Substituted 5-amidotetrazoles as blowing agents in the...

Details Substituted 5-amidotetrazoles as blowing agents in the... Substituted 5-amidotetrazoles as blowing agents in the...

C - Chemistry, Metallurgy

07

D

260/312, 403/9

C07D 257/06 (2006.01) C08J 9/10 (2006.01)

Patent

CA 1337868

In a process for the production of cellular products comprising thermoplastic or rubber materials, use is made of novel blowing agents having the formula: Image (I) wherein A represents NHX, NRR' or OR, X represents H or a lower alkyl group, R represents a lower alkyl group, and R' represents a lower alkyl group. The novel blowing agents of formula (I) provide high gas yields and have high decomposition temperatures while forming only inert nitrogen gas. They are particularly suitable for the production of cellular products from high temperature thermoplastic materials such as polycarbonates.

614880

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