JPH0623374B2 - Gel composition containing CFC - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a gel composition containing chlorofluorocarbon having excellent stability and usability.

[Conventional technology]

Conventionally, CFCs have been mostly used as a propellant for aerosol products, and those that are gaseous at room temperature have been mainly used. CFCs that are liquid at room temperature are rarely used.

When chemical-stable and safe skin-friendly CFCs, which are liquid at room temperature, are blended with, for example, makeup cosmetics for summer, it can be expected to have the effects of quick drying, excellent makeup lasting, and a refreshing feeling. .

Also, if chlorofluorocarbon is used in combination with other volatile oil components, for example, products using low polymerization degree cyclic dimethyl polysiloxane, chain dimethyl polysiloxane or isoparaffin,
The volatilization rate can be adjusted freely, and the range of product formulations can be greatly expanded.

[Problems to be solved by the invention]

However, despite the above-mentioned effects being expected, chlorofluorocarbon has never been used because it is very difficult to stabilize the viscosity of chlorofluorocarbon.
Until now, there have been no examples of stably mixing liquid CFCs at room temperature.

[Means for solving problems]

In view of these circumstances, the present inventors have conducted intensive studies on a method for thickening freon, especially freon which is liquid at room temperature, and as a result, blended freon with a specific amount of a specific silicon compound, an organically modified clay mineral and water. As a result, it was found that a gel composition having an arbitrary viscosity and good temporal stability and usability can be obtained, and the present invention has been completed based on this finding.

That is, the present invention is characterized by blending CFCs, one or more polyoxyalkylene-modified organopolysiloxanes represented by the general formula (I), (II) or (III), an organically modified clay mineral and water. And a gel composition containing chlorofluorocarbon.

{In the general formulas (I), (II) and (III), R is a methyl group or a part thereof is a phenyl group, R'is hydrogen or a carbon number of 1 to 12
Alkyl group, p is a number from 1 to 5, q is a number from 2 to 3, x,
m and n are average numbers, and the polyoxyalkylene-modified organopolysiloxane has 2 to 2 polyoxyalkylene groups in the molecule.
The content is 40% by weight and represents a value such that the viscosity of the polyoxyalkylene-modified organopolysiloxane is 5 to 3000 centistokes at 25 ° C. } Hereinafter, the configuration of the present invention will be described in detail.

As the CFC used in the present invention, a conventionally known CFC can be used. Examples thereof include dichloromonofluoromethane, trichloromonofluoromethane, tetrachlorodifluoroethane, trichlorotrifluoroethane, and dibromotetrafluoroethane. One kind or two kinds or more are arbitrarily selected from these.

The compounding amount is usually 1 to 90% by weight based on the total amount of the composition of the present invention.

The polyoxyalkylene-modified organopolysiloxane (hereinafter abbreviated as polyether-modified silicon) used in the present invention is represented by the above general formula (I), (II) or (III). Any one kind or two or more kinds are selected and used.

In order to satisfy the effect consistent with the object of the present invention, that is, the chlorofluorocarbon thickening effect with good stability and usability, the polyether-modified silicone has a polyoxyalkylene group of 2 to 40% by weight based on its molecular weight. It is necessary to contain it in a ratio of 5 and a viscosity of itself at 25 ° C. in the range of 5 to 3000 centigrade. That is, when the ratio of the polyoxyalkylene group to the total weight of the polyether-modified silicon is less than 2% by weight, the thickening effect is not sufficient,
If it exceeds 40% by weight, the stability with time deteriorates. If the viscosity of the polyether-modified silicone is less than 5 centistokes, the thickening effect is not sufficient, and if it exceeds 3000 centistokes, the feeling of use becomes sticky and it is not preferable.

The amount of the polyether-modified silicone compounded in the gel composition of the present invention is selected in the range of 0.1 to 30% by weight, preferably 0.2 to 25% by weight. If it is less than 0.1% by weight, the thickening effect is insufficient and the stability over time is poor. If it exceeds 30% by weight, stickiness may be felt and makeup may be deteriorated.

The organic modified clay mineral used in the present invention is one in which water or an exchangeable cation present between the crystal layers of the clay mineral is replaced with an organic polar compound or an organic cation. For example, dioctadecyldimethylammonium salt modified montmorillonite, octadecyldimethylbenzyl. Examples thereof include ammonium salt-modified montmorillonite and dihexadecylmethyl ammonium salt-modified montmorillonite. One kind or two or more kinds are arbitrarily selected from these.

The blending amount is selected in the range of 0.1 to 15% by weight in the total amount of the gel composition of the present invention, but preferably 0.2 to 10% by weight. If it is less than 0.1% by weight, the thickening effect is insufficient and the stability over time is poor. If it exceeds 15% by weight, spreadability becomes heavy and usability deteriorates.

The amount of water in the present invention is 0.2 to the total amount of the gel composition.
It is selected in the range of 80% by weight, preferably 0.5-60% by weight. If it is less than 0.2% by weight, the thickening effect is insufficient and the stability over time is poor. If it exceeds 80% by weight, the spread becomes heavy, which is not preferable.

In addition to the above-mentioned essential components, the cosmetics to which the flon thickening composition of the present invention is applied may further contain waxes, oils and fats, humectants, pigments, powders, resins, fragrances, preservatives and the like, if necessary.

In addition, adding 0.1 to 10% by weight of lower alcohols such as ethanol and isopropyl alcohol and glycols such as propylene glycol, dipropylene glycol and 1,3-butylene glycol to the total amount of the composition further increases the viscosity and stability. Can be improved.

〔The invention's effect〕

The gel composition containing the chlorofluorocarbon of the present invention is an excellent gel composition having good stability over time, good spreadability and no stickiness in use, and good volatility and refreshing feeling. .

Further, since the viscosity, that is, the fluidity can be freely controlled, it can be used in a wide range such as cosmetics, pharmaceutical bases, automobile waxes, furniture waxes.

〔Example〕

Next, the present invention will be described in more detail with reference to examples. The present invention is not limited thereto. The blending amount is% by weight.

The test methods for the characteristics of the examples and comparative examples are as follows.

(1) Stability A sample was taken in a sample tube, left under each temperature condition, and evaluated by the degree of separation (judgment after 1 month).

Evaluation criteria ○: No separation Δ: About 1/5 separation ×: 2/3 or more separation (2) Viscosity Measured with a Brookfield viscometer (30 ° C).

(3) Stickiness and spread Sensory evaluation by actual use test (20 panelists).

Evaluation criteria ○: No stickiness and light spread.

△: Slightly sticky and spread normally.

X: Sticky and heavy spread.

[Manufacturing Method] was stirred with a homodisper to obtain a muscle fatigue recovery agent.

From the characteristics shown in the table, it is understood that Examples 1, 2, and 3 are excellent in stability over time and usability.

[Production method] was stirred with a homodisper to obtain a summer cream.

It can be seen from the characteristics shown in the table that Examples 4, 5, 6, 7, 8, 9 are excellent in stability over time and usability.

* Pigment composition Titanium dioxide 40% Talc 25 Mica 25 Yellow iron oxide 2.7 Red iron oxide 6.5 Black iron oxide 0.8 [Production method] ~ was stirred with a homodisper to obtain a water resistant foundation.

From the characteristics shown in the table, it is understood that Examples 10, 11 and 12 are excellent in stability over time and usability.

[Manufacturing method] was stirred with a homodisper to obtain a water resistant eye runner.

From the characteristics shown in the table, it is understood that Examples 13, 14, 15, 16 are excellent in stability over time and usability.

[Manufacturing Method] was stirred with a homodisper to obtain a polish cream.

It was confirmed in an actual use test that Example 17 can be used as a polish cream for furniture.

Claims (1)

[Claims] 1. A fluorocarbon liquid 1 to 90% by weight at room temperature, one or more polyoxyalkylene-modified organopolysiloxanes represented by the general formula (I), (II) or (III) 0.1 to 30. % By weight, organically modified clay mineral 0.1-1
A gel composition containing CFCs, characterized in that 5% by weight and 0.2 to 80% by weight of water are blended. {In the general formulas (I), (II) and (III), R is a methyl group or a part thereof is a phenyl group, R'is hydrogen or a carbon number of 1 to 1
2 alkyl groups, p is a number from 1 to 5, q is a number from 2 to 3,
x, m, and n are average numbers, and the polyoxyalkylene-modified organopolysiloxane contains 4 to 40% by weight of polyoxyalkylene groups in the molecule, and the viscosity of the polyoxyalkylene-modified organopolysiloxane is 5 to 30 at 25 ° C.
Represents a value that will be 00 centistokes. }