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:
Dec. 03, 2002
Filed:
May. 26, 2000
Applicant:
Inventor:
Michael Windsor Symons, Pretoria, ZA;
Assignee:
Windsor Technologies Limited, Nassau, BS;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 1/200 ; C04B 1/438 ; C04B 3/810 ; C04B 1/818 ;
U.S. Cl.
CPC ...
C04B 1/200 ; C04B 1/438 ; C04B 3/810 ; C04B 1/818 ;
Abstract
A method of making a composite product such as a building board, includes the steps of mixing together finely divided lignocellulosic fibres, a hydraulic binder, and water optionally containing a polyvinyl alcohol, to form a paste; introducing a foam generated from a polyvinyl alcohol into the paste and mixing to form a foamed product; forming the foamed product into a desired shape; and allowing the hydraulic binder to set to form the composite product.