The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2012
Filed:
Jun. 07, 2010
James A. Gleeson, Alta Loma, CA (US);
Kalynne H. Paradis, Rancho Cucamonga, CA (US);
Brian P. Sloane, Old Toongabble, AU;
David L. Melmeth, Upland, CA (US);
Dean M. Seligman, Mission Viejo, CA (US);
James A. Gleeson, Alta Loma, CA (US);
Kalynne H. Paradis, Rancho Cucamonga, CA (US);
Brian P. Sloane, Old Toongabble, AU;
David L. Melmeth, Upland, CA (US);
Dean M. Seligman, Mission Viejo, CA (US);
James Hardie Technology Limited, Dublin, IE;
Abstract
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.