Self-adhering protecting film and application thereof in adhering protecting smooth-surfaced PC board

A technology of self-adhesive protective film and adhesive layer, which is applied in the direction of film/sheet adhesives and adhesives, which can solve the problems of difficult to tear, residual glue, and inability to tear, and achieve uniform thickness, good flexibility, easy to tear effect
CN104497900AActive Publication Date: 2015-04-08ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
Publication Date
2015-04-08

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Abstract

The invention provides a self-adhering protecting film. The self-adhering protecting film comprises a surface layer, a core layer and an adhering layer, wherein the core layer is arranged between the surface layer and the adhering layer; the adhering layer is prepared from two of low-density polyethylene, an SEBS thermoplastic elastomer, metallocene polyethylene and a POE thermoplastic elastomer. According to the self-adhering protecting film, the core layer is prepared from two of low-density polyethylene, the SEBS thermoplastic elastomer, metallocene polyethylene and the POE thermoplastic elastomer, and therefore, the prepared self-adhering protecting film is relatively high in adhering force with an adhering object under the normal temperature; in addition, the adhering force has small change as temperature changes; when processing is performed at high temperature, the adhering force can be kept within a certain range, instead of excessively raising, and therefore, the self-adhering protecting film is easily torn without any adhesive residue under the high temperature state.
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Description

technical field

[0001] The invention relates to the technical field of substrate surface protection, in particular to a self-adhesive protective film and its application in bonding and protecting smooth PC boards. Background technique

[0002] The protective film is a film used to protect the surface of vulnerable objects, and its purpose is to prevent the surface of the protected substrate from being damaged or polluted during transportation, assembly, and processing. The protective film will always be attached to the surface of the protective substrate until the product is delivered to the user before being torn off and discarded. Protective film is widely used on the surface of metal products, coated metal products, plastic products, automotive products, electronic products, and profile products to protect the surface of substrates and avoid surface damage or pollution.

[0003] The protective film can be divided into adhesive type and self-adhesive type according to the...

Claims

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