Invention Grant
US07803731B2 Fire resistant glass fiber 有权
耐火玻璃纤维

  • Patent Title: Fire resistant glass fiber
  • Patent Title (中): 耐火玻璃纤维
  • Application No.: US11893191
    Application Date: 2007-08-15
  • Publication No.: US07803731B2
    Publication Date: 2010-09-28
  • Inventor: Elam A. Leed
  • Applicant: Elam A. Leed
  • Applicant Address: US CO Denver
  • Assignee: Johns Manville
  • Current Assignee: Johns Manville
  • Current Assignee Address: US CO Denver
  • Agent Robert D. Touslee
  • Main IPC: C03C13/06
  • IPC: C03C13/06
Fire resistant glass fiber
Abstract:
A glass fiber composition comprises about 52-65 weight % SiO2; less than or equal to 4 weight % Al2O3; about 7-16 weight % Fe2O3; greater than 6 weight % and less than or equal to about 14 weight % R2O; about 6-25 weight % CaO; less than or equal to 10 weight % MgO; and about 10-25 weight % RO; wherein R2O represents alkali metal oxides and RO represents alkaline earth metal oxides. Preferably, the glass fiber composition has a liquidus temperature of less than 2350° F.; and a viscosity at a liquidus temperature of the glass fiber composition of greater than 500 poise; and fire resistant glass fiber formed from the glass fiber composition has a biodissolution rate of greater than 50 ng/cm2/hr.
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