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:
Mar. 10, 2009
Filed:
Jul. 02, 2002
Applicants:
Claude Vogels, Lasne, BE;
Karine Cavalier, Alres, FR;
Didier SY, Salin de Giraud, FR;
Roberto Rosa, Ranco, IT;
Inventors:
Claude Vogels, Lasne, BE;
Karine Cavalier, Alres, FR;
Didier Sy, Salin de Giraud, FR;
Roberto Rosa, Ranco, IT;
Assignee:
Solvay (Societe Anonyme), Brussels, BE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01F 5/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for the production of precipitated calcium carbonate particles, structured at the nanoscale, by carbonation of milk of lime in the presence of a crystallization controller selected from the following list: polyaspartic acid, dioctyl sodium sulphosuccinate, polyacrylic acid, the molecular weight of which is between 500 and 15 000, and citric acid. When the crystallization controller is citric acid, its concentration in the milk of lime is between 5 and 15%.