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Adhesive tape and method for producing same

A technology of adhesive tape and adhesive sheet, which is applied in the direction of adhesive heating, adhesive method using foam adhesive, adhesive type, etc., which can solve the limitation of water vapor transmission rate, The adhesive tape has no problems such as air permeability and difficulty in expelling sweat, and achieves excellent water vapor transmission rate, increased water vapor transmission rate, and improved foaming efficiency.

Active Publication Date: 2018-03-27
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the general-purpose adhesive tape is used for medical applications, there are problems that the adhesive tape is not breathable and thus has a low water vapor transmission rate, it is difficult to discharge sweat when the adhesive tape is attached to the skin, and skin maceration
As an adhesive composition, an acrylic adhesive composition is often frequently used, but it is difficult for the composition itself to have 3,000 g / m 2 ·High water vapor transmission rate of one day or more
Therefore, when the adhesive tape is used for medical applications and attached to the skin for a long period of time, the adhesive tape has no air permeability and thus has a low water vapor transmission rate, and therefore, moisture etc. generated by the skin cannot be discharged, and skin maceration may occur
[0006] In order to solve the problem, an adhesive tape having a hole is manufactured by making an adhesive composition contain a resin and a foaming agent and foaming, but the manufacturing method has a limitation in improving the water vapor transmission rate

Method used

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  • Adhesive tape and method for producing same
  • Adhesive tape and method for producing same
  • Adhesive tape and method for producing same

Examples

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Embodiment approach

[0026] According to an exemplary embodiment of the present invention, the substrate may be formed of organic fiber or inorganic fiber material fabric, paper, or the like.

[0027] According to an exemplary embodiment of the present invention, the adhesive tape can ensure a high water vapor transmission rate through a porous structure including pores.

[0028] According to an exemplary embodiment of the present invention, the porous structure may include a plurality of pores, and the plurality of pores may be classified into, for example, two forms of closed cells or open cells.

[0029] According to an exemplary embodiment of the present invention, the porous structure may be a structure including any one of closed cells and open cells, or a structure including both closed cells and open cells. A closed cell is a cell formed by a structure in which the wall surface of the cell is completely closed, and therefore is not connected to other cells, and is also called a closed cell. An o...

Embodiment approach

[0082] Hereinafter, the present invention will be described in detail with reference to embodiments for specifically describing the present invention. However, the embodiments according to the present invention may be modified in various forms, and it should not be construed that the scope of the present invention is limited to the embodiments to be described below. The examples of this specification are provided to more fully explain the present invention to those skilled in the art.

Embodiment

[0084] By making acrylic acid (AA), methyl (meth)acrylate (MMA), ethylhexyl acrylate (EHA), ethyl acrylate (EA), butyl acrylate (BA), water and poly(ethylene glycol) nonane Copolymerization of phenyl tetraammonium sulfate emulsifier to obtain acrylic resin with a weight average molecular weight of 10,000,000 g / mol. The content of each component is shown in the following [Table 1].

[0085] [Table 1]

[0086]

[0087] An aqueous acrylic adhesive composition was prepared, which contained 0.9 parts by weight of p,p'-oxobis(benzenesulfonyl hydrazide) based on 100 parts by weight of acrylic resin as a foaming agent, based on 100 parts by weight of acrylic resin 1.2 parts by weight of N,N-dimethyl lauryl amine oxide as a surfactant, and 35 parts by weight of zinc oxide based on 100 parts by weight of acrylic acid as a curing agent.

[0088] After the adhesive composition is applied to the release film formed of PET material, it is performed at the first temperature (T1), the second tempe...

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Abstract

The present invention provides an adhesive tape and a method for producing same, the adhesive tape comprising: a substrate; and an adhesive sheet provided on one surface of the substrate and comprising hardened material of water-based acrylic adhesive composition, wherein the adhesive sheet has a porous structure comprising holes and water vapor transmission rate of 3,000-5,000 g / m<2>*day under the condition of 40 DEG C temperature and 20% relative humidity.

Description

Technical field [0001] This specification claims the priority and rights of Korean Patent Application No. 10-2016-0021422 filed at the Korean Intellectual Property Office on February 23, 2016, the entire content of which is incorporated herein by reference. [0002] The invention relates to an adhesive tape and a manufacturing method thereof. Background technique [0003] When the adhesive tape is used in medical applications, the adhesive tape is used in the form of emergency adhesive tape, surgical tape, and the like. The adhesive tape includes a substrate and an adhesive sheet formed on the substrate, and the adhesive sheet is adhered to the surface of the skin when used in medical applications. [0004] The universal adhesive tape is manufactured by applying the adhesive composition to the base film. When a general-purpose adhesive tape is used for medical applications, there are problems: the adhesive tape has no air permeability and therefore has a low water vapor transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/30C09J7/20C09J7/21
CPCC09J7/20C09J7/21C09J5/06C09J5/08C09J2400/24C09J2433/00C09J7/385C09J2301/00C09J2301/122C09J2203/00B65D5/708C09J125/14C09J133/08H01L21/6835
Inventor 韩祯仁崔源九金章谆崔兑伊梁芝娟金丹雅朴书玄
Owner LG CHEM LTD
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