Toyo Kasei Kogyo Company Limited

Hiroaki Tanaka

Atsuhiro Onishi

Koichi Matsunami

Masanao Ebara

Satoshi Nakagawa

Kunihiro Shimamoto

Atuhiro Onishi

Hideki Ogawa

The 1,5&prime;-bitetrazole of the invention comprises 1,5&prime;-bitetrazole, and ammonia or an amine. The 1,5&prime;-bitetrazole of the invention decomposes sharply and generates a nontoxic gas.

Substituted ammonium salt of 1,5&prime;-bitetrazole

Disclosed is a novel blowing agent of tetrazoles and their derivatives. The blowing agent comprising tetrazole derivatives is harmless, odorless and inexpensive. Moreover, the agent is low in physical sensitivities and safe in use, and generates clean gas by being sharply decomposed only due to temperature. The blowing agent of tetrazoles and their derivatives employs aminotetrazole derivatives represented by the general formula (1). The blowing agent offers foaming agents for resin molded bodies having good thermal properties, inflators for air bags serving as automobile safety protection, or smoking agents for diffusing chemicals by a low-cost inexpensive synthetic process.

Blowing agents of tetrazoles and their derivatives

Blowing agents of tetrazoles and their derivatives which have a melting point over 200.degree. C. and are used to manufacture the high quality foaming thermoplastic synthetic resin moldings, especially engineering or superengineering plastic moldings and said blowing agents generate no harmful gases and do not cause the deterioration of the thermoplastic synthetic resin moldings.

Blowing agents of the tetrazoles and their derivatives

Growing community of inventors

Takasago, Japan

Hiroaki Tanaka