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Double-layer sandwich or multi-layer sandwich multi-latex condom and preparation method thereof

A condom, high-barrier technology, applied in the field of condoms, can solve problems such as the inability to safely prevent HIV penetration, and achieve the effect of high density

Active Publication Date: 2011-02-02
桂林恒保健康防护有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Medical experiments have proven that natural latex condoms cannot safely prevent the penetration of HIV, etc.

Method used

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  • Double-layer sandwich or multi-layer sandwich multi-latex condom and preparation method thereof
  • Double-layer sandwich or multi-layer sandwich multi-latex condom and preparation method thereof
  • Double-layer sandwich or multi-layer sandwich multi-latex condom and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: 3-layer sandwich high-barrier condom

[0040] The polymer synthetic latex of the present invention is prepared by adding non-natural rubber latex polymer materials such as polyurethane, polyvinylprene or nitrile, adding relevant matching raw materials, fully emulsifying and dispersing after stirring, and forming an emulsion, which is the synthetic latex. Its material and material weight ratio are:

[0041] Raw material weight ratio

[0042] Polyurethane 5-50

[0043] Accelerator 0.2-1

[0044] Antiaging agent 0.3-1.5

[0045] Zinc oxide 0.2-1

[0046] Natural latex 4.3-46.5

[0047] or

[0048] Raw material weight ratio

[0049] Polyvinylprene 5-80

[0050] Accelerator 0.2-1

[0051] Antiaging agent 0.3-1.5

[0052] Zinc oxide 0.2-1

[0053] Natural latex 4.3-16.5

[0054] or

[0055] Raw material weight ratio

[0056] Nitrile 5-50

[0057] Accelerator 0.2-1

[0058] Antiaging agent 0.3-1.5

[0059] Zinc oxide 0.2-1

[0060] Natural latex 4....

Embodiment 2

[0069] By increasing the dipping times and order, a four-layer or multi-layer sandwich high-barrier condom can be made, and the rest are the same as in Example 1.

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PUM

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Abstract

The invention provides a double-layer sandwich or multi-layer sandwich multi-latex condom and a preparation method thereof. The preparation method of the condom comprises the following steps: vulcanizing natural latex; emulsifying and dispersing polymer materials such as polyurethane or polyisoprene or butyronitrile or other non-natural latex and making the polymer materials into synthetic latex; and dipping a condom die in the natural latex and the synthetic latex respectively and then drying to finally obtain the double-layer sandwich or multi-layer sandwich multi-latex condom the middle layer of which is made from the natural latex or the synthetic latex, wherein, the innermost layer and the outermost layer of the condom can be made from the same material or different materials. The double-layer sandwich or multi-layer sandwich multi-latex condom of the invention has stretch rate and comfortability of the natural latex as well as high compactness of the synthetic latex, thus being applicable to obstructing penetration of small molecules such as hepatitis, AIDS virus and the like.

Description

technical field [0001] The invention relates to a condom, especially a double-layer sandwich or multi-layer sandwich high-barrier condom and a preparation method thereof. Background technique [0002] At present, condoms are generally made of natural rubber latex. This kind of condom has good elasticity and is well formed after adding relevant accelerators. It is suitable for men and women to wear. However, there are certain gaps in the molecular structure of natural latex. The above objects, such as human sperm with a diameter of 5000 nanometers, etc.; but for AIDS with a diameter of 120 nanometers and hepatitis virus with a diameter of 40 nanometers, natural latex lacks the corresponding blocking ability. Medical experiments have proved that natural rubber latex condoms cannot safely prevent the penetration of HIV, etc. [0003] Existing technology has found that polymer synthetic materials such as polyurethane, polyvinylprene, and nitrile have a certain similarity in mo...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L9/04C08L7/02C08L47/00A61F6/00C08K3/22
Inventor 胡智强聂琴波
Owner 桂林恒保健康防护有限公司
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