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:
Jun. 04, 2013
Filed:
Jul. 06, 2012
Wenzhuo Guo, Cupertino, CA (US);
Vladimir K. Dioumaev, Mountain View, CA (US);
Joerg Rockenberger, Redwood City, CA (US);
Brent Ridley, San Carlos, CA (US);
Wenzhuo Guo, Cupertino, CA (US);
Vladimir K. Dioumaev, Mountain View, CA (US);
Joerg Rockenberger, Redwood City, CA (US);
Brent Ridley, San Carlos, CA (US);
Kovio, Inc., San Jose, CA (US);
Abstract
Polysilanes, inks containing the same, and methods for their preparation are disclosed. The polysilane may have the formula H-[(AHR)(c-AH)]—H, where A is independently Si or Ge; R is H, -AHR, halogen, aryl or substituted aryl; (n+a)≧10 if q=0, q≧3 if n=0, and (n+q)≧6 if both n and q≠0; p is 1 or 2; and m is from 3 to 12. The method may include combining a silane compound of the formula AHR, AHRand/or c-AHRwith a catalyst of the formula RRMX(or an immobilized derivative thereof) to form a poly(aryl)silane; then washing the poly(aryl)silane with an aqueous washing composition and contacting the poly(aryl)silane with an adsorbent to remove the metal M. Alternatively, the method may include halogenating a polyarylsilane and reducing the halopolysilane with a metal hydride to form the polysilane.