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7098327 |
Dual-functional ion exchange resins from agricultural by-products
A process for the production of dual-functional ion exchange resins from lignocellulosic agricultural material involving anionization of the lignocellulosic agricultural material with citric acid...
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6933381 |
Method of preparing modified cellulose ether
Process for the production of polysaccharide ethers, e.g. cellulose ethers, are disclosed wherein salts formed during the process, e.g., sodium nitrate or sodium acetate, are converted to their...
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6806364 |
Ophthalmic compositions
An aqueous ophthalmic solution containing 0.2 to 2.5 percent by weight a polymeric demulcent, 0.045 to 0.065 percent by weight a calcium salt, and 0.14 to 1.4 percent by weight a phosphate salt....
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6602994 |
Derivatized microfibrillar polysaccharide
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...
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6586391 |
Method of ameliorating erectile dysfunction
The mechanism of hypertension following acute NO synthase blockage is via endothelin-mediated vasoconstriction. Thus, NO appears to inhibit endothelin activity by blocking its expression and not as...
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6562961 |
Aminoalkyl trialkyl silyl cellulose and a method for coating surfaces
The invention relates to polysaccharide derivatives comprising a) at least one hydrophobic and b) at least one nitrogen-containing substituent; in particular, the derivative is a cellulose ether...
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6369132 |
Fine particle size low bulk density thermoplastic polymers
Fine particulate thermoplastic polymers [e.g., hydrophobically modified polyether-polyurethanes, polyacrylates, polyvinyl alcohol, polyether-polyols, polyacrylamide, aminoplast-polyethers and...
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6265570 |
Cold water soluble starch aldehydes and the method of preparation thereof
Stable, cold water soluble, ready for use starch aldehyde compositions and the method of preparation of such compositions wherein an aqueous dispersion of a converted starch acetal is hydrolyzed...
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6121439 |
Waterborne coatings with cationically modified associative ethers
A coating composition is composed of a water-soluble polysaccharide composition comprising at least one hydrophobic group selected from aryl, alkyl, alkenyl, aralkyl and mixtures thereof and at...
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6075166 |
Photolytically cleavable encoding and linking agents for use in combinatorial chemistry
The present invention is to novel photochemically cleavable aryl sulfonamides of the formula P--A 3 --A 2 --A 1 --S(O) 2 NR 1 R 2 wherein R 1 and R 2 are independently selected from...
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5908845 |
Polyether nucleic acids
A compound comprising a polyether backbone bearing a plurality of ligands that are individually bound to chiral carbon atoms located within said backbone, at least one of said ligands including a...
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5792856 |
Process for preparing carboxyalkyl cellulose esters
This invention provides certain carboxymethyl cellulose (CMC) esters of higher acids (e.g., CMC acetate propionate, CMC propionate, CMC acetate butyrate, and CMC butyrate). These new ether...
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5739304 |
Process for the preparation of water-soluble aminoalkyl derivatives of polysaccharides
Water-soluble polysaccharides which contain a) substituents selected from the group consisting of alkyl, hydroxyalkyl, carboxyalkyl and sulfoalkyl, b) N,N-disubstituted aminoalkyl groups, are...
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5614616 |
Process for the production of polysaccharides
Polysaccharides corresponding to formula (I) ##STR1## in which S is a recurrent monosaccharide unit and B is a group of formula (Ia) attached to the monosaccharide unit S by an O atom ##STR2##...
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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...
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5595980 |
Contraceptive compositions
Improved contraceptive compositions are disclosed which comprise a spermicide or virucide, a polymeric delivery component and optionally a cosmetic ingredient. The improvement is directed to the...
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5552485 |
Ethylenically unsaturated polymeric alkoxysilanes useful for treating fluoroaluminosilicate glass
Fluoroaluminosilicate dental cement glasses are treated with an aqueous silanol treating solution and optionally with an additional organic compound. The treated glasses form cements with improved...
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5426182 |
Polysaccharides containing complex hydrophobic groups
Polysaccharides, including hydroxyethyl cellulose, having complex hydrophobic group substitution, provide latex compositions, such as paints, with improved rheology and stability. Improved...
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5407919 |
Double-substituted cationic cellulose ethers
Double-substituted, water-soluble, cellulose ethers substituted with a cationic substituent and a hydrophobic substituent are disclosed. The levels of substitution for the cationic substituent and...
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5260472 |
Efficient chemoenzymatic synthesis of D-myo-inositol 1,4,5-triphosphate, D-myo-inositol 1,3,4-triphosphate, and D-myo-inositol 1,3,4,5-tetraphosphate
Multigram quantities of Ins(1,4,5) P 3 , Ins(1,3,4) P 3 , and Ins(1,3,4,5)P 4 are prepared in their enantiomerically pure forms from the two enantiomers of 1,2:5,6-di-O-cyclohexylidene...
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5093489 |
Modified chitin for biocompatible dialysis membranes IV and process for preparation of modified cellulose and modified chitin for use therewith
A modified cellulose and/or chitin for biocompatible dialysis membranes having a structure represented by the formula ##STR1## wherein Cell is cellulose or chitin, in each case without hydroxyl...
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5004808 |
Aminoalkyl-derivatives of hydroxyalkyl-celluloses
A product comprising a water soluble, high molecular weight aminoalkyl-derivative of hydroxyalkyl-cellulose. The molecular weight of said cellulose is at least 50,000 daltons. One of the methods to...
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4973641 |
Polysaccharide graft copolymers containing reactive aminoethyl halide group
A polysaccharide graft copolymer containing a reactive aminoethyl halide group is provided, said copolymer represented by: Sacch--g--(M) a --(T) b where Sacch is a polysaccharide base substrate,...
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4788280 |
Polysaccharide derivatives containing aldehyde groups on an aromatic ring, their preparation from the corresponding acetals and use in paper
Polysaccharide aldehydes having the formula ##STR1## or Sacch--O--CH 2 --Ar--CHO (II) such as starch, cellulose, and gum aldehydes, are useful as paper additives for imparting strength and as the...
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4731162 |
Polysaccharide derivatives containing aldehyde groups for use as paper additives
Polysaccharide aldehydes having the general structure ##STR1## such as starch, cellulose and gum aldehydes, are useful for imparting wet, dry, or temporary wet strength to paper. They are prepared...
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4557951 |
Cellulosic organic solvent soluble products
The invention provides an improved cellulosic ester or ether product with a degree of ester or ether substitution of between 2.0 and about 2.9 which is derivatized or further reacted by reaction...
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4531000 |
Processes for the preparation of branched, water soluble cellulose products
A process for preparing n-amino-n-deoxy cellulose where n is 2 or 3 and has the same value at each occurrence in one molecule. When n is 2 cellulose is selectively oxidized by (a) reacting it with...
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4526961 |
Process for etherifying cellulose with alkyl monochloroacetates
Disclosed is a process for preparing water-soluble sodium carboxymethyl cellulose (NaCMC), including mixed ethers of NaCMC, by etherifying cellulose with alkyl monochloroacetates in an...
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4474950 |
Cellulose ethers having improved dispersing properties
Modified cellulose reaction products, which are dispersible in aqueous media over a broad pH range without lump formation, are prepared by reacting water-soluble cellulose ether with a specified...
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4460766 |
Dispersing auxiliary for preparing cellulose ethers
In modern processes for preparing cellulose ethers containing one or more types of substituents, such as MC, CMC, HEC, HPC, MHEC or EHEC, cellulose is reacted with an etherifying agent in the...
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4438262 |
Highly dielectric polysaccharides
Highly dielectric organic compounds can be obtained by cyanoethylating a dihydroxyalkylate of a water-soluble polysaccharide or a derivative thereof with acrylonitrile.
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4413121 |
Cellulose ethers and cellulose mixed ethers having at least one phosphorus-containing substituent, and process for their manufacture
Disclosed is a cellulose ether having at least one phosphorus-containing substituent or a mixed ether of said cellulose ether having in addition at least one phosphorus-free substituent comprising...
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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...
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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...
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4172736 |
Thickener for reactive dyes
Thickening of "cellulose reactive dyes" with carboxyethyl guar.
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4009329 |
Bioresistant cellulose ethers
Cellulose ethers which are resistant to enzyme catalyzed hydrolysis can be prepared by using a mixture of sodium and lithium hydroxides as the catalysts in conjunction with etherification reagents,...
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3896107 |
Derivatized ethyl cellulose
Modified cellulose derivatives are disclosed which contain tertiary amine group substituents in the amount of 0.05 to 0.4 mole per anhydroglucose unit of the cellulose. The modified ethyl cellulose...
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3664999 |
METHOD FOR PRODUCTION OF CELLULOSE ION EXCHANGERS
A method for the manufacture of cellulose ion exchangers, such as carboxymethylcellulose, diethylaminoethylcellulose, and ECTEOLA-cellulose, by treating moist disintegrated cellulose with sodium...
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3526475 |
DIETHYLAMINOETHYLATED CELLULOSE-EPOXIDE REACTION PROCESS
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3431254 |
MODIFIED HYDROXYPROPYL CELLULOSE AND PROCESS
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3357971 |
Mixed cellulose ethers
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3341483 |
Anionic graft polymerization of vinyl monomers on natural polyhydroxy compounds, their derivatives and on synthetic polyhydroxy polymers
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3093629 |
Water insoluble cyanoethylated hydroxyethyl cellulose of high nitrogen content
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2824779 |
Carbamoylethyl, carboxyethyl, and aminoethyl cellulose ether textile fibers and process of making the same
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3833527 |
Title is not available
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3832313 |
Title is not available
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3761465 |
Title is not available
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3567360 |
Title is not available
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