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Multilayer co-extruded film adhesive tape

A multi-layer co-extrusion and tape technology, which is applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problem of single characteristics of pressure-sensitive tapes, and achieve the effect of preventing the leakage of fluid objects

Inactive Publication Date: 2013-02-27
AOXIN ADHESIVE SCI & TECH HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome that the existing pressure-sensitive tapes have single characteristics and cannot be used for plugging and repairing effectively or for a long time, the present invention provides a pressure-sensitive tape, which can not only be used as an ordinary pressure-sensitive tape, but also has a variety of materials Their respective advantages, especially when repairing leaks and damaged points, are more effective than ordinary pressure-sensitive tapes to prevent leakage for a longer period of time, and are more professionally used for repairs. They can be called repair tapes

Method used

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  • Multilayer co-extruded film adhesive tape

Examples

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Embodiment Construction

[0010] exist figure 1 Among them, the base material (1) of the multi-layer co-extrusion film tape is composed of three or more materials with different characteristics to form a multi-layer co-extrusion film with the advantages of each component, and the proportion of each component mass is based on the use environment. For example, if high-strength impact resistance is required, the PA content should be high; if high barrier performance is required, the EVOH content should be high. Then corona treatment is performed on the surface where the base material (1) and the adhesive (2) meet, and after the treatment is completed, the adhesive (2) is compounded on the surface of the base material (1), thus making a Multi-layer co-extruded film tape. The adhesive (2) in the adhesive tape requires an adhesive (2) that can be in close contact with the contact surface of the substrate (1) and the adhesive (2) and with the material of the hole surface (3).

[0011] exist figure 2 In th...

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Abstract

The invention discloses a multilayer co-extruded film adhesive tape. The multilayer co-extruded film adhesive tape is a pressure-sensitive adhesive tape adopting a base having respective characteristics of multiple materials. The base of the multilayer co-extruded film adhesive tape is a multilayer co-extruded film of which the surface is treated, solves the problem of a single performance of a single material, has respective advantages of ingredients of the base and is coated with an adhesive on the treated surface thereby forming the multilayer co-extruded film adhesive tape. The multilayer co-extruded film adhesive tape adopting the base has high impact resistance, high tensile strength and high barrier properties, realizes simple, fast and effective repair of broken holes and broken points, avoids leakage for a long time, is one of multilayer co-extruded adhesive tapes and is named as a repair adhesive tape.

Description

Technical field [0001] The invention relates to a pressure-sensitive adhesive tape, especially an adhesive tape whose base material has the respective characteristics of various materials. Background technique [0002] At present, the pressure-sensitive tapes used by people to temporarily attach leaks are mainly composed of substrates and adhesives. Most of the substrates are plastic films, and the main types are polyethylene (PE), polypropylene (PP) and polyurethane. (PET) Three kinds. However, the tapes based on these three materials cannot all have their own characteristics: PP and PET are not easy to stretch and cannot buffer pressure; , The barrier property of salt is poor. Therefore, if there is a leak in some pipelines conveying flammable gas, salt solution, or sea water, the use of these adhesive tapes for quick bonding cannot effectively or prevent leakage for a long time, and there is a potential safety hazard. Contents of the invention [0003] In order to ov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02
Inventor 罗晖
Owner AOXIN ADHESIVE SCI & TECH HUBEI