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OCA optical adhesive easy to attach

A technology of optical glue and bonding, which is applied in the field of optical glue, and can solve problems such as difficult bonding of OCA products

Inactive Publication Date: 2020-02-21
惠州市加韵新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide an easy-to-laminate OCA optical adhesive for the technical problem that OCA products are not easy to be bonded.

Method used

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  • OCA optical adhesive easy to attach
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention provides an easy-to-laminate OCA optical adhesive, which includes the following components in parts by mass: 20 parts of hydroxypropyl methacrylate, 40 parts of glycidyl methacrylate, 6 parts of isooctyl acrylate, benzene polyacrylate 2 parts of acid ester, 1 part of hydroxybenzophenone, 1 part of phthalate, 1 part of hydroquinone, 1 part of ethyl acetate, 0.5 part of initiator, 0.2 part of sensitizer, 0.5 part of crosslinking agent 1 part, 1 part of surface modifier and 1 part of polysiloxane.

[0019] The above-mentioned easy-to-laminate OCA optical glue is made of UV semi-cured OCA by combining soft materials with strong fluidity such as isooctyl acrylate and hard materials with low fluidity such as hydroxypropyl methacrylate. Optical glue, in this way, the more fluid isooctyl acrylate will fully fill the surface of the screen, which is beneficial to eliminate the bubbles generated in the process of bonding OCA optical glue products to the screen; moreo...

Embodiment 2

[0032] The invention provides an easy-to-laminate OCA optical adhesive, which includes the following components in parts by mass: 30 parts of hydroxypropyl methacrylate, 43 parts of glycidyl methacrylate, 11 parts of isooctyl acrylate, benzene polyacrylate 3 parts of acid ester, 2 parts of hydroxybenzophenone, 2 parts of phthalate, 2 parts of hydroquinone, 2 parts of ethyl acetate, 0.62 parts of initiator, 0.3 parts of sensitizer, 0.7 parts of crosslinking agent 1.5 parts of surface modifier, 2 parts of polysiloxane and 3 parts of di-n-octyltin dilaurate.

[0033]The above-mentioned easy-to-laminate OCA optical glue is made of UV semi-cured OCA by combining soft materials with strong fluidity such as isooctyl acrylate and hard materials with low fluidity such as hydroxypropyl methacrylate. Optical glue, in this way, the more fluid isooctyl acrylate will fully fill the surface of the screen, which is beneficial to eliminate the bubbles generated in the process of bonding OCA op...

Embodiment 3

[0038] The invention provides an easy-to-laminate OCA optical adhesive, which includes the following components in parts by mass: 40 parts of hydroxypropyl methacrylate, 46 parts of glycidyl methacrylate, 18 parts of isooctyl acrylate, benzene polyacrylate 5 parts of acid ester, 3 parts of hydroxybenzophenone, 4 parts of phthalate, 4 parts of hydroquinone, 4 parts of ethyl acetate, 0.9 part of initiator, 0.4 part of sensitizer, 0.8 part of crosslinking agent 2.5 parts of surface modifier, 4 parts of polysiloxane and 5 parts of di-n-octyltin dilaurate.

[0039] The above-mentioned easy-to-laminate OCA optical glue is made of UV semi-cured OCA by combining soft materials with strong fluidity such as isooctyl acrylate and hard materials with low fluidity such as hydroxypropyl methacrylate. Optical glue, in this way, the more fluid isooctyl acrylate will fully fill the surface of the screen, which is beneficial to eliminate the bubbles generated in the process of bonding OCA optic...

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Abstract

The invention discloses an OCA optical adhesive easy to attach. The OCA optical adhesive comprises the following components in parts by mass: 20 parts to 45 parts of hydroxypropyl methacrylate, 40 parts to 50 parts of glycidyl methacrylate, 6 parts to 20 parts of 2-ethylhexyl acrylate, 2 parts-6 parts of benzene polyacid ester, 1 part-4 parts of hydroxybenzophenone, 1 part-5 parts of phthalic acidester, 1 part-5 parts of hydroquinone, 1 part-5 parts of ethyl acetate, 0.5 part-1 part of an initiator, 0.2 part-0.5 part of polyethylene glycol dimethacrylate, 0.2 part-0.5 part of a sensitizer, 0.5 part-1 part of a crosslinking agent, 1 part-3 parts of a surface modifier and 1 part-5 parts of polysiloxane. According to the OCA optical adhesive easy to attach, the surface of a screen is comprehensively filled with 2-ethylhexyl acrylate, and bubbles generated when an OCA optical adhesive product is attached are eliminated; moreover, by adding the surface modifier and polysiloxane, the surface tension of the OCA optical adhesive is reduced, air between the OCA optical adhesive and the screen can be extruded during OCA optical adhesive pasting, the bubble amount is reduced, and the productquality is improved.

Description

technical field [0001] The invention relates to the technical field of optical glue, in particular to an easy-to-laminate OCA optical glue. Background technique [0002] OCA optical adhesive is one of the important raw materials for touch screens. It has the characteristics of high light transmittance, good bonding strength, can be cured at room temperature or medium temperature, and has small curing shrinkage. Therefore, it is often used as a special adhesive for bonding transparent optical components. , such as electronic paper, transparent device bonding, optical device assembly, display assembly and bonding of various touch screens. The use of OCA optical glue can reduce the light loss of liquid crystal display, enhance the strength of surface connection and expand the visible area of ​​imaging equipment, thereby improving the imaging effect of electronic equipment and promoting the development of optical equipment technology. [0003] However, when the OCA film made of...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J11/06C09J11/04C09J11/08
CPCC09J4/00C09J11/04C09J11/06C09J11/08
Inventor 吴才王
Owner 惠州市加韵新材料有限公司
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