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:
Jan. 31, 1989
Filed:
May. 07, 1987
Applicant:
Inventors:
Harold G Sowman, St. Paul, MN (US);
Tai T Tran, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 35 ; 501 95 ; 501153 ; 264D / ;
Abstract
Refractory fibers comprising a homogeneous mixture of 60 to 95 weight percent amorphous alumina and 40 to 5 weight percent amorphous phosphorus pentoxide. The fibers optionally can contain chloride, and up to 20 weight percent carbon derived from the alumina precursor material. Other organic residues can be present. The fibers are useful in the manufacture of fireproof consumer fabrics as well as reinforcement or polymeric composites.