Anti-residue silicone protective film for process

A technology of protective film and residual glue, applied in the direction of adhesives, film/sheet adhesives, non-polymer adhesive additives, etc., can solve the problems of affecting automatic continuous production, poor antistatic effect, low viscosity, etc. , to achieve the effect of solving automatic continuous production, not easy to warp or even fall off, and strong cohesion

Active Publication Date: 2021-06-25
ZHEJIANG OUREN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, this kind of protective film comes from foreign suppliers. Domestic products have the following technical problems and cannot replace imported products. The main problems are: 1. The viscosity is too low or too high, so that the edge warps or even falls off during use. , or produce residual glue during removal; 2. The base material is too hard or too soft, so that it is easy to warp or break; 3. The antistatic effect is not good, which affects automatic continuous production

Method used

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  • Anti-residue silicone protective film for process
  • Anti-residue silicone protective film for process

Examples

Experimental program
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Effect test

Embodiment 1~4

[0035] Embodiments 1 to 4: A kind of anti-residue silicone protective film for manufacturing process, including a substrate layer 1 and an organic silica gel layer 2 coated on the surface of the substrate layer 1, and the substrate layer 1 further includes a PET film 101 and PE Film 103, this PET film 101 and PE film 103 are combined together by an adhesive layer 102;

[0036] The thickness of the PET film 101 is 20 μm, the thickness of the PE film 103 is 20 μm, the thickness of the adhesive layer 102 is 10 μm, and the thickness of the silicone layer 2 is 15 μm;

[0037] The adhesive layer 102 is a polyester adhesive layer.

[0038] The organic silica gel layer 2 is specifically composed of the following components in parts by weight:

[0039] components Example 1 Example 2 Example 3 Example 4 Methyl vinyl silicone rubber 270 200 300 350 polyisoprene rubber 40 15 30 20 silicone resin 10 20 25 15 Vinyl silicone oil 6 5 4 2 ...

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Abstract

The invention discloses an anti-residue rubber silica gel protective film for a manufacturing process, which comprises a substrate layer and an organic silica gel layer coated on the surface of the substrate layer. The organic silica gel layer is composed of the following components: methyl vinyl silicone rubber 200 ~350 parts, 10~40 parts of polyisoprene rubber, 10~25 parts of silicone resin, 2~6 parts of vinyl silicone oil, 0.5~5 parts of hydrogen-containing silicone oil, 3‑thiocyanatopropyltriethoxy 0.3~4 parts of silane, 0.3~2 parts of 2-aminobenzimidazole, 0.5~3 parts of methyl butynol, 0.5~2 parts of platinum catalyst, 0.3~1 part of cyclohexanone peroxide, 0.2~3.8 parts of nano graphite powder 1-3 parts of potassium monododecyl phosphate, 400-600 parts of toluene, 250-400 parts of ethyl acetate; In addition to leaving no residual glue, it can meet the technical needs of temporary fixation in the mobile phone manufacturing process.

Description

technical field [0001] The invention relates to a protective film, in particular to an anti-residue rubber silica gel protective film for manufacturing process. Background technique [0002] Before the assembly of the smart phone is completed, a medium-viscosity protective film needs to be pasted and temporarily fixed around the frame. After the assembly of the smartphone is completed, the protective film pasted around the frame is torn off. At present, this kind of protective film comes from foreign suppliers. Domestic products have the following technical problems and cannot replace imported products. The main problems are: 1. The viscosity is too low or too high, so that the edge warps or even falls off during use. , or produce residual glue during removal; 2. The base material is too hard or too soft, so that it is easy to warp or break; 3. The antistatic effect is not good, which affects automatic continuous production. [0003] Therefore, developing and developing a p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/30C09J7/29C09J183/07C09J109/00C09J183/04C09J185/00C09J9/02C09J11/06
CPCC09J7/29C09J7/30C09J183/04C09J11/06C09J2423/046C09J2467/006C08K2201/011C09J2301/162C09J2301/122C09J9/02C08L2201/04C08K2201/001C08K2201/017C09J2301/408C09J2203/326C08L9/00C08L83/04C08K3/04C08K5/3475C08K5/521
Inventor 夏厚君涂大记潘华杨晓明
Owner ZHEJIANG OUREN NEW MATERIALS CO LTD
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