Asahi Kasei Kogyo Kabushiki Kaisha

Asahi Kasei Kabushiki Kaisha

Shigeo Yokoyama

Itaru Watanabe

Maomi Seko

Kyoji Kimoto

Hirotsugu Miyauchi

Teruyuki Misumi

Yasumichi Yamakoshi

Mitsunobu Fukumoto

Einosuke Fujimoto

Yutaka Kobayashi

Chloroalkylthiolcarbamate compounds of the formula: ##STR1## wherein Z represents ##STR2## and when Z is ##STR3## n is an integer of 4 to 10, whereas when Z is ##STR4## n is an integer of 3 to 10. These compounds are useful as effective herbicides having no harmful effect on the ecosystem, particularly extremely low toxicity to fish, and can be obtained, for example, by reacting the corresponding thiolcarbamate derivatives with a chloroalkyl halide.

Thiolcarbamate compounds and their use as herbicides

A perfluorocarbon type cation exchange membrane prepared by treatment with an oxidizing agent of a cation exchange membrane containing perfluorocarbon polymers having specific pendant N-sulfonamide groups has improved electrochemical characteristics when used as a membrane in electrolysis of aqueous alkali halide solution.

Process for production of perfluorocarbon type cation exchange membrane

Growing community of inventors

Yokohama, Japan

Shigeo Yokoyama