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Class Information
Number: 536/59
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carbohydrates or derivatives > Cellulose or derivative > Esters > Sulfur containing acid
Description: Compounds in which the acid moiety contains sulfur.










Sub-classes under this class:

Class Number Class Name Patents
536/60 Xanthate or viscose 37


Patents under this class:
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Patent Number Title Of Patent Date Issued
8710213 Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals Apr. 29, 2014
8637659 Mono-and disaccharide derivatives Jan. 28, 2014
8309708 Crystalline sulphated cellulose II and its production from sulphuric acid hydrolysis of cellulose Nov. 13, 2012
7714124 Methods for modifying cellulosic polymers in ionic liquids May. 11, 2010
7087571 Alkyl polyglycoside derived sulfosuccinates Aug. 8, 2006
6960344 Use of imine-forming polysaccharides as adjuvants and immunostimulants Nov. 1, 2005
6924010 Low solution viscosity cellulose triacetate and its applications thereof Aug. 2, 2005
6800754 Method for producing cellulose sulfoacetate derivatives and products and mixtures thereof Oct. 5, 2004
6632801 Method and composition for inhibiting human cholesterol esterase Oct. 14, 2003
6579977 Biosorbents and process for producing the same Jun. 17, 2003
6515121 Method of manufacturing and collecting cellulosic particles Feb. 4, 2003
6281350 Methods for the reduction of bleeding of lignosulfonates from lignosulfonate-treated substrates Aug. 28, 2001
6211357 Strengthening compositions and treatments for lignocellulosic materials Apr. 3, 2001
6143730 Preparation and use of sulfated oligosaccharides Nov. 7, 2000
6034140 Bioresorbable compositions of carboxypolysaccharide polyether intermacromolecular complexes and methods for their use in reducing surgical adhesions Mar. 7, 2000
6030495 Method for increasing brightness in pulp paper and polymeric materials Feb. 29, 2000
5986087 Sulfonation of regenerated cellulose with sulfonated polymers and use of the thus modified fibres Nov. 16, 1999
5907037 Cellulosic ion-exchange medium, and method of making and using the same May. 25, 1999
5900478 Activated mono-, di-, and polysaccharides reaction products thereof, their preparation and uses May. 4, 1999
5880278 Composition containing cellulose formate, capable of forming an elastic, thermoreversible gel Mar. 9, 1999
5770739 Non-aqueous hydrogen peroxide complex Jun. 23, 1998
5739316 Cross-linked cellulose hydrate membranes Apr. 14, 1998
5739115 Sulfated maltooligosaccharides with heparin-like properties Apr. 14, 1998
5717087 Thermoplastic and biodegradable polysaccharide esters/polysaccharide ether esters containing maleic acid addition product groups Feb. 10, 1998
5703225 Sulfonated cellulose having improved absorbent properties Dec. 30, 1997
5521303 Method of manufacturing non-absorbable synthetic sulfated polysaccharides May. 28, 1996
5498705 Modified polysaccharides having improved absorbent properties and process for the preparation thereof Mar. 12, 1996
5488102 Polymerisable carbohydrate esters, polymers therefrom and their use Jan. 30, 1996
5484777 Pancreatic cholesterol esterase inhibitor Jan. 16, 1996
5473061 Process for the treatment of cellulose Dec. 5, 1995
5470964 Process for the preparation of modified polysaccharides having improved absorbent properties Nov. 28, 1995
5447859 Method for the purification or removal of retroviruses using sulfated cellulose Sep. 5, 1995
5378828 Process for preparing soluble alkali metal salts of cellulose sulfate using chlorosulfuric acid and pyridine Jan. 3, 1995
5371207 Pressure pretreatment for improving the acetylation of cellulose Dec. 6, 1994
5324823 Adsorbent for cellular fibronectin and a method for fractional purification of fibronectin Jun. 28, 1994
5252340 Method of producing an absorbent composition Oct. 12, 1993
5093488 Modified chitin for biocompatible dialysis membranes III and process for preparation of modified cellulose and modified chitin for use therewith Mar. 3, 1992
5093486 Modified chitin for biocompatible dialysis membranes II and process for preparation of modified cellulose and modified chitin for use therewith Mar. 3, 1992
5093489 Modified chitin for biocompatible dialysis membranes IV and process for preparation of modified cellulose and modified chitin for use therewith Mar. 3, 1992
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
4990597 Process for the purification of placental tissue protein PP4 Feb. 5, 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
4948881 Process for the depolymerization and sulfation of polysaccharides Aug. 14, 1990
4822681 Activated polymer solid bodies and processes for the production thereof Apr. 18, 1989
4814437 Method for preparation of sulfated polysaccharides by treating the polysaccharide with a reducing agent before sulfation Mar. 21, 1989
4801699 Polysaccharide esters containing acetal and aldehyde groups Jan. 31, 1989
4656261 Lipoprotein adsorbent for use in extracorporeal circulation treatment and process for preparing thereof Apr. 7, 1987
4654420 Lipoprotein adsorbent for use in extracorporeal circulation treatment and process for preparing thereof Mar. 31, 1987

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