Patents for C08B 15 - Preparation of other cellulose derivatives or modified cellulose (3,279) |
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12/27/1983 | US4423158 Ion adsorbent for metals having a coordination number greater than two |
12/06/1983 | CA1158159A1 Hydroxyalkyl starch drug carrier |
10/13/1983 | WO1983003433A1 Procedure for treating cellulose derivative fibres |
10/04/1983 | CA1154560A1 Method of producing absorbable surgical suture material based on monocarboxycellulose |
09/13/1983 | US4404371 Alkyl chloroformates, tert-amine catalysis |
09/13/1983 | US4404369 Reacting cellulose with urea dissolved in ammonia |
07/26/1983 | USRE31323 Preparation of water-insoluble carboxymethyl cellulose absorbents |
07/26/1983 | US4395546 Decoloring effluents |
07/07/1983 | WO1983002279A1 Procedure for precipitating cellulose derivative |
07/07/1983 | WO1983002278A1 Procedure for producing soluble cellulose derivatives |
07/05/1983 | US4391973 Readily hydratable cellulose and preparation thereof |
07/05/1983 | CA1149380A1 Alloy fibers of rayon and an alkali metal or ammonium salt of a copolymer of polyacrylic acid and methacrylic acid having improved absorbency |
06/28/1983 | US4390692 Amide catalyst |
05/11/1983 | WO1983001622A1 Polysaccharide-based product |
05/10/1983 | US4383089 Process for the production of polyepoxy silicate resin |
05/10/1983 | US4383078 Process for the production of alkali metal polyhydroxy lignin-cellulose polymer |
05/03/1983 | US4382136 Epoxide, lewis acid |
04/19/1983 | US4380592 Process for the production of polyhydroxy lignin-cellulose silicate polymer |
03/22/1983 | US4377674 Process for the production of polyhydroxy lignin-cellulose silicate polymer |
03/22/1983 | US4377669 Photocrosslinkable polyester with side tricyclic imidyl groups |
03/22/1983 | US4377668 Photoresists |
03/08/1983 | US4376173 Lignin, cellulose, polyurethane foam, polyisocyanate |
03/08/1983 | US4376171 Lignin, cellulose, polyurethane foam |
02/22/1983 | CA1141758A1 Microfibrillated cellulose |
02/08/1983 | US4372328 Fibrous material for tobacco smoke filter |
02/01/1983 | CA1140328A1 Aqueous solutions containing crosslinked hydroxyethyl carboxyethyl cellulose |
01/04/1983 | US4367326 Process for the production of polyepoxy silicate resins |
12/28/1982 | US4366310 Controlled release compositions |
12/28/1982 | US4366070 Viscosifier & fluid loss control system |
12/21/1982 | US4364393 Treating an oxidized cellulose thread with a transition metal salt complexing with a polydentate; high tensile strength |
11/16/1982 | US4359548 Polyesterurethane copolymers |
11/02/1982 | US4357468 Sorbents of cellulose basis capable of forming inclusion complexes and a process for the preparation thereof |
11/02/1982 | US4357467 Acid hydrolysis with hydrochloric acid |
08/31/1982 | US4347345 Process for the production of broken-down organic lignin-cellulose silicate polymers |
08/04/1982 | EP0057105A2 Method of producing alkali-soluble cellulose carbamate |
07/21/1982 | EP0056360A1 Cross-linked carboxymethylcellulose carbonate and preparation thereof |
07/20/1982 | US4340731 Polycarboxyalkyl-cellulose having high fluid absorbing and retaining properties, and process for preparing same |
07/20/1982 | US4340585 Salified anionic resin for cholesterol and lipid lowering |
07/13/1982 | US4339366 Process for the production of polyester resins |
07/13/1982 | CA1127792A1 Photocrosslinkable polymers with side tricyclic imidyl groups |
07/07/1982 | EP0055556A2 Conversion of municipal waste to fuel |
07/06/1982 | CA1127151A1 Cross-linking of cellulose sulfate esters with tetravalent metal ions |
06/29/1982 | US4337095 Hydroxymethyl cellulose from paraformaldehyde and cellulose |
06/22/1982 | US4336340 Process for the production of broken-down organic lignin-cellulose polymers |
06/01/1982 | US4332916 Ion exchange polymers on improved porous substrates |
05/18/1982 | US4330440 Activated matrix and method of activation |
05/11/1982 | CA1123415A1 Preparation of water-insoluble carboxymethyl cellulose absorbents |
04/06/1982 | US4323494 Oxidated silicon acid, polyisocyanate, polyurethane |
03/31/1982 | EP0048612A2 Thickener and method for making same |
03/23/1982 | US4321367 Method for the preparation of cross-linked polysaccharide ethers |
03/02/1982 | US4317752 Polyurethane foams; insulation; construction materials |
02/09/1982 | US4314916 Process for the production of broken down lignin-cellulose silicate copolymers |
02/02/1982 | US4313857 Broken-down organic lignin-cellulose silicate polymers |
01/27/1982 | EP0044658A1 Improved method of increasing the accessibility of cellulosic material in lignocellulosic materials |
01/27/1982 | EP0044622A2 Solubilisation and hydrolysis of carbohydrates |
01/26/1982 | US4312981 Modified cellulosic products having enhanced thermal, solvent, and biological properties |
01/06/1982 | EP0043097A1 Hardenable coating and binding agents, and their use |
12/15/1981 | US4306080 Process for the purification of industrial effluents |
12/01/1981 | US4303786 Isonitrile derivatives of macromolecules containing hydroxyl groups |
11/03/1981 | US4298395 Halogenated pyrimidine activator for binding ligands |
10/06/1981 | CA1110009A1 Process for the preparation of solutions of cellulose derivatives which can be coagulated and spun to form regenerated cellulose bodies |
09/29/1981 | US4292214 Process for the production of polyurethane products |
09/01/1981 | US4286964 Polyfunctional epoxides and halohydrins used as bridging groups to bind aromatic amine group-containing alcohols and thiols to hydroxyl bearing substrates |
08/18/1981 | CA1107268A1 Preparation of water-insoluble carboxymethyl cellulose absorbents |
08/11/1981 | US4283509 Photocrosslinkable polymers with side tricyclic imidyl groups |
08/11/1981 | US4283311 Process for the production of broken down cellulose copolymers |
08/11/1981 | CA1106841A1 Activated matrix and method of activation |
07/21/1981 | CA1105209A1 Textile conditioning compositions with low content of cationic materials |
07/15/1981 | EP0032004A2 Controlled release compositions |
06/16/1981 | CA1103158A1 Method for preparing biocompatible materials and articles produced thereby |
04/22/1981 | EP0027377A1 Derivatives of hydroxyl-bearing substrates, process for their preparation and a method of application |
04/21/1981 | US4263274 Applying aldehyde starches |
04/14/1981 | CA1099439A1 Photocross-linkable polymers |
04/08/1981 | EP0026204A1 Process for the production of alkali metal-cellulose-silicates and their reaction products |
03/31/1981 | US4259355 Chewing gum containing flavor composition and flavor composition therefor |
03/24/1981 | US4258136 Process for producing wood adsorbents for mercury ions by graft polymerization of acrolein onto xanthated wood meal followed by conversion to thiosemicarbazone |
03/24/1981 | CA1098245A1 Crosslinkable polymeric compounds |
02/24/1981 | CA1217765B Method of rendering lignin separable from cellulose and hemicellulose in lignocellulosic material and the product so produced |
02/24/1981 | CA1096374A1 Method of rendering lignin separable from cellulose and hemicellulose in lignocellulosic material and the product so produced |
02/11/1981 | EP0023561A1 Polycarboxyalkyl-cellulose having high fluid absorbing and retaining properties, and process for preparing same |
02/10/1981 | US4250306 Process and equipment for preparing swellable cross-linked carboxyalkylcelluloses from natural cellulose or cellulose hydrate and use thereof |
02/03/1981 | US4248595 Process for preparing swellable cross-linked carboxyalkylcelluloses, in the form of fibers, from cellulose hydrate and use thereof |
01/27/1981 | US4247657 Process for the production of alkali metal-cellulose-silicates and their reaction products |
01/07/1981 | EP0020469A1 Process for depolymerising cellulose fibers and depolymerised cellulosic material with a low crystallinity degree obtainable by this process. |
01/06/1981 | US4243776 Preparation of non-thrombogenic polymeric material article with platelet anti-aggregative agent |
12/30/1980 | US4242506 Cross-linking of cellulose sulfate esters with tetravalent metal ions |
12/23/1980 | US4241194 Amino resin or phenolic resin products are useful for thermal or sound insulating building materials |
12/23/1980 | CA1092287A1 Method for the preparation of polymers which contain free or salified aminic groups and quaternary ammonium groups and products obtained thereby |
12/23/1980 | CA1092083A1 Ionically modified cellulose materials |
12/02/1980 | US4237016 Textile conditioning compositions with low content of cationic materials |
11/26/1980 | EP0019403A2 Hydroxyalkyl-starch drug carrier |
11/13/1980 | WO1980002374A1 Hydroxyalkyl starch drug carrier |
10/16/1980 | WO1980002142A1 Process for the production of alkali metal-cellulose-silicates and their reaction products |
10/07/1980 | US4226982 Process to break down cellulose polymers and produce cellular solid or solid reaction products |
09/23/1980 | US4224439 Carbonylated polysacchride; affinity chromatography matrix; immobilization of biologically active compounds; radioimmunoassay |
09/09/1980 | CA1085388A1 Cationically modified cellulose-containing materials and their use for the purification of industrial effluent |
09/02/1980 | US4220757 Process for the production of alkali metal-cellulose-silicates and their reaction products |
08/19/1980 | CA1084048A1 Process for the preparation of high d.s. polysaccharides |
07/09/1980 | EP0012804A1 Salts of a non toxic, activated anion exchange resin capable of establishing a stable binding with bile acids and 2-(4'-(p-chlorobenzoyl)-phenoxy)-2-(methyl)-propionic acid and pharmaceutical compositions comprising these salts |
05/01/1980 | WO1980000843A1 Depolymerised cellulosic material with a low cristalline ratio obtained from cellulose fibres and method of preparation |