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An optical hot pressing film

A hot-pressed film, optical technology, applied in the direction of heat-activated film/sheet, pressure-sensitive film/sheet, film/sheet-like adhesive, etc. It can improve the antioxidant and photothermal stability, high photoreactivity, and good synergy effect.

Active Publication Date: 2018-03-16
NANJING HUIXIN PHOTOELECTRIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The OCA glue currently used in the market has poor reworkability and poor weather resistance
General hot melt pressure sensitive without good optical performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The present invention is an optical heat-pressing film, which includes a substrate and glue on the substrate. The glue is coated on the substrate to obtain an optical heat-pressing film. The glue includes the following parts by weight: Raw materials: 35 parts of EVA hot melt adhesive, 1 part of terpene resin, 3 parts of dicyclopentadiene resin, 3 parts of diphenolic propane epoxy resin, 9 parts of photoinitiator, 8 parts of antioxidant, cashew nut shell oil 16 parts of modified amine curing agents, 8 parts of photocurable monomers, wherein said photoinitiator comprises the mixing of aryl ferrocene salt photoinitiator, photoinitiator 2959, wherein said antioxidant is antioxidant 1010, anti-oxidant A mixture of oxygen agent V76-P, wherein the photocurable monomer is butyl vinyl ether.

Embodiment 2

[0017] The present invention is an optical heat-pressing film, which includes a base material and glue on the base material. The optical heat-pressing film is obtained after the glue is coated on the base material. The glue includes the following raw materials in parts by weight: 45 parts of EVA hot melt adhesive, 5 parts of terpene resin, 1 part of rosin resin, 6 parts of dicyclopentadiene resin, 4 parts of diphenolic propane epoxy resin, 10 parts of photoinitiator, 7 parts of antioxidant, cashew nuts 20 parts of shell oil modified amine curing agent, 9 parts of photocurable monomer, wherein said photoinitiator includes aryl ferrocene salt photoinitiator, triaryl silicone ether, photoinitiator 2959, bisbenzoyl phenyl oxide One or two or three or four of phosphines, wherein the antioxidant is a mixture of tris(2,4-di-tert-butylphenyl) phosphite and antioxidant 300, wherein the light The curing monomers are dipropylene glycol diacrylate or propoxylated (3) tripropylene glycerid...

Embodiment 3

[0019] The present invention is an optical heat-pressing film, comprising a base material and glue on the base material, the glue is coated on the base material to obtain an optical heat-pressing film, and the glue includes the following parts by weight: Raw materials: 50 parts of EVA hot melt adhesive, 6 parts of terpene resin, 7 parts of dicyclopentadiene resin, 1 part of isophthalic unsaturated polyester resin, 3 parts of diphenolic propane epoxy resin, 15 parts of photoinitiator , 3 parts of antioxidant, 15 parts of cashew nut shell oil modified amine curing agent, 8 parts of photocuring monomer, wherein said photoinitiator comprises aryl ferrocene salt photoinitiator, triaryl siloxane, photoinitiator 2959 , one or two or three or four of bisbenzoylphenylphosphine oxides, wherein the antioxidant is tris(2,4-di-tert-butylphenyl)phosphite, antioxidant 1010. Antioxidant V76-P, two or three or four of antioxidant 300, wherein the photocurable monomer is dipropylene glycol diac...

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PUM

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Abstract

The invention discloses an optical hot-pressing film. The optical hot-pressing film comprises a base material and glue which is positioned on the base material; the optical hot-pressing film is obtained by coating the base material with the glue; the glue comprises the following raw materials in parts by weight: 31 to 52 parts of EVA hot-melt adhesive, 1 to 6 parts of terpene resin, 0 to 6 parts of rosin resin, 2 to 9 parts of dicyclopentadiene resin, 0 to 3 parts of isophthalic unsaturated polyester resin, 3 to 6 parts of diphenyl propane epoxy resin, 9 to 16 parts of a photoinitiator, 2 to 8 parts of an antioxidant, 12 to 26 parts of cashew nut shell oil-modified amine hardener, and 8 to 12 parts of optical curing monomers. According to the optical hot-pressing film, the production cost of an optical adhesive is greatly reduced; the optical hot-pressing film has excellent reworking property; moreover, a hot-melt pressure-sensitive adhesive has excellent optical performance.

Description

technical field [0001] The invention relates to an optical heat-pressing film, which is used for bonding optical components, in particular to bonding liquid crystal screens. Background technique [0002] The bonding of optical components not only requires the glue to have good light transmission, but also requires uniform light and cannot cause defects such as poor weather resistance, viscosity, and aging performance of the optical film due to temperature, humidity, and other external factors. The OCA glue currently used on the market has poor reworkability and poor weather resistance. General hot melt pressure sensitive and no good optical properties. Contents of the invention [0003] In order to solve the above problems, the present invention provides an OHF optical hot-pressing film, which has special properties of hot-melt pressure-sensitive adhesives by modifying the EVA hot-melt adhesive and adding other auxiliary reagents. [0004] In order to achieve the above o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/30C09J4/06C09J11/06C09J123/08C09J145/00C09J167/06
CPCC08L2201/08C08L2203/16C08L2205/025C08L2205/035C09J4/06C09J7/35C09J7/38C09J7/381C09J11/06C09J123/0853C09J2203/318C09J2301/302C09J2301/304C09J2423/04C08L45/00C08L67/06C08L93/04C08K5/526C08K5/1345
Inventor 夏建明张欢王小莉
Owner NANJING HUIXIN PHOTOELECTRIC MATERIAL
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