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:
Dec. 21, 1999
Filed:
Aug. 16, 1996
Applicant:
Inventors:
Antoine Guillet, Divonne-les-Bains, FR;
Remy Gauthier, Aire, CH;
Assignee:
Witco Corporation, Greenwich, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C04B / ;
U.S. Cl.
CPC ...
523209 ; 523216 ; 523214 ; 524847 ; 106490 ;
Abstract
The present invention discloses blends of silanes and specific silicas, characterized in that when the blend is compounded into a rubber formulation even after 4 months of storage following formation of the blend, an unexpectedly high proportion of the silane present is available as a coupling and reinforcing agent for the rubber formulation. Over 80% and even over 90% of the silica can be extracted or described from the blend even 4 months after formation of the blend, and rubber formulation properties indicate high availability of the silane for coupling and reinforcement.