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:
Feb. 17, 1981
Filed:
May. 01, 1979
Applicant:
Inventors:
Jean Machurat, Neuville/s/Saone, FR;
Jean-Claude Morawski, Decines, FR;
Georges Vrisakis, Collonges-au-Mont-d'Or, FR;
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C / ; C01B / ;
U.S. Cl.
CPC ...
1062 / ; 423339 ; 260765 ; 260 4215 ; 106309 ;
Abstract
A synthetic amorphous silica having a CTAB surface area of from about 80 to about 125 m.sup.2 /g and a structure index of at least 0.80 is disclosed as adapted for the reinforcement of elastomeric materials, as well as methods for the preparation thereof.