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. 22, 2003
Filed:
Mar. 05, 2002
Applicant:
Inventors:
Dimitris E. Katsoulis, Tokyo, JP;
Bizhong Zhu, Midland, MI (US);
John R. Keryk, Midland, MI (US);
Frederick J. McGarry, Weston, MA (US);
Zhongtao Li, Midland, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 7/704 ;
U.S. Cl.
CPC ...
C08G 7/704 ;
Abstract
A process for producing a cured silsesquioxane resin. The process includes fractionating the silsesquioxane resin a plurality of times utilizing an organic solvent in combination with an organic non-solvent. The fractionated resin is then stripped of excess solvent. The stripped resin is then mixed with a cross-linking compound to form a curable composition. The curable composition is cured to form a cured resin having high fracture toughness and strength without the loss of elastic modulus.