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Pressure-sensitive adhesive composition, protective film, polarizer and liquid crystal display comprising the same

A technology of pressure-sensitive adhesives and compositions, applied in the direction of adhesive types, ester copolymer adhesives, adhesives, etc., can solve the problems of reducing low-speed peel strength, achieve excellent antistatic performance, and prevent static electricity , good processability and durability

Active Publication Date: 2010-12-08
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method also has the disadvantage of reducing the low-speed peel strength due to a large amount of additives

Method used

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  • Pressure-sensitive adhesive composition, protective film, polarizer and liquid crystal display comprising the same
  • Pressure-sensitive adhesive composition, protective film, polarizer and liquid crystal display comprising the same
  • Pressure-sensitive adhesive composition, protective film, polarizer and liquid crystal display comprising the same

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Embodiment

[0092] Although the embodiment of the present invention has been described in detail, it is obvious to those skilled in the art that various changes and improvements can be made within the scope of the technical idea of ​​the present invention, and these changes and improvements are included in the appended claims .

[0093] Preferred embodiments of the present invention will be provided in the following examples to help the understanding of the present invention, but these embodiments are only for the purpose of illustration, not limiting the scope of the present invention.

preparation Embodiment 1

[0095] In the 1L reactor that is equipped with cooling system, add by the 2-ethylhexyl acrylate (EHA) of 90 parts by weight, the lauryl acrylate of 5 parts by weight, the methoxy triethylene glycol acrylate of 2 parts by weight and A monomer mixture composed of 3 parts by weight of 2-hydroxyethyl acrylate (HEA). Then, 100 parts by weight of ethyl acetate (EAc) was added thereto as a solvent. To remove oxygen, purge with nitrogen for 60 minutes. Then, the temperature was kept at 70° C., 0.1 parts by weight of azobis(2-methylbutyronitrile) (Wako, V-59) was added thereto as an initiator, followed by reaction for 6 hours. After the reaction, the resulting product was diluted with ethyl acetate (EAc) to prepare an acrylic copolymer having a solid content of 44% by weight, a weight average molecular weight of 580,000, and a molecular weight distribution of 7.0.

preparation Embodiment 2-7

[0097] An acrylic copolymer was prepared in the same manner as described in Preparation Example 1 except using the components and composition shown in Table 1.

[0098] Table 1

[0099]

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Abstract

The present invention relates to an acrylic pressure-sensitive adhesive composition, and more particularly, to an acrylic pressure-sensitive adhesive composition capable of showing an excellent anti-static performance, and solving a transferring problem of additives and a problem concerning a balance of low-rate and high-rate peel strength, by comprising a) an acrylic copolymer including a monomer having a functional group capable of chelating with a metal salt, and a hydrophobic monomer and b) a metal salt.

Description

technical field [0001] The present invention relates to an acrylic pressure-sensitive adhesive composition, and more particularly, the present invention relates to an acrylic pressure-sensitive adhesive composition obtained by comprising a) a monomer having a functional group capable of chelating a metal salt. acrylic copolymers of monomers and hydrophobic monomers; and b) metal salts that exhibit excellent antistatic properties and address migration of additives and issues related to the balance between low and high speed peel strength. Background technique [0002] Generally, a protective film is usually used to protect the surface of a metal product or a plastic sheet. As an adhesive for a protective film, an acrylic adhesive is widely used due to its weather resistance and transparency. And as an acrylic adhesive, an adhesive in which a copolymer containing an alkyl (meth)acrylate and a crosslinkable monomer is crosslinked with a polyisocyanate compound, a melamine comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08
CPCC09D133/06C08F2220/1883C09J133/00C08K5/43C08F2220/286G02F2202/28C08F2220/281C09J2201/606C08K5/0025C08F2220/1825C08F220/18C09J133/14C08F220/1804C08F220/1808C08F220/1811C08F220/1812C08F220/281C08F220/286C09J2301/302C09K2323/035C09K2323/05C09K2323/057C09K2323/059Y10T428/2848Y10T428/2857C09J133/08B32B2457/202G02B5/30
Inventor 金鲁马李在官李安娜
Owner LG CHEM LTD
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