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JP2002537374A |
A process for producing nitrosonium ions is described, in which a nitroxyl compound such as TEMPO is oxidized using an oxidizing agent in the presence of a complex of a transition metal such as Mn, Fe, Cu, and a complexing agent such as ...
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JP2002256001A |
To obtain a cellulose ether having good thixotropic property.A method for producing the cellulose ether comprises preparing alkali cellulose by using pulp containing 2-20 wt.% of a lignin component as a raw material and then an etherifyi...
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JP3299110B2 |
To obtain a new formed body, easily recyclable and having a composite structure of lignin which is a constitutional component of the composite structure of lignocellulose, forest resources. This formed body is obtained by molding a formi...
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JP2002161101A |
To provide a process for obtaining activated polysaccharide wherein the quantity of ammonia left therein is less than 0.2% by weight.When a polysaccharide, as a starting material, is contacted with liquid ammonia in the presence of a suf...
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JP2002512271A |
(57) [Summary] The present invention relates to a method of activating cellulose, a method of derivatizing activated cellulose, and a resulting cellulose derivative. According to the present invention, the activation step is carried out ...
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JP2002510354A |
PCT No. PCT/EP98/03907 Sec. 371 Date Feb. 14, 2000 Sec. 102(e) Date Feb. 14, 2000 PCT Filed Jun. 26, 1998 PCT Pub. No. WO99/02568 PCT Pub. Date Jan. 21, 1999Samples of commercial cellulose having high crystallinity (>80%) and a degree of...
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JP3262917B2 |
PURPOSE: To improve the capability of fine celulose particles as a stabilizer for a suspension or emulsion and obtain the particles which give a smooth texture by grinding a cellulose material using both an ultra-high-pressure homogenize...
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JP3251021B2 |
The invention concerns reactive cellulose, i.e. cellulose having in particular a very low degree of crystallinity obtainable with a high degree of purity. Said novel reactive cellulose is particularly used as raw material for making cell...
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JP2002003501A |
To provide an alcelizing method in an alkali cellulose-forming step and to provide an apparatus for alkali cellulose-forming reaction whereby a cellulose is alkalinized, in particular, the transparency of cellulose ether aqueous solution...
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JP2001526733A |
Process for producing regular porous pearl cellulose with a particle size in the range from 2 to 1,000 mum, comprising the steps:a) a cellulose having a degree of polymerisation in the range from 150 to 2,000 is dissolved in a solvent to...
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JP2001342353A |
To provide a means to convert a wood resource having fixed material characteristics into a novel moldable resource, such as a plastic.A lignocellulose composition comprising a lignophenol derivative and a cellulose component is obtained ...
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JP2001323095A |
To provide particles that have proper stimulation to skin and can readily support a variety of functional substances.The objective porous particles have particle sizes of 0.1-1.0 mm, a plurality of surface pores on a part or the whole pa...
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JP2001270901A |
To provide a method for manufacturing a cellulose ester suitable for preparing a solution (dope) in an organic solvent other than methylene chloride on or around at normal temperature and pressure. A cellulose ester is manufactured from ...
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JP3214706B2 |
PCT No. PCT/KR97/00104 Sec. 371 Date Feb. 10, 1999 Sec. 102(e) Date Feb. 10, 1999 PCT Filed Jun. 5, 1997 PCT Pub. No. WO97/47790 PCT Pub. Date Dec. 18, 1997A simple method of preparing a homogeneous cellulose solution is disclosed, which...
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JP2001240601A |
To provide an especially economical new method for producing a particulate water-soluble cellulosic derivative.This method for producing the particulate water-soluble cellulosic derivative comprises bringing a feed composition containing...
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JP2001190986A |
To provide a metal net constituting a basket for housing an object to be drained arranged to a continuous centrifugal drainage machine, more precisely, the basket metal net for the continous centrifugal drainage machine suited for perfor...
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JP2001505623A |
The invention concerns a coagulating agent for liquid crystal solutions with a base of cellulose substances, characterised in that it contains at least one water soluble additive selected from the group consisting of ammonia, amines of s...
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JP3138757B2 |
PURPOSE: To obtain a fiber having durable shrink resistance and free from generation of formalin by immersing a cellulose fiber in a treating liquid containing a specific polycarboxylic acid and a silicon compound and heat- treating the ...
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JP2001502012A |
The invention relates to a composition intended to be admixed to a moldable solution of cellulose in an aqueous tertiary amine oxide, which composition consists ofsolid particles,a mixture of a tertiary amine oxide and water, in which th...
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JP3126386B2 |
Digester systems for producing paper pulp form comminuted cellulosic fibrous material take into account the level of dissolved organic materials (DOM), such as lignin, hemi-cellulose maintaining the DOM level at about 100 g/l throughout ...
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JP2001500564A |
A device is disclosed to draw off or store viscous mass which is discharged from a process for example as a result of exothermal events. The device contains at least one unit which has one inlet for the viscous mass and one outlet and is...
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JP2001009316A |
To reduce the undissolved fiber content of a cellulose ether water solution, enhance productivity and obtain cellulose ether stably by grinding pulp by using a vertical roller mill so as to produce powder pulp.A raw material pulp is powd...
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JP2000516278A |
A process for producing cellulosic shaped objects includes extruding and coagulating a solution of chemical wood pulp in a tertiary amine oxide, and possibly a liquid that does not dissolve wood pulp and is miscible with the tertiary ami...
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JP3046441B2 |
PURPOSE: To produce cellulose acetate having excellent filtering characteristics, transparency and spinnability from a low-grade pulp having an extremely low content of α-cellulose by specifically treating wood pulp and then reacting. C...
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JP3042892B2 |
A microfibrillated cellulose contains at least 80% of prim. walls, and is charged with carboxylic acids.
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JP2000505135A |
A method of producing cellulose carbamate is described in which: (a) cellulose is brought into contact with liquid ammonia at an initial pressure exceeding atmospheric pressure and a temperature of at least about 25 DEG C, in the presenc...
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JP2000117116A |
To provide a basic photocatalyst fixation means for fixing a photocatalyst on a cellulose substrate and having durability to photocatalytic titanium oxide, water resistance, and easily formable properties.This photocatalyst-fixing cellul...
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JP2000504767A |
PCT No. PCT/EP97/00652 Sec. 371 Date Aug. 6, 1998 Sec. 102(e) Date Aug. 6, 1998 PCT Filed Feb. 12, 1997 PCT Pub. No. WO97/30090 PCT Pub. Date Aug. 21, 1997A process for preparing a material having a high water and salt solutions absorben...
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JP2000504071A |
PCT No. PCT/EP97/00460 Sec. 371 Date Aug. 6, 1998 Sec. 102(e) Date Aug. 6, 1998 PCT Filed Jan. 31, 1997 PCT Pub. No. WO97/28298 PCT Pub. Date Aug. 7, 1997A spinnable, isotropic solution containing cellulose, phosphoric acid and/or anhydr...
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JP2000072888A |
To obtain a new readily reusable molding product by providing a composition structure using a lignin which is a constituent component of a lignocellulose composite structure as forest resources. This molding product is formed by a fibrou...
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JP2999293B2 |
PURPOSE: To provide an industrially practicable process for producing cellulose acetate without lowering the acetylation reactivity of pulp from a hard high- density low-grade pulp sheet. CONSTITUTION: A pulp sheet of a density of 0.5g/c...
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JP2991466B2 |
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JPH11513076A |
A process is disclosed for preparing a homogeneous suspension of cellulose in an aqueous solution of a tertiary amine oxide. Cellulose is mixed with the aqueous solution of tertiary amine oxide in a mixer which has a container for accomm...
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JP2971947B2 |
A single vessel digester system for digesting cellulosic fibrous material comprises a substantially upright vessel (221) having a top (220) and bottom (222) with a slurry of comminuted cellulosic material to be digested introduced adjace...
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JPH11511764A |
The invention relates to a process for the preparation of a solution of N-methylmorpholin-N-oxide in water, which solution is used in the amine oxide process. The preparation process is characterised by the following steps: (a) an aqueou...
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JPH11217401A |
To provide a manufacturing method of a crystalline cellulose in a simple and low cost process which reduces investment cost, mineral acid using cost, and water using cost while recovering effective ingredients such as glucose, etc. This ...
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JPH11158201A |
To provide a method of storage and transportation of a bulky cellulosic raw material without becoming rotten even in a hot and humid environment at a high density and a method of preparation of pulp from the cellulosic material stored an...
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JP2895087B2 |
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JP2895811B2 |
For producing solutions of cellulose in water-containing tertiary amine oxides from a suspension of cellulose in an aqueous solution of the tertiary amine oxide by supplying heat under reduced pressure, the suspension having a viscosity ...
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JPH11504071A |
Disclosed is a method for producing cellulose derivatives wherein cellulose is impregnated with an alkali solution, the impregnated cellulose is selectably pressed out, and the cellulose undergoes a substitution or addition reaction, whe...
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JPH11503197A |
The invention is concerned with a cellulose sponge which may be produced by mixing a solution of cellulose in an aqueous tertiary amine-oxide with a pore forming agent and a sponging agent and subsequently exposing it to conditions which...
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JPH11502556A |
PCT No. PCT/EP96/01186 Sec. 371 Date Oct. 29, 1997 Sec. 102(e) Date Oct. 29, 1997 PCT Filed Mar. 20, 1996 PCT Pub. No. WO96/30410 PCT Pub. Date Oct. 3, 1996Process for preparing a solution of cellulose in water-containing tertiary amine ...
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JP2848861B2 |
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JPH10512009A |
PCT No. PCT/GB96/00029 Sec. 371 Date Dec. 23, 1997 Sec. 102(e) Date Dec. 23, 1997 PCT Filed Jan. 9, 1996 PCT Pub. No. WO96/21678 PCT Pub. Date Jul. 18, 1996A method is described for forming a solution of cellulose in a tertiary amine oxi...
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JPH10510583A |
The invention relates to a thin-film treatment device with a cylindrical treatment vessel and a rotor fitted centrally therein and having agitators which are movable and are inclined at an angle alpha to the rotor axis, in which the roto...
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JP2809345B2 |
Cellulosic sheet material is processed in preparation for esterification, for example acetylation to produce cellulose acetate, by treating the sheet material (1) with water (4, 5) and then feeding the wetted material into a machine (6) ...
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JPH10509190A |
PCT No. PCT/GB95/02466 Sec. 371 Date Mar. 21, 1997 Sec. 102(e) Date Mar. 21, 1997 PCT Filed Oct. 19, 1995 PCT Pub. No. WO96/12761 PCT Pub. Date May 2, 1996The use together of (1) an aromatic compound containing a benzene ring bearing at ...
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JPH10509222A |
PCT No. PCT/AT96/00167 Sec. 371 Date May 2, 1997 Sec. 102(e) Date May 2, 1997 PCT Filed Sep. 19, 1996 PCT Pub. No. WO97/11213 PCT Pub. Date Mar. 27, 1997A process for the production of a cellulose moulded body, particularly cellulose fib...
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JPH10507489A |
The invention relates to a process for producing an aqueous amine oxide solution used in the amine oxide process for producing a mouldable cellulose solution, in which aqueous amine oxide-containing solutions occurring in the amine oxide...
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JPH10507490A |
The invention relates to a process for producing a solution of N-methyl morpholine-N-oxide in water, in which (a) an aqueous solution is used which contains N-methyl morpholine and morpholine and has a pH between 6.0 and 9.0, whereafter ...
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