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. 31, 1991
Filed:
Jul. 03, 1990
Applicant:
Inventors:
Reiner Kunz, Waldshut-Tiengen, DE;
Konrad Kampfer, Thayngen, CH;
Assignee:
Lonza Ltd., Gampel/Valais, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D / ; C04B / ;
U.S. Cl.
CPC ...
51293 ; 51309 ; 501127 ; 501134 ; 501153 ;
Abstract
By adding very-finely-divided or highly-dispersed titanium dioxide or aluminum titanate, optionally in a mixture with aluminum oxide, sintered products of great hardness, whose fracture toughness can be adjusted over a wide range, are obtained from aluminum hydroxide according to a sol-gel process depending on the selection of the sintering conditions. The materials are especially suitable as abrasives or for the production of ceramic powder or components.