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