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:
Apr. 13, 2010
Filed:
Feb. 03, 2006
Naoyuki Kondo, Sakai, JP;
Takao Hayashi, Moriguchi, JP;
Michael Popall, Wuerzburg, DE;
Lothar Froehlich, Markt Rodach, DE;
Ruth Houbertz, Werneck-Schraudenbach, DE;
Sebastien Cochet, Wuerzburg, DE;
Naoyuki Kondo, Sakai, JP;
Takao Hayashi, Moriguchi, JP;
Michael Popall, Wuerzburg, DE;
Lothar Froehlich, Markt Rodach, DE;
Ruth Houbertz, Werneck-Schraudenbach, DE;
Sebastien Cochet, Wuerzburg, DE;
Panasonic Electric Works Co., Ltd., Kadoma-shi, JP;
Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V., Munich, DE;
Abstract
The present invention relates to condensation products of silicic acid derivatives usable especially in optical waveguides and particularly to a condensation product obtained by condensing a silane diol compound (A) of the general formula (1): RSi(OR)(1) wherein Rrepresents a group having at least one aromatic group and having 6 to 20 carbon atoms, and Rrepresents hydrogen (H which may also be a heavy hydrogen D), with a modified silane compound (B) of the general formula (2): RSi(OR)(2) wherein Rrepresents an organic group having at least one C═C double bond; and Rrepresents a group of CH(n=a number of 1 or 2), in the molar ratio 1.1 to 1.4:1 [(A):(B)], and to a process for producing the same condensation product, as well as to an optical waveguide device fabricated using the same condensation product.