JPH06165796A - Condom coated with lubricant - Google Patents

Abstract

PURPOSE:To meet the requirements for improving a condom lubricant based on silicone oil which yet won't be washed off easily, if it contaminates clothing, and does not allow formulation of a sperm killing agent easily, with other disadvantages such as seen in a water-soluble lubricant which whitens the condom and becomes solid easily at a low temperature, permitting its easy use and further, becomes sticky. CONSTITUTION:A water-soluble lubricant-applied condom is developed that is less sticky compared with a conventional type condom, due to the application of dl-pyrolidone carboxylates which has humectant property, low viscosity and low temperature stability.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to a condom coated with a novel lubricant composition.

[0002]

2. Description of the Related Art Currently, there are condoms already coated with a lubricant, but the present situation is that they are not always satisfactory in terms of touch, transparency, feeling of use and the like. That is, the mainstream of what has been used as a conventional condom lubricant is silicone oil, which has been applied to or attached to a condom. However, since silicone oil is oily, anything on the body or clothes must be washed with soap many times before use. There are various other water-soluble lubricants, but when they are applied to condoms, most of them tend to become cloudy due to water absorption and swelling, which reduces their commercial value. In addition, condoms have become international, from rural areas to cold regions. It must be usable widely in any area. In particular, conventional water-soluble lubricants cannot withstand use in low temperature regions (below -25 ° C). That is, there are drawbacks such that the lubricant solidifies and has a high viscosity, which makes it difficult to unwind the condom. Incidentally, as a recent tendency of the younger layer, a lubricant that is not so sticky is preferred, and it must be kept in a smooth state. Also spermicide,
Condoms coated with fragrances, germicides, and flavoring agents have also been demanded, and improvements in water-soluble lubricants have been actively made, but none of them are satisfactory yet.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a condom which has a good feel, transparency, and usability, and can easily be removed even when it adheres to the body or clothing, and does not cloud the condom due to water absorption or swelling. In addition, a condom with high commercial value coated with a lubricant composition for condoms that can be used throughout the year even in low temperature regions and can also add spermicides, fragrances, bactericides, seasonings, and preservatives To do.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the means is to retain the water-soluble salts of dl-pyrrolidonecarboxylic acid, which are easily absorbed into the skin, with low moisturizing properties, low viscosity and low temperature stability. The invention has been completed by utilizing sex.

[0005]

The present invention relates to a lubricant for condoms,
The present invention relates to a condom coated with a lubricant composition for a condom, which comprises one or more selected from salts of dl-pyrrolidonecarboxylic acid as an essential component. Hereinafter, the configuration of the present invention will be described in detail.
As used in the previous term, the mainstream of what is used as a lubricant for condoms is silicone oil, and since it is oily, it cannot be removed unless it is adhered to the body or clothing repeatedly and repeatedly with soap. Various water-soluble lubricants have been proposed, but when applied to a condom, the condom becomes cloudy due to water absorption and swelling, which lowers the commercial value. In addition, condoms are now becoming international and must be usable in all regions, ranging from hot to cold regions. In particular, conventional water-soluble lubricants cannot withstand use in low temperature regions (below -25 ° C). That is, the lubricant solidifies or becomes highly viscous, making it difficult to unwind the condom. As a recent trend,
A greasy lubricant is disliked because it sticks to the hands and surroundings, and a smooth product is now desired. Furthermore, there are increasing demands for condoms coated with spermicides, fragrances, bactericides, and seasonings at the same time. The present inventor has conducted diligent research in order to solve these drawbacks, avoids oily substances, is water-soluble and easily adapts to the skin, and has moisturizing properties, low viscosity properties, and low temperature stability of salts of dl-pyrrolidone carboxylic acid. This invention was completed by paying attention to and repeating examination. That is, it is well known that salts of dl-pyrrolidonecarboxylic acid have a moisturizing effect similar to glycerin, but conventional condom lubricants using glycerin as a moisturizer have a moisture content of 40% (25 ° C. humidity at most). 65%)
Although it was the limit to retain it, when used in combination with the salt of dl-pyrrolidonecarboxylic acid, the water content was 45% (25 ° C, humidity 65 ° C).
It became possible to own up to (%). Especially d
Sodium l-pyrrolidonecarboxylate is 60% alone
It was able to retain as much water (at 25 ° C and 65% humidity). Therefore, it was possible to finish the water-soluble lubricant, which was conventionally sticky, into a smooth one. Furthermore, since salts of dl-pyrrolidonecarboxylic acid are more fluid than glycerin even at low temperatures of -30 ° C, those used in combination with glycerin can be used at temperatures lower than conventional temperatures (-25 ° C or lower). We were able to make a possible condom lubricant. Further, since it dissolves in water, it is possible to add a proper amount of a spermicidal agent, a flavoring agent, a bactericidal agent, and a flavoring agent. As a bactericide, a Hibitene gluconate solution, an iodine agent, etc. can also be used. By doing so, a condom coated with the novel lubricant composition for a condom, which solves all the drawbacks of the conventional condom coated with a lubricant, is completed. In addition, sorbitol, maltitol, carboxymethyl cellulose, other water-soluble moisturizers, polysaccharides, and other substances that do not harm the human body can be added to the lubricant composition for a condom.

[0006]

EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to the examples themselves.

Example 1 Sodium dl-pyrrolidonecarboxylate (50% aqueous solution) (manufactured by Ajinomoto Co., Inc.) was allowed to stand at room temperature of 25 ° C. and humidity of 65% for 24 hours to obtain a lubricant composition for condoms. . By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

Example 2 100 parts of sodium dl-pyrrolidonecarboxylate (50% aqueous solution) (manufactured by Ajinomoto Co., Inc.) was weighed, 50 parts of glycerin was added thereto, and the mixture was stirred uniformly and left standing at room temperature for 24 hours. A lubricant composition for a condom was obtained. By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

Example 3 To 1 part of sodium dl-pyrrolidonecarboxylate (50% aqueous solution) (manufactured by Ajinomoto Co., Inc.) was added 1 part of 70% sorbitol solution (manufactured by Kanto Kagaku Co., Ltd.), and the mixture was stirred uniformly and further. 1 part of glycerin was added and stirred, and left at room temperature for 24 hours to obtain a lubricant composition for condom.
By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

Example 4 100 parts of sodium dl-pyrrolidone carboxylate (50% aqueous solution) (manufactured by Ajinomoto Co., Inc.) was weighed, 50 parts of glycerin was added thereto, and the mixture was stirred uniformly and further, a spermicidal agent polyoxyethylene nonyl. 1 of phenyl ether (nonoxynol 9) (manufactured by Nikko Chemicals Co., Ltd.)
0 part was weighed and added, stirred uniformly, and left at room temperature for 24 hours to obtain a lubricant composition for a condom. By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

Example 5 600 parts of sodium dl-pyrrolidonecarboxylate (50% aqueous solution) (manufactured by Ajinomoto Co., Inc.) was weighed, 300 parts of glycerin was added thereto and stirred uniformly,
Furthermore, a solution prepared by dissolving 1 part of 1-menthol, which is also a flavor and a flavoring agent, in 9 parts of ethyl alcohol was added and stirred uniformly, and left at room temperature for 24 hours to obtain a lubricant composition for a condom. By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

Example 6 50 parts of sodium dl-pyrrolidonecarboxylate (50% aqueous solution) (manufactured by Ajinomoto Co., Inc.) was weighed, 25 parts of dl-pyrrolidonecarboxylic acid triethanolamine was added, and 25 parts of distilled water was further added. Then, 50 parts of glycerin was added, and the mixture was stirred uniformly and allowed to stand at room temperature for 24 hours to obtain a lubricant composition for a condom. By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

[Example 7] 250 parts of sodium dl-pyrrolidonecarboxylate (50% aqueous solution) (manufactured by Ajinomoto Co., Inc.) was weighed, and a bactericidal disinfectant 5% Hibitene solution (Sumitomo Pharmaceutical Co., Ltd.)
1 part) was added and stirred uniformly, and the temperature was 25 ° C and the humidity was 6
It was left at room temperature of 5% for 24 hours to obtain a lubricant composition for condom. By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

Example 8 50 parts of dl-pyrrolidonecarboxylic acid triethanolamine (manufactured by Ajinomoto Co., Inc.) was weighed, 50 parts of distilled water was added thereto, and the mixture was stirred uniformly, and further glycerin 5 was added.
0 part was added, the mixture was stirred uniformly, and allowed to stand at room temperature for 24 hours to obtain a lubricant composition for condom. By applying this composition to the entire front and back surfaces of a condom, a condom coated with the same composition was obtained.

[0007]

The lubricant composition of the condom coated with the lubricant of the present invention is water-soluble, unlike oil-based ones such as silicone oil, so that it can be easily washed off even if it adheres to the body or clothes. It can be used, works well as a lubricant, has a smooth surface, has excellent touch and transparency, and is water-soluble so that it does not feel uncomfortable to the body. Furthermore, it can withstand use even in low temperature regions, and can mix spermicidal agents, fragrances, bactericides, and flavoring agents in appropriate amounts to meet international demand. Moreover, the condom coated with the same composition did not become cloudy even after long-term storage, and a condom with high commercial value could be obtained.

Claims (3)

[Claims] 1. A condom coated with a lubricant composition for a condom, which comprises as an essential component one or more selected from salts of dl-pyrrolidonecarboxylic acid. 2. A condom in which the lubricant composition for a condom according to claim 1 is further coated with a lubricant composition for a condom, which is obtained by mixing glycerin and / or sorbitol. 3. A condom comprising the lubricant composition for a condom according to claim 1 or 2 to which one or more components selected from spermicidal agents, fragrances, bactericides, and seasonings are added. A condom coated with a lubricant composition.