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:
Oct. 26, 1999
Filed:
Dec. 22, 1997
Applicant:
Inventors:
Assignee:
Huels Silicone GmbH, Nuenchritz, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524492 ; 241 15 ; 241 16 ; 241 27 ; 423325 ; 423335 ; 524493 ; 524442 ;
Abstract
Deaggregated highly disperse silicic acid, in which the average particle size is less than 100 nm, preferably less than 50 nm, is prepared by extremely high mechanical stress. The deaggregated silicic acid is employed as a filler in silicone rubber mixtures.