JPH0341949A - Condom - Google Patents

Abstract

PURPOSE: To obtain a strong and high protection effect condom by making a one-end closed tubular condom at a size to cover an erected penis with a rubber-nature, this film into which polyolefin and thermoplastic elastic materials are mixed. CONSTITUTION: This condom is made by heat-sealing two of the same shape sheet with each other and by having a cover to protect the pubic hairs. This condom is made from such an olefin mixture as thermoplastic elastomer consisting of vulcanized polyolefin or thermoplastic elastomer into which low density polyolefin like extremely low density polyethylene is mixed. The protective cover 18 is outward projected at the opening end of the tubular section 16, whose diameter is made to at least 1.5 times the hole diameter of the opening end. The diameter of the cover is more than 51mm. For facilitating an ease of inserting a user's penis into a condom, inside the tubular section 16 is coated with a lubricant. The protective cover protects the user against vaginal liquid and any other liquid 30 is vagina 29 during a coition, and the counter partner of the coition against male's ejaculated semen 32 by shutting out the semen after the semen ejaculation and penis shrinkage.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention has the following features: 1! ! Concerning condoms of elastic thin film material with a stem-shielding cover, the elastic material is formulated with a vulcanized polyolefin plastic elastomer or a low percentage polyolefin, such as ultra-low concentration polystyrene. The present invention relates to a thermoplastic nidistomer condom that is an olefin compound.

[Conventional technology]

Recognizing the importance of sexually transmitted diseases and the need for protection, condoms made of latex material have traditionally been used.

[This is what the invention is trying to solve! For example, it is estimated that about six out of seven latex condom users will contract a sexually transmitted disease because the condom breaks or is used improperly.

The present invention uses an elastic thin film as detailed below.

The purpose is to provide a condom that reduces the risk of sexually transmitted diseases and provides strong prevention. This is especially desirable in view of the seriousness of diseases such as AIDS, herpes (chest pain), syphilis, gonorrhea, chlamydiosis, and other sexually transmitted diseases.

Another disadvantage of latex condoms is that they tend to slip off the penis when it shrinks after ejaculation. When this happens, you are at risk for pregnancy and sexually transmitted disease transmission.

The vagina is an ideal incubator for all kinds of sexually transmitted disease germs, so contact with vaginal fluids should be avoided.Regular condoms do not have a waterproof seal at the base and do not cover the pubic area where sexually transmitted diseases can be transmitted. is not protected.

Also, latex condoms can tear during intercourse. Additionally, latex condoms must be stored under ideal conditions, such as not being exposed to extremely high or low temperatures.

On the other hand, condoms using the plastic material of the present invention are an alternative to latex and an improved product. The thin film material of the condom of the present invention is latex.
Products such as oil-based sherry, which have a dramatic effect on condoms, cannot be affected.

Also, latex and rubber condoms have a short shelf life and are prone to brittleness and friction, whereas condoms made of plastic material do not have these concerns.

Due to the properties of plastic, the present invention is lightweight, extremely strong, durable, and has a good look and feel.
The product of the invention has chemical resistance and good physical properties, is suitable for mass production, and is inexpensive compared to latex.

SUMMARY OF THE INVENTION One object of the present invention is to provide a double-walled, elastic membrane, cylindrical condom, closed at one end and open at the other end, and sized to cover the user's penis. Preferably, this condom is provided with a pubic hair cover for protecting the base of the penis, and the pubic hair cover is preferably adhered to the user's body with an adhesive during sexual intercourse.

It is also a general object of the present invention to be inexpensive to manufacture, avoid the transmission of sexually transmitted diseases, ideal for the current environment of sexually transmitted diseases, strong and durable, and easy to use. , to provide an improved condom that does not interfere with sexual sensation.

[Means for Solving the Problems] According to the present invention, the above-mentioned problems are solved by providing a condom made of a thin rubber film material, which has a cylinder having an open end and a closed end sized to receive an erect penis. The problem is solved by the fact that the material has a polyolefin material and a thermoplastic elastic material.

In the present invention, it is desirable to do the following.

(1) The polyolefin material is a low density polymer.

(2) The polyolefin material is low density polyethylene.

(3) The polyolefin thin film material is a linear low density polyethylene material with a melt index of about 2, which is a measure of molecular weight and indicates the flowability of the material at specific temperature conditions.

(4) A condom of rubber trade thin film material, consisting of a blend of vulcanized polyolefin thermoplastic elastomer.

(5) The condom according to claim (1), wherein the thin film material is an olefin obtained by blending a thermoplastic elastomer with a low percentage polyolefin made of co-boria that can be chain-polymerized with other polymer molecules.

(6) The thin film material is an olefin obtained by vulcanizing and blending a thermoplastic elastomer and a low percentage polyolefin.

(7) A pubic hair protection cover that protrudes outward in a circular shape is provided near the opening end.

(8) The protective cover has an outer surface and an inner surface, and an adhesive material is applied to the inner surface.

(9) A pair of sheets of the same type of thin film material are thermally welded at their peripheral edges and formed into a cylindrical shape.

(10) A pair of sheets of the same type of thin film material are thermally welded at their peripheral edges and formed into a cylindrical shape.

[For production]

A strong and highly protective condom is constructed by constructing a cylindrical condom with one end closed, sized to cover an erect penis, and a thin rubber film containing a polyolefin material and a thermoplastic elastic material. .

In addition, by attaching a circular protective cover to the open end of the cylindrical condom to cover the male wearer's pubic hair, body fluids of both sexes are completely prevented from mixing. , and the condom is prevented from falling off and getting entangled with the inner wall of the vagina when the penis shrinks after one act.

〔Example〕

1 and 2 are diagrams showing one embodiment of the present invention. FIG. 3 is a diagram showing a state in which a condom is rolled up. It is packaged in a folded form similar to, for example, surgical gloves. Condoms should preferably be provided in three sizes: large, medium and small.

In each drawing, the same parts are designated by the same reference numerals.

The thin film in the present invention is a thermoplastic elastomer.

- The elastomer inside the shell is a rubbery material that can be stretched from its original length and returns to its original length when the force is released. As such elastomers,
Styrene-butadiene, polybutadiene, neoprene,
There are synthetic polymers including butyl, polyisoprene, nitrile and ethylene-polyprene rubber.

The thin film of the present invention includes a polyolefin, a polymer-containing term of ethylene, an alkyl derivative of ethylene (a-olefin), and dienes. Preferably, the membrane comprises polyethylene, a whitish transparent polymer having medium strength and high tenacity.

Its physical properties vary significantly depending on the degree of crystallinity and the size and distribution of crystalline regions. The density of the product increases due to the increase in the degree of crystallinity.

0.910-0.925 or 0.926-0.94
It has a density such as 0, which is classified as low density or very low density by trade grade.

As the density increases, the product generally becomes harder.

Higher softening temperature and enhanced resistance to liquid and gas infiltration. On the other hand, the resistance to tearing, impact and cracking stress is slightly reduced.

Ethylene is mass-produced by fractionating the fatty hydrocarbons contained in 1 petroleum. Catalytic dehydration of ethanol is convenient for producing small amounts of monomer.

A type of low-density polymer (low-density polyethylene) is produced by processing high-purity ethylene at a temperature of about 150 to 250 °C in an atmosphere in the presence of a very small amount of oxygen or organic peroxide. 461kg/a# (20,000
It is produced by polymerization at a pressure of ~35.000 p, s, i,). High reaction temperatures produce the lowest density polymers, while lower reaction temperatures produce denser products.

A second type of low density polymer (Type IiA low density polyethylene) is made by the polymerization of ethylene and a-olefins. The softening temperature for low density materials is.

The maximum temperature in continuous use is 75°C.

Various types of polyethylene can be produced using a number of standard methods,
For example, extrusion, blow molding (for thin films).

It can be molded by methods such as rotation and injection molding. For thin film extrusion and blow molding.

Those with high molecular weights are suitable, while those with low molecular weights are suitable for injection molding.

For the same density and low shear stress viscosity at melting, linear low density polyethylene resins have higher melting points, lower strength, hardness, stretchability to break,
It is known that the resistance to cracking stress shows a high value.

The membrane applied to the condom of the invention is preferably linear low density polyethylene having a melting index of about 2. Melting index is a measurement of one molecular weight, and is a measurement of the amount of heated material that flows down a faucet in 10 minutes. This material has advantageous tensile properties compared to conventional products using latex materials.

In a preferred embodiment, the membrane is a blend of a vulcanized polyolefin thermoplastic elastomer or an olefin blend of a thermoplastic diystomer blended with a low percentage of polypropylene, such as low density polyethylene. The thin film exhibits a feel and flexibility similar to latex rubber, while maintaining high tensile properties.

By incorporating polyolefins into thermoplastic elastomers, impact and burst resistance is significantly enhanced. This is an important property for use in condoms.

Thermoplastic nidistomers have also been shown to soften polyolefins, making them more comfortable to use.

Preferably, two sheets of the same size are heat-welded and used. In summary, the membranes of the present invention incorporate thermoplastic nidistomers to mimic the properties of conventional latex condoms.

The thin films of the present invention are about 1 to 2 mils (0.025 to 0.000 mm).
05°). The thin film for manufacturing condoms is manufactured by E.E.
E. duPont da Nemours (Tilmington, Praue, USA) and Exon
) (New Chassis, USA).

FIG. 1 shows a condom (14) of the present invention being used by a user (1).
2) shows the state in which it is installed. Condom (14).

It has a cylindrical portion (16) shown in FIG. This cylindrical part has a rounded and closed distal part, and has a small diameter liquid receiving part at the end thereof.

In addition, as shown in Fig. 3 in a rolled up state,
The condom is equipped with a pubic hair protection cover (18). FIG. 3 shows the condom (14) rolled up, and FIG. 2 shows the condom stretched out.

Figure 1 shows condom A attached to a male user (12).
(14), this figure shows the pubic hair protection cover (18).
) has been shown to protect the user's pubic hair. The cylindrical part (16) has an open end for inserting the penis (25) into the recessed hole (24). Preferably, a lubricant such as that sold under the name K.Y. Shelly is applied to the tube (
16) on the outer surface and, if necessary, on the inner surface.

In a preferred embodiment, the condom is comprised of two identical sheets heat welded together and provided with a cover to protect the pubic hair area.

The condom is made of a vulcanized polyolefin thermoplastic elastomer as described above or an olefin blend of a thermoplastic elastomer with a low percentage of polyolefin such as very low density polyethylene.

The protective cover (18) projects outwardly from the open end of the cylindrical portion (16), and has a diameter that is at least one diameter of the hole at the entrance end.
．． 5 times. The diameter of the cover is preferably 51ai (2.5 inches) or more.

In order to make it easier for the user to insert the penis, a cylindrical part (16
) Apply lubricant to the inner surface of the

The protective cover protects the user from vaginal fluids and other fluids (30) in the vagina (29) during sexual intercourse, and also blocks the semen after ejaculation and the penis atrophies, thereby protecting the male partner from the act. It is trusted to protect against semen (32).

The conventional condom (16') shown in Fig. 5 gets entangled with the inner wall of the vagina (29') when the penis is atrophied.
The male semen (32'') is no longer able to function as a barrier, the penis (25'') atrophies and the cylindrical part (18') becomes entangled with the inner surface of the vagina (29'). It will mix with vaginal fluid at these points.

Use of the condom of the present invention prevents the penis and vagina from being exposed to infectious agents during and after sexual intercourse, especially after ejaculation.

The adhesive (20) is applied in a ring to the outer edge of the cover, covering the adhesive with a transparent liner, designated by the same reference numeral (20).

It is preferable that the adhesive be one that can be peeled off from the body without causing pain.One such adhesive is called "skin glue," which is made of acrylic ester or acrylic acid. It is a co-polymer of

This adhesive is painless upon removal.

The use of the thin film materials described above results in condoms that are transparent, water resistant, airtight, impermeable to germs, bacteria, or viruses, relatively thin, and yet strong. During the manufacture of condoms, fibrous materials can be applied, especially for reinforcing and strengthening the tubular part.

When using this condom, the penis never comes into contact with vaginal secretions containing infectious organic matter.The thin film has a greater tensile strength than a latex film, and considerably greater forces are not applied. Unless.

It won't break.

Some kava, for example, are manufactured by Johnson and Johnson (Brunswick, New Chassis, USA) in the form of "First Aid Adhesive".
It is attached to the pubic area using a painless adhesive such as esiva) J to protect the male genitals.

Thin film materials are less expensive than latex and are in abundant supply. In addition, thin film materials have a longer shelf life and do not require strict storage conditions compared to traditional latex condoms. Passage can be prevented.

Furthermore, the tubular part of the condom is coated with commercially available K.Y. Sherry on the inside, outside, or both sides before use, providing at least the same sexual sensation as a latex condom. The sherry is packaged in a small aluminum bag and attached to the condom.

Three types of condoms are available: large, medium, and small. The pubic hair protection cover is disc-shaped with a diameter of approximately 13 m (5 inches) and forms part of the condom.

It is preferable that the liner covering the adhesive be easily removable.

It is well known that there are many homosexual men among many people, and strong condoms are effective in protecting such people. In this case, it is not necessarily necessary to adhere the pubic hair protection cover to the body, but it is preferable to do so.

Although the above description describes a preferred embodiment of the present invention, the present invention is not limited to the above-mentioned content, and includes obvious modifications and applications, and the essence of the present invention is , should be understood based on the claims.

[Brief explanation of drawings]

FIG. 1 is a front view of a human body wearing a condom according to an embodiment of the present invention. FIG. 2 is a front view showing the condom before use, FIG. 3 is a front view showing the condom rolled up, and FIG. 4 is a central cross-sectional view showing the condom in use. FIG. 5 is a central cross-sectional view illustrating the problems encountered with conventional pubic coverless condoms. (12) User (14) Condom (16)
Cylindrical part (20) Adhesive (25) Penis (30) Vaginal fluid (18) Pubic hair protection cover (24) Open end (29) Vagina (32) Semen Fxr, 3

Claims (13)

[Claims] (1) A condom made of a thin rubber film material, which has a cylindrical shape with an open end and a closed end sized to receive an erect penis, and the material includes a polyolefin material and a thermoplastic elastic material. A condom that is a compound. (2) The condom of claim (1), wherein the polyolefin material is a low density polymer. (3) The condom according to claim (2), wherein the polyolefin material is low density polyethylene. (4) The polyolefin thin film material is a linear low-density polyethylene material having a melting index of about 2, which is a measurement of molecular weight and indicates the fluidity of the material under specific temperature conditions. condom. (5) A condom made of a rubbery thin film material, the condom comprising a blend of vulcanized polyolefin thermoplastic elastomer. (6) Claim (1) wherein the thin film material is an olefin in which a thermoplastic elastomer is blended with a low percentage polyolefin made of a copolymer that can be chain-polymerized with other polymer molecules.
Condom as described. (7) Claim (1) wherein the thin film material is an olefin obtained by vulcanizing and blending a thermoplastic elastomer and a low percentage polyolefin.
) Condoms listed. (8) The condom according to claim (7), wherein the polyolefin is low density polyethylene. (9) The condom according to claim (1), further comprising a pubic hair protection cover protruding outward in a circular shape near the opening end. (10) The condom according to claim (9), wherein the protective cover has an outer surface and an inner surface, and an adhesive material is applied to the inner surface. (11) The condom according to claim (1), wherein a pair of sheets of the same type of thin film material are thermally welded at their peripheral edges and formed into a cylindrical shape. (12) The condom according to claim (9), wherein a pair of sheets of the same type of thin film material are thermally welded at their peripheral edges and formed into a cylindrical shape. (13) The condom according to claim (9), further comprising a pubic hair protection cover that protrudes outward in a circular shape near the opening end.