Patents for C08H 7 - Lignin; Modified lignin; High-molecular-weight products derived therefrom (1,053) |
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02/18/1998 | EP0823948A1 Method of producing a pulp of cellulosic material, the pulp itself and the use thereof |
07/09/1997 | CN1153797A Cross-linked biobased materials, fabricating method thereof and structures fabricated therewith |
04/09/1997 | CN1146999A Process for synthesis of lignin quaternary cation flocculant |
03/27/1997 | WO1997011109A1 Cross-linked biobased materials and uses thereof |
03/19/1997 | CA2184761A1 Methods of fabricating cross-linked biobased materials and structures fabricated therewith |
03/04/1997 | US5608040 Process for the production of lignin-containing polymers |
02/05/1997 | CN1142255A Multicomponent system for modifying decomposing or bleaching lignin, lignin-containing materials or similar substances and method of using this system |
12/04/1996 | EP0745154A1 Multicomponent system for modifying, decomposing or bleaching lignin, lignin-containing materials or similar substances and method of using this system |
11/07/1996 | WO1996035013A1 Method of producing a pulp of cellulosic material, the pulp itself and the use thereof |
11/07/1996 | DE19516151A1 Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung A method for producing a pulp from cellulosic material, the pulp itself and the use thereof |
11/07/1996 | CA2217987A1 Process for producing a pulp from cellulose-containing material, the pulp itself and its use |
08/22/1996 | WO1996018770A3 Multicomponent system for modifying, decomposing or bleaching lignin, lignin-containing materials or similar substances and method of using this system |
06/20/1996 | WO1996018770A2 Multicomponent system for modifying, decomposing or bleaching lignin, lignin-containing materials or similar substances and method of using this system |
06/19/1996 | EP0717143A1 Multicomponents system for modifying decomposing or bleaching of lignin or materials containing it or similar components and the way to use it |
06/17/1996 | CA2164394A1 Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances and processes for its use |
01/16/1996 | US5484595 Process for preparation of dibenzocyclooctadiene type lignan |
01/10/1996 | CN1114837A Process for producing lignin-containing polymers |
09/06/1995 | EP0669953A1 Process for producing lignin-containing polymers |
03/30/1995 | WO1995008588A1 Process for producing lignin-containing polymers |
03/30/1995 | CA2150012A1 Process for producing lignin-containing polymers |
04/05/1994 | US5300593 Lignin modified binding agents |
11/09/1993 | US5260405 Lignin modified binding agents |
10/13/1993 | CN1077179A Alkaline straw pulp paper black liquid and middle section treatment of sewage technology thereof |
06/29/1993 | US5223258 Antiviral disinfecting composition and method of inactivating the aids virus in vitro |
05/12/1993 | EP0540836A2 Binder mixture modified with lignin and process for producing the same |
06/03/1992 | EP0488459A2 Process for producing regenerated humic acids from coal |
05/30/1992 | CA2056757A1 Process for producing regenerated humic acids from coal |
02/25/1992 | CA1296144C Method for methylolation of lignin materials |
05/07/1991 | US5013825 Sulfation of lignin |
04/04/1991 | CA2012101A1 Antiviral medicinal composition |
10/30/1990 | US4966650 Solvent extraction |
10/03/1990 | EP0389631A1 Process for preparing dibenzocyclooctadiene type lignan |
02/22/1990 | WO1990001487A1 Process for preparing dibenzocyclooctadiene type lignan |
02/06/1990 | CA1265514A1 Amine salts of lignosulfonates |
08/15/1989 | US4857638 Lignin having nitrogen and sulfur and process therefor employing thiourea |
06/27/1989 | CA1256428A1 Ammonium lignosulfonates |
06/27/1989 | CA1256427A1 Low electrolyte sodium lignosulfonates |
02/07/1989 | CA1249812A1 Production of pure sugars and ligno-sulphonates from sulphite spent liquor |
09/21/1988 | CN87101820A Preparation method of sulfomethylated derivative of lignin calcium sulfonate, a new dolomite depressant for phosphorus mineral floatation |
08/16/1988 | US4764597 One step-oxidation, methylolation, lowering the ph to precipitate |
07/26/1988 | CA1239528A1 Method and apparatus involving supercritical fluid extraction |
05/04/1988 | CN86107289A The manufacturing method of dissolvable lignin from alkali lignin |
05/04/1988 | CN85105225B Technology for making diluent of oil drilling slurry with furfural productin solid waste as raw material |
03/22/1988 | US4732572 Amine salts of sulfomethylated lignin |
02/17/1987 | CA1218056A1 Color reduction process for non-sulfonated lignin |
02/10/1987 | US4642336 Ionizing, methylolation; sulfonation with ammonium sulfite |
12/23/1986 | US4631129 Two-step chromatography |
07/30/1986 | CN85105225A Technology for making diluent of oil drilling slurry with furfural production solid waste as raw material |
05/20/1986 | US4590262 Low electrolyte sodium lignosulfonates |
06/04/1985 | US4521336 Process for preparing lignosulfonates |
01/15/1985 | US4493797 Apparatus and method involving supercritical fluid extraction |
12/04/1984 | US4486346 Color reduction process for non-sulfonated lignin |
06/08/1976 | US3962208 Novel flame retardants and their production by chlorobromination of wood pulp waste liquors |