Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet

A pressure-sensitive adhesive, pressure-sensitive adhesive sheet technology, applied in the directions of adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problems of warping or twisting of laminates, and achieve anti-foaming peeling performance and high temperature stress relaxation performance, high anti-foaming peeling performance effect
CN102757752AInactive Publication Date: 2012-10-31NITTO DENKO CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NITTO DENKO CORP
Publication Date
2012-10-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a pressure-sensitive adhesive composition excellent in the anti-foaming release property and high-temperature stress relaxation property, and a pressure-sensitive adhesive layer composed of the pressure-sensitive adhesive composition. The invention relates to a pressure-sensitive adhesive composition including an acrylic polymer which is formed from a monomer component including methyl methacrylate and has a glass transition temperature (Tg) of -40 DEG C or more, wherein the pressure-sensitive adhesive composition has a shear storage elastic modulus at 85 DEG C as measured by a dynamic viscoelasticity measurement of from 110 4 to 310 5 Pa.
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Description

technical field

[0001] The present invention relates to a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet. More specifically, the present invention relates to a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet each having excellent anti-foaming properties and excellent high-temperature stress relaxation properties. Background technique

[0002] Recently, a display device such as a liquid crystal display (LCD) and an input device such as a touch panel used in combination with the display device have been widely used in various fields. In the manufacture of such display devices or input devices, etc., pressure-sensitive adhesive sheets (pressure-sensitive adhesive tapes) are used for laminating optical members together. For example, in the manufacture of touch panels, transparent pressure-sensitive adhesive sheets are used (see, for example, Patent Documents 1 to 3). Among them, a pressure-sensitive adhesive shee...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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