Patents for C08B 5 - Preparation of cellulose esters of inorganic acids (387) |
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02/03/1994 | WO1994002226A1 Phosphorylation with monomeric metaphosphates |
11/25/1993 | DE4315951A1 Bleaching nitrocellulose, esp. after prodn. - by treating an aq. suspension of nitrocellulose with a gaseous oxidising agent esp. ozone or chlorine di:oxide |
11/03/1993 | EP0567856A1 Method of preparing pourable, rapidly soluble lacquer-binder granules |
10/29/1993 | CA2094770A1 Free flowing, quick-dissolving lacquer binder granules |
03/24/1993 | EP0532995A2 Process for preparing polysaccharide carbonates |
03/18/1993 | CA2078164A1 Process for the production of polysaccharide carbonates |
11/19/1992 | EP0513771A2 Free flowing spheroidal nitrocellulose particles and process for the same |
11/18/1992 | CA2068831A1 High productivity spheroid nitrocellulose |
11/11/1992 | EP0512319A2 Process for preparing carbonic acid derivatives of polysaccharides |
09/01/1992 | US5144020 Improved solubility, slower burn rate |
07/02/1992 | DE4041948A1 Stabilisation of technical cellulose ester(s) esp. cellulose nitrate(s) - by breaking down in aq. pulp before or after nitration cycles, using longitudinal waves |
03/17/1992 | US5096462 Ignition promoter, process for preparing same and fuel containing said ignition promoter |
01/02/1992 | DE4021049A1 Water-sol. cellulose sulphate with high soln. viscosity - by heterogeneous sulphation of high mol. wt. cellulose with mixt. of propanol and sulphuric acid at specific temp. |
12/10/1991 | US5071892 Desensitized nitrocellulose mixtures |
11/26/1991 | US5068321 Reaction of polysaccharide with carbonic acid esters in the presence of a base |
06/26/1991 | CN1052484A Process for preparing nitrocellulose from cotton stalk |
03/13/1991 | CN1011970B Method for using chinese alpine rush as raw material to make nitrocellulose |
12/20/1990 | DE4019116A1 Water-soluble cellulose sulphate - by alkali-activation and acid-regeneration of cellulose, dehydration with propanol, sulphating with sulphuric acid-propanol, etc. |
08/16/1990 | DE3903661A1 Method of reprocessing waste acid containing nitric and sulphuric acid |
05/23/1990 | EP0369247A1 Method for the preparation of phlegmatized nitrocellulose mixtures |
05/23/1990 | EP0369246A1 Method for preparing phlegmatized nitrocellulose mixtures |
05/09/1990 | EP0367002A1 Carbonic-acid esters of polysaccharides and process for their preparation |
04/03/1990 | USH764 Nitration of woodpulp |
04/18/1989 | CA1252716A1 Lipoprotein adsorbent for use in extracorporeal circulation treatment and process for preparing thereof |
03/21/1989 | US4814439 Pollution control, sulfhydryl compound |
03/21/1989 | US4814437 Method for preparation of sulfated polysaccharides by treating the polysaccharide with a reducing agent before sulfation |
12/13/1988 | CA1246555A1 Polysaccharides, methods for preparing such polysaccharides and fluids utilizing such polysaccharides |
01/14/1988 | WO1988000211A1 A method for preparation of sulfated polysaccharides by treating the polysaccharide with a reducing agent before sulfation |
12/22/1987 | US4714555 Agent for separation |
09/15/1987 | CA1226997A1 Amine salts and products containing them |
03/04/1987 | CN85106196A Utilize chinese alpine rush for making nitrocellulose |
05/20/1986 | US4590019 Processes for the production of free-flowing nitrocellulose |
04/09/1986 | EP0176940A2 Polysaccharides, methods for preparing such polysaccharides and fluids utilizing such polysaccharides |
04/01/1986 | US4579942 Water-soluble cellulose ethers having goog shear-thermal stabilitycharacteristics |
03/04/1986 | US4574151 Alkaloids and polysaccharides |
10/08/1985 | US4546175 Process for the manufacture of reels of nitrocellulose thread |
08/07/1985 | EP0150849A2 Agent for separation |
06/04/1985 | US4521251 Low-melting glass paste and cellulose nitrate therefor |
04/17/1985 | EP0137357A2 Process for the preparation of free-flowing nitrocellulose |
10/30/1984 | US4480091 Process for preparing cellulose sulfate esters |
10/23/1984 | CA1176631A1 Cellulose sulfate salt having anti-coagulating action and process for preparing same |
05/09/1984 | EP0107867A1 Coating composition of partially oxidized nitrocellulose and magnetic pigment |
03/28/1984 | EP0103970A2 Amine salts and products containing them |
12/06/1983 | US4419316 Process of making films, fibers or other shaped articles consisting of, or containing, polyhydroxy polymers |
08/30/1983 | US4401809 Multi-vessel autoclaving with agitation |
07/27/1983 | EP0084153A1 Process for preparing free-flowing nitrocellulose with increased powder density |
06/21/1983 | US4389523 Cellulose sulfate salt having anti-coagulating action and process for preparing same |
06/14/1983 | US4388458 Aqueous dispersion of fibers containing trace sulfuric acid |
12/21/1982 | US4365059 Nitration of cellulose |
08/10/1982 | US4343646 Method for producing fertilizer from waste paper |
07/06/1982 | CA1127151A1 Cross-linking of cellulose sulfate esters with tetravalent metal ions |
06/09/1982 | EP0053473A1 Cellulose sulfate salt having anti-coagulating action and process for preparing same |
06/08/1982 | US4334060 Reactor for the gas phase nitration of cellulose |
04/06/1982 | US4323669 Process for purification of nitrocellulose |
07/14/1981 | CA1105010A1 Continuous process for the nitration of cellulose and apparatus therefor |
03/17/1981 | US4256111 Cellulose ethers and esters unidirectionally aligned; crosslinking; grafting; very absorbent; disposable products |
12/30/1980 | US4242506 Cross-linking of cellulose sulfate esters with tetravalent metal ions |
12/23/1980 | USRE30459 Nitrite esters of polyhydroxy polymers |
07/29/1980 | CA1082694A1 Process for producing regenerated cellulosic articles |
07/29/1980 | CA1082692A1 Hollow cellulosic fibers |
07/29/1980 | CA1082691A1 Shaped cellulosic fibers |
06/03/1980 | US4206302 Injection pump, loop of tubing, circulation |
01/22/1980 | US4184891 Process for washing a solid substance impregnated with a liquid substance |
12/11/1979 | US4178439 Crosslinked carbohydrate |
12/04/1979 | US4177345 Process for preparing a sulfate ester of a polyhydroxy polymer |
08/28/1979 | CA1061336A1 Process for producing regenerated cellulosic product |
08/21/1979 | CA1060606A1 Cellulose and cellulose products modified by silicic acid |
04/03/1979 | CA1051880A1 Esters of polyhydroxy polymers and processes for their preparation |
03/06/1979 | US4143226 Forming nitrite-sulfate mixed ester first |
02/27/1979 | US4141746 Cellulose sulfate esters |
02/06/1979 | US4138535 Sulfate or nitrate esters, polysaccharide or polyvinyl alcohol |
02/06/1979 | CA1047750A1 Filaments of chemically modified cellulose fibers, method of making such filaments and webs and products formed therefrom |
12/26/1978 | CA1045126A2 Water soluble polymer esters and process for producing same |
04/25/1978 | US4086418 Process for producing a regenerated hollow cellulosic fiber |
02/28/1978 | US4076933 Nitrosating cellulose, regeneration with an alcohol |
02/28/1978 | US4076932 Nitrosating cellulose, regenerating with an alkanol and a base |
02/28/1978 | US4076918 Cellulose thiocyanate and process for preparing the same |
01/17/1978 | US4069122 Molecular-weight reduction of nitrocellulose by electron beam radiation |
12/20/1977 | US4064342 Activation with amine, reaction of lewis base-sulfur trioxide complexn |
08/23/1977 | US4044090 Process for producing regenerated cellulosic product |
07/12/1977 | US4035569 Thickeners, films, fibers |
07/05/1977 | US4033913 Cellulose and cellulose products modified by silicic acid |
12/14/1976 | US3997647 Method of making filaments and webs of chemically modified cellulose fibers |
08/24/1976 | US3976691 Dialkylaminosulfur trifluorides as fluorinating agents |
06/08/1976 | US3962212 Phosphorylated cellulose ester membrane for use in separation or concentration of substances |
06/01/1976 | US3960666 Preparation of an enzyme-cellulose complex |
02/24/1976 | US3939836 Water dispersible nonwoven fabric |