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Pressure sensitive adhesive for transporting flexible substrate

A technology for flexible substrates and adhesives, applied in the direction of film/sheet adhesives, adhesives, passive exercise equipment, etc., can solve the problem of reduced adhesive bonding strength, difficult to transfer substrates, and inability to adhesive Eliminate the problems of reusing the support, etc., and achieve the effect of tight adhesion and tight transparency

Active Publication Date: 2009-02-18
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since flexible substrates, especially plastic substrates, which will be used instead of glass substrates to produce liquid crystal display (LCD) panels or organic light emitting display (OLED) panels are flexible, there is a problem that it is difficult Send the substrate
However, as described above, there is a problem that the heat-peelable adhesive cannot be used in a method of producing an LCD panel or an OLED panel at a high temperature due to foaming at a temperature of 100° C. or higher
Although it is described in this patent document that silicone rubber having better heat resistance than that of acrylic resin is used as an adhesive for sticking, and the jig with the adhesive for sticking can be used several times, But its problem is that when the glued adhesive is used several times, since foreign matter adheres to the surface of the glued adhesive, the adhesive strength of the glued adhesive decreases, so it cannot be easily Adhesive removal and support reuse

Method used

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  • Pressure sensitive adhesive for transporting flexible substrate
  • Pressure sensitive adhesive for transporting flexible substrate
  • Pressure sensitive adhesive for transporting flexible substrate

Examples

Experimental program
Comparison scheme
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specific Embodiment approach

[0067] Hereinafter, a method of transferring a flexible substrate using the above adhesive composition will be described in detail with reference to the accompanying drawings.

[0068] First, a method of transferring a flexible substrate according to a first embodiment of the present invention will be described in detail.

[0069] Figure 1~4 is a sectional view showing a method of transferring a flexible substrate according to a first embodiment of the present invention.

[0070] refer to figure 1 , place a predetermined amount of the adhesive composition 202 on the flexible substrate 100 , and then use the coating machine 110 to coat the adhesive composition 202 on the flexible substrate 100 at a constant speed. A coater known in the related art such as a wire bar coater, a roll coater, a reverse coater, a gravure coater, or an air knife coater can be used as the coater 110 described above.

[0071] In addition, such as polyester, polytetrafluoroethylene, polyimide, polyp...

Embodiment

[0098]

[0099] An alkenyl-containing polydimethylsiloxane, wherein a vinyl block is used at the end of the molecular chain of the polydimethylsiloxane, and the polydimethylsiloxane contains 0.15 mol % of methylethylene base siloxane units, and the polydimethylsiloxane is dissolved in toluene to have a viscosity of 2200 mPas when it has a solids content of 30%; 60% contains Me 3 SiO 1 / 2 Cell and SiO 2 Unit (Me 3 SiO 1 / 2 Unit / SiO 2 Units = 0.85) in toluene solution of polyorganosiloxane; and Me used as crosslinking agent 3 SiO-[MeHSiO] 40 SiMe 3 mix. Next, toluene, gamma-glycidoxypropyltrimethoxysilane used as a silane coupling agent and chloroplatinic acid based on platinum group elements were added to 100 parts by weight of the composition to finally prepare a solid content of 30% silicone adhesive composition. In Table 1 the components and contents of the prepared compositions are given.

[0100] The prepared composition was diluted to an appropriate concentratio...

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Abstract

Disclosed herein is a silicon adhesive composition for transporting a flexible substrate. The composition includes (A) 42 to 70 parts by weight of a polydiorganosiloxane containing an alkenyl group, (B) 55 to 28 parts by weight of a polyorganosiloxane copolymer including R<1> SiO2 units and SiO2 units, wherein R<1> is a hydroxy group or a monovalent hydrocarbon group of 1 to 12 carbon atoms, (C) a polyorganosiloxane containing an SiH group, wherein the molar ratio of the SiH group of component (C) to the alkenyl group of component (A) is from 0.5 to 20, and (D) a platinum group catalytic compound, wherein the weight ratio of a metal component of the compound to the sum of components (A) and (B) is from 1 to 5000 ppm by weight.

Description

technical field [0001] The present invention relates to an adhesive for transferring a flexible substrate, which can be used in a method of producing a display using a flexible substrate such as a plastic substrate, and a method for transferring a flexible substrate using the adhesive. Background technique [0002] Currently, research on flexible base materials, especially plastic substrates, has been actively conducted in accordance with the trend toward using light components and thin components in the fields of display and electronic industries. When the substrate is made of plastic, which is a light, thin, and flexible material, the substrate has advantages such as high durability, low cost, and a simple manufacturing method. With the development of the display industry, it is expected that a display prepared using a flexible substrate including the plastic substrate can be realized as a paper-like display through a flexible display or a rollable display. [0003] Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04
CPCH05K2201/015C09J7/0292H05K3/386H05K2201/0158C09J183/04C09J2483/00H05K1/0393H05K2201/0154H05K3/007C08L83/00Y10T428/24355Y10T428/2839Y10T428/24942B60N3/063G05G1/60A61H1/0266B62D25/20
Inventor 全相起高东汉张锡基
Owner LG CHEM LTD
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