JPH03184539A - Lubricating agent for condom - Google Patents

Abstract

PURPOSE:To obtain a lubricating agent without smell, accidental permeation, swelling and the like with limited deterioration in a condom along with excellent lubricating effect by dissolving polyacrylamide into a small amount of water to be mixed with glycerin. CONSTITUTION:An amount of water for dissolving polyacrylamide is reduced and glycerin is mixed for adjustment of viscosity to obtain a lubricating agent. The viscosity made higher with a reduction in the amount of water for dissolving polyacrylamide is adjusted by glycerin to prevent accidental permeation of a condom allowing the checking the lowering of physical characteristic. Water herein used is a refined water to dissolve polyacrylamide and the amount of water is preferably small with 10-30% of the total. The polyacrylamide herein used is a nonionic high polymer agglutinant using acrylamide (monomer) as a raw material and the viscosity of a solution can be changed by varying the density thereof. It is added at a rate of about 0.2-0.5%. The content of the glycerin is 70-90% and 0.05-0.10% of methylparaben and 0.01-0.03% of propylparaben are added thereto.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a lubricant used in condoms,
More specifically, it is a water-soluble lubricant.

<Prior Art and Problems> The mainstream of conventional condoms is silicone oil, which is applied to condoms to prevent adhesion. However, these were smooth and not sticky, and were not satisfactory.

In addition, some water-soluble lubricants are applied directly to the genital area, but these cannot be applied to condoms because the condoms devitrify due to water absorption and their physical properties deteriorate. Ta.

<Means for Solving the Problems> The present invention has been made in view of the above circumstances, and
The solution was to reduce the amount of water used to dissolve the polyacrylamide and mix glycerin to adjust the viscosity to create a lubricant.

<Function> By adjusting the viscosity, which has increased due to the reduction in the amount of water in which polyacrylamide is dissolved, with glycerin, it is possible to prevent devitrification of the condom and suppress a decline in physical properties.

<Example> To explain an example of the present invention, a condom is molded by a method well known in the technical field of manufacturing, and it is attached to the condom to impart lubricity, and polyacrylamide is added to water. This is mixed and stirred with glycerin in which powdered methylparaben and finely crushed propylparaben, which act as preservatives, are dissolved.

Purified water is used to dissolve the polyacrylamide, and the amount of water is preferably 10 to 30% of the total, preferably a small amount.
Polyacrylamide is a nonionic polymer flocculant made from acrylamide (monomer), and the solution viscosity can be changed by changing its concentration.
Add approximately 0.2 to 0.5%.

Glycerin is well known in the chemical field, and is the main component at 70-90%, with 0.05-0.10% methylparaben and 0.0% propylparaben as preservatives.
01-0.03% is added.

Next, specific embodiments are shown: Purified water 10 Polyacrylamide *l) 0.2 Glycerin
89.7 Methylparaben
Q, I) 75propylparaben Q,
(125*1) Acoflock made by Mitsui Suiana Mitsud ■
100 First, polyacrylamide is added little by little to purified water and stirred for 20 to 30 minutes to dissolve. Next, 65-70°
Finely crushed granular propylparaben and powdered methylparaben are added little by little to the glycerin soaked in bathtub C, and stirred for about 1 hour. This is added little by little to the purified water in which the polyacrylamide can be dissolved while stirring. Leave it overnight because bubbles will appear when stirring. Colorless and transparent, viscosity is 1100CP, pH is 6.
78 solutions.

<Deterioration (physical properties) test for condom rubber> The upper row in the table is an untreated condom, and the lower row is a condom treated with the lubricant of the example.

<Effects> The present invention suppresses the amount of water that dissolves polyacrylamide and mixes it with glycerin to adjust the viscosity, so it exhibits an excellent lubricating effect, has less deterioration phenomena on condoms, and is free from odor and devitrification. Since it does not cause any phenomenon or swelling, it can provide an excellent lubricant.

Special permission Out wish Man O mosquito Mo To Co., Ltd. teenager Reason Man early of Government given name hand Continued Supplementary Positive book March 13, 1990 condom lubricant Heisei Year Month Day The table on page 5 of the specification is amended as shown in the attached sheet.

110C

Claims (1)

[Claims] A condom lubricant made by dissolving polyacrylamide in a small amount of water and mixing it with glycerin.