Nippon Shokubai Co., Ltd.

Komatsulite Mfg. Co., Ltd.

Yukihiro Kasano

Junichi Nakamura

Yasunori Tsujino

Masafumi Yamashita

Kunio Takahashi

Ai Matsumoto

Kazushi Torii

Taku Iwamura

Yasuhisa Nakashima

Takuo Sugioka

Koji Tachi

Nobuyuki Ando

Hiroki Kawada

Tomoya Arai

Tatsushi Hirauchi

Makiko Masuda

Yoshihiro Miyawaki

Yuji Muraoka

Masanori Aoki

Provided is a water-absorbing agent that causes no or little fluctuation of feed rate when fed with use of a feeder. A water-absorbing agent containing a water-absorbing resin as a main component, the water-absorbing agent satisfying the following (a) and (b): (a) K-index is 70 or more; and (b) Moisture absorption blocking ratio, after 30 minutes of standing at a temperature of 25&#xb0; C. and a relative humidity of 80% RH, is 70 weight % or less, the K-index being defined by the following equation: K-index=100&#x2212;(&#x2212;438+3.6&#xd7;angle of repose+3.5&#xd7;angle of difference+7.9&#xd7;compressibility rate+290&#xd7;bulk density (EDANA method)).

Absorption agent and absorbent article

The present invention provides a curable resin composition which exhibits the following properties: excellent basic performances such as heat resistance; sufficient optical characteristics such as transparency; and excellent demoldability when a molded body of the composition is demolded at the time of molding. The present invention further provides a molded body obtainable by molding the curable resin composition and a production method thereof. A curable resin composition for molded bodies, including a thermocurable resin, wherein the curable resin composition for molded bodies includes at least one compound selected from the group consisting a compound having a boiling point of 260&#xb0; C. or less at one atmospheric pressure, a silicon compound having a polyoxyalkylene chain, a silicon compound having an aryl group, and a silicon compound having a polyoxyalkylene chain and an aryl group.

Curable resin composition for molded bodies, molded body, and production method thereof

To provide: a curable resin composition which can be continuously produced without gelling during production, and has excellent basic performances such as heat resistance and moisture resistance; an optical member which has excellent optical characteristics such as high transparency and exhibits excellent performances in a harsh use environment; and a method for controlling an optical material. A curable resin composition including an organic resin component and a metalloxane component, wherein the organic resin component includes a resin component having an Abbe number of 45 or more and the metalloxane component has a metalloxane bond; an optical material comprising the above-mentioned curable resin composition; an optical member produced by curing the optical material; and a method for controlling an Abbe number and/or a refractive index of an optical material.

Curable resin composition, optical material, and method for controlling optical material

An imaging lens unit configured for processing by a solder reflow process, and includes a lens group of one or more lenses; and a lens tube supporting the lens group. The imaging lens unit comprises one or more cationically-cured epoxy resin lenses formed from an cationically-curable epoxy resin material, the lens tube is formed from a thermoplastic resin material having a deflection temperature under load of at least 200&#xb0; C. The imaging lens unit has a clearance between the lens tube and at least one of the cationically-cured epoxy resin lenses and has lens supporting portions provided at least three locations inside the lens tube that support the at least one cationically-cured epoxy resin lens. The lens unit can be miniaturized. The imaging lens unit also provides excellent optical characteristics without deteriorating the optical characteristics in alignment of the centers of the lens and the diaphragm.

Imaging lens unit

Growing community of inventors

Suita, Japan

Yukihiro Kasano