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. 11, 1984
Filed:
Jul. 08, 1983
Applicant:
Inventors:
Fawzy G Sherif, Stony Point, NY (US);
Helmut W Majewski, Nyack, NY (US);
Francis A Via, Yorktown Heights, NY (US);
Assignee:
Stauffer Chemical Company, Westport, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423309 ; 423267 ; 423308 ;
Abstract
Dicalcium phosphate dihydrate compositions having improved monofluorophosphate compatibility are prepared by reacting a lime slurry with phosphoric acid to form a monocalcium phosphate solution, and then further reacting the monocalcium phosphate solution with additional lime slurry to a pH in the range of from above about 2.2 to below about 5.5.