科思姆公司分别用物理法和化学法两种方法制得聚酰亚胺发泡材料，分为硬质和弹性两种类型，其中硬质泡沫是属于高强高模闭孔型，而弹性泡沫则有闭孔、开孔和部分开孔型。公司正在研制微泡产品，希望实现形状和倍率的准确控制。

Polyimide foams are prepared by physical and chemical methods respectively, and are divided into hard and elastic foams, in which hard foams belong to high strength and high mold closed foams, and elastic foams include closed foams, open foams and partial open foams. The company is developing microfoam products, hoping to achieve accurate control of the shape and magnification.