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:
Mar. 16, 1993
Filed:
Jan. 24, 1991
Applicant:
Inventor:
Leonard M Niebylski, Birmingham, MI (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428446 ; 428447 ; 524104 ; 524424 ; 524439 ; 524490 ; 524588 ; 524592 ;
Abstract
Preceramic compositions which have particular utility in providing protective ceramic coatings on carbonaceous and other normally oxidizable substrates are prepared by dispersing about 0.4-3.0 parts by weight of a ceramic powder selected from silicon carbide, silicon nitride, and mixtures thereof with one another and/or with up to about 90% by weight of (1) a metal boride or (2) a mixture of a metal boride and zirconium metal in one part by weight of a polysilazane.