Photocurable silicone gel composition and application thereof

A photocurable, silicone gel technology, applied in adhesives, bonding methods, other chemical processes, etc., can solve problems such as unsuitable sealing applications, soft deterioration, and reduced sealing performance, achieving excellent productivity, stable sealing performance, Excellent photocurability effect
CN102869727AActive Publication Date: 2013-01-09THREEBOND FINE CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
THREEBOND FINE CHEM CO LTD
Publication Date
2013-01-09

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Abstract

Disclosed is a photocurable silicone gel composition formed from 100 parts by mass of an organopolysiloxane (A) having at least one or more of a group shown by general formula (1), a mercaptoalkyl group-containing organopolysiloxane (B) in parts by mass such that the number of moles of the mercaptoalkyl group forms 0.01 - 1.0 moles per mole of the group for (A) shown in general formula (1), 0.01 - 20 parts by mass of a photopolymerization initiator (C) per 100 parts by mass of component (A), and 0.001 - 10 parts by mass of a hindered amine (D) compound having a group shown by general formula (2) per 100 parts by mass of component (A). (In general formula (1) R1 - R2 indicate hydrogen or C1-20 alkyl group.) (In general formula (2), R3 - R6 indicate hydrogen or a C1-20 alkyl group, and R7 indicates hydrogen or -CH2-R8 (R8 indicating hydrogen or a monovalent organic group).).
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Description

technical field

[0001] The present invention relates to a photocurable silicone gel composition curable by light irradiation and a cured product, specifically, to an excellent photocurable silicone gel composition with little change in physical properties even if it is left for a long time under high temperature and high humidity And its cured product and its application. Background technique

[0002] Due to its low elastic modulus, excellent mechanical strength, heat resistance, and cold resistance, silicone gel is widely used in adhesives, sealants, potting materials, coating materials, and optical pickup devices for various electrical and electronic components. Used in a wide range of fields such as damping materials.

[0003] As a damping material used for the above-mentioned optical pickup, a specific addition reaction-curable silicone gel as shown in Patent Document 1 has been proposed. However, there is a disadvantage of poor productivity due to the heating reaction...

Claims

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