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Class Information
Number: 536/97
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carbohydrates or derivatives > Cellulose or derivative > Ethers > Carboxyalkyl or salts thereof
Description: Compounds wherein the etherifying radical is the carboxyalkyl radical or a salt thereof.


Sub-classes under this class:

Class Number Class Name Patents
536/98 Carboxymethyl or salts thereof 113


Patents under this class:

Patent Number Title Of Patent Date Issued
7541396 Method for making carboxyalkyl cellulose Jun. 2, 2009
6686464 Cellulose ethers and method of preparing the same Feb. 3, 2004
6669863 Anionic cellulose ethers having temperature-dependent associative properties Dec. 30, 2003
6602994 Derivatized microfibrillar polysaccharide Aug. 5, 2003
6593468 Essentially fiber-free cellulose ether with improved water retention, method for the production and use thereof Jul. 15, 2003
6541614 Polysaccharide derivative Apr. 1, 2003
6482876 Agglomerates for the production of an aqueous binder system Nov. 19, 2002
6111011 Cellulose ethers containing butenyl groups and use thereof as protective colloids in polymerizations Aug. 29, 2000
5898072 Aqueous suspension of a cellulose ether, method for the production thereof, and composition Apr. 27, 1999
5808052 Use of cellulose mixed ethers as additives for earth pressure shields Sep. 15, 1998
5804166 Low VOC hair sprays containing cellulose ethers Sep. 8, 1998
5801239 Process for the preparation of alkali salt of carboxy alkyl cellulose Sep. 1, 1998
5719274 Process for the preparation of low molecular weight cellulose ethers Feb. 17, 1998
5589589 Process for screening cellulose ethers Dec. 31, 1996
5541316 Process for the production of polysaccharide-based polycarboxylates Jul. 30, 1996
5498705 Modified polysaccharides having improved absorbent properties and process for the preparation thereof Mar. 12, 1996
5470964 Process for the preparation of modified polysaccharides having improved absorbent properties Nov. 28, 1995
5463036 Carboxymethylcellulose and its use in textile printing Oct. 31, 1995
5455341 Highly substituted carboxymethyl sulfoethyl cellulose ethers (CMSEC), a process for their production and their use in textile printing Oct. 3, 1995
5442054 Highly substituted sulphoalkycellulose derivatives, especially sulphoethycellulose ether, a process for their preparation and their use as thickening agent for textile printing pastes Aug. 15, 1995
5358561 Use of water-soluble sulphoalkyl derivatives of cellulose in gypsum-and cement-containing compounds Oct. 25, 1994
5346541 Water dispersible formulations and materials and methods for influencing their water dispersibility Sep. 13, 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
5247072 Carboxyalkyl polysaccharides having improved absorbent properties and process for the preparation thereof Sep. 21, 1993
5218107 Removal of undesirable material from water-soluble cellulose ether aqueous solutions Jun. 8, 1993
5196527 Porous ion-exchanged fine cellulose particles, method for production thereof, and affinity carrier Mar. 23, 1993
5166336 Method for production of a corn milling residue carboxymethyl ether salt Nov. 24, 1992
5055570 Cuprammonium-stable cellulose esters and carbamates for dialysis membranes Oct. 8, 1991
5013832 Process for working up water-soluble cellulose derivatives having high flocculation points May. 7, 1991
5008385 Cellulose derivatives and fibers and membranes made therefrom Apr. 16, 1991
5001231 Invert emulsion polysaccharide slurry Mar. 19, 1991
4997935 Modified cellulose for biocompatible dialysis membranes III and process for preparation thereof Mar. 5, 1991
4992538 Silated polysaccharides Feb. 12, 1991
4981959 Modified cellulose for biocompatible dialysis membranes II and process for preparation thereof Jan. 1, 1991
4981960 Modified cellulose for biocompatible dialysis membranes IV and process for preparation thereof Jan. 1, 1991
4972007 Use of cellulose derivatives in drilling fluids Nov. 20, 1990
4940785 Method of preparing cellulose ethers containing tertiary or quaternary nitrogen Jul. 10, 1990
4897473 Homologation of carbonyloxy containing compounds Jan. 30, 1990
4883761 Pertussis toxin gene: cloning and expression of protective antigen Nov. 28, 1989
4584370 Process for the production of calcium cellulose glycolate Apr. 22, 1986
4508893 Process for the preparation of a powdery calcium cellulose glycolate Apr. 2, 1985
4507474 Process for highly substituted carboxyalkyl celluloses and mixed ethers thereof Mar. 26, 1985
4340731 Polycarboxyalkyl-cellulose having high fluid absorbing and retaining properties, and process for preparing same Jul. 20, 1982
4306061 Preparation of CMC with improved substituent uniformity using borax Dec. 15, 1981
4294731 Method for drying absorbent modified cellulosic polymers and the like Oct. 13, 1981
4015067 Method of preparing polysaccharide ethers and apparatus Mar. 29, 1977



 
 
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