Release film for AB adhesive films

A technology of release film and adhesive film, which is applied in the direction of film/sheet adhesives, adhesives, film/sheet release liners, etc., can solve problems such as no solution provided, and achieve excellent release performance and attached The effect of high force and low release force

Pending Publication Date: 2021-11-09
JIANGSU SHUANGXING COLOR PLASTIC NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the release films in the prior art are usually release films with light release force on the low-viscosity layer, and the other three release films do not provide a unified solution in the prior art

Method used

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  • Release film for AB adhesive films
  • Release film for AB adhesive films
  • Release film for AB adhesive films

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a suitable for attaching to figure 1 The high-viscosity layer on the surface of the shown high-viscosity layer 102 has a release film with light release force, and its specific structure can be as follows figure 2 As shown, including the release film substrate 10 and the release agent layer 20 coated on the surface of the release film substrate 10, the release agent layer 20 is prepared from the following parts by weight of raw materials Dosage made from:

[0025] 60-140 parts by weight of polybutadiene polyurethane, 45-85 parts by weight of polyacrylate resin, 10-25 parts by weight of hydroxypropyl methacrylate, 25-55 parts by weight of trifluoroethyl methacrylate active Monomer diluent, the active monomer diluent of 2-methyl-2-acrylic acid behenyl ester of 20-25 parts by weight, the initiator of 1-5 parts by weight is 2-hydroxyl-2-methyl-1 -Phenyl-1-propanone.

[0026]The release agent in Example 1 is a UV-curable release agent without sil...

Embodiment 2

[0028] This embodiment provides a suitable for attaching to figure 1 The low-viscosity layer on the surface of the shown low-viscosity layer 101 has a release film with medium release force, and its specific structure can be as follows figure 2 As shown, including the release film substrate 10 and the release agent layer 20 coated on the surface of the release film substrate 10, the release agent layer 20 is prepared from the following parts by weight of raw materials Dosage made from:

[0029] 60-140 parts by weight of polybutadiene polyurethane, 45-85 parts by weight of polyacrylate resin, 10-25 parts by weight of hydroxypropyl methacrylate, 25-55 parts by weight of trifluoroethyl methacrylate active Monomer diluent, the stearyl methacrylate active monomer diluent of 20-25 weight parts, the initiator of 1-5 weight part is 2-hydroxyl-2-methyl-1-phenyl-1- acetone.

[0030] The release agent in Example 2 is a UV-curable release agent without silicone oil components. It does...

Embodiment 3

[0032] This embodiment provides a suitable for attaching to figure 1 The surface of the shown high-viscosity layer 101 has a release film with medium release force for the high-viscosity layer, and its specific structure can be as follows figure 2 As shown, including the release film substrate 10 and the release agent layer 20 coated on the surface of the release film substrate 10, the release agent layer 20 is prepared from the following parts by weight of raw materials Dosage made from:

[0033] 60-140 parts by weight of polybutadiene polyurethane, 45-85 parts by weight of polyacrylate resin, 10-25 parts by weight of hydroxypropyl methacrylate, 25-55 parts by weight of trifluoroethyl methacrylate active Monomer diluent, the dodecyl methacrylate active monomer diluent of 20-25 parts by weight, the initiator of 1-5 parts by weight is 2-hydroxyl-2-methyl-1-phenyl-1- acetone.

[0034] The release agent of Example 3 is a UV-curable release agent without silicone oil component...

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Abstract

The invention discloses a release film for AB adhesive films. The release film comprises a release film base material and a release agent layer coating the surface of the release film base material. The invention provides three release films with a unified solution suitable for AB adhesive films. Alkyl acrylates with different chain lengths are used as active monomer diluents, and the alkyl acrylates with different chain lengths are used to adjust the release force, so that the release films can be prepared by adopting an approximate content ratio and the same process, and the research and development and manufacturing costs are reduced.

Description

technical field [0001] The application relates to the field of protective films, in particular to a release film for AB adhesive films. Background technique [0002] AB glue is based on optical grade PET (polyester film), one side (side A) is coated with silica gel, and the other side (side B) is coated with OCA optical glue. It is a special double-sided adhesive for tempered glass protection. Among them, the silica gel on the A side has a low viscosity, which is easy to replace and separate, and is used to attach the protection object; the OCA optical glue on the B side is a high-viscosity layer with good adhesion, and is used to attach the protective layer. Due to its stickiness on both sides, both sides need to be coated with a release film during the production process, so as to isolate and protect each other when rolling the material. [0003] CN 110982437 A discloses a preparation method of AB adhesive film. Including a first release layer, a first adhesive layer, a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/40C08J7/04C09D175/14C09D133/04C09D7/61C09D7/62C09D7/63C08L67/02C08L83/04C08K3/36C08K3/34
CPCC09J7/401C08J7/0427C08J7/042C09D175/14C09D133/04C09D7/61C09D7/62C09D7/63C08K2003/265C08K2003/267C08K2201/005C08J2367/02C08J2483/04C08K3/36C08K3/34C08J2475/14C08L33/04C08K13/06C08K9/06C08K3/26C08K5/34922
Inventor 吴培服王琪池卫
Owner JIANGSU SHUANGXING COLOR PLASTIC NEW MATERIALS
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