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Skinfriendly adhesive with ph-lowering substance

A technology of adhesives and silicone adhesives, applied in adhesives, surgical adhesives, viscous dressings, etc., can solve problems such as inability to effectively obtain pH values

Inactive Publication Date: 2004-01-14
MOLNLYCKE HEALTH CARE AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, all of these product types that contain adhesives are not effective at achieving the correct pH when the adhesive comes into contact with the skin

Method used

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  • Skinfriendly adhesive with ph-lowering substance
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  • Skinfriendly adhesive with ph-lowering substance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

1

5.4

[0046] 4. Melt the soft self-adhesive hot melt adhesive Dispomelt 70-4647 (from National, Bridgewater, NJ, USA) at 150°C. Under vigorous stirring, pectin (the same amount as in Example 2) and citric acid / phosphate buffer (same as in Example 1) were slowly added to the heated hot-melt adhesive, respectively. The different samples were transferred into heated Teflon sheets (150° C.) and coated in a homogeneous layer of 1 mm thickness. A support material consisting of a fibrous fabric is placed on top so that it adheres to the upper surface of the adhesive layer. The role of the fabric is to reinforce the sample so that it can be peeled off the Teflon surface without separation. Cool the sample to solidify. After cooling, the sample and the fabric were peeled off together from the Teflon surface. The cured adhesive is soft and self-adhesive and adheres to the skin. A wet filter paper was placed on the underside of the sample (ie the side of the sa...

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PUM

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Abstract

The present invention relates to a skin-friendly adhesive. According to the invention, the adhesive contains a substance which lowers the pH on contact with skin moisture. The invention also relates to a wound dressing which is provided with such an adhesive.

Description

technical field [0001] This invention relates to adhesives which are mild to the skin and wound dressings containing such adhesives. Background of the invention [0002] The normal pH of healthy skin is between 4.0-6.0, which according to experts, is the most favorable environment for the skin. Many different pH-dependent biological and biochemical mechanisms contribute to maintaining the skin in this optimal pH range. [0003] It has long been known that "acid shields" provide immediate protection to the skin against unwanted microorganisms, which are inactive in an acidic environment. [0004] One of the most important functions of the skin is to form two barriers, first to regulate the evaporation of water from the body, and second to prevent unwanted substances and particles from penetrating the skin from the outside. For example, the barrier protects against bacteria, fungi, viruses, allergens and toxic substances. This barrier also acts against ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/472A61F13/00A61F13/02A61F13/15A61L15/42A61L15/58A61L28/00C09J11/00C09J133/00C09J183/04C09J201/00
CPCA61L15/42A61L15/585A61L28/0034A61L28/0026
Inventor T·法伯
Owner MOLNLYCKE HEALTH CARE AB