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Class Information
Number: 536/89
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 > Acid employed in subsequent treatment
Description: Processes wherein an organic acid or an inorganic acid is employed in the subsequent treatment.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7166290 |
Methods for producing oocysts |
Jan. 23, 2007 |
| 7098327 |
Dual-functional ion exchange resins from agricultural by-products |
Aug. 29, 2006 |
| 7009046 |
Low-substituted hydroxypropyl cellulose and agent serving both as binder and disintegrant for dry direct compression |
Mar. 7, 2006 |
| 6958394 |
Cellulose ester film |
Oct. 25, 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 |
| 6610669 |
Water insoluble derivatives of polyanionic polysaccharides |
Aug. 26, 2003 |
| 6590092 |
Process for preparing a "universal support" and the reagents used for generating such support |
Jul. 8, 2003 |
| 6525192 |
Low-substituted hydroxypropyl cellulose and process for producing same |
Feb. 25, 2003 |
| 6294008 |
Haze-free cellulose ether capsules and process for making |
Sep. 25, 2001 |
| 6046306 |
PNA synthesis using an amino protecting group which is labile to weak acids |
Apr. 4, 2000 |
| 6030958 |
Water insoluble derivatives of hyaluronic acid |
Feb. 29, 2000 |
| 5776501 |
Coating base for solid enteric pharmaceutical preparations |
Jul. 7, 1998 |
| 5324717 |
Therapeutical composition comprising hydrolyzed carboxylalkyl cellulose |
Jun. 28, 1994 |
| 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 |
| 4981960 |
Modified cellulose for biocompatible dialysis membranes IV and process for preparation thereof |
Jan. 1, 1991 |
| 4697008 |
Production of water-insoluble alkali metal salts of carboxyalkyl cellulose |
Sep. 29, 1987 |
| 4634439 |
pH-regulating Cellulose fiber |
Jan. 6, 1987 |
| 4634438 |
pH-regulating Cellulose products |
Jan. 6, 1987 |
| 4537958 |
Process for preparing cellulose ethers |
Aug. 27, 1985 |
| 4508894 |
Acid-type carboxymethyl cellulose and process for preparing the same |
Apr. 2, 1985 |
| 4294731 |
Method for drying absorbent modified cellulosic polymers and the like |
Oct. 13, 1981 |
| 4249000 |
Modified polymers |
Feb. 3, 1981 |
| 4229572 |
Purification of cellulose ether reaction product |
Oct. 21, 1980 |
| 4166891 |
Visual-type hygrometer |
Sep. 4, 1979 |
| 4107426 |
Process for treating cellulose |
Aug. 15, 1978 |
| 4068068 |
Process for the manufacture of water-absorbing cellulose ethers |
Jan. 10, 1978 |
| 3936441 |
Process for the production of water adsorbing but water-insoluble cellulose ethers |
Feb. 3, 1976 |
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