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Manufacture process of protective film with no rubber residue

A manufacturing process and protective film technology, applied in the direction of film/sheet adhesives, adhesives, film/sheet release coatings, etc., to reduce surface tension, improve water resistance, and improve yellowing resistance.

Inactive Publication Date: 2019-03-08
ZHEJIANG OUREN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, many protective films have similar problems in the process of use.

Method used

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  • Manufacture process of protective film with no rubber residue
  • Manufacture process of protective film with no rubber residue
  • Manufacture process of protective film with no rubber residue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0028] Embodiment 1~4: A kind of manufacturing process of no residual glue protective film, described protective film comprises PET breathable film 1, antistatic coating 2, modified styrene-butadiene rubber adhesive layer 3 and peeling layer 4, described antistatic The coating 2 is coated on the PET breathable film 1, the antistatic coating 2 is coated with a modified styrene-butadiene rubber adhesive layer 3, and the peeling layer 4 is compounded on the modified styrene-butadiene rubber adhesive layer 3;

[0029] The modified styrene-butadiene rubber adhesive layer 3 is made by drying the modified styrene-butadiene rubber adhesive, and the modified styrene-butadiene rubber adhesive layer 3 is obtained by the following steps:

[0030] Step 1, taking each component according to parts by weight;

[0031] Step 2. Take a reaction kettle and control the temperature in the reaction kettle to 20~25°C. First, add 25~30 parts of butyl acetate and 15~20 parts of ethyl acrylate into the ...

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Abstract

The invention discloses a manufacture process of protective film with no rubber residue, comprising the steps of weighing the components by weight; taking a reactor, controlling the temperature in thereactor to 20-25 DEG C, adding butyl acetate and ethyl acrylate into the reactor, mixing well, and adding star-structured thermoplastic styrene-butadiene rubber slowly into the reactor during stirring; stirring nonstop under the conditions that the reactor is sealed and the temperature in the reactor is 20-25 DEG C, adding terpene resin and rosin into the reactor after the star-structured thermoplastic styrene-butadiene rubber is fully dissolved; stirring for 1-3 h under the conditions that the reactor is sealed and the temperature in the reactor is 20-25 DEG C, and adding modified polyurethane prepolymer already cooled to 20-25 DEGC into the reactor. The protective film with no rubber residue manufactured via the manufacture process has excellent yellowing resistance, good initial adhesiveness, long-term adhesive power and rarity of rubber separation.

Description

technical field [0001] The invention relates to a protective film, in particular to a manufacturing process of the protective film. Background technique [0002] With the continuous advancement of technology, 3C products are constantly diversified, lightweight and integrated into life, and many 3C products use touch screen operations to improve operability and convenience, especially smart phones and tablet computers , PDA and other touch products, but the touch products are easy to stick to grease, dust, scratches and other problems after use, which may cause damage to the display itself. Very difficult to remove. Therefore, to avoid scratches on the surface of electrical appliances or electronic equipment and the external environment where the surface is located, dust, or even human touch and collision, most of them are protected with a protective film. [0003] The protective film is a layer of film on the outside of the protected item. Its main function is to protect t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/50C09J7/25C09J7/30C09J109/06C09J175/14C09J11/06C09J11/08
CPCC08L2205/03C08L2312/00C09J7/255C09J7/30C09J7/50C09J11/06C09J11/08C09J109/06C09J2203/318C09J2301/122C09J2301/408C09J2409/00C09J2475/00C08L75/14C08L45/00C08K5/18C08K5/31C08K5/3725
Inventor 夏厚君涂大记吴鹏飞向建军孙永春杨晓明
Owner ZHEJIANG OUREN NEW MATERIALS CO LTD
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