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High-elasticity skin-softening type polyurethane condom and preparation method thereof

A kind of skin-softening and condom technology, which is applied in the direction of male contraceptives, etc., can solve the problems of low stretch ratio, low fault tolerance rate, skin allergies, etc., and achieve toughness and stretch ratio improvement, good elasticity and strength, and increase The effect of friction

Active Publication Date: 2018-06-01
海氏海诺乳胶(青岛)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the most common condom is generally a silicone condom, but this condom has three defects: one is that a part of the water-soluble protein contained in it cannot be removed, and it is easy to cause skin allergies to a small number of people, which has potential safety hazards; Limited by its manufacturing process, the thickness is relatively thick, which is easy to reduce the user experience; thirdly, limited by the characteristics of the silicone material itself, the thermal conductivity is poor, which is also easy to reduce the user experience
But at the same time, there are also some relative deficiencies: first, the toughness is poor, and the breakage and shedding rate are higher than those of silicone condoms; second, it is relatively brittle and hard, and the error tolerance rate is low when used; The population is not widely applicable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-elasticity skin-soft polyurethane condom, made of the following raw materials in parts by weight: polyester polyol containing 28% unsaturated groups by mass fraction (such as polyester diol containing unsaturated groups or containing unsaturated groups Saturated adipic acid polyester, etc., hereinafter the same) emulsion 100 parts, polyether polyols containing unsaturated groups with a mass fraction of 15% (such as polyoxypropylene glycol containing unsaturated groups, Polyoxypropylene triol containing unsaturated groups or polytetrahydrofuran diol containing unsaturated groups, etc., the same below) emulsion 24 parts, blocked isocyanate crosslinking agent 0.8 parts, defoaming agent (such as polyoxygen 0.3 parts of propylene glyceryl ether, the same below), 0.5 parts of water-based adhesion promoter, 2.5 parts of fulvic acid sealant, 4 parts of graphite, and 60 parts of sodium sulfate solution with a mass fraction of 1%.

[0025] The method for making above-menti...

Embodiment 2

[0042] The whole is consistent with Example 1, the difference is:

[0043] Among the raw materials: 100 parts of emulsion containing 25% unsaturated group polyester polyol by mass fraction, 25 parts of emulsion containing 15% unsaturated group polyether polyol by mass fraction, 0.5 parts of blocked isocyanate crosslinking agent 0.2 parts of defoaming agent, 0.2 parts of water-based adhesion promoter, 2 parts of fulvic acid sealant, 3 parts of graphite, and 50 parts of sodium sulfate solution with a mass fraction of 1%.

[0044] In the manufacturing method steps:

[0045] 1) Preparation of inner stock solution

[0046] ① Divide the graphite into three equal parts and make two straight graphite rods, and connect the two straight graphite rods to the positive and negative poles of the DC power supply with a voltage of 18V;

[0047] ②Insert the two graphite rods obtained in step ① into a container containing 50 parts of sodium sulfate solution with a mass fraction of 1% in paral...

Embodiment 3

[0058] The whole is consistent with Example 1, the difference is:

[0059] Raw materials: 80 parts of emulsion containing 30% unsaturated group polyester polyol by mass fraction, 20 parts of emulsion containing 20% ​​unsaturated group polyether polyol by mass fraction, blocked isocyanate crosslinking agent 1 parts, 0.5 parts of defoaming agent, 0.5 parts of water-based adhesion promoter, 3 parts of fulvic acid sealant, 5 parts of graphite, and 80 parts of sodium sulfate solution with a mass fraction of 1%.

[0060] In the manufacturing method steps:

[0061] 1) Preparation of inner stock solution

[0062] ① Divide the graphite into 5 equal parts and make two straight graphite rods;

[0063] 2) Preparation of outer stock solution

[0064] ① 80 parts of emulsion containing 30% unsaturated group polyester polyol by mass fraction, 20 parts of emulsion containing 20% ​​unsaturated group polyether polyol by mass fraction, 0.5 part of defoamer, water-based Mix 0.5 parts of the fo...

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Abstract

The invention relates to a high-elasticity skin-softening type polyurethane condom and a preparation method thereof. The condom is prepared from the following raw materials in parts by weight: 80-100parts of an emulsion containing 25-30% of an unsaturated group, namely polyester polyol, in percentage by mass, 20-25 parts of an emulsion containing 15-20% of an unsaturated group, namely polyester polyol, in percentage by mass, 0.5-1 part of a closed isocyanate cross-linking agent, 0.2-0.5 part of a defoaming agent, 0.2-0.5 part of an aqueous adhesion promoter, 2-3 parts of a fulvic acid sealant, 3-5 parts of graphite, 50-80 parts of a sodium sulfate solution which is 1% in mass percentage, an adequate amount of absolute ethyl alcohol and an adequate amount of pure water; and the preparationmethod comprises three steps, namely preparing an inner layer stock solution, preparing an outer layer stock solution and shaping the condom. The condom provided by the invention is high in strength,high in elasticity and strong in skin affinity.

Description

technical field [0001] The invention relates to the field of sex products, in particular to a high-elastic skin-softening polyurethane condom and a manufacturing method thereof. Background technique [0002] At present, the most common condom is generally a silicone condom, but this condom has three defects: one is that a part of the water-soluble protein contained in it cannot be removed, and it is easy to cause skin allergies to a small number of people, which has potential safety hazards; Limited by its manufacturing process, the thickness is relatively thick, which easily reduces the user experience; third, limited by the characteristics of the silicone material itself, the thermal conductivity is poor, which also easily reduces the user experience. [0003] With the development of science and technology, some manufacturers gradually began to introduce condoms made of polyurethane. Compared with silica gel, this material has five advantages: high strength, high density, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F6/04C08G18/67C08G18/68C08K3/04
CPCA61F6/04C08G18/6795C08G18/68C08K3/04
Inventor 王君
Owner 海氏海诺乳胶(青岛)有限公司
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