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:
Aug. 05, 2003
Filed:
Nov. 27, 2001
Applicant:
Inventors:
Evelyne Prat, Pantin, FR;
Laurent Frouin, L'Hay les Roses, FR;
Assignee:
Rhodia Chimie, Courbevoie Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
C04B 4/000 ; C04B 1/400 ; C08J 3/03 ; C08J 3/75 ; C08L 2/102 ;
U.S. Cl.
CPC ...
C04B 4/000 ; C04B 1/400 ; C08J 3/03 ; C08J 3/75 ; C08L 2/102 ;
Abstract
This invention relates to an aqueous suspension including a mixture of at least one aqueous suspension of precipitated silica and of at least one latex, in which the aqueous suspension of precipitated silica has a solids content of between 10 and 40% by weight, has a viscosity lower than 4×10 Pa s at a shear of 50 s and, after centrifuging at 7500 revolutions per minute for 30 minutes, produces a supernatant containing more than 50% of the weight of the silica initially in suspension. This suspension can be employed in compositions based on an inorganic binder and in concrete compositions.