Asahi Kasei Chemicals Corporation

Asahi Kasei Kabushiki Kaisha

Naoaki Yamasaki

Haruko Obata

Ichiro Ibuki

Kazuhiro Obae

Kouichirou Enatsu

Ryo Suzuki

Takaaki Miyoshi

Hirofumi Ono

Yoshihito Yaginuma

Koichi Ueno

Kazufumi Kawahara

Yoko Fujimoto

Kazuya Nagata

Yoshinaga Tamura

Koichiro Enatsu

Kazuaki Sanada

Takashi Sanda

Koji Isaka

Hirotaka Asai

Hirofumi Uchimura

Natsuki Hosoe

An embodiment of the present disclosure provides fine cellulose fibers that satisfy, in measurement using an automatic fiber shape analyzer, all of (i) the length weighted average fiber length of fibers having a fiber length of at least 100 μm is 110-500 μm, (ii) the average fiber diameter is at most 42.5 μm, (iii) the fine fiber area ratio is at most 90%, (iv) the number frequency of fibers having a fiber length of 20-56 μm is at most 97% among fibers having a fiber length of less than 100 μm, (v) the number frequency of fibers having a fiber length of at least 411 μm is at most 54% among fibers having a fiber length of at least 100 μm, and (vi) the average fiber diameter is 20-150 nm in terms of specific surface area.

Fine cellulose fibers and production method therefor, nonwoven fabric, and fiber-reinforced resin and production method therefor

The present disclosure relates to a resin composition that exhibits satisfactory flow properties and mechanical properties, to a cellulose formulation that is used to produce the resin composition, and to resin pellets and a molded resin formed by the resin composition.

Cellulose-containing resin composition and cellulosic ingredient

[Problem] The present invention addresses the problem of providing a cellulose composite whereby the cellulose composite itself disperses stably even when ions are blended in a high concentration in a beverage, and also has excellent suspension stability. [Solution] A cellulose composite comprising cellulose, an anionic polysaccharide not having a chemically crosslinked structure, and water-absorbent particles comprising a compound having a chemically crosslinked structure wherein the cellulose composite has a viscosity of 10 mPa&#xb7;s or higher when 1 mass % of the cellulose composite is dispersed in an aqueous solution in which 0.45 g of sodium bicarbonate is dissolved in 100 mL of pure water.

Cellulose composite

A method for producing a cellulose composite containing cellulose and a polysaccharide, wherein a median size of colloidal cellulose composites contained in the cellulose composite as measured by a dynamic light scattering method is 0.85 &#x3bc;m or more, the method including treating a mixture containing cellulose, a polysaccharide and an aqueous medium together in a wet process, wherein a solid content is controlled to be 35 mass % or more, and temperature is set at 80&#xb0; C. or less.

Highly functional cellulose composite

The present invention relates to a cellulose composite that makes separation and aggregation less likely to occur, and, more specifically, relates to a cellulose composite comprising cellulose and one or more types of water-soluble carboxymethyl cellulose wherein tan &#x3b4; of an aqueous dispersion obtained by dispersing 1 mass % of the cellulose composite in ion-exchanged water is 0.6 or lower.

A cellulose composite which contains a cellulose and a polysaccharide and which is characterized in that the median diameter of colloidal cellulose composites contained in the cellulose composite is 0.85 &#x3bc;m or more as measured by a dynamic light scattering method.

Cellulose composites of cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass % aqueous dispersion thereof, which has a storage modulus (G') of 0.06 Pa or more when the pH thereof is 4.

Disclosed is a cellulose composite which comprises cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass % aqueous dispersion thereof which has a storage modulus (G') of 0.06 Pa or more when the pH thereof is 4.

A porous cellulose aggregate which has a secondary aggregation structure formed by the aggregation of primary cellulose particles, has a pore volume within a particle of 0.265 cm/g to 2.625 cm/g, contains I type crystals, has an average particle diameter of more than 30 &#x3bc;m and 250 &#x3bc;m or less, has a specific surface area of 1.3 to 20 cm/g, has an angle of repose of 25&#xb0; or more and less than 44&#xb0;, and has the property that it collapses in water.

Porous cellulose aggregate and formed product composition comprising the same

Disclosed is a cellooligosaccharide composition comprising, as the main ingredient, at least one cellooligosaccharide selected from the group consisting of cellobiose, cellotriose, cellotetraose, cellopentaose and cellohexaose, which is in the powdery form having an average L/D value of 3.0 or lower, a bulk density of 0.80 g/mL or lower and an angle of repose of 60&#xb0; or lower.

Cellooligosaccharide-containing composition

A process of producing cellooligosaccharide, comprising enzymatically decomposing, in the presence of cellulase, a water-insoluble natural cellulosic material having an average degree of polymerization not greater than 700, an average particle size not greater than 100. A process of producing cellooligosaccharide, comprising enzymatically decomposing, in the presence of cellulase, a water-insoluble natural cellulosic material having an average degree of polymerization not greater than 700, containing 10% or more by mass of a colloidal cellulose component and a diethyl ether-soluble substance content less than 1% by mass.

Processes for producing cellooligosaccharide

A cellulose powder which has an average degree of polymerization of 150 to 450, an average particle diameter of 30 to 250 &#x3bc;m, an apparent specific volume exceeding 7 cm/g, and a retention of polyethylene glycol having a molecular weight of 400 to 190% or higher.

Growing community of inventors

Tokyo, Japan

Naoaki Yamasaki