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Coating compositions having a superior high adhesive strength on cycloolefin polymer films and cycloolefin polymer films comprising coating layer manufactured by using the same

A technology of cycloolefin film and composition, which is applied in the field of coating composition of cycloolefin film, can solve the problems of reduced adhesive strength, reduced affinity between optical characteristic components, reduced product yield, etc., and achieves excellent adhesion combined strength effect

Active Publication Date: 2012-08-15
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in general cycloolefin resins, since norbornene having no polarizing group or very weak polarity is used as a monomer, there is a problem in that polarizing polyvinyl alcohol having very high polarity film, the interlayer has a lower bond strength than is the case with other known optical films
In addition, there is a problem that, for a paint film, when the film is subjected to a surface coating treatment process to provide additional functions, the adhesive strength is significantly reduced
However, in these methods, there is a problem in that the optical characteristics, the affinity between components, and the strength of the optical film decrease
However, in these methods, there are problems in that, due to the addition of the surface treatment process, the cost increases and the productivity decreases; Yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] At room temperature, 17 parts by weight of ethylene / vinyl acetate copolymer (weight average molecular weight: 500,000) used as olefin resin, 13 parts by weight of 1-hydroxycyclohexylbenzophenone used as photoinitiator, 0.9 parts by weight Parts of wetting agent (Tego 270, produced by Tego Company) used as surfactant and the cyclohexane of 217 parts by weight and the methyl ethyl ketone of 87 parts by weight and the acrylate adhesive of 100 parts by weight as solvent Resin (including 22 parts by weight of dipentaerythritol hexaacrylate, 13 parts by weight of hexanediol diacrylate and 65 parts by weight of urethane-modified acrylate oligomer (weight average molecular weight: 800, 6 acrylic acid Ester functional group, produced by SK Cytec Co., Ltd.)) mixed to prepare the hard coating solution composition.

Embodiment 2

[0053] 22 parts by weight of styrene / butadiene / styrene copolymer (LG Chemical Co., Ltd., LG604) used as olefin resin, 2.2 parts by weight of silica (OK607, OK607, Degussa Co., Ltd.), 13 parts by weight of 1-hydroxycyclohexyl benzophenone used as a photoinitiator, 0.9 parts by weight of a wetting agent used as a surfactant (Tego 270, produced by Tego Company) and 217 parts by weight of toluene and 87 parts by weight of methyl isobutyl ketone and 100 parts by weight of acrylate binder resin (comprising 22 parts by weight of dipentaerythritol hexaacrylate, 13 parts by weight of β-carboxyethyl acrylate and 65 parts by weight of urethane-modified acrylate oligomer (weight average molecular weight: 800, 6 acrylate functional groups, produced by SK Cytec Co., Ltd.)) was mixed to prepare the antiglare coating solution composition.

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Abstract

The present invention relates to a coating composition of a cycloolefin film that includes 100 parts by weight of an acrylate binder resin, 5 to 50 parts by weight of an olefin resin, 2 to 20 parts byweight of a photoinitiator, and 80 to 400 parts by weight of a solvent. The coating composition of the cycloolefin film may further include 1 to 20 parts by weight of fine particles having an averageparticle size in the range of 0.5 to 5 D. The coating composition may be used as a hard coating composition and a dazzling prevention coating composition in respects to the cycloolefin film. The coating composition of the cycloolefin film according to the present invention can provide a coating layer which has excellent adhesion strength in respects to the cycloolefin film while desirable opticalproperties such as a dazzling prevention property and a reflection prevention property and desirable mechanical properties such as scratch resistance and abrasion resistance which are capable of being obtained in a known technology are maintained by applying an olefin resin to the coating composition even though a cycloolefin film is not subjected to a hydrophilic surface treatment process such as corona, plasma and the like.

Description

technical field [0001] The present invention relates to a coating composition having excellent adhesive strength to cycloolefin films. More particularly, the present invention relates to a coating composition for a cycloolefin film capable of providing a coating having excellent adhesive strength to a cycloolefin film, and at the same time, even an optical film made of a cycloolefin polymer or copolymer resin (hereinafter, referred to as "cycloolefin film") does not undergo a hydrophilic surface treatment process such as corona, plasma, etc., and still maintains satisfactory optical properties (such as anti-glare properties and anti-glare properties) that can be obtained by known techniques. Reflective properties) and satisfactory mechanical properties (such as scratch resistance and abrasion resistance). The coating composition according to the invention can be used as a hard coating composition or an antiglare coating composition. This application claims priority from Kore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00B32B27/30B32B27/32C08J7/043C08J7/046C09D4/06C09D123/00C09D153/00
CPCC08J2433/00C08J7/047C08J2365/00C08J7/0427C08J7/043C08J7/046C09D167/00
Inventor 尹汉植张影来沈载勋丘在必权冻铸
Owner LG CHEM LTD
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