PET (poly(ethylene terephthalate)) protection film pressure-sensitive adhesive used for manufacture process of flat panel display, and production method thereof

A flat panel display and production method technology, applied in the direction of instruments, adhesives, film/sheet-like adhesives, etc., can solve the problems of non-antistatic, insufficient stiffness, difficult to tear off, etc., and achieve high cohesion, easy peeling, low polarity effect

Inactive Publication Date: 2011-09-21
KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional protective film uses a common PP substrate, and the surface is coated with a common pressure-sensitive adhesive layer. This kind of protective film has many disadvantages: First, the stiffness is not enough, and it is not suitable for fast suction and lamination by the manipulator. ; Second, it is not antistatic, which affects the rapid suction and release of the manipulator; third, the strength is not enough to protect the 0.4mm thick glass from rotating at high speed during grinding; It is very difficult to put it down, and sometimes even damage the glass lens; fifth, it is not resistant to high temperatures of 180°C

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In terms of parts by weight, 20 parts of butyl methacrylate, 20 parts of 2-ethylhexyl acrylate, 10 parts of butyl acrylate, 10 parts of methyl methacrylate, and 10 parts of isobornyl methacrylate 5 parts, 5 parts of hydroxypropyl methacrylate, 1 part of siloxane monomer, 5 parts of fluorine-containing acrylate, 0.4 parts of trimethylolpropane triacrylate, 50 parts of ethyl acetate and dicarbonate Methyl ester is 10 parts.

[0028] First add in order in the reaction pot: butyl methacrylate, 2-ethylhexyl acrylate, butyl acrylate, methyl methacrylate, isobornyl methacrylate, hydroxypropyl acrylate, siloxane monomer , fluorinated acrylate, ethyl acetate, dimethyl carbonate.

[0029] Then stir, heat to 95°C, condense, and reflux for 10 hours. During this period, 0.4 parts of trimethylolpropane triacrylate is dropped into the reaction pot at a speed of 8 hours to realize microgel polymerization to prepare part Crosslinked pressure sensitive adhesive.

[0030] After the rea...

Embodiment 2

[0033] In parts by weight, 25 parts of butyl methacrylate, 20 parts of 2-ethylhexyl acrylate, 12 parts of butyl acrylate, 5 parts of methyl methacrylate, and isobornyl methacrylate 8 parts, 2 parts of hydroxypropyl methacrylate, 3 parts of siloxane monomer, 8 parts of fluorine-containing acrylate, 0.6 parts of trimethylolpropane triacrylate, and 50 parts of butyl acetate.

[0034] First add in order in the reaction pot: butyl methacrylate, 2-ethylhexyl acrylate, butyl acrylate, methyl methacrylate, isobornyl methacrylate, hydroxypropyl acrylate, siloxane monomer , Fluorinated acrylate, butyl acetate.

[0035] Then stir, heat to 98°C, condense, and reflux for 10 hours. During this period, 0.6 parts of trimethylolpropane triacrylate is dropped into the reaction pot at a speed of 12 hours to realize microgel polymerization to prepare part Crosslinked pressure sensitive adhesive.

[0036] After the reaction, stop heating, cool down, filter, and discharge to obtain a pressure-sen...

Embodiment 3

[0039] In parts by weight, 30 parts of butyl methacrylate, 30 parts of 2-ethylhexyl acrylate, 15 parts of butyl acrylate, 8 parts of methyl methacrylate, and 8 parts of isobornyl methacrylate 10 parts, 4 parts of hydroxypropyl methacrylate, 5 parts of siloxane monomer, 10 parts of fluorine-containing acrylate, 0.4 parts of trimethylolpropane triacrylate, 50 parts of butyl acetate and dicarbonate 10 parts of methyl ester.

[0040] First add in order in the reaction pot: butyl methacrylate, 2-ethylhexyl acrylate, butyl acrylate, methyl methacrylate, isobornyl methacrylate, hydroxypropyl acrylate, siloxane monomer , fluorinated acrylate, butyl acetate and dimethyl carbonate;

[0041] Then stir, heat to 100°C, condense, and reflux for 10 hours. During this period, 0.4 parts of trimethylolpropane triacrylate is dropped into the reaction pot at a speed of 8 hours to realize microgel polymerization to prepare part Crosslinked pressure sensitive adhesive.

[0042] After the reactio...

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Abstract

The invention discloses a PET (poly(ethylene terephthalate)) protection film pressure-sensitive adhesive used for a manufacture process of a flat panel display, and a production method thereof. The PET protection film pressure-sensitive adhesive comprises the following six components in parts by weight: 50-75 parts of an adhesive component, 12-25 parts of a rigid component, 5-15 parts of a modifying component, 0.2-1 part of an internal crosslinking agent, 5-10 parts of an external crosslinking agent and 50-60 parts of an ester solvent. The pressure-sensitive adhesive provided by the invention has the advantages of low polarity (interfacial tension of 22-24 dyne / cm) and large cohesive force, is inert, has instantaneous adhesion property on the glass material surfaces of the flat panel display, does not fall out when being vapor-plated at 180 DEG C for 60 minutes, and is easy to be peeled without residual adhesive or pollution after being vapor-plated.

Description

technical field [0001] The invention relates to a formula of a pressure-sensitive adhesive, in particular to a PET protective film pressure-sensitive adhesive for flat panel display manufacturing process and a production method thereof. Background technique [0002] Flat-panel display technology is the basic technology of the information industry, and it is also an emerging technology in the ascendant in recent years. One of the two main structures of flat-panel displays is the glass substrate made of inorganic glass. The thickness of the glass substrate is becoming thinner and thinner, and the thickness of the thinnest glass substrate is only 0.4mm. This kind of glass substrate is made by cutting large-sized glass into small glass lenses of various shapes and sizes. made and sanded smooth all around. In addition, in order to eliminate the light refraction of the glass substrate and increase its light transmittance, it is necessary to evaporate a layer of ultra-thin metal o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/10C09J133/08C09J7/02G09F9/30
Inventor 施法宽喻四海曾曙
Owner KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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