Shin-etsu Chemical Co., Ltd.

Tetsuo Kitagaki

Akira Yamamoto

Kinya Ogawa

Naoyuki Sakato

A control composition which comprises Z,Z/Z,E-7,11-hexadecadienyl acetate and Z,Z/Z,E-7,11-hexadecadienyl alcohol is released into a cotton field in a weight ratio of Z,Z/Z,E-7,11-hexadecadienyl acetate to Z,Z/Z,E-7,11-hexadecadienyl alcohol ranging from 99.2:0.8 to 90:10. The control composition is preferably released in the weight ratio defined above and in a rate ranging from 4 to 80 mg/hr/hectare of field.

Method for controlling pink bollworm through disturbance of male-female

The invention provides a novel method for shaping a green body of a ceramic powder by use of a specific organic binder, which is a modified polyvinyl alcohol comprising monomeric units expressed by the formula ##STR1## in which R is a monovalent hydrocarbon group having at least 4 carbon atoms, Z is a divalent linking unit of --O-- or --O--CO-- and a is zero or 1, in a limited mole fraction, Due to the strong binding power and lubricity of the binder polymer, the wet blend of ceramic powder with an aqueous solution of the binder has good workability in shaping and the wet shaped body has good shape retainability. The shaped body after drying also has excellent mechanical strength to facilitate handling.

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Kanagawa, Japan

Tetsuo Kitagaki