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:
Jul. 12, 1988
Filed:
Sep. 14, 1987
Applicant:
Inventors:
David R Kaar, St. Paul, MN (US);
Harold G Sowman, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C03C / ; B01J / ;
U.S. Cl.
CPC ...
501 95 ; 501 10 ; 501 12 ; 501 32 ; 501153 ; 423594 ; 423600 ; 25231501 ; 2523157 ; 523442 ; 523458 ; 523515 ; 524413 ; 524435 ; 75229 ; 264D / ;
Abstract
Homogeneous, nonporous ceramic fibers containing at least one magnetically-unaligned, microcrystaline transition metal oxide spinel phase. The ceramic fibers may be used in polymeric, ceramic and metallic composites. Said ceramic spinel is produced by dispersing soluble inorganic and transition metal compounds in an aqueous mixture, concentrating to produce a viscous concentrate, shaping into the desired article, gelling the shaped article, and heating to produce the transition metal spinel article. Beads, bubbles, flakes, microspheres, films and granules may be made as well as fibers.