Kao Corporation

Hirohiko Ishida

Shigeyoshi Tanaka

Hiroyuki Yamada

Koji Mimura

Katsutoshi Ara

Kazunori Tsukuda

Seiichi Miyanaga

Hiromi Kubota

Osamu Yamashita

Masafumi Miyamoto

Daisuke Yamazaki

Kentaro Kumihashi

Toyoki Hagura

Takashi Itoi

Shunichi Akiba

Tetsuji Kito

Ryoichi Hirayama

Sakuya Tanaka

Takashi Kurahashi

Michiko Nagatsuka

Toru Tsutsumi

Keiji Tsuchikura

Yuki Tazoe

Yukio Sasajima

To provide a method for objectively evaluating or screening to identify a substance which is capable of suppressing or regulating olfaction. A method of evaluating or screening to identify an agent for suppressing olfactory sensitivity, including adding a test substance to a substrate having a voltage-dependent cation channel and evaluating or selecting a substance that inhibits an electrical activity caused by the cation channel. A method of evaluating or screening to identify an agent for suppressing olfactory sensitivity, including the following steps (1) to (4): (1) adding a test substance to a substrate having a voltage-dependent cation channel; (2) measuring electrical activity caused by the voltage-dependent cation channel; (3) comparing the electrical activity measured in step (2) with the corresponding electrical activity in a control group; and (4) evaluating or selecting the test substance that inhibits the electrical activity as an agent for suppressing olfactory sensitivity, based on the results obtained in step (3).

Method for screening olfactory sensibility inhibitor

Disclosed is a deodorant particle having a BET specific surface area of 10 m/g or more that are obtained by copolymerizing a monomer system including a crosslinkable vinyl monomer and a vinyl monomer having a heteroaromatic ring. The deodorant particles may contain a metal ion. Also disclosed is a process of producing the deodorant particles including the step of copolymerizing a monomer system containing a crosslinkable vinyl monomer and a vinyl monomer having a heteroaromatic ring by oil-in-water emulsion polymerization or precipitation polymerization using an organic solvent whose solubility parameter is different from that of the monomers by an absolute difference of 0 to 2.0. The process can further include the step of bringing the particles obtained by the polymerization into contact with a solvent having a metal salt dissolved therein to support a metal ion on the particle.

Deodorant particle

This invention provides an easily handled bactericide composition necessitating no rinsing step after treatment and exhibiting a safe and excellent bactericidal effect on surfaces which may be brought into direct contact with foods, such as hard surfaces in a house other than dishes and cooking devices. The bactericide composition of this invention comprises (a) polylysine, (b) plant essential oil, (c) organic solvent and (d) water in a specified ratio.

Bactericidal composition comprising polylysine and a plant essential oil

A mite repellant and/or miticide composition comprising at least one compound selected from the group consisting of jasmonoide, linear sesquiterpene alcohol and linear diterpene alcohol. The mite repellant and/or miticide composition according to the invention has excellent repellent effect, growth-inhibiting effect and mite repellant and/or miticide effect on mites inhabiting houses.

Mite repellant and/or miticide composition

The present invention provides a liquid deodorant suitable for deodorization of spaces and fiber products, and a hair cosmetic and skin cosmetic having a high deodorization effect. Here any of the hair cosmetic and skin cosmetic may be that referred to as a body deodorant. Namely, the present invention provides a deodorant comprising a deodorant organic dibasic acid composed of an organic dibasic acid and/or salt thereof having a difference between the first acid dissociation index (hereinafter, abbreviated as first acid dissociation index and the second acid dissociation index (hereinafter, abbreviated as second acid dissociation index or pK ) of 1.7 or more a 25&deg; C.

Deodorants

Citral acetal

Growing community of inventors

Tokyo, Japan

Hirohiko Ishida