Medical hydrocolloid pressure-sensitive adhesive and preparation method thereof

A hydrocolloid and pressure-sensitive adhesive technology, applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve problems such as performance gaps, and achieve the effects of good initial viscosity, fast water absorption rate, and high bulk viscosity.

Inactive Publication Date: 2015-02-25
北京精诚通医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the actual field of medical treatment and wound healing, the use of medical hydrocolloid pressure-sensitive adhesives is long-term and effective. However, in the long-term use process, the source of medical hydrocolloid pressure-sensitive There is a big gap between domestic products and foreign products in terms of performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A medical hydrocolloid pressure-sensitive adhesive, raw materials include in parts by weight: 20 parts of styrene-isoprene-styrene block copolymer, 5 parts of rosin glyceride, 3 parts of acetate starch, 2 parts of Cuban resin, 1 part of sodium alginate, 3 parts of sodium carboxymethylcellulose, 2 parts of phthalate, 1 part of polyisobutylene, 0.5 part of antioxidant, 0.2 part of auxiliary antioxidant, 1 part of ammonium persulfate, diethylene glycol ethylene 2 parts of base ether, 2 parts of polytrimethyldihydroquinoline, 3 parts of naphthenic oil.

[0022] The antioxidant is a compound of antioxidant 1010 and antioxidant 1076, wherein the weight ratio of antioxidant 1010 and antioxidant 1076 is 3:2.

[0023] The auxiliary antioxidant is dilauryl thiodipropionate.

[0024] The preparation method of the above-mentioned medical hydrocolloid pressure-sensitive adhesive comprises the following steps:

[0025] Step 1: Add styrene-isoprene-styrene block copolymer, acetate s...

Embodiment 2

[0029] A medical hydrocolloid pressure-sensitive adhesive, raw materials include in parts by weight: 24 parts of styrene-isoprene-styrene block copolymer, 7 parts of rosin glyceride, 5 parts of acetate starch, 3 parts of Cuban resin, 2 parts of sodium alginate, 5 parts of sodium carboxymethyl cellulose, 6 parts of phthalate, 3 parts of polyisobutylene, 1.2 parts of antioxidant, 0.7 part of auxiliary antioxidant, 3 parts of ammonium persulfate, diethylene glycol ethylene 5 parts of base ether, 7 parts of polytrimethyldihydroquinoline, and 9 parts of naphthenic oil.

[0030] The antioxidant is a compound of antioxidant 1010 and antioxidant 1076, wherein the weight ratio of antioxidant 1010 and antioxidant 1076 is 3:2.

[0031] The auxiliary antioxidant is dilauryl thiodipropionate.

[0032] The preparation method of the above-mentioned medical hydrocolloid pressure-sensitive adhesive comprises the following steps:

[0033] Step 1, add styrene-isoprene-styrene block copolymer, ...

Embodiment 3

[0037] A medical hydrocolloid pressure-sensitive adhesive, raw materials include in parts by weight: 32 parts of styrene-isoprene-styrene block copolymer, 8 parts of rosin glyceride, 5 parts of acetate starch, 7 parts of Cuban resin, 3 parts of sodium alginate, 7 parts of sodium carboxymethyl cellulose, 6 parts of phthalate, 2 parts of polyisobutylene, 2.4 parts of antioxidant, 0.7 part of auxiliary antioxidant, 3 parts of ammonium persulfate, diethylene glycol ethylene 5 parts of base ether, 8 parts of polytrimethyldihydroquinoline, and 9 parts of naphthenic oil.

[0038] The antioxidant is a compound of antioxidant 1010 and antioxidant 1076, wherein the weight ratio of antioxidant 1010 and antioxidant 1076 is 3:2.

[0039] The auxiliary antioxidant is dilauryl thiodipropionate.

[0040] The preparation method of the above-mentioned medical hydrocolloid pressure-sensitive adhesive comprises the following steps:

[0041] Step 1: Add styrene-isoprene-styrene block copolymer, ...

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PUM

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Abstract

The invention provides a medical hydrocolloid pressure-sensitive adhesive and a preparation method thereof. The pressure-sensitive adhesive is prepared from styrene-isoprene-styrene block copolymer, ester gum, acetate starch, copal, sodium alginate, sodium carboxymethyl cellulose, phthalate, polyisobutylene, an antioxidant, an auxiliary antioxidant, ammonium persulfate, diethylene glycol vinyl ether, polytrimethyldihydroquinoline and naphthenic oil. The preparation method comprises the following steps: adding the styrene-isoprene-styrene block copolymer, acetate starch, copal, antioxidant and auxiliary antioxidant into a rheometer, and compounding; adding the ester gum, phthalate, polyisobutylene, ammonium persulfate, diethylene glycol vinyl ether and naphthenic oil into the rubber mixture, and compounding; and finally, adding the rest of components into the hot-melt pressure-sensitive adhesive, and compounding to obtain the hydrocolloid pressure-sensitive adhesive. The pressure-sensitive adhesive can be easily peeled from the skin surface, and has the advantages of high water absorptivity and high controllability on water-absorbing capacity when in use.

Description

technical field [0001] The invention belongs to the technical field of medical polymer materials, and in particular relates to a medical hydrocolloid pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesives, also known as pressure-sensitive adhesives, are extremely sensitive to pressure, and can be bonded to any smooth surface only by the pressure of finger touch. any remaining traces. Pressure-sensitive adhesive is a kind of viscoelastic body with both liquid viscous properties and solid elastic properties. This kind of viscoelastic paint also has "affecting factors and properties that can withstand both the contact process and the destruction process of bonding". Pressure-sensitive adhesive products are widely used, and are often used in packaging, auto parts, medical supplies, building materials, aerospace, etc., to achieve bonding purposes such as protection, sealing, and fixing. [0003] Medical pressure-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J101/28C09J103/06C09J105/04C09J11/08C09J11/06
Inventor 郭玉芹李永超刘乐峰
Owner 北京精诚通医药科技有限公司
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