Patent ID: 8940134
Filing Date: 2015-01-27
Classification: D21H,Y10T

Abstract:
1. Inorganic fiber paper comprising: bio-soluble inorganic fibers which have the following compositions: SiO CaO: 1 to 9 wt % MgO: 10 to 30 wt % Al and which have been subjected to a heat treatment at a temperature at least 400° C., but lower than the crystallization temperature of the fibers, and a binder, which paper exhibits recovery after compression-heating of at least 60% of its pre-compression-heating thickness, said compression-heating having comprised compressing a specimen of the paper until its pre-compression-heating thickness was reduced by 50%, and maintaining the specimen in the compressed state at 500±15° C. for 3 hours, and 0.5 hour after releasing the specimen from the compression-heating, measuring the thickness of the specimen.