Acoustical tile containing treated perlite

Details Acoustical tile containing treated perlite Acoustical tile containing treated perlite

1997-12-18

1999-10-12

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Silicon containing other than solely as silicon dioxide or...

10628711, 10628715, 10628716, 106DIG2, C09L 140

Patent

active

059649348

ABSTRACT:
A composition suitable for making acoustical tiles in a water-felting process comprises expanded perlite, cellulosic fiber, and, optionally, a secondary binder and mineral wool. The perlite has been treated to reduce its water retention.

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