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Curable silicone-based composition comprising polycyclic hydrocarbon skeleton containing component

A technology of composition and polycyclic hydrocarbons, applied in coatings, plastic/resin/wax insulators, organic insulators, etc., can solve problems such as poor gas barrier properties, discoloration of silver electrodes, impossible slicing, etc., to prevent discoloration of electrodes , good gas barrier effect

Inactive Publication Date: 2012-05-02
SHIN ETSU CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cured product obtained by thermally curing the composition has poor gas barrier properties, which may cause discoloration of the silver electrode
In addition, there is a problem associated with the composition that the cured product obtained by coating and curing the composition causes curling of the substrate, making accurate slicing impossible.

Method used

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  • Curable silicone-based composition comprising polycyclic hydrocarbon skeleton containing component
  • Curable silicone-based composition comprising polycyclic hydrocarbon skeleton containing component
  • Curable silicone-based composition comprising polycyclic hydrocarbon skeleton containing component

Examples

Experimental program
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Effect test

preparation example Construction

[0051]

[0052] The component (A) of the composition of the present invention can be produced as an addition reaction product containing no SiH group by making 1 mole of the above-mentioned group containing two SiH groups per molecule in the presence of a hydrosilylation reaction catalyst. (A) and an excess equivalent of more than 1 mole but not more than 10 moles, preferably more than 1 mole but not more than 5 moles of the above-mentioned component containing two addition-reactive carbon-carbon double bonds per molecule ( b) Obtained by addition reaction.

[0053] The above-mentioned hydrosilylation reaction catalyst can adopt any conventionally used materials. Suitable examples include platinum-based catalysts such as carbon powder-supported metallic platinum, platinum black, platinum (IV) chloride, chloroplatinic acid, reaction products of chloroplatinic acid and monohydric alcohols, complexes of chloroplatinic acid and olefins, and Platinum diacetoacetate; and other platinum...

Embodiment 1

[0127] (A) The reaction product obtained in Synthesis Example 1: 40 parts by mass,

[0128] (B) Me 3 SiO(MeHSiO) 3 (Ph 2 SiO) 2 SiMe 3 : 52 parts by mass,

[0129] (C) 1-(2-Trimethoxysilylethyl)-3-(3-glycidoxypropyl)-1,3,5,7-tetramethylcyclotetrasiloxane: 8 Mass parts,

[0130] The molar ratio of SiH / carbon-carbon double bond in the above is 1.03,

[0131] (D) Platinum-vinylsiloxane complex: 20 ppm, in terms of platinum metal atoms relative to the total mass of the composition, and

[0132] 1-ethynyl cyclohexanol: 0.03 parts by mass, the above-mentioned substances are uniformly mixed together to form a composition.

Embodiment 2

[0134] (A) The reaction product obtained in Synthesis Example 1: 56 parts by mass,

[0135] (B) Me 3 SiO(MeHSiO) 4 (Ph 2 SiO) 2 SiMe 3 : 36 parts by mass,

[0136] (C) 1-(2-Trimethoxysilylethyl)-3-(3-glycidoxypropyl)-1,3,5,7-tetramethylcyclotetrasiloxane: 8 Mass parts,

[0137] The molar ratio of SiH / carbon-carbon double bond in the above is 1.04,

[0138] (D) Platinum-vinylsiloxane complex: 20 ppm, in terms of platinum metal atoms relative to the total mass of the composition, and

[0139] 1-ethynyl cyclohexanol: 0.03 parts by mass, the above-mentioned substances are uniformly mixed together to form a composition.

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Abstract

A curable silicone-based composition is provided to have gas barrier ability, to prevent the bending of a substrate even in case of sealing the substrate mounted of a plurality of LED chips, and to offer transparent hardened material with high hardness enough for dicing. A curable silicone-based composition comprises: an addition reactant having two addition reactive carbon-carbon double bonds per one molecule; linear siloxane containing phenyl group and three or more SiH bonds per one molecule; a siloxane compound having SiH bond, and an alkoxysilyl group and / or an epoxy group; a hydrosilylation catalyst. The addition reactant is an addition reactant of the reaction of a compound which has two SiH bond in chemical formula per one molecule, and a polycyclic hydrocarbon having two addition reactive carbon-carbon double bonds. In chemical formula 1, R is a substituted or non-substituted monovalent hydrocarbon radical or the alkoxy radical.

Description

Technical field [0001] The present invention relates to a curable silicone-based composition including a component containing a polycyclic hydrocarbon skeleton, which can be used as a raw material, insulating material or coating for optical devices. Background technique [0002] In recent years, the use of silicone resins in a variety of LED-related applications has been developed, including packaging materials for optical device components, especially blue light-emitting diodes (LEDs) and white light-emitting diodes (LEDs) that generate large light energy. ). In this case, multiple durability is required. [0003] Now, focus on silicone packaging materials. It has excellent light resistance and heat discoloration resistance; however, due to its gas permeability, the silver electrode may be discolored due to the penetration of corrosive gas from the outside, resulting in the possible decrease in the brightness of the LED. [0004] As a process of encapsulating LEDs, in addition to...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K5/5419C08K5/549H01B3/46C09D183/07C09D7/12
CPCC08G77/08C08G77/12C08K5/54C08L51/08C08L83/14G02B1/04
Inventor 田部井荣一
Owner SHIN ETSU CHEM IND CO LTD
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