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Curable resin composition

A technology of curable resin and composition, which is applied in the direction of coating, etc., and can solve the problem of insufficient grindability of the cured product

Active Publication Date: 2015-10-21
ADEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, as a method of forming a reflective coating portion, a method of coating a curable resin composition on a substrate and grinding and removing an unnecessary portion after curing has been proposed (for example, refer to Patent Document 7), but conventionally known The grindability of the cured product of the silicone resin system is insufficient, and there is a demand for a curable resin composition that can obtain a cured product with good grindability

Method used

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  • Curable resin composition
  • Curable resin composition
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Examples

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Embodiment

[0092] Hereinafter, although an Example demonstrates this invention further, this invention is not limited to these Examples. In addition, unless otherwise specified, "part" and "%" in an Example are based on a mass basis.

Synthetic example 1

[0093] [Synthesis Example 1] Component (A): Synthesis of Compound A1

[0094] In a reaction vessel equipped with a nitrogen introduction tube, a thermometer, a cooling tube and a stirring device, 48.0 g (0.20 mol) of 2,4,6,8-tetramethylcyclotetrasiloxane, 26.0 g (0.20 mol) of divinylbenzene mol), 0.002 g of a platinum-divinyltetramethyldisiloxane complex as a catalyst, and 150 g of toluene as a solvent were reacted at 105° C. for 2 hours. Thereafter, the solvent was distilled off under reduced pressure at 70° C. to obtain Compound A1. The weight average molecular weight determined by GPC analysis of compound A1 was 10,000, and the content of SiH groups per 1 g determined by H-NMR analysis was 5.40 mmol.

Synthetic example 2

[0095] [Synthesis Example 2] Component (A): Synthesis of Compound A2

[0096] Except having changed the compounding quantity of 1, 4- divinylbenzene into 18.2 g (0.14 mol) from 26.0 g (0.20 mol), it carried out similarly to the synthesis example 1, and obtained the compound A2. The weight average molecular weight determined by GPC analysis of compound A2 was 14000, and the content of SiH groups per 1 g determined by H-NMR analysis was 7.85 mmol.

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Abstract

The present invention provides a curable resin composition which can provide a white cured article having good grindability and high heat resistance and light resistance. Specifically, the present invention provides a curable resin composition comprising: a component (A) which is a siloxane compound in which a group represented by general formula (1) and / or a group represented by general formula (2) is linked through a residue produced by removing a vinyl group from a compound represented by any one of formulae (3) to (7); a component (B) which is a linear siloxane compound represented by general formula (8); a component (C) which is a thermal radical generator; and a component (D) which is an inorganic filler. The specific definitions for the general formulae are as mentioned in the description.

Description

technical field [0001] The present invention relates to a polysiloxane-based curable resin composition, and relates to a curable resin composition capable of obtaining a cured product having high heat and light resistance and good grindability. Background technique [0002] A reflective coating material for light-emitting diode substrates, a reflective coating material for a backlight unit of a liquid crystal display device, a reflective coating material for a solar cell concentrator, or a roof, top plate, or outer wall of a building is sought Reflective coating materials used in lighting equipment, reflective coating materials used in lighting fixtures, etc., which are heat-resistant and light-resistant, that is, reflective materials that maintain high light reflectance even in environments exposed to high temperature or high-energy light. Coating material. [0003] As curable resin compositions for reflective coating materials, epoxy resins filled with white pigments are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08K3/00C08K5/14C08L83/05
CPCC08K3/00C08G77/12C08G77/20C08G77/38C08K5/0025C08K5/14C09D183/04C08L83/00C08K3/013C08K5/01
Inventor 斋藤雅子神林孝明
Owner ADEKA CORP
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