07658794 is referenced by 7 patents and cites 978 patents.

This invention relates to a formulation with the addition of low density additives of volcanic ash, hollow ceramic microspheres or a combination of microspheres and volcanic ash or other low density additives into cementitious cellulose fiber reinforced building materials. This formulation is advantageously lightweight or low density compared as compared to current fiber cement products without the increased moisture expansion and freeze-thaw degradation usually associated with the addition of lightweight inorganic materials to fiber cement mixes. The low density additives also give the material improved thermal dimensional stability.

Title
Fiber cement building materials with low density additives
Application Number
10/414505
Publication Number
7658794 (B2)
Application Date
April 15, 2003
Publication Date
February 9, 2010
Inventor
Dean M Seligman
Mission Viejo
CA, US
David L Melmeth
Upland
CA, US
Brian P Sloane
Old Toongabbie
AU
Kalynne H Paradis
Rancho Cucamonga
CA, US
James A Gleeson
Alta Loma
CA, US
Assignee
James Hardie Technology
IE
IPC
C04B 14/24
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