A kind of hydrogel condom and preparation method thereof

A condom and hydrogel technology, applied in the direction of male contraceptives, etc., can solve problems such as condom safety, achieve the effects of good viewing, contraceptive and HIV filtering, and increase the user's physical sensation

Active Publication Date: 2018-11-30
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a hydrogel condom, the purpose of which is to improve the production material of the condom, thereby solving the safety and health problems of the existing condom

Method used

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  • A kind of hydrogel condom and preparation method thereof
  • A kind of hydrogel condom and preparation method thereof
  • A kind of hydrogel condom and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0026] The preparation method of this hydrogel condom comprises the steps:

[0027] (1) initiator, formula III compound Formula IV compound And water is mixed uniformly at 0 ℃~20 ℃ according to the mass ratio of (0.05~1):(5~20):1:(2~22), obtains reaction solution; Avoid mixing temperature too high, and cause formula III compound and Early polymerization of the compound of formula IV; wherein, R 1 Each independently is a hydrogen atom, methyl or ethyl; R 2 is hydroxyl, amino, polyethylene glycol, 2-(4-morpholino)ethoxy, ester group containing hydroxyl and / or dimethylamino, or amino group containing hydroxyl and / or dimethylamino; R 3 Including m ends, and the m ends are —O—, —CH 2— or —N—, m is 2 or 3; Acetone acrylamide, tert-butyl acrylamide, dimethylaminopropyl acrylamide, N-(3-dimethylaminopropyl) methacrylamide, N,N-dimethylacrylamide, hydroxyethyl acrylate, Hydroxyethyl methacrylate, 2-(4-morpholinyl)ethyl 2-acrylate, 2-(4-morpholinyl)ethyl 2-methyl-2-acrylate, eth...

Embodiment 1

[0033] Ammonium persulfate / tetramethylethylenediamine with a mass ratio of 1:1 is used as an initiator, the compound of formula III is acrylamide, and the compound of formula IV is methylenebisacrylamide, and the hydrogel condom of the embodiment of the present invention The preparation method comprises the steps:

[0034] (1) Mix ammonium persulfate / tetramethylethylenediamine as the initiator, acrylamide, methylenebisacrylamide and water at a mass ratio of 0.02:5:1:4 at 10°C.

[0035] (2) Pour the solution obtained in step (1) into a sheet-shaped mold, polymerize and solidify at 55°C to obtain a 1mm-thick original sheet-shaped hydrogel, and the circular sheet-shaped hydrogel has a wavelength range of 400nm to 700nm The light transmittance is more than 70%, and it has good transparency.

Embodiment 2

[0037] Ammonium persulfate / tetramethylethylenediamine with a mass ratio of 1:2 is an initiator, the compound of formula III is methoxypolyethylene glycol acrylate, and the compound of formula IV is polyethylene glycol diacrylate. The present invention The preparation method of the hydrogel condom of embodiment comprises the steps:

[0038] (1) Mix ammonium persulfate / tetramethylethylenediamine initiator, methoxypolyethylene glycol acrylate, polyethylene glycol diacrylate and water in a mass ratio of 0.5:10:1:5 at 4°C Mix well to obtain a solution.

[0039] (2) The solution obtained in step (1) is poured into the curing mold, polymerized and solidified at 50°C to obtain a hydrogel condom with a thickness of 0.05 mm, such as figure 1 shown.

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Abstract

The invention discloses a hydrogel condom, and a preparation method thereof. The hydrogel condom comprises a hydrogel polymer composed of a structure unit 1 represented by formula I in the invention and a structure unit 2 represented by formula II in the invention at mass ratio of 5:1-20:1, wherein R1 in the formula I and the formula II is used for independently representing hydrogen atom, methyl, or ethyl; R2 is used for representing hydroxyl, amino, polyethylene glycol, methoxy polyethylene glycol, 2-(4-morpholinyl) ethyoxyl, ester group containing hydroxyl and / or dimethylamino, or amino containing hydroxyl and / or dimethylamino; R3 contains m terminal groups selected from -O-, -CH2-, or -N-, and m is used for representing 2 or 3. The hydrogel condom can be used for contraception and filtering human immunodeficiency virus effectively, is safe and comfortable to use, can be used without lubricating agents, and is a novel water lubrication type condom.

Description

technical field [0001] The invention belongs to the technical field of production of family planning appliances, and more specifically relates to a hydrogel condom and a preparation method thereof. Background technique [0002] Condoms are widely used contraceptives in the world at present. Existing condoms are mainly made of natural rubber, synthetic rubber and water-based polyurethane, and the rubber accelerator (MBT) therein may contain carcinogenic factors. The World Health Organization (WHO) has listed a widely used rubber additive "2-mercaptobenzimidazole" as a carcinogen, on the same level as red meat that was listed as a carcinogen in 2015. Therefore, this type of condom has the risk of allergies, discomfort and even cancer. [0003] At the same time, existing condoms need to be supplemented with additional lubricants. Internationally accepted requirements, the total amount of lubricant should be about 400 mg (square bag). The current commercial condom lubricants...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/56C08F222/38C08F299/02C08L33/26C08L57/10A61F6/04
CPCA61F6/04C08F220/286C08F220/56C08F299/026C08L33/26C08L57/10C08L2201/10C08F222/385
Inventor 朱明强李冲
Owner HUAZHONG UNIV OF SCI & TECH
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