas is contacted with a starch suspension at a positive pressure of 0.1-2.0 MPa. The ozone-containing gas preferably contains 3-15% by weight oz...
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WO/2001/039721A2 |
Disclosed are novel aqueous modified starch solutions, such solutions can contain high levels of the modified starch and remain stable such that on standing, the solution does not form a precipitate, become a non pourable gel, separate o...
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WO/2001/040335A1 |
The invention relates to hydrophilic hydrogel-forming polymers having acid groups and/or alkali or ammonium salts thereof and 1,4-$g(a)-D-glycosidic compounds, which are post-crosslinked on the surface and having a) a CRC parameter of 1,...
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WO/2001/038635A1 |
The invention relates to a process for making paper and to the use of starch in said process. In particular, the invention relates to a process for making paper, wherein in the wet-end a cross-linked starch is added to an aqueous suspens...
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WO/2001/034656A1 |
The present invention relates to a polysaccharide having functional groups, wherein said groups are aldehyde groups formed at positions C2 and/or C3 as well as at position C6 of the anhydroglucose units of the polysaccharide chain. Prefe...
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WO/2001/034657A1 |
In a new process for oxidising a primary and/or secondary alcohol, an oxidising 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...
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WO/2001/034091A2 |
Compositions for cross-linking and/or modifying the properties of polysaccharide containing materials are provided. Methods for cross-linking polysaccharide containing materials include the step of treating polysaccharide structures with...
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WO/2001/034902A2 |
A process for the manufacture of a lignocellulose product, the process comprising the step of mixing in a reaction medium (i) a phenolic polymer being substituted with a phenolic hydroxy group; (ii) a lignocellulose containing material h...
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WO/2001/030731A1 |
The invention concerns a method for preparing a heat-stable and alkali-resistant, non-crystallizable polyol syrup, comprising a step which consists in hydrogenating a sugar syrup and a step which consists in caramelizing the hydrogenated...
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WO/2001/029313A1 |
A modified polysaccharide having enhanced surface charge. The polysaccharide is modified to include a cationic polymer, preferably a polyquaternary amine, and has a surface charge from about +5 to about +20 mV. The modified polysaccharid...
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WO/2001/021664A1 |
The invention concerns a compound derived from a polysaccharide by chemical modification by at least 5 %, and in particular by about 50 % to about 100 % of the total number of monomer units of said polysaccharide, each of the chemically ...
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WO/2001/014394A2 |
Disclosed are derivatized malto-oligosaccharides and methods for the preparation thereof. In accordance with the disclosed invention, a malto-oligosaccharide is hydrogenated to thereby obtain a hydrogenated malto-oligosaccharide, and the...
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WO/2001/012782A2 |
The invention relates to transgenic plant cells and plants which unlike wild-type plant cells and plants synthesize modified plant starch and exhibit reduced GBSSI- and BE-protein activity. The invention also relates to modified starch o...
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WO/2001/012826A2 |
The invention relates to nucleic acid molecules which code for enzymes which are involved in the synthesis of starch in plants. Said enzymes are novel isoforms of starch synthetase. Vectors for the production of transgenic plant cells an...
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WO/2001/010949A1 |
The invention relates to a thermoplastic polymer blend with a bicontinuous phase structure produced from thermoplastic starch, at least from a synthetic polymer and a PVAc-based hydrolysis component, whereby the starch component of the p...
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WO/2001/007485A1 |
The invention relates to a method for carrying out the targeted depolymerization of polysaccharides or polysaccharide derivatives at increased temperatures which comprises the following steps: (i) mixing at least one polysaccharide with ...
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WO/2001/004250A1 |
A polyhydroxyl/phosphate polymer comprising a polyhydroxy moiety and a phosphorous moiety. This polymer is of general structure (I) wherein: each Z is independently selected from the group consisting of H, a, b, c and d; each Q is indepe...
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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/2001/000681A1 |
The invention concerns a process for oxidising a primary alcohol such as a carbohydrate using an oxidising agent in the presence of a catalytic amount of a di-tertiary-alkyl nitroxyl, wherein the alcohol is oxidised using an oxidic compo...
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WO/2000/077229A2 |
Nucleic acid molecules are described encoding an R1-protein from wheat and methods and recombinant DNA molecules for the production of transgenic plant cells and plants synthesizing a modified starch. Additionally, the plant cells and pl...
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WO/2000/075070A1 |
The invention pertains to a process for the regeneration and recovery of periodate from a spent iodate solution, by reacting the iodate with at least an equimolar amount of hypohalite, and carrying out the recovery in the presence of a w...
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WO/2000/073350A2 |
The invention relates to a method of producing powdered hydroxyalkyl starch ethers with hydroxyl numbers of between 350 and 600 and molar substitution rates of 1 to 2, by alkoxylation of alkalized carbohydrates with a propylene-ethylene ...
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WO/2000/073351A1 |
A polysaccharide derivative having a structure formed by replacing part or all of the hydrogen atoms of the hydroxyl groups in a polysaccharide or a derivative thereof with a group represented by the formula (1) -E?1¿-(OA)¿n?-E?2¿-R (...
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WO/2000/069916A1 |
A process for producing biopolymer nanoparticles is described, in which the biopolymer is plasticised using shear forces, a crosslinking agent being added during the processing. After said processing, the biopolymer can be dissolved or d...
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WO/2000/068272A1 |
The invention relates to substituted polysaccharide sulfates, consisting of a polysaccharide chain with an average molecular weight of 10000 to 200000 that contains 1 - 16 % sulfur in the form of sulfate ester groups and 0.01 to 1 substi...
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WO/2000/066633A1 |
The invention relates to glucose soluble polymers which do not substantially contain any $g(b) glucosidic bonds, characterized in that they comprise 2.5 -10 % $g(a)-1,6 gluocosidic bonds, have a very low or zero tendency to retrograde in...
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WO/2000/061639A1 |
The invention relates to oxidized starch which can be obtained by oxidizing native starch in an acid solvent. According to the invention, a) the oxidant is introduced in to the acid starch solution at quantities of between 0.1 and 1.9 eq...
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WO/2000/060167A1 |
The invention relates to a method for modifying starch by heating the starch in an aqueous medium to temperatures greater than the pasting temperature of the starch in the presence of (a) a polymer cationization agent selected from the g...
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WO/2000/050621A2 |
A process for producing aldehydes, and/or carboxylic acids is described, in which a primary alcohol, especially a carbohydrate, is oxidised using a catalytic amount of a nitrosonium compound obtained by oxidising a nitroxyl compound in t...
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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/2000/050388A1 |
A process for producing nitrosonium ions is described, in which a nitroxyl compound such as TEMPO is oxidised using an oxidising agent in the presence of a complex of a transition metal such as Mn, Fe, Cu, and a complexing agent such as ...
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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/2000/047629A1 |
Disclosed are a method and process for preparing a hydroxyalkyl starch. In accordance with the disclosed invention, the starch is treated with an enzyme under conditions to increase the susceptibility of the starch to hydroxyalkylation b...
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WO/2000/045802A2 |
The present invention provides methods of promoting the healing of cutaneous wounds and ulcers in vertebrates by administering a composition of a branched chain polymeric $g(a)-D-glucan to the wound or ulcer. In a preferred embodiment, t...
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WO/2000/043423A1 |
Modified polysaccharides (such as starches, gums, chitosans, celluloses, alginates, sugars, etc.), which are commonly used in the paper industry as strengthening agents, surface sizes, coating binders, emulsifiers and adhesives, can be c...
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WO/2000/042075A1 |
The invention relates to malatyl polysaccharides which are obtained by reacting polysaccharides and cis epoxy succinate or epoxy carboxylic acids. The invention further relates methods for producing them and to their use in washing agent...
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