JPH0496986A - Composition for producing monomolecular film - Google Patents

Abstract

PURPOSE: To provide the subject compsn. containing an org. solvent such as aliphatic hydrocarbon and aromatic hydrocarbon and a specific trichlorosilane compd. in a specific ratio and providing a monomolecular membrane excellent in humidity resistance.

CONSTITUTION: An objective compsn. suitable for producing a monomolecular membrane on the surface of a material of every kind contains 75-100 vol.% of an org. compd. (A) consisting of a 5-16C straight chain saturated hydrocarbon, benzene, toluene, dodecylbenzene, an antistatic dispersant, bicyclohexyl and/or 7-18C straight chain monoamide and 5×10^-5 to 3×10^-2 mol/l of an active compd. (B) represented by the formula; CH₃-(CH₂)_n-SiCl₃ (n is 7-17), the formula; CF₃-(CF₂)_k-(CH₂)₂-SiCl₃ (k is 3, 5, 7 or 11) and or the formula; CF₃-(CF₂)_p-(CH₂)₂- O-C(O)-(CH₂)_g-SiCl₃ (p is 3-10 and g is 4-10).

COPYRIGHT: (C)1992,JPO

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to compositions for producing monomolecular films on the surfaces of various materials, and more particularly, the present invention relates to compositions for producing monolayers on the surfaces of various materials. The present invention relates to the formulation of said composition by depositing onto a stable and transparent monolayer in order to provide a surface with a viscosity and at the same time maintain the appearance of such a surface.

PRIOR ART AND PROBLEM TO BE SOLVED BY THE INVENTION Although several materials are known in the art for treating the surfaces of various materials, imparting surfaces with different properties, none of them possess superhydrophobic properties. There are no known commercial compositions that can provide monomolecular stable and transparent films.

[Covenant means to solve the problem, action and effects of the invention]

The material whose surface is coated with the composition of the present invention is
The following may be mentioned, but are not limited to: Glass. The surface is hydrophobic while retaining its transparency and original stability and, for example, in buildings, window panes treated with the compositions of the invention are easily cleaned. This is because the water drips off completely due to the hydrophobic properties imparted to the glass, and the window glass is completely dry, avoiding the final steps of subsequent washing and drying. It is to be understood that the compositions of the present invention are applicable to flat and curved glasses, powders, fibers, and combinations of these and other materials. Cellulosic materials and their derivatives, such as pulp, paper, base paper, cellophane, esters, synthetic fibers, wood, filters and combinations thereof, as well as cardboard and paper highly repellent to water and moisture. , increasing their lifespan and strength. A similar effect occurs with wood and natural and synthetic cork, which have a high degree of water repellency and extend their life. Pure or impure metals, steels, alloys, and their combinations with other materials, which have high water repellency, are less susceptible to oxidation and corrosion.

Protective coatings that have become highly water repellent thus increase their protective properties for the materials they are coating. Cotton and its derivatives, pure threads, and composites of these with synthetic materials (they have a high degree of water repellency) increase their waterproofness.

Leather, which increases its service life when coated with the composition of the invention. Synthetic polymers such as plastics, elastomers, foam materials, yarns, clothing and filters are
Coating with the composition of the invention reduces cleaning time and increases waterproofing effectiveness.

Clay or ceramic materials, which increase their service life due to the high water repellency provided by the compositions of the invention, and also minerals coated with the compositions of the invention, and structural and insulating materials, which are resistant to moisture attack when coated with the compositions of the invention. Reduce the possibility.

The composition of the invention comprises linear saturated hydrocarbons having 5 to 16 carbon atoms, benzene, toluene, dodecylbenzene, an electrostatic dispersant, bicyclohexyl and linear monoamides having 7 to 18 carbon atoms. 75 to 100% by volume of an organic solvent selected from CH3(CH2), 5I
C13 (where n is 7 to 17), CFI (
CF2) h (CH2) 2 5IC1a (where k is 3°5.7 or 11) and CF3
(CF2) -(CH2)2-0-C(O) -(C
)12L-3it: ]3 (where p is 3 to 10 and 3 is 4 to 10) 5
x10-5 to 3X10-2 mol/p.

In some cases, up to 25% by volume of a stabilizer selected from the group consisting of methylene chloride, chloroform, and carbon tetrachloride may be added, and a catalyst selected from the group consisting of pyridine and acetic acid at 1.0 x 10 -1 mol/l can be added.

The formulation in a preferred embodiment is as follows: organic solvent, 84% by volume of hexadecane; stabilizer, 9% by volume of methylene chloride, 5% by volume of carbon tetrachloride, 2% by volume of chloroform, and active compound, 2 x 10-3 mol. /p n-dodecyltrichlorosilane.

Although one preferred embodiment of the present invention is as described above, it should be understood that many changes and modifications apparent to those skilled in the art are likewise preferred embodiments. Accordingly, the present invention is not limited to what has been described above, but is intended to cover all changes and modifications that fall within the scope of the appended claims.

Claims (1)

[Claims] 1. A composition for producing a monomolecular film on the surface of various materials, which comprises a linear saturated hydrocarbon having 5 to 16 carbon atoms, benzene, toluene, dodecyl. benzene,
Electrostatic dispersants, organic compounds selected from bicyclohexyl and linear monoamides having 7 to 18 carbon atoms 7
5-100% by volume and CH_3-(CH_2)_n-
SiCl_3 (where n is 7 to 17), CF_
3-(CF_2)_k-(CH_2)_2-SiCl_
3 (where k is 3, 5, 7 or 11) and CF_3-(CF_2)_p-(CH_2)_2-O-
C(O)-(CH_2)_g-SiCl_3 (where,
p is 3 to 10 and g is 4 to 10).
-^2 mol/l. 2. The composition of claim 1 further comprising up to 25% by volume of a stabilizer of the group formed by methylene chloride, chloroform and carbon tetrachloride. 3.Additionally 1.0% of a catalyst selected from pyridine and acetic acid
3. A composition according to claim 1 or 2, comprising up to 1 mol/l.