Patent · US Expired

Inorganic fiber composition

US5332699A · kind A · utility

133Cited by
6References
28Claims
0Family size

Inventors

Key dates

Filing dateApr 23, 1993
Grant dateJul 26, 1994
Priority date
Expiry dateApr 23, 2013

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC03C2213/02
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Inorganic fibers which have a silicon extraction of greater than about 0.02 wt % Si/day in physiological saline solutions. The fiber contains SiO.sub.2, MgO, CaO, and at least one of Al.sub.2 O.sub.3, ZrO.sub.2, TiO.sub.2, B.sub.2 O.sub.3, iron oxides, or mixtures thereof. Also disclosed are inorganic fibers which have diameters of less than 3.5 microns and which pass the ASTM E-119 two hour fire test when processed into a fiber blanket having a bulk density in the range of about 1.5 to 3 pcf.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.