Patents for C08B 17 - Apparatus for esterification or etherification of cellulose (126)
12/2014
12/24/2014CN204039309U 一种羟丙基甲基纤维素生产系统中的余热回收装置 One kind of hydroxypropyl methyl cellulose production waste heat recovery system
10/2014
10/09/2014WO2014165513A2 Ethylsulfonated hyaluronic acid biopolymers and methods of use thereof
05/2014
05/14/2014CN203593715U 羧甲基纤维素钠原料预处理装置 Sodium carboxymethyl cellulose feedstock pretreatment device
03/2014
03/19/2014CN203487069U Production system of polyquaternium-10 or positive ion guar gum
03/12/2014CN203474697U Cellulose ether reaction device
01/2014
01/14/2014US8628593 Process to separate lipids from lipid-containing biomass for producing platform chemicals and/or liquid biofuels
11/2013
11/27/2013CN203307263U Etherification reaction kettle
08/2013
08/14/2013CN103242456A Multipurpose etherifying machine
08/14/2013CN103242455A Special etherification machine for CMC (carboxymethyl cellulose)
06/2013
06/19/2013CN103159862A Production technology of alkalization step by step and etherification for one step
04/2013
04/17/2013EP2580251A1 Method for the preparation of a particulate reversibly crosslinked polymeric material
04/17/2013CN103052700A Method for treating soil material
04/10/2013EP2576727A1 Method for treating soil material
03/2013
03/13/2013CN202786071U Discharging device for hazardous chemical substances for producing cellulose ether
02/2013
02/13/2013CN102933615A Method for the preparation of particulate reversibly crosslinked polymeric material
01/2013
01/09/2013CN202658109U Rectification tower for producing cellulose ether
12/2012
12/12/2012CN202595013U Pulse dust remover for cellulose ether production
09/2012
09/26/2012CN202450013U Etherification reaction device for cellulose ether
08/2012
08/16/2012DE102009012161B4 Verfahren zur Herstellung von Polysaccharidderivaten Process for the preparation of polysaccharide derivatives
03/2012
03/28/2012CN102391382A Automatic control method for reaction kettle for producing cellulose ether
12/2011
12/15/2011WO2011154759A1 Method for the preparation of a particulate reversibly crosslinked polymeric material
12/08/2011WO2011151523A1 Method for treating soil material
12/08/2011CA2801050A1 Method for treating soil material
08/2011
08/10/2011EP2032608B1 Process for reducing the average molecular weight of cellulose ethers
07/2011
07/27/2011CN101466739B Process for reducing the average molecular weight of cellulose ethers
07/13/2011CN102124033A Process for continuous catalytic acetylation
04/2011
04/20/2011EP2310420A1 Process for continuous catalytic acetylation
01/2011
01/26/2011CN101392028B Horizontal type etherifying reactor
12/2010
12/09/2010DE102005011367B4 Verfahren zur Herstellung von Cellulosesulfat mit verbesserten Eigenschaften A process for the production of cellulose sulfate with improved characteristics
09/2010
09/09/2010DE102009012161A1 Verfahren zur Herstellung von Polysaccharidderivaten Process for the preparation of polysaccharide derivatives
03/2010
03/24/2010CN201427940Y Water circulation recycling device for cellulose ether production
02/2010
02/04/2010WO2010012430A1 Process for continuous catalytic acetylation
10/2009
10/08/2009WO2009094531A3 Reactor pump for catalyzed hydrolytic splitting of cellulose
09/2009
09/09/2009CN100537605C Industrial preparing method and device for methyl hydroxy alkyl cellulose
07/2009
07/30/2009WO2009094531A2 Reactor pump for catalyzed hydrolytic splitting of cellulose
03/2009
03/25/2009CN101392028A Horizontal type etherifying reactor
03/11/2009EP2032608A1 Process for reducing the average molecular weight of cellulose ethers
10/2008
10/09/2008DE102007017014A1 Verfahren zur Herstellung wasserarmer Nitrocellulose-Lösungen Process for the preparation of low-water nitrocellulose solutions
06/2008
06/12/2008DE102006057188A1 Celluloseether für Feststoffformulierungen Cellulose ethers for solid formulations
03/2008
03/27/2008DE102006042892A1 Acylation of polysaccharide, e.g. to make cellulose acetate for applications in textiles, food, building and paints, involves making a solution of cellulose in an organic ionic liquid and reacting with acylating agent
01/2008
01/03/2008DE102006030696A1 Acylating poly- or oligo- saccharide comprises dissolving the saccharide in an ionic liquid, treating the mixture with an acid under the supplement of water, and treating the obtained saccharide with an acylating agent
01/02/2008EP1872848A1 Biconical mixer, comprising flow breaker elements
12/2007
12/21/2007WO2007145709A1 Process for reducing the average molecular weight of cellulose ethers
12/20/2007DE102006028165A1 Verfahren zur Acylierung von Cellulose A process for the acylation of cellulose
11/2006
11/14/2006CA2429079C Process for manufacturing cellulose acetate
09/2006
09/28/2006DE102005013893A1 Water-absorbing polysaccharides for use e.g. in hygiene articles, flood prevention or food processing are obtained by using polyphosphates or polyphosphoric acids as crosslinking agents
09/14/2006DE102005011367A1 Verfahren zur Herstellung von Cellulosesulfat mit verbesserten Eigenschaften A process for the production of cellulose sulfate with improved characteristics
06/2006
06/08/2006DE102004058577A1 Anionische Cellulosenitrat-Derivate und wässrige Dispersionen hiervon Anionic cellulose nitrate derivatives and aqueous dispersions thereof
02/2006
02/21/2006US7001483 utilizing the wood pulp mill bleach plant; pulp bleaching stage, washer, mixers for pulp, carboxylation chemicals and stabilizer supplies, small reaction chamber; catalytic oxidation system with hindered heterocyclic oxammonium or amine catalysts
01/2006
01/25/2006CN1238383C Process for manufacturing cellulose acetate and process for manufacturing oligosexylan
01/10/2006US6984731 Process for manufacturing cellulose acetate
06/2005
06/22/2005EP1542791A1 Mixing device and covering device, use thereof and method for modifying and derivatising carbohydrates
05/2005
05/25/2005CN1203111C Continuous method and appts. for drying gel shaped polymer and shaping gel
02/2005
02/10/2005US20050028952 Apparatus for making carboxylated pulp fibers
02/09/2005EP1505198A1 Apparatus for making carboxylated pulp fibers
02/05/2005CA2475664A1 Apparatus for making carboxylated pulp fibers
02/02/2005CN1187375C Method for continuous production of carbamate cellulose
10/2004
10/13/2004EP1466926A2 Process for manufacturing xylooligosaccharides
04/2004
04/08/2004WO2004028675A1 Mixing device and covering device, use thereof and method for modifying and derivatising carbohydrates
01/2004
01/14/2004CN1467225A Process for manufacturing cellulose acetate
01/02/2004EP1375522A2 Process for manufacturing cellulose acetate
01/01/2004US20040002598 Process for manufacturing cellulose acetate
12/2003
12/23/2003US6667395 Batchwise reaction of cellulose with sodium hydroxide, then with methyl chloride and ethylene oxide, then milling
12/04/2003US20030223923 A portable reaction system for acetylating cellulose to cellulose acetate comprising a skid-mounted acetylator, hydrolysis cell and hoist system is disclosed. The acetylator is pivotably mounted on the skid and is constructed so that
05/2003
05/28/2003EP1141029B1 Process and apparatus for making cellulose ethers
04/2003
04/09/2003CN1408728A Industrial preparing method and device for methyl hydroxy alkyl cellulose
04/03/2003US20030065166 Process and apparatus for the industrial preparation of methylhydroxyalkylcellulose
03/2003
03/19/2003EP1293515A1 Process and apparatus for industrially producing methyl hydroxyalkyl cellulose
03/14/2003CA2402754A1 Process and apparatus for the industrial preparation of methylhydroxyalkylcellulose
02/2003
02/12/2003CN1396184A Method for continuous producing carbamate cellulose
12/2002
12/03/2002US6487788 Continuous process and apparatus for the drying and gel formation of solvent-containing gel-forming polymers
08/2002
08/22/2002US20020112361 Continuous process and apparatus for the drying and gel formation of solvent-containing gel-forming polymers
05/2002
05/07/2002US6381866 Continuous process and apparatus for the drying and gel formation of solvent-containing gel-forming polymers
02/2002
02/26/2002CA2125291C Cellulosic fibres
12/2001
12/12/2001CN1076024C Method and apparatus for controlling acetylization of cellulose
10/2001
10/10/2001EP1141029A1 Process and apparatus for making cellulose ethers
09/2001
09/06/2001US20010020090 Separation, purification, and drying of cellulose ethers within sealed, pressure-tight space consisting of acid-resistant materials
09/05/2001EP1130033A1 Process for acid catalyzed hydrolytic depolymerization of cellulose ethers
08/2001
08/01/2001CN1306028A Continuous method and appts. for drying gel shaped polymer and shaping gel
07/2001
07/19/2001US20010008048 Continuous process and apparatus for the drying and gel formation of solvent-containing gel-forming polymers
07/19/2001DE10001256A1 Continuous drying and gel formation of polymers containing solvents, e.g. cellulose ether, involves flash evaporation at reduced pressure
07/18/2001EP1116728A1 Continuous process and apparatus for drying and gel formation of gelable and solvent containing polymers
07/17/2001US6261218 Process and apparatus for making low molecular weight cellulose ethers
07/14/2001CA2330714A1 Continuous process and apparatus for the drying and gel formation of solvent-containing gel-forming polymers
07/05/2001US20010007028 Process and apparatus for making low molecular weight cellulose ethers
06/2001
06/13/2001DE10009642C1 Acid-catalyzed, hydrolytic depolymerization of cellulose ethers to low-viscosity products useful e.g. for coating drugs, carried out in pressure filter vessel allowing separation, purification and drying in same apparatus
01/2001
01/25/2001DE19935332C1 Screw feeder, especially for cellulose compounds, includes exit section with longitudinal ribs in housing
06/2000
06/08/2000WO2000032637A1 Process and apparatus for making cellulose ethers
07/1999
07/27/1999US5928613 Apparatus for acetylating cellulose
05/1999
05/12/1999EP0915121A1 Improvements relating to treatment vessels, for example for the acetylation of lignocellulosic materials and methods of treatment
02/1999
02/09/1999US5869646 Method and apparatus for acetylating cellulose
10/1998
10/14/1998EP0616650B1 Carboxymethyl Cellulose Fibre
10/08/1998DE19812954A1 Viscose fibre production from cellulose or a spinning solution
03/1998
03/24/1998US5731083 Cellulosic fibres
10/1997
10/08/1997CN1161339A Method and apparatus for controlling reactions
09/1997
09/03/1997CN1158275A Process for dissolving nodular solids in lqiuids and installation for carrying out process
08/1997
08/13/1997EP0789033A2 Method and apparatus for controlling acetylation of cellulose
02/1997
02/26/1997EP0759322A1 Method and installation for dissolving solid materials of a bulbous form in a liquid
12/1996
12/31/1996US5589589 Applying cellulose ether to sieve surfaces, agitation, flushing with air, discharging and recovering
09/1996
09/12/1996DE19508230A1 Plasticised cellulose nitrate prodn. for use in varnish, ink etc.
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