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:
Sep. 30, 2008
Filed:
Jul. 18, 2002
Applicants:
Pierre Maurice Chevalier, Penarth, GB;
Duan LI Ou, Framingham, MA (US);
Inventors:
Pierre Maurice Chevalier, Penarth, GB;
Duan Li Ou, Framingham, MA (US);
Assignee:
Dow Corning Limited, Barry, Wales, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polysiloxane having a refractive index of about 1.56 measured at light wavelength 633 nm, characterized in that the polysiloxane includes siloxane T units of the formula where A represents an alkylene group having 1 to 4 carbon atoms: n=0 or 1; m is at least 1; and Ar is an aryl group substituted by at least one iodine, bromine or chlorine atom, or is a polynuclear aromatic group. The invention includes chlorosilanes having the formula (Ar) m-(A)nSiCl3, useful in forming high refractive index polysiloxanes.