Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Nissan Chemical Industries Limited

Panasonic Electric Works Co., Ltd.

Nissan Chemical Corporation

Sebastien Cochet

Michael Popall

Herbert Wolter

Kentaro Ohmori

Ruth Houbertz-Krauss

Tetsuo Sato

Takao Hayashi

Naoyuki Kondo

Lothar Froehlich

Ruth Houbertz

[Problem] To provide a polymerizable composition having an excellent transparency in near-infrared wavelength and excellent heat resistance, and a method for producing the same. [Means of Solving the Problem] A polymerizable composition includes: a reactive silicone compound obtained by polycondensing a diaryl silicic acid compound of Formula [1] below with a silane compound, selected under compounds of Formula [2] and Formula [2b] below in the presence of an acid or a base; and (b) a compound having at least one polymerizable group selected from the group consisting of alkenyl group and (meth)acryl group, wherein Arand Arare independently a phenyl group optionally substituted with a C-Calkyl group, and X is a group which can undergo a hydrolytic condensation reaction, and wherein Aris naphthyl or anthracyl substituted with at least one group having a polymerizable double bond, or wherein Aris phenyl substituted with at least one group having a polymerizable double bond other than vinyl, or is phenyl substituted with at least two groups having a polymerizable double bond. 

Polymerizable compositions, cured products obtained therewith, and use of these materials

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&#x2550;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.

Condensation products of silicic acid derivatives and optical waveguide devices using the same

Growing community of inventors

Würzburg, Germany

Sebastien Cochet