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Adhesive for skin application, hardened product, and adhesive tape for skin application

An adhesive and hardening technology, applied in the direction of adhesives, polyether adhesives, adhesive types, etc., can solve the problems of insufficiency, low keratin peelability, etc., to achieve less slumps or protrusions, excellent skin adhesion. Adhesion, excellent keratin low peeling effect

Pending Publication Date: 2022-07-01
TOYO INK SC HOLD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an adhesive has insufficient keratin exfoliation properties, and there is also a problem in the expression of skin irritation from the acrylic monomer contained in a small amount.

Method used

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  • Adhesive for skin application, hardened product, and adhesive tape for skin application
  • Adhesive for skin application, hardened product, and adhesive tape for skin application
  • Adhesive for skin application, hardened product, and adhesive tape for skin application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0279]100 parts by mass of urethane prepolymer (P-1), 1.15 parts by mass of polyisocyanate component (B-1), and 20 parts by mass of ethyl acetate as a solvent were prepared and stirred with a disperser to obtain a uniform skin paste Use adhesive.

[0280] It apply|coated so that the thickness of the adhesive layer after drying might become 30 micrometers on release paper, and it dried at 100 degreeC for 2 minutes, and formed the adhesive layer. Next, after bonding the adhesive layer to the elastomer film surface of the laminate film using a rubber roll, curing was performed at 23° C.-50% RH for one week to obtain an adhesive tape for skin sticking with release paper.

Embodiment 2～27、 comparative example 1～7

[0282] In each of Examples 2 to 27 and Comparative Examples 1 to 7, the same procedure as in Example 1 was carried out, except that the blending composition and blending amount (parts by mass) of the adhesive were changed as shown in Tables 5 to 7. An adhesive for skin sticking and an adhesive tape for skin sticking using the same were produced. In each of Examples 5 to 7, conditions not described in the table were set as common conditions.

[0283] [Properties, Evaluation Items and Evaluation Methods of Adhesives, Cured Products and Adhesive Tapes]

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Abstract

An embodiment of the present invention relates to an adhesive for skin application, which contains a polyurethane polyol (P) and an organic isocyanate (C), and wherein the polyurethane polyol (P) is a reaction product of a polyol component (A) containing a polyether polyol (a1) and a polyisocyanate component (B), has a hydroxyl number of 2.0-45 KOHmg / g, has a weight average molecular weight of 25,000-300,000, and has a hydroxyl number of 1-5 KOHmg / g. The molecular terminal of the polyether polyol (a1) is a hydroxyl group, the content of primary hydroxyl groups in the hydroxyl group is 40 mol% or more, and the average number of hydroxyl groups is 2 or more.

Description

technical field [0001] The present invention relates to an adhesive for skin sticking. Moreover, it is related with the hardened|cured material obtained by hardening the said adhesive agent for skin sticking, and the adhesive tape for skin sticking which has the adhesive layer containing the said hardened material. Background technique [0002] In the medical field, sports field, beauty field, etc., generally used skin adhesives and adhesive tapes have strong skin adhesion in order to reliably adhere to the skin surface. As a result, when the adhesive tape is removed from the skin surface, the It may cause damage such as damage to the stratum corneum of the skin surface. [0003] Adhesive tapes that are applied to the skin surface of course have moderate skin adhesion, but as mentioned above, avoiding irritation to the skin surface is also an important required characteristic, especially for those with weak skin such as infants and the elderly. Damage to the skin surface d...

Claims

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Application Information

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IPC IPC(8): A61L15/26A61L15/20A61L15/58
CPCA61L15/26A61L15/20A61L15/58C08L75/04A61K9/70A61K47/08A61K47/16A61K47/34C08G18/00C09J11/00C09J175/04C09J171/00
Inventor 柏村岳佐藤龙
Owner TOYO INK SC HOLD CO LTD
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