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Class Information
Number: 536/61
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 > Subsequent treatment process
Description: Compounds in which cellulose xanthate or viscose is purified, recovered, separated, altered physically; or treated chemically wherein the primary intent is merely to modify a property of the product.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7462306 |
Cellulose acylate film, process for producing cellulose acylate film, polarizing plate and liquid crystal display device |
Dec. 9, 2008 |
| 7148344 |
Method for producing cellulose acetate film |
Dec. 12, 2006 |
| 6538130 |
Manufacture of viscose and of articles therefrom |
Mar. 25, 2003 |
| 6515121 |
Method of manufacturing and collecting cellulosic particles |
Feb. 4, 2003 |
| 6045587 |
Method of reducing color and polymerization decay of cellulose viscose |
Apr. 4, 2000 |
| 5684141 |
Aminated cellulosic synthetic fibers |
Nov. 4, 1997 |
| 5324823 |
Adsorbent for cellular fibronectin and a method for fractional purification of fibronectin |
Jun. 28, 1994 |
| 5108596 |
Borous ion-exchanged fine cellulose particles, method for production thereof, and affinity carrier |
Apr. 28, 1992 |
| 5091520 |
Finely particulate cellulose esters of aromatic or aromatic-aliphatic carboxylic acids, process for their preparation, and the use thereof |
Feb. 25, 1992 |
| 4997935 |
Modified cellulose for biocompatible dialysis membranes III and process for preparation thereof |
Mar. 5, 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 |
| 4946953 |
Fine cellulose particles and process for production thereof employing coagulated viscose |
Aug. 7, 1990 |
| 4918180 |
Preparation of cellulose ethers |
Apr. 17, 1990 |
| 4902792 |
Fine cellulose particles and process for production thereof |
Feb. 20, 1990 |
| 4814437 |
Method for preparation of sulfated polysaccharides by treating the polysaccharide with a reducing agent before sulfation |
Mar. 21, 1989 |
| 4443596 |
Viscose rayon filment yarn and process for producing same |
Apr. 17, 1984 |
| 4409384 |
Viscose preparation using low concentration caustic |
Oct. 11, 1983 |
| 4368078 |
Process for the preparation of viscose and process for the spinning of the viscose thus obtained |
Jan. 11, 1983 |
| 4364889 |
Process for preparing a cotton-like rayon fiber |
Dec. 21, 1982 |
| 4343920 |
Polymeric polydentate complexons and a method for their preparation |
Aug. 10, 1982 |
| 4340429 |
Process for improving the filterability of viscoses |
Jul. 20, 1982 |
| 4294731 |
Method for drying absorbent modified cellulosic polymers and the like |
Oct. 13, 1981 |
| 4289875 |
Process for continuous filtration and aging of xanthated alkali cellulose |
Sep. 15, 1981 |
| 4284765 |
Automatic aging analyzer using a motor having a constant torque |
Aug. 18, 1981 |
| 4260739 |
Process and apparatus for preparing a homogeneous solution of xanthated alkali cellulose |
Apr. 7, 1981 |
| 4243776 |
Preparation of non-thrombogenic polymeric material article with platelet anti-aggregative agent |
Jan. 6, 1981 |
| 4215212 |
Regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate |
Jul. 29, 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 |
| 4098996 |
Regenerated cellulose film recovery process |
Jul. 4, 1978 |
| 4081593 |
Process for producing phosphazene fire retardant |
Mar. 28, 1978 |
| 3935022 |
Method for the removal of hemicellulose from hemicellulose-containing caustic liquors |
Jan. 27, 1976 |
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