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:
Nov. 17, 1987
Filed:
Aug. 02, 1985
Carl G Gustafson, Peekskill, NY (US);
Carolyn A Ertell, Yonkers, NY (US);
Stauffer Chemical Company, Westport, CT (US);
Abstract
A granular anhydrous dicalcium phosphate having a particle of a size sufficient for direct compression tablets and a surface area of greater than 5 meters.sup.2 /gram can be direct compression tableted. This product can be prepared by dehydrating granules of dicalcium phosphate dihydrate of a particle size sufficient for direct compression tableting and sufficiently large to allow the dehydration of the granules without lumping and without fracturing a majority of the granules. The granules are heated at a temperature sufficient to form anhydrous dicalcium phosphate. The product is a granular anhydrous dicalcium phosphate exhibiting good compressibility, flowability and whiteness while being in an anhydrous state.