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:
Oct. 03, 1989
Filed:
Jun. 22, 1987
Applicant:
Inventors:
Dietmar Seyferth, Lexington, MA (US);
William S Rees, Jr, Arlington, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C04B / ;
U.S. Cl.
CPC ...
528-4 ; 501 96 ; 423276 ; 423284 ; 423285 ; 423294 ;
Abstract
New soluble preceramic polymers formed by reacting B.sub.10 H.sub.14-n R.sub.n, (where R is a lower alkyl group having from 1 to about 8 carbon atoms, a substituted or unsubstituted cycloalkyl group having from 3 to about 8 carbon atoms, a substituted or unsubstituted lower alkenyl group having from 2 to about 8 carbon atoms, or a substituted or unsubstituted lower aryl group having from 6 to about 10 carbon atoms, and n is a number from zero to about six) with a diamine in an organic solvent are disclosed. Preferably the diamine has the formula