Sumitomo Chemical Company, Limited

Atsushi Higo

Ryu Takeko

Akira Kawamura

Taketoshi Kikuchi

Kunihito Miyake

Hideaki Awa

Provided are an organic silicon compound of the following formula (I): (wherein, Rto Rrepresent each independently alkyl, alkoxy, aryloxy, cycloalkyl, alkylcycloalkyl, aryl, dialkylamino or the like, and the aryloxy and aryl may be substituted with a substituent selected from the group consisting of alkyl, alkoxy and alkoxyalkyl.) which can be used for suppression of coloration and thermal deterioration of an organic material in molding, and an organic material composition containing the organic silicon compound and a method of producing the organic silicon compound.

Organic silicon-based compound and method of producing the same

An optical laminate comprising an anti-reflection film, polarizing film, adhesive layer, glass cell for liquid crystal display, adhesive layerand polarizing filmlaminated sequentially, wherein the ratio (B/A) of the maximum value B of the loss tangent of the adhesive layerto the maximum value A of the loss tangent of the adhesive layeris 1.1 or more. The maximum value of the loss tangent means the maximum value of loss modulus (E&#x2033;) storage modulus (E') (=tan &#x3b4;), each measured by heating the adhesive layer in a temperature range of &#x2212;70&#xb0; C. to 200&#xb0; C. at a temperature rising rate of 4&#xb0; C./min and a frequency of 1 Hz.

Optical laminate

To provide an adhesive comprising an acrylic resin (1), an acrylic resin (2), a silicone oligomer (3) and a crosslinking agent (4): wherein (wherein Rrepresents hydrogen atom or methyl group, and Rrepresents alkyl or aralkyl groups having 1 to 14 carbon atoms wherein hydrogen atom(s) of the Rmay be substituted with alkoxy group having 1 to 10 carbon atoms), and (wherein Rand Rrepresent alkyl group or phenyl group, X and Y represent hydrogen atom, optionally substituted alkyl group, optionally substituted phenyl group, optionally substituted alkoxy group, optionally substituted phenoxy group, optionally substituted aralkyl group, optionally substituted aralkyloxy group, vinyl group, vinyloxy group, 1,2-epoxycyclohexyl group, 1,2-epoxycyclohexyloxy group, styryl group, styryloxy group, methacryloyloxy group, amino group, ureido group, mercapto group or isocyanate group).

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Toyonaka, Japan

Atsushi Higo