Patents for C08B 7 - Preparation of cellulose esters of both organic and inorganic acids (67) |
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06/25/2014 | CN103881117A 一种表面功能化纤维素纳米球的制备方法 A surface functionalized nanoparticles in the preparation of cellulose |
05/01/2014 | WO2014066463A1 Polysaccharide ester microspheres and methods and articles relating thereto |
03/12/2014 | EP2705111A2 Lignin production from lignocellulosic biomass |
01/08/2014 | CN103502383A Lignin production from lignocellulosic biomass |
11/06/2013 | CN103382225A Surface esterification modification method for cellulose nanocrystalline |
08/01/2013 | US20130196063 Substituted Cellulose Acetates and Uses Thereof |
06/04/2013 | US8455001 Cellulose derivative and method for production thereof |
04/03/2013 | CN103011564A Glass sheet forming apparatus |
03/21/2013 | WO2012151524A3 Lignin production from lignocellulosic biomass |
02/19/2013 | US8378091 Cellulose derivative |
11/13/2012 | US8309708 Crystalline sulphated cellulose II and its production from sulphuric acid hydrolysis of cellulose |
11/08/2012 | WO2012151524A2 Lignin production from lignocellulosic biomass |
09/25/2012 | US8273697 Pipe unblocker with visual temperature and rinsing indicator |
06/13/2012 | EP2294140B1 Fire retardant resin composition |
01/25/2012 | CN101443362B Use of special screens in the preparation of cellulose powder |
09/07/2011 | CN101137675B Process for the manufacture of cellulose sulfate with improved characteristics |
05/17/2011 | US7943761 Cellulose based optical film material and method for forming the same |
03/16/2011 | EP2294140A1 Fire retardant resin composition |
03/02/2011 | EP1765737B1 Glass sheet forming apparatus |
02/01/2011 | CA2446375C Polymers and their synthesis |
01/04/2011 | US7863439 Heat resistant cellulose ester with enhanced capacity for both releasability and spinnability in reduced solvent concentrations in casting process |
06/22/2010 | US7741424 Phosphoric ester of cellulose derivative and metal adsorbent comprising the same |
05/11/2010 | US7714124 Methods for modifying cellulosic polymers in ionic liquids |
05/27/2009 | CN101443362A Use of special screens in the preparation of cellulose powder |
02/18/2009 | EP2024397A1 Use of special screens in the preparation of cellulose powder |
01/07/2009 | EP1863851B1 Process for the manufacture of cellulose sulfate with improved characteristics |
03/05/2008 | CN101137675A Process for the manufacture of cellulose sulfate with improved characteristics |
12/12/2007 | EP1863851A1 Process for the manufacture of cellulose sulfate with improved characteristics |
11/29/2007 | WO2007136472A1 Use of special screens in the preparation of cellulose powder |
10/25/2007 | US20070249515 Method for Producing Quaternary Hydroxyalkylammonium Granules |
09/27/2007 | US20070225190 Methods for modifying cellulosic polymers in ionic liquids |
06/20/2007 | CN1984849A Glass sheet forming apparatus |
04/26/2007 | US20070093654 carbamidated cellulose II phosphate produced by by reacting a phosphorus oxide, a phosphoric acid halide, or a phosphoric acid with a dried cellulose II in the presence of urea; efficiently adsorbs metal ions in a solution; metal-adsorbing system |
03/28/2007 | EP1765737A2 Glass sheet forming apparatus |
03/14/2007 | EP1414867B1 Polymers and their synthesis |
09/14/2006 | WO2006095021A1 Process for the manufacture of cellulose sulfate with improved characteristics |
09/14/2006 | CA2602079A1 Process for the manufacture of cellulose sulfate with improved characteristics |
09/08/2006 | WO2006058625A3 Anionic cellulose nitrate derivatives and aqueous dispersions thereof |
09/07/2006 | US20060199784 Compound selected from sulfated cellulose and salts thereof and dermatitis therapeutic agent |
07/04/2006 | US7071326 Anionic cellulose nitrate derivatives and aqueous dispersions thereof |
06/08/2006 | WO2006058625A2 Anionic cellulose nitrate derivatives and aqueous dispersions thereof |
05/04/2006 | WO2005121182A3 Glass sheet forming apparatus |
01/12/2006 | DE102004029713A1 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 |
01/05/2006 | US20060000028 Method for modifying fibers |
12/22/2005 | WO2005121182A2 Glass sheet forming apparatus |
12/08/2005 | US20050268658 Glass sheet forming apparatus |
10/05/2004 | US6800754 By esterification of cellulosic material comprising suspending cellulose in acetic acid to swell, the placing in sulfuric acid, then reacting with acetic anhydride |
11/11/2003 | US6646119 Fine fibers of given physical properties; improved heat resistance and stability |
03/19/2003 | EP1165618B1 Method for producing cellulose sulfoacetate derivatives and products and mixtures thereof |
07/09/2002 | US6417345 Method for producing acetylated pyroxylin |
07/09/2002 | US6417344 Acetylation using catalyst; heat resistance, stability |
01/02/2002 | EP1165618A1 Method for producing cellulose sulfoacetate derivatives and products and mixtures thereof |
08/03/2000 | WO2000044791A1 Method for producing cellulose sulfoacetate derivatives and products and mixtures thereof |
05/11/2000 | DE19948609A1 Manufacture of acetylated nitrocellulose, involves dehydrating moist nitrocellulose using a solvent that does not dissolve nitrocellulose followed by reacting with acetylating agent |
05/11/2000 | DE19932196A1 Cellulosenitratacetat und Verfahren für dessen Herstellung Cellulosenitratacetat and method for its preparation |
12/10/1997 | EP0750638A4 Chemical modification of shaped hydrogels in non-aqueous medium |
01/02/1997 | EP0750638A1 Chemical modification of shaped hydrogels in non-aqueous medium |
06/25/1996 | US5530111 Chemical modification of shaped hydrogels in non-aqueous medium |
04/18/1996 | DE4435082C1 Controlled prodn. of cellulose acetate-phosphate or -sulphate mixed ester(s) |
03/07/1996 | WO1996006864A1 Chemical modification of shaped hydrogels in non-aqueous medium |
03/07/1996 | CA2185140A1 Chemical modification of shaped hydrogels in non-aqueous medium |
03/03/1992 | US5093486 Modified chitin for biocompatible dialysis membranes ii and process for preparation of modified cellulose and modified chitin for use therewith |
01/01/1991 | US4981959 Modified cellulose for biocompatible dialysis membranes II and process for preparation thereof |
08/30/1989 | EP0330106A1 Modified cellulose for biocompatible dialysis membranes II, and method for its preparation |
01/25/1977 | US4005251 Sulfation with alkali acetyl sulfate, esterification |
06/08/1976 | US3962212 Phosphorylated cellulose ester membrane for use in separation or concentration of substances |
04/20/1976 | US3951674 Concrete additive |