Hydrocolloid adhesive and hydrocolloid dressing

An adhesive and hydrocolloid technology, applied in adhesives, medical science, absorbent pads, etc., can solve problems such as reducing cold flow and achieve the effect of good softness

Active Publication Date: 2013-03-27
明尼苏达矿业制造医用器材(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reinforcements used in the prior art often sacrifice other beneficial properties of hy

Method used

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  • Hydrocolloid adhesive and hydrocolloid dressing
  • Hydrocolloid adhesive and hydrocolloid dressing
  • Hydrocolloid adhesive and hydrocolloid dressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Example 1: Preparation of enhancer

[0093] Put 8 g of acrylic block copolymer ABC1 and 12 g of acrylic block copolymer ABC2 into a Brabender mixer (available from C.W. Brabender Instruments), and mix at 150° C. and 40 rpm for 20 minutes. The mixture was taken out and cooled to room temperature to obtain a reinforcing agent, which was used to prepare the hydrocolloid adhesive in the following Examples 2-7.

Embodiment 2-7

[0095] The reinforcing agent obtained in Example 1, PIB1, PIB2, tackifying resin, CMC, and diSol were put into the Brabender mixer according to the composition ratio of Table 1, and mixed at 150° C. and 40 rpm for 20 minutes. The mixture was taken out and sandwiched between two silicone release papers and cooled to room temperature.

Embodiment 8

[0098] Example 8. Rheological properties test

[0099] The rheological properties of the hydrocolloid adhesives prepared in Examples 2-7 of the present invention and Comparative Example 1 were tested. The method is as follows: The test instrument is TA Company's ARES dynamic rheometer, and a flat clamp with a diameter of 25mm is used. Perform a frequency sweep test at 32°C and 5% strain with a frequency range of 0.01-10 Hz, and record the elastic (storage) modulus (G') and loss tangent (tanδ). At low frequencies (0.01-0.1 Hz), the smaller the G'modulus, the softer the adhesive being tested, and the larger the tan δ, the better the flowability of the adhesive being tested. The softer the adhesive and the better the fluidity, the better the adhesion of the adhesive to the skin, and the better the leak-proof performance when used for skin protection around the stoma. It is used as a sealant for negative pressure drainage treatment The better the sealing effect during surgery.

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Abstract

The invention provides a hydrocolloid adhesive and a hydrocolloid dressing prepared from the hydrocolloid adhesive. The hydrocolloid adhesive comprises 15-60 wt% of adhesive substrate, 1-10wt% of acrylic acid segmented copolymer, 5-60wt% of hdrophilic polymer and 0-50wt% of tackifying resin. The acrylic acid segmented copolymer is used as an enhancing agent to obtain the hydrocolloid adhesive which has good integrity, low cold flow property and better flexibility.

Description

Technical field [0001] The invention relates to a hydrocolloid adhesive and a hydrocolloid dressing prepared therefrom, in particular to a hydrocolloid adhesive and a hydrocolloid dressing suitable for stoma care and negative pressure drainage therapy. Background technique [0002] Hydrocolloids are a very important type of wound dressing used in clinical care because of their water-absorbing properties, adhesion to the skin and self-debridement properties. Hydrocolloid adhesives can also be used as skin adhesives to protect the skin around the stoma of stoma patients. When used for skin protection around the stoma, the hydrocolloid is required to have suitable softness so that the hydrocolloid adhesive can adapt to the daily activities of the patient. [0003] Traditional hydrocolloid adhesives consist of a viscous polymer base and water-soluble polymer particles, such as gum, gelatin and carboxymethyl cellulose. Most traditional hydrocolloids have the problems of poor integrity...

Claims

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Application Information

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IPC IPC(8): C09J123/00C09J123/20C09J147/00C09J153/00A61L15/24A61L15/34A61L15/58
Inventor 龚祖光朱恩·查特吉范婷李海承
Owner 明尼苏达矿业制造医用器材(上海)有限公司
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