×

Vermiculite composition with improved thermal expansion properties

  • US 5,340,558 A
  • Filed: 06/14/1993
  • Issued: 08/23/1994
  • Est. Priority Date: 06/14/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A vermiculite composition having the capability of exhibiting enhanced volume increase upon subjection to thermal exfoliation consisting essentially of a vermiculite ore concentrate material having at least 90% of at least one unexpanded vermiculite mineralogical specie or mixtures thereof having a specific density in the range of from 2.5 g/cm3 to 2.9 g/cm3.

View all claims
  • 9 Assignments
Timeline View
Assignment View
    ×
    ×