Polyimide foams with blowing agents

Details Polyimide foams with blowing agents Polyimide foams with blowing agents

C - Chemistry, Metallurgy

08

J

403/58

C08J 9/06 (2006.01) C08G 73/10 (2006.01) C08L 79/08 (2006.01)

Patent

CA 1221500

ABSTRACT OF THE DISCLOSURE Novel method for the manufacture of polyimide foams which method includes the use of solid blowing agents to operate foams which have low densities, low indentation load deflection (ILD) values and a relatively open cellular structure with larger cell sizes, the polyimide foams being derived from precursors that are essentially non-polymeric mixtures of tetracarboxylic acid esters and primary diamines.

442459

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