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:
Jun. 07, 2016
Filed:
Mar. 09, 2009
Emmanuelle Allain, L'hay les Roses, FR;
Julien Hernandez, Antony, FR;
Lionel Ventelon, Nivelles, BE;
Laurent Guy, Rillieux la Pape, FR;
Marc Airiau, Rueil-Malmaison, FR;
Emmanuelle Allain, L'hay les Roses, FR;
Julien Hernandez, Antony, FR;
Lionel Ventelon, Nivelles, BE;
Laurent Guy, Rillieux la Pape, FR;
Marc Airiau, Rueil-Malmaison, FR;
RHODIA OPERATIONS, Paris, FR;
Abstract
Precipitated silicas including clusters of large primary silica particles having at the surface thereof small primary silica particles, have a specific surface area CTAB (S) ranging from 60 to 400 m/g; a cluster average size d50, as measured by XDC grading after ultrasound deagglomeration, such that d50 (nm)>(6214/S(m/g)+23; a pore volume distribution such that V/V>0.906−(0.0013×S(m/g)); and a pore size distribution such that Mode (nm)>(4166/S(m/g))−9.2; such silicas are useful reinforcing fillers for polymers.