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Class Information
Number: 536/60
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 > Xanthate or viscose
Description:


Sub-classes under this class:

Class Number Class Name Patents
536/61 Subsequent treatment process 33


Patents under this class:

Patent Number Title Of Patent Date Issued
6538130 Manufacture of viscose and of articles therefrom Mar. 25, 2003
6515121 Method of manufacturing and collecting cellulosic particles Feb. 4, 2003
6475419 Auxiliary agent for the production of cellulose fibers Nov. 5, 2002
6392033 Method for viscose production May. 21, 2002
6262299 Zwitterionic monomer having amino-multicarboxylic acid functionality Jul. 17, 2001
6045587 Method of reducing color and polymerization decay of cellulose viscose Apr. 4, 2000
5880278 Composition containing cellulose formate, capable of forming an elastic, thermoreversible gel Mar. 9, 1999
5454973 Stable dispersible mineral acid slurry of benzidine derivatives Oct. 3, 1995
5358679 Manufacture of regenerated cellulosic fiber by zinc free viscose process Oct. 25, 1994
5032682 Silated polysaccharides Jul. 16, 1991
4959466 Partially esterified polysaccharide (PEP) fat substitutes Sep. 25, 1990
4904258 Biocompatible, hydrophilic material, method of manufacture and uses of same Feb. 27, 1990
4902792 Fine cellulose particles and process for production thereof Feb. 20, 1990
4703117 Process for isolating microbial polysaccharides from their fatty amine adducts Oct. 27, 1987
4443596 Viscose rayon filment yarn and process for producing same Apr. 17, 1984
4410693 Process for preparing cellulose derivatives Oct. 18, 1983
4409384 Viscose preparation using low concentration caustic Oct. 11, 1983
4405324 Absorbent cellulosic structures Sep. 20, 1983
4373098 Process for converting cellulose directly into alkali cellulose Feb. 8, 1983
4368078 Process for the preparation of viscose and process for the spinning of the viscose thus obtained Jan. 11, 1983
4342600 Process for the manufacture of viscoses Aug. 3, 1982
4340429 Process for improving the filterability of viscoses Jul. 20, 1982
4289875 Process for continuous filtration and aging of xanthated alkali cellulose Sep. 15, 1981
4287334 Process for manufacturing viscose Sep. 1, 1981
4284765 Automatic aging analyzer using a motor having a constant torque Aug. 18, 1981
4270914 Process for controlling hemicellulose concentration during the mercerization of cellulose Jun. 2, 1981
4215212 Regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate Jul. 29, 1980
4210747 Process for the preparation of viscose Jul. 1, 1980
4158698 Apparatus for continuous xanthation and production of viscose spinning solution Jun. 19, 1979
4145533 Method for recycling regenerated cellulose scrap Mar. 20, 1979
4136255 Process for making solutions of cellulosic compounds Jan. 23, 1979
4098996 Regenerated cellulose film recovery process Jul. 4, 1978
4081593 Process for producing phosphazene fire retardant Mar. 28, 1978
4076934 Method for controlling oxygen level during continuous xanthation of alkali cellulose Feb. 28, 1978
4075028 Composition for treating cellulose-containing fibrous materials and method of producing composition for treating cellulose-containing materials Feb. 21, 1978
4037039 Process for continuous xanthation and production of viscose spinning solution Jul. 19, 1977



 
 
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