Lintec Corporation

Masami Matsui

Mikihiro Kashio

Hidekazu Nakayama

Yae Ishikawa

The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1),RSiO&#x2003;&#x2003;(a-1)wherein Ris a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises an acid anhydride structure in its molecule. This invention provides: a curable composition that produces a cured product that exhibits excellent adhesion, excellent delamination resistance, and excellent heat resistance, and exhibits excellent workability during the application step, a method for producing the same, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical element-securing adhesive or an optical element sealing material, and an optical device.

Curable composition, method for producing curable composition, cured object, method for using curable composition, and optical device

The present invention is a curable polysilsesquioxane compound comprising at least one structural unit represented by CHRX-D-SiO,

Curable polysilsesquioxane compound, production method thereof, curable composition, cured product and use method of curable composition

The present invention is a curable composition comprising a component (A) and a component (B),

Curable composition, method for manufacturing curable composition, cured product, method for using curable composition, and optical device

The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1),RSiO&#x2003;&#x2003;(a-1)wherein Ris a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises a nitrogen atom in its molecule. This invention provides: a curable composition that produces a cured product that exhibits excellent adhesion, excellent delamination resistance, and excellent heat resistance, and exhibits excellent workability during the application step, a method for producing the same, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical element-securing adhesive or an optical element sealing material, and an optical device.

The present invention is a curable composition comprising a component (A), a component (B), a component (C), and a component (D), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:20,

Curable composition, cured product, method for using curable composition, and optical device

The present invention is a curable polysilsesquioxane compound comprising one structural unit or two or more structural units represented by RSiO, the curable polysilsesquioxane compound having aSi nuclear magnetic resonance spectrum that has a first peak top within a range of &#x2212;60 ppm or more and less than &#x2212;54 ppm, has a second peak top within a range of &#x2212;70 ppm or more and less than &#x2212;61 ppm, and substantially does not have a peak within a range of &#x2212;53 ppm or more and less than &#x2212;45 ppm, and

Curable polysilsesquioxane compound, production method therefor, curable composition, cured product and use method of curable composition

The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1),RSiO&#x2003;&#x2003;(a-1)wherein Ris a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises a sulfur atom in its molecule. This invention provides: a curable composition that produces a cured product that exhibits excellent adhesion, excellent delamination resistance, and excellent heat resistance, and exhibits excellent workability during the application step, a method for producing the same, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical element-securing adhesive or an optical element sealing material, and an optical device.

The present invention relates to: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:30, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material. The present invention provides a curable composition that produces a cured product that exhibits excellent transparency, excellent heat resistance, excellent crack resistance, and high adhesion, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material, a sealed optical device in which an optical device is sealed with a cured product of the curable composition, and a method for producing the same. Component (A): a silane compound copolymer (I) that is represented by a formula (a-1), wherein Ris a hydrogen atom or the like, Xis a halogen atom, a cyano group, or a group represented by OG (wherein G is a protecting group for a hydroxyl group), D is a single bond or the like, Ris an alkyl group having 1-20 carbon atoms or the like, Z is a hydroxyl group, an alkoxy group having 1-10 carbon atoms, or a halogen atom, m and n are a positive integer, and o, p, q, and r are 0 or a positive integer, Component (B): at least one silane coupling agent selected from a silane coupling agent that includes a nitrogen atom in its molecule and a silane coupling agent that includes an epoxy group in its molecule, and Component (C): a silane coupling agent that has an acid anhydride structure.(CHRX-D-SiO)(RSiO)(CHRX-D-SiZO)(RSiZO)(CHRX-D-SiZO)(RSiZO)&#x2003;&#x2003; (a-1)

Curable composition, cured product, method for using curable composition, photoelement sealing body and method for producing photoelement sealing body

The present invention is: a curable composition comprising a component (A) and a component (B) in a mass ratio (component (A):component (B)) of 100:0.1 to 100:50; a cured product obtained by curing the curable composition; and a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material. The component (A) is a silane compound polymer that is represented by a formula (a-1) (where in the formula: Ris a group selected from an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, Z is a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms, or a halogen atom, m is a positive integer, and n and o are independently 0 or a positive integer, provided that a plurality of Rare either identical or different, and a plurality of Z are either identical or different), and the component (B) is a silane coupling agent that comprises a sulfur atom-containing functional group in its molecule.(RSiO)(RSiZO)(RSiZO)&#x2003;&#x2003;(a-1)

Curable composition, curing product, and method for using curable composition

The present invention is: a curable composition comprising a component (A) and a component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:90, the component (A) being a silane compound polymer that is represented by a formula (a-1), wherein Ris a group selected from an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, Z is a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms, or a halogen atom, m is a positive integer, and n and o are independently 0 or a positive integer, provided that a plurality of Rare either identical or different, and a plurality of Z are either identical or different, and the component (B) being a silane coupling agent that comprises an isocyanurate skeleton in its molecule.(RSiO)(RSiZO)(RSiZO)&#x2003;&#x2003;(a-1)

The present invention provides: a curable polysilsesquioxane compound comprising at least one structural unit represented by RSiO(wherein Ris a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group), aSi nuclear magnetic resonance spectrum of the curable polysilsesquioxane compound having a first peak top within a range of &#x2212;65 ppm or more and less than &#x2212;55 ppm, having a second peak top within a range of &#x2212;73 ppm or more and less than &#x2212;65 ppm, and having a third peak top within a range of &#x2212;82 ppm or more and less than &#x2212;73 ppm, and the ratio of an integral value (P1) of a first peak to the total of the integral value (P1) of the first peak, an integral value (P2) of a second peak, and an integral value (P3) of a third peak being more than 0% and less than 10%; a method for producing the same; a curable composition; a cured product; and a method for using curable composition or the like as an optical device-securing material. According to the present invention, there can be provided: a curable compound that produce a cured product that exhibits excellent heat resistance, and exhibits high adhesion even at a high temperature; a method for producing a curable compound; a cured product obtained by curing the curable composition; and a method for using the curable compound or the curable composition.

Curable polysilsesquioxane compound, method for producing same, curable composition, cured product, and method for using curable composition or the like

The present invention is: a curable composition comprising a component (A) and a component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:40, the component (A) being a silane compound copolymer that is represented by a formula (a-1), and has a weight average molecular weight of 800 to 30,000,(CHRX-D-SiO)(RSiO)(CHRX-D-SiZO)(RSiZO)(CHRX-D-SiZO)(RSiZO)&#x2003;&#x2003; (a-1)wherein Ris a hydrogen atom, etc., Xis a halogen atom, etc., D is a single bond, etc., Ris a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, etc., Z is a hydroxyl group, etc., m and n are independently a positive integer, and o, p, q, and r are independently 0 or a positive integer, and the component (B) being a silane coupling agent that includes a nitrogen atom in its molecule. With the invention, it is possible to provide: a curable composition that produces a cured product that exhibits excellent heat resistance, excellent transparency, and high adhesion; a cured product obtained by curing the curable composition; and a method for using the curable composition as an optical device adhesive, etc.

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Tokyo, Japan

Masami Matsui