Patents for C08B 1 - Preparatory treatment of cellulose for making derivatives thereof (2,184)
01/1999
01/20/1999EP0789790B1 Regenerated cellulose moulding and process for producing it
01/14/1999DE19729323A1 Verfahren zur Herstellung von Cellulose-Derivaten Process for preparing cellulose derivatives
01/13/1999CN1205014A Process for preparing cellulose suspension
01/12/1999US5858285 Purifying, concentrating, adding microbiocide
01/07/1999WO1999000185A1 Device for draining or storing viscous materials
01/07/1999EP0888468A1 Process for preparing a spinnable, isotropic cellulose solution
01/07/1999CA2263194A1 Device for draining or storing viscous materials
01/05/1999US5856452 Oil bodies and associated proteins as affinity matrices
01/05/1999CA2139399C Redispersible microdenominated cellulose
12/1998
12/23/1998WO1998058015A1 Composition containing fine solid particles
12/23/1998CA2263196A1 Composition containing fine solid particles
12/15/1998US5849151 Continuous digester having means for implementing low dissolved solids profiling
12/15/1998US5849150 Low dissolved solids control in pulp production
12/02/1998EP0880545A1 Method for the preparation of a material with a high water and salt solutions absorbency
11/1998
11/25/1998EP0674662B1 Method of preparing cellulose solutions
11/11/1998CN1040672C Moulding material and spinning raw liquid and preparing method thereof
11/05/1998WO1998049200A1 Reactive cellulose and method for making same
11/05/1998CA2286572A1 Reactive cellulose and method for making same
11/04/1998EP0874927A1 Process for preparation of an aqueous solution of n-methylmorpholin-n-oxide
10/1998
10/28/1998EP0873364A1 Method for producing cellulose derivatives
10/21/1998CN1196762A Process for preparation of aqueous solution of N-methylmorpholin-n-oxide
10/14/1998CN1040216C Process for preparing cellulose diacetate ester
10/06/1998US5817801 Phosphoric acid and/or phosphoric anhydride
09/1998
09/23/1998CN1193982A Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs
09/09/1998EP0802925B1 Forming solutions of cellulose in aqueous tertiary amine oxide
09/08/1998US5804120 Optically anisotropic solution; extrusion with phosphoric acid and/or its anhydrides; coagulation; neutralization
09/02/1998EP0777767B1 Process for making cellulose extrudates
08/1998
08/18/1998US5795979 Water-insoluble glucan purification method
08/11/1998US5792399 Formed shape made of regenerated cellulose and process for its production
08/05/1998CN1039418C Material containing stablizer for moulding or spinning
08/04/1998US5788939 Process for the production of a cellulose moulded body
07/1998
07/28/1998US5786470 Gel production from plant matter
07/22/1998EP0853642A1 Process for preparing a cellulose suspension
07/22/1998CN1039250C Transport of solutions of cellulose through pipes
07/08/1998CN1039042C Formation of cellulose-based premix
07/08/1998CN1039041C Process for producing shaped cellulose bodies
06/1998
06/25/1998WO1998027115A1 Oil bodies and associated proteins as affinity matrices
06/02/1998US5760211 Method of manufacturing cellulose solutions in aqueous amino oxide
05/1998
05/27/1998CN1038513C Solution of cellulose in water and N-methylmorpholine -N -Oxide
05/22/1998WO1998021246A1 Method for producing cellulose derivatives
05/22/1998CA2241800A1 Process for producing cellulose derivatives
05/20/1998CN1182442A Cellulose sponge and process for producing it
05/14/1998DE19646213A1 Verfahren zur Herstellung von Cellulosederivaten Process for the preparation of cellulose derivatives
04/1998
04/30/1998WO1998017848A1 Aqueous coagulating agent for liquid crystal solutions with base of cellulose substances
04/30/1998WO1998017847A1 Coagulating agent for liquid crystal solutions with base of cellulose substances
04/30/1998WO1998017692A1 Preparation of chemically reactive polysaccharides
04/30/1998CA2268789A1 Aqueous coagulating agent for liquid crystal solutions with base of cellulose substances
04/22/1998EP0836622A1 Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs
04/22/1998CN1179781A Process for activating polysaccharides, polysaccharides produced by this process, and use thereof
04/09/1998WO1998014648A1 Method for the manufacture of an extruded lyocell article
03/1998
03/25/1998CN1037846C Tech. for producing microcrystalline cellulose with sulfated waste cotton velvet
02/1998
02/19/1998WO1998006754A1 Method for the production of cellulosic shaped bodies
02/18/1998CN1173904A Microfibrillated cellulose and method for preparing same from primary wall plant pulp, particularly sugar beet pulp
02/12/1998WO1998005702A1 Process for preparing a cellulose suspension
02/12/1998CA2233574A1 Process for preparing a cellulose suspension
02/04/1998EP0822288A2 Continuous digester for the implementaion of dissolved solids profiling
02/04/1998CN1172487A Forming solutions of cellulose in aqueous tertiary amine oxide
01/1998
01/28/1998EP0792393B1 Method of manufacturing a cellulose product
01/28/1998EP0791014B1 Thin-film treatment device
01/22/1998WO1998002464A1 Production of cellulose carbamate
01/22/1998CA2260782A1 Production of cellulose carbamate
01/15/1998DE19628277A1 Verfahren zur Aktivierung eines Cellulose und Harnstoff enthaltenden Gemisches A method of activating a cellulose and urea-containing mixture
01/14/1998EP0818468A2 Process for preparing solutions of cellulose in aqueous amine oxide
01/14/1998EP0817803A1 Process for activating polysaccharides, polysaccharides produced by this process, and use thereof
01/14/1998EP0817802A1 Method of producing solutions of cellulose in water-containing tertiary-amin-n-oxides
01/08/1998WO1998000589A1 Process for preparation of an aqueous solution of n-methylmorpholin-n-oxide
01/08/1998CA2230050A1 Process for preparation of an aqueous solution of n-methylmorpholin-n-oxide
01/07/1998EP0787152B1 Process for producing an aqueous amine oxide solution
12/1997
12/31/1997CN1169150A Thin film treatment device
12/31/1997CN1036851C Process for producing cellulose acetate
12/30/1997US5702515 Solution of polysaccharide in hydrated tertiary amine n-oxide stabilized with aromatic polyphenol or polyamine, thiol compound or precursor thereof
12/29/1997EP0787153B1 Process for re-using an aqueous process fluid from the amine oxide process
12/18/1997WO1997047790A1 Process for preparing a homogeneous cellulose solution using n-methylmorpholine-n-oxide
12/17/1997CN1168160A Method of mfg. cellulose product
12/10/1997EP0811690A1 Water-insoluble glucan purification method
12/10/1997EP0811031A1 Cellulose sponge and process for producing it
12/04/1997DE19624867A1 Improving cellulose solubility in water-containing amine oxide(s)
11/1997
11/19/1997CN1165522A Process for regenerating an aqueous process fluid from the amine oxide process
11/12/1997EP0696330B1 Process for purifying aqueous solutions of tertiary amino oxides
11/12/1997CN1164866A Liquid crystal solutions based on cellulose and at least one phosphoric acid
10/1997
10/29/1997EP0802925A1 Forming solutions of cellulose in aqueous tertiary amine oxide
10/29/1997EP0695324B1 Process for producing cellulose shaped bodies
10/21/1997US5679146 Also containing tertiary amine oxide, nonsolvent, one or more stabilizers having basic and antioxidant action
10/01/1997CN1161044A Process for producing an aqueous amine oxide solution
09/1997
09/24/1997EP0759038B1 Cellulose suspension production process
09/03/1997EP0792393A1 Method of manufacturing a cellulose product
09/03/1997CN2261428Y High performance viscose grinder
09/02/1997US5662775 Countercurrent cooking zone at first level and extraction screen at second level
08/1997
08/27/1997EP0791014A1 Thin-film treatment device
08/21/1997WO1997030090A1 Method for the preparation of a material with a high water and salt solutions absorbency
08/20/1997EP0789790A1 Regenerated cellulose moulding and process for producing it
08/12/1997US5656224 Process for the production of a cellulose suspension
08/07/1997WO1997028298A1 Process for preparing a spinnable, isotropic cellulose solution
08/06/1997EP0787166A1 Stabilised solutions of polysaccharide
08/06/1997EP0787153A1 Process for re-using an aqueous process fluid from the amine oxide process
08/06/1997EP0787152A1 Process for producing an aqueous amine oxide solution
08/05/1997US5653931 Process for the production of cellulose moulded bodies
07/1997
07/31/1997DE19624866C1 Increasing reactivity of pulp or linters to optimum level for cellulose acetate production
07/30/1997CN1155910A Process for making cellulose extrudates
07/30/1997CN1155909A Cellulose solutions and products made therefrom
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