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Class Information
Number: 536/85
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carbohydrates or derivatives > Cellulose or derivative > Ethers > Subsequent treatment process
Description: Processes in which a cellulose ether is purified, recovered, separated, altered physically; or treated chemically wherein the primary intent is merely to modify a property of the cellulose ether.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7351422 |
Hemostatic soluble cellulose fibers containing coagulating protein for treating wound and process for producing the same |
Apr. 1, 2008 |
| 7319146 |
Nonionic cellulose ether and its use |
Jan. 15, 2008 |
| 7244840 |
Admixture, extrudable hydraulic composition and method for the selection of admixture |
Jul. 17, 2007 |
| 7151173 |
Admixture, extrudable hydraulic composition and method for the selection of admixture |
Dec. 19, 2006 |
| 7098327 |
Dual-functional ion exchange resins from agricultural by-products |
Aug. 29, 2006 |
| 7064113 |
Resin composition, method of molding the same, and method of recycling resin composition |
Jun. 20, 2006 |
| 7049436 |
Carbon dioxide compatible non-aqueous crosslinked fracturing fluids and methods for their use |
May. 23, 2006 |
| 7026471 |
Purification method of hydroxypropylmethyl cellulose phthalate |
Apr. 11, 2006 |
| 7022837 |
Cellulose ethers and method of preparing the same |
Apr. 4, 2006 |
| 7012139 |
Process of preparing delayed-dissolution cellulose ethers |
Mar. 14, 2006 |
| 7009046 |
Low-substituted hydroxypropyl cellulose and agent serving both as binder and disintegrant for dry direct compression |
Mar. 7, 2006 |
| 6960660 |
Water-soluble cellulose ether having improved filtering characteristics and selection method |
Nov. 1, 2005 |
| 6943247 |
Building material compositions |
Sep. 13, 2005 |
| 6924369 |
Water-soluble, sulfoalkyl-containing, hydrophobically modified cellulose ethers, process for preparing them, and their use as protective colloids in polymerizations |
Aug. 2, 2005 |
| 6921820 |
Method for forming cellulose |
Jul. 26, 2005 |
| 6914139 |
Solution of cellulose acylate dissolved in mixed solvent of ketone and ester |
Jul. 5, 2005 |
| 6896725 |
Aldehyde-containing polymers as wet strength additives |
May. 24, 2005 |
| 6849729 |
Low-substituted cellulose ether powder and production process thereof |
Feb. 1, 2005 |
| 6683031 |
Rope handling system |
Jan. 27, 2004 |
| 6600034 |
Method of producing cellulose polymers |
Jul. 29, 2003 |
| 6525192 |
Low-substituted hydroxypropyl cellulose and process for producing same |
Feb. 25, 2003 |
| 6506712 |
Method of manufacturing a multifunctional additive and using the same |
Jan. 14, 2003 |
| 6320043 |
Process for preparing fine-particle polysaccharide derivatives |
Nov. 20, 2001 |
| 6294008 |
Haze-free cellulose ether capsules and process for making |
Sep. 25, 2001 |
| 6111011 |
Cellulose ethers containing butenyl groups and use thereof as protective colloids in polymerizations |
Aug. 29, 2000 |
| 6068697 |
Polysaccharide derivatives and hydraulic compositions |
May. 30, 2000 |
| 5840882 |
Process for preparing cellulose ethers with recovery of alkali |
Nov. 24, 1998 |
| 5808052 |
Use of cellulose mixed ethers as additives for earth pressure shields |
Sep. 15, 1998 |
| 5719274 |
Process for the preparation of low molecular weight cellulose ethers |
Feb. 17, 1998 |
| 5583214 |
Dual functional cellulosic additives for latex compositions |
Dec. 10, 1996 |
| 5527902 |
Bead-shaped cellulose products for separating and carrier materials and their manufacture |
Jun. 18, 1996 |
| 5519130 |
Purification process by decomposition of haloalkanolic acid with dehalogenase |
May. 21, 1996 |
| 5504201 |
Process for recovering salable cellulose ethers from an aqueous medium containing such cellulose ethers |
Apr. 2, 1996 |
| 5500124 |
Process for the purifying working-up of reaction media and/or wash media obtained during preparation of cellulose ethers |
Mar. 19, 1996 |
| 5422402 |
Method of improving the ocular haemo and biocompatibility of synthetic polymers |
Jun. 6, 1995 |
| 5360902 |
Process for producing methyl hydroxyalkyl cellulose ethers |
Nov. 1, 1994 |
| 5346542 |
Aqueous dispersion of enteric polymers and a method for producing the same |
Sep. 13, 1994 |
| 5324717 |
Therapeutical composition comprising hydrolyzed carboxylalkyl cellulose |
Jun. 28, 1994 |
| 5316705 |
Process for the production of cellulose ester fibrets |
May. 31, 1994 |
| 5298584 |
Anionically dyeable smooth-dry crosslinked cellulosic material created by treatment of cellulose with reactive swelling agents and nitrogen based compounds |
Mar. 29, 1994 |
| 5294702 |
Water-soluble polymerizable 3-allyloxy-2-hydroxypropylether of cellulose |
Mar. 15, 1994 |
| 5292828 |
Polymers containing complex hydrophobic groups |
Mar. 8, 1994 |
| 5290829 |
Perfluorinated alkyl hydrophobe hydroxyalkylcellulose associative thickeners |
Mar. 1, 1994 |
| 5218107 |
Removal of undesirable material from water-soluble cellulose ether aqueous solutions |
Jun. 8, 1993 |
| 5008385 |
Cellulose derivatives and fibers and membranes made therefrom |
Apr. 16, 1991 |
| 4997935 |
Modified cellulose for biocompatible dialysis membranes III and process for preparation thereof |
Mar. 5, 1991 |
| 4992538 |
Silated polysaccharides |
Feb. 12, 1991 |
| 4985152 |
Process for separating solvents used in the purification of products |
Jan. 15, 1991 |
| 4981960 |
Modified cellulose for biocompatible dialysis membranes IV and process for preparation thereof |
Jan. 1, 1991 |
| 4981959 |
Modified cellulose for biocompatible dialysis membranes II and process for preparation thereof |
Jan. 1, 1991 |
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