Tokyo Organic Chemical Industries, Ltd.

Rohm and Haas Company

Hiroshi Kuyama

Wataru Agui

Nobuyuki Higosaki

Toshio Furukawa

Yukihiro Kaneko

Keizo Ogino

Masahiko Abe

Shuji Tamura

Yoshiya Kurachi

Koichiro Yamanari

Hiroshi Akiyama

Kohji Oinuma

Masuo Kuchikata

Hiroshi Tsuyuki

Yoshihiro Nitta

A carbonaceous adsorbent to be used for the removal of a pyrogen dissolved in water is disclosed. The adsorbent is obtained by carbonizing porous beads of a cross-linked polymer. This adsorbent is favorably used for the removal of endotoxin in the production of pure water from deionized water resulting from the treatment with ion-exchange resins.

Carbonaceous adsorbent for removal of pyrogen from water

Carbonaceous adsorbent for removal of pyrogen and method of producing

A carbonaceous absorbent to be used for the removal of a pyrogen dissolved in water is disclosed. The absorbent is obtained by carbonizing porous beads of a cross-linked polymer. This absorbent is favorably used for the removal of endotoxin in the production of pure water from deionized water resulting from the treatment with iron-exchange resins.

This application relates to novel metal salts of N-substituted alkylenebisdithiocarbamic acids and their use as agricultural fungicides.

Metal salt of N-substituted alkylenebisdithiocarbamic acid

A process of sulfonating a crosslinked copolymer to yield a cation exchange resin using liquid sulfur trioxide dissolved in a chlorinated hydrocarbon solvent as the sulfonating reagent.

Sulphonation method for manufacture of a cation exchange resin

Polyvinylimidazoline flocculants are converted to an easily handled granular form by pelletizing with siliceous material and a lower alcohol, or mixture of lower alcohols with esters or ketones, and subsequently drying the pellets.

Granular flocculants and their manufacture

Fungicidal or algicidal agents are provided which consist of a copper salt of an acid which is an unsaturated dibasic acid of the formula ##STR1## wherein R is hydrogen or lower alkyl together with an inorganic copper compound which is sparingly soluble or insoluble in water for example basic copper chloride, basic copper sulfate, basic copper carbonate, copper silicate, cuprous oxide, basic copper phosphate and copper hydroxide. The copper salt and the inorganic copper compound are preferably divided a finely as possible and thereafter mixed. The compositions are of low toxicity, provide a lasting effect and do not give rise generally to secondary noxious products.

Fungicidal/algicidal composition for non-medical uses

Fungicidal or algicidal agents are provided which consist of a copper salt of an acid which is an unsaturated dibasic acid of the formula

Growing community of inventors

Urawa, Japan

Hiroshi Kuyama