COMPOSITION CONTAINING CYCLOALIPHATIC EPOXIDE, POLYOL OLIGOMER, CURING AGENT AND CURING ACCELERATOR

A liquid thermosetting epoxy resin composition contains a base resin in combination with a curing agent and a curing accelerator or with a curing catalyst. The base resin includes a cycloaliphatic epoxy compound having at least one alicyclic skeleton and two or more epoxy groups per molecule, and a...

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Bibliographic Details
Main Authors TAKAI HIDEYUKI, HIRAKAWA HIROYUKI
Format Patent
LanguageEnglish
Published 27.01.2011
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
SEMICONDUCTOR DEVICES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A liquid thermosetting epoxy resin composition contains a base resin in combination with a curing agent and a curing accelerator or with a curing catalyst. The base resin includes a cycloaliphatic epoxy compound having at least one alicyclic skeleton and two or more epoxy groups per molecule, and a polyol oligomer having two or more terminal hydroxyl groups. An optical semiconductor device includes an optical semiconductor element sealed by using the liquid thermosetting epoxy resin composition. The composition yields a cured resinous product which is free from curing failure, is optically homogenous, has a low elastic modulus in bending, a high bending strength, a high glass transition temperature, a high optical transparency and is useful for optical semiconductors.
Bibliography:Application Number: US20100894905