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. 27, 2003
Filed:
Mar. 17, 2000
John T. Slagter, Kentwood, MI (US);
Other;
Abstract
A polymer-cement composite comprises, by weight percent, about 40% to 50% inert, inorganic filler material, such as silica sand; about 12% to 23% latex, preferably in aqueous suspension; about 20% to 25% hydraulic cement; and about 7% to 13% reactive silica. The reactive silica is a pozzolanic material, and in preferred embodiments, where the cement is portland cement, comprises an advantageous mixture of precipitated and ground silica. All solid components have a particle size of less than about 300 microns. The polymer-cement composite is preferably made by dry mixing of the powdered components throughly in a high intensity mixer, adding the liquid components, and wet mixing to form a thoroughly blended, de-aired green mixture. The green mixture is formed into any desired shape, cured, and dried. Preferably, the product is cured in a warm, moist environment.