Adhesive film and optical member comprising same

A methacrylic ester technology, applied in the direction of optical components, optics, film/sheet adhesive, etc., can solve the problems of adverse effects on the properties of the protective film, and achieve excellent residual properties, good compatibility, and high curing speed effect

Pending Publication Date: 2020-05-01
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, excess antistatic agent can adversely affect the properties of the protective film

Method used

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  • Adhesive film and optical member comprising same
  • Adhesive film and optical member comprising same
  • Adhesive film and optical member comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0211] Next, the present invention will be explained in detail with reference to some examples. It should be understood, however, that these examples are provided for illustration only and should not be construed as limiting the invention in any way.

example 1

[0213] 100 parts by weight of the monomer mixture listed in Table 1 and 0.005 parts by weight of Yanjiagu 651 as a starter were thoroughly mixed in the reactor. After displacing dissolved oxygen in the reactor with nitrogen, the monomer mixture was partially polymerized by irradiating ultraviolet light for several minutes using a low-pressure mercury lamp, thereby preparing a viscous liquid with a viscosity of 2,000 cps at 25°C. The viscous liquid may comprise a copolymer of an acrylic monomer and a silicon-containing monomer, a mixture of the acrylic monomer and the silicon-containing monomer unpolymerized.

[0214] Added 0.5 parts by weight of initiator Yanjiagu 651 to the viscous liquid and mixed it, thereby preparing the adhesive composition. After removing air bubbles from the adhesive composition, the adhesive composition was coated on one surface of a PET (polyethylene terephthalate) base film (thickness: 75 μm), and the PET (polyethylene terephthalate) Ethylene glycol...

example 2 to example 9

[0216] A PET film / adhesive film / PET film adhesive sheet was prepared in the same manner as in Example 1, except that the components of each adhesive composition were changed to those listed in Table 1 (unit parts by weight).

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Abstract

Provided are an adhesive film and an optical member comprising same, the adhesive film comprising at least two types of (meth)acrylic monomers for a (meth)acrylic prepolymer, and (meth)acrylate containing silicon, wherein the release force of the adhesive film with respect to a polyimide film is approximately 0.5 gf / in to 5 gf / in.

Description

technical field [0001] The present invention relates to an adhesive film and an optical member including the same. Background technique [0002] Recently, there has been increasing interest in wearable or foldable devices. Attempts are underway to replace the typical glass substrate of OLEDs with polyimide films. [0003] Polyimide films are thinner and more flexible than glass substrates. Polyimide film requires a protective film to protect the polyimide film during the manufacturing process of optical displays. A polyimide film has completely different properties from a glass substrate in terms of thickness, surface properties, strength, and the like. Therefore, protective films generally used to protect glass substrates are limited when applied to polyimide films. The protective film of the polyimide film needs to be attached to the polyimide film and protect the polyimide film. However, if high peel strength is required to separate the protective film from the polyi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J4/00C09J183/04C09J11/06C09J7/20G02B5/20
CPCC09J2433/00C09J7/10C09J7/385C09J2203/318C08G77/04C08K5/10C09J183/06C08G77/20C08G77/38C08L83/06G02B1/14C08F220/1808C08F230/08C09J143/04C08F2/50C08L83/00C08K5/0075C08F222/102C08F220/20C08F220/1811C09J4/00C08G77/442C09J7/255C09J7/401C08F220/18C08K5/07G02B1/10C09J2301/408C09J2467/005C09J2467/006
Inventor 金志浩金泰志李正孝金一鎭申东明金度泳金永勋黄伍显
Owner SAMSUNG SDI CO LTD
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