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Acrylic pressure sensitive adhesive composition

A technology for acrylic adhesives and compositions, applied in the direction of acid copolymer adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problems of deterioration of adhesion and durability reliability, and achieve excellent Durable reliability, no whitening effect

Active Publication Date: 2008-08-13
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the present inventors' findings, if a hydrophilic additive comprising ethylene oxide is added in a desired amount to reduce static electricity generation by absorbing moisture in the air, the physical properties of the adhesive, especially the adhesive Combined force and durability reliability will deteriorate significantly

Method used

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  • Acrylic pressure sensitive adhesive composition
  • Acrylic pressure sensitive adhesive composition
  • Acrylic pressure sensitive adhesive composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065]

[0066] Into a 1L reactor equipped with a nitrogen reflux device and a temperature-controlled cooler, add 98.3 parts by weight of n-butyl acrylate (BA), 0.5 parts by weight of acrylic acid (AA) and 1.2 parts by weight of hydroxyethyl methacrylate (2-HEMA ) and 100 parts by weight of ethyl acetate (EAc) as a solvent. The reactor was purged with nitrogen for 1 hour to remove oxygen and maintained at 62°C. After homogenizing the mixture, 0.03 parts by weight of azobisisobutyronitrile (AIBN) diluted at a concentration of 50% in ethyl acetate was added as a reaction initiator. The reaction was carried out for 8 hours to obtain an acrylic acid copolymer.

[0067]

[0068] Lithium bis(trifluoromethanesulfonyl)imide and acetamide were mixed at a weight ratio of 1:1 at room temperature and left to stand for 12 hours to obtain a metal eutectic salt.

[0069]

[0070] To 100 parts by weight of the above-prepared acrylic copolymer, 0.5 parts by weight of trimethylolpropane...

Embodiment 2～15

[0074] The copolymerization was carried out under the conditions given in Table 1 and Example 1 below. Use urea in addition to acetamide and lithium bis(pentafluoroethanesulfonyl)imide, or use potassium bis(trifluoromethanesulfonyl)imide instead of lithium bis(trifluoromethanesulfonyl)imide to prepare room temperature low-eutectic molten salt. Preparation, mixing and lamination of the acrylic copolymer were carried out in a similar manner to Example 1. The durability reliability, surface resistance and haze measurement results are shown in Table 2.

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Abstract

The present invention relates to an acrylic adhesive composition, and more particularly, to an acrylic adhesive composition comprising a room temperature eutectic salt prepared by mixing a metal salt represented by the formula (1), composed of an anion having a perfluoroalkane group, which is a conjugate base of a super acid, and an alkali metal cation with a compound having an amide group represented by the formula (2), which is used to increase the degree of dissociation of the metal salt. The acrylic adhesive composition of the present invention has superior endurance reliability, antistaticity and adhesive force without whitening under high temperature and humidity.

Description

technical field [0001] The present invention relates to an acrylic adhesive composition, and more particularly, to an acrylic adhesive composition comprising a room temperature eutectic salt represented by the following formula (1): Salts prepared by mixing a compound having an amide group represented by the following formula (2), the metal salt represented by the following formula (1) consisting of an anion having a perfluoroalkyl group as a conjugate base of a superacid and an alkali metal cation Composition, the compound with amide group represented by the following formula (2) is used to enhance the dissociation degree of the metal salt: [0002] chemical formula 1 [0003] m + x - (YOm R f ) n [0004] where M is an alkali metal cation and R f is a perfluoroalkyl group having 1 to 4 carbon atoms (if Y is carbon, m=1. if Y is sulfur, m=2. if X is oxygen, n=1. if X is nitrogen, n=2. If X is carbon, n=3.); [0005] chemical formula 2 [0006] [0007] Among them...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08
CPCC09J133/02C08K5/0008C08L33/02C08L2666/28C09J133/08
Inventor 全相起高东汉张锡基吴宰丞李秉培
Owner LG CHEM LTD
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