Yokogawa Electric Corporation

Hoya Corporation

Asahi Kasei Kabushiki Kaisha

Pentax Ricoh Imaging Company, Ltd.

Q.p. Corporation

Futamura Kagaku Kabushiki Kaisha

Ayako Maruta

Hideki Yamaguchi

Lianzhen Lin

Masanori Hori

Hiroyuki Nakayama

Kazuhiro Yamada

Mineta Suzuki

Takanobu Shiokawa

Mineo Hasegawa

Nobuyuki Sasagawa

Yoshiharu Kimura

Masaaki Kunou

Sulfate ester modified cellulose nanofibers having an average fiber diameter in the range of 1 nm to 500 nm, and having sulfate ester modified hydroxyl groups on surfaces of the cellulose nanofibers. A method of producing cellulose nanofibers that are nanosized, that have a high crystallinity degree, and that have large aspect ratios, the method being a chemical method that does not require any physical pulverization, that is energy-saving, and that can be performed under mild reaction conditions. A method of producing modified cellulose nanofibers including modifying the surfaces of the cellulose nanofibers through esterification or urethanization. A method of producing cellulose nanofibers includes impregnating cellulose with a fibrillation solution containing dimethylsulfoxide, at least one carboxylic acid anhydride selected from acetic anhydride and propionic anhydride, and sulfuric acid to fibrillate the cellulose.

Sulfate ester modified cellulose nanofibers and method for producing cellulose nanofibers

Provided is a method of producing fine cellulose fibers that are nanosized, that have a high crystallinity degree, and that are less vulnerable to fiber shape damage, the method including impregnating cellulose with a fibrillation solution to fibrillate the cellulose without mechanical crushing, and modifying the cellulose. The method of producing cellulose microfibrils of the present invention includes impregnating cellulose with a fibrillation solution containing a carboxylic acid vinyl ester or an aldehyde and an aprotic solvent having a donor number of 26 or more to fibrillate the cellulose. The aldehyde is at least one kind of aldehyde selected from the group consisting of an aldehyde represented by the following formula (1), paraformaldehyde, cinnamaldehyde, perillaldehyde, vanillin, and glyoxal:R&#x2014;CHO&#x2003;&#x2003;(1)where Rrepresents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms, an alkenyl group, a cycloalkyl group, or an aryl group.

Fine cellulose fiber and production method for same

A method for forming an anti-reflection coating of alkali-treated silica aerogel on a substrate, comprising the steps of hydrolyzing and polymerizing alkoxysilane in the presence of a base catalyst to prepare an alkaline sol, adding an acid catalyst to the alkaline sol to carry out further hydrolysis and polymerization to prepare a first acidic sol, hydrolyzing and polymerizing alkoxysilane in the presence of an acid catalyst to prepare a second acidic sol, mixing the first and second acidic sols, applying the resultant mixed sol to the substrate, drying it, and treating the resultant silica aerogel coating with an alkali.

Method for forming anti-reflection coating and optical element

A method for producing a silica aerogel film by hydrolyzing and polymerizing alkoxysilane in the presence of a base catalyst to prepare an alkaline sol, adding an acid catalyst to the alkaline sol to carry out further hydrolysis and polymerization to prepare a first acidic sol, hydrolyzing and polymerizing alkoxysilane in the presence of an acid catalyst to prepare a second acidic sol, applying a mixture of the first and second acidic sols to a substrate, and drying it.

Production method of silica aerogel film, anti-reflection coating and optical element

The composition for forming an ink-receiver layer according to the invention comprises (A) a monomer component containing a monofunctional monomer; (B) a powder containing an egg white component; and (C) eggshell powder. The component (A) may further contain a polyfunctional monomer with two or more functions.

Composition for forming ink-receiver layer, method of producing the same, and printing base

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Kyoto, Japan

Ayako Maruta