JPS6328620B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a highly effective contraceptive condom that uses a spermicidal jelly.

[Conventional technology]

Condoms have long been well known as a contraceptive device, but there are many problems with their contraceptive effectiveness, such as the membrane being torn by nails or hair during use, the timing of putting the condom on incorrectly, and its atrophy after use (when it is removed). There are many cases of contraceptive sales being lost due to leakage or condoms being left in the vagina. Furthermore, the current situation is that vaginitis and gonorrhea caused by Trichomonas bacteria are on the rise.

The present applicant previously proposed in Japanese Patent Publication No. 52-7672 "Condom with Jelly" to mix water-soluble contraceptives and other drugs into a water-soluble jelly to be placed in the semen-retaining sac. Spermicidal contraceptives were not specified.

In general, simply mixing a spermicide contraceptive into the rubber that makes up the condom body will cause the rubber to age faster and make the rubber membrane more likely to break, or if a spermicide contraceptive is mixed into a jelly, the jelly will It was a problem as I got older.

[Problem that the invention seeks to solve]

The present invention aims to solve the above-mentioned conventional problems, and is intended to be used as a spermicidal contraceptive using a chain of polyoxyethylene nonyl phenyl ether, which is a polyoxyethylene-based nonionic surfactant that is itself rich in lubricity. By mixing vitamin E into the jelly to prevent the deterioration of the NP-10 and the rubber of the condom body, respectively, The aim is to obtain a safe condom that maintains spermicidal properties over a long period of time.

[Means for solving problems]

To summarize the present invention, the present invention uses the above-mentioned NP-10 as a main ingredient, and contains glycerin, sucrose, gelatin,
A spermicidal jelly prepared by sequentially adding and mixing butyl paraoxybenzoate, purified water, vitamin E, and (dl-α tocopherol) is placed on the entire surface of the condom or in the semen reservoir, and then silicone oil is applied to the appropriate areas of the condom. The present invention relates to a spermicidal condom characterized by having a film formed thereon.

[Effect]

In the present invention, the NP-10, which is mixed into a jelly as a spermicidal contraceptive, has been found to have a stable spermicidal effect because it is uniformly mixed into the jelly due to its surfactant properties. Moreover, the surface active action of NP-10 can improve the drawbacks caused by the water that is essential for preparing jelly preparations. In other words, if water is poorly dispersed in a jelly, the water will cause the thin rubber film of the condom body to swell, whiten, and deteriorate; however, NP-10, which has a surfactant effect, can be well dispersed in a jelly. Therefore, the above-mentioned drawbacks can be solved.

Similarly, glycerin and sucrose, which are constituent components of the jelly, also prevent water from migrating to the rubber due to their osmotic pressure, thereby preventing the above-mentioned drawbacks caused by water. Note that gelatin has the function of solidifying into a jelly-like state.

Furthermore, butyl paraoxybenzoate mixed into the jelly in the present invention is used as an antibacterial agent and is effective in preventing vaginitis and sexually transmitted diseases.

Furthermore, the vitamin E mixed into the jelly in the present invention is used as a spermicidal contraceptive for NP-10.
In addition to preventing the oxidation of the condom, it also prevents the deterioration of the thin rubber film that makes up the condom body, resulting in stable spermicidal performance over a long period of time.

〔Example〕

Hereinafter, the present invention will be explained in more detail based on examples.

Example (1) <Components of spermicidal jelly> (Quantity per condom) NP-10...0.04g Jelly...0.39g [Glycerin 50% White sugar 15% Gelatin 1.5% Paraoxybenzoic acid Butyl 0.025% Purified water 33%] Vitamin E (dl-α tocopherol)
...0.00015g Add the ingredients listed above one by one, NP-10,
Stir and mix while adding glycerin, white sugar, gelatin, paraoxybenzoic acid, butyl, purified water, and vitamin E. In this case, if you stir NP-10 and the finished jelly all at once, they tend to separate very easily, but if you stir and mix each component in the order described above, they will mix very uniformly. It can be made into a transparent liquid.

After placing the thus prepared spermicidal jelly in the semen pool on the glans of the rolled-up condom, silicone oil is applied to the condom at appropriate locations by dropping or spraying to form a silicone oil film. Form.

Example (2) Spermicidal jelly of Example (1)...0.29g Silicone oil...0.01g Silicone oil was added to the spermicidal jelly of Example (1) and mixed by stirring. Apply all over the rolled up condom. In this case, the silicone oil separates over time, and a film of silicone oil is naturally formed on the top (surface) of the spermicidal jelly on the inner and outer surfaces of the condom. Therefore, it is not necessary to apply silicone oil as a post-process as in Example (1).

〔Effect of the invention〕

By placing a spermicidal jelly containing NP-10, which has properties as both a spermicide and a surfactant, as its main ingredient in the semen reservoir, it has good contact with semen, and a small amount of spermicidal The drug is very effective. This NP-10 can prevent lubricant whitening and deterioration of the thin rubber film of the condom body due to purified water, which is essential for preparing the jelly.

In addition, the jelly leaves almost no residue on the woman's side, so it does not cause any discomfort, and it also has an antibacterial effect against trichomonas bacteria and gonorrhea in the woman's vagina, making it effective in preventing vaginitis and sexually transmitted diseases. .

Furthermore, due to the action of vitamin E (dl-α tocopherol) contained in the spermicidal jelly of the present invention,
Condom body rubber and jelly, especially
It prevents oxidation of NP-10 ingredients and prevents aging for a long time. In addition to the antioxidant effect of rubber or jelly preparations, this vitamin E has the effect of protecting human mucous membranes and providing nutritional support.

As mentioned above, the spermicidal jelly of the present invention is
It is extremely useful for increasing the added value of condoms.

Claims (1)

[Claims] 1 The main ingredient is polyoxyethylene nonyl phenyl ether, a polyoxyethylene nonionic surfactant, and glycerin, sucrose, gelatin,
A spermicidal jelly prepared by sequentially adding and mixing butyl paraoxybenzoate, purified water, vitamin E, and (dl-α tocopherol) is placed on the entire surface of the condom or in the semen reservoir, and then silicone oil is applied to the appropriate areas of the condom. A spermicidal condom characterized by having a film formed thereon.