JP4932181B2 - Aqueous shampoo and water repellent coating composition - Google Patents

Description

  The present invention relates to a water-based shampoo and water-repellent coating composition used for pretreatment for washing and drying a hard surface such as the surface of a hard substrate, especially a surface of a vehicle body such as an automobile or a window glass.

Until now, it has been common for car wash and waxing for automobiles to be shampooed with a surfactant, washed with water, and then coated with a wax or water repellent coat.
As shampoos, anionic surfactants, nonionic surfactants, and detergents using amphoteric surfactants are often used.
As the water repellent, a wax agent obtained by solubilizing a wax component using a cationic surfactant or a solubilized product using a nonionic surfactant of amino-modified silicone has been used.
Various glossing agents using a silicone compound are known. For example, a silicone emulsion obtained by emulsifying dimethylpolysiloxane with various surfactants and adding a wax, a fluororesin or the like (see Patent Documents 1 to 4), or a coating film in which an alkyl-modified silicone and a higher alcohol are dissolved in a solvent A water-repellent gloss remover (see Patent Document 5) has been proposed.
In addition, a water-repellent glossing agent using silicone modified with alkyl or polyether (see Patent Documents 6 and 7) has also been proposed.
In addition, amino-modified silicones are known to be used in water-repellent coats because they are weakly acidic and easily dissolved in water and easy to handle (see Patent Documents 8 and 9).
A combined type of amino-modified silicone and dimethylpolysiloxane has also been proposed as improving water repellency and glossiness (see Patent Documents 10 to 12).
The methods of Patent Documents 1 to 12 do not use a gate-type car wash machine, but are conventional general water-repellent methods by hand.
It is also known to use a portal type car wash machine to gloss with a silicone compound (see Patent Documents 13 and 14).
In addition, it has been proposed to stabilize a silicone compound as a wax liquid with a solvent and apply water as a diluent during use as a water repellent and glossy finish using a portal type car wash machine (see Patent Document 15). ).
In addition, a shampoo wax that can be easily treated with a single liquid by blending a wax component with a surfactant has been proposed (see Patent Documents 16 to 18). Effect is not exhibited.
In addition, there has also been proposed a water-repellent coat blended with a surfactant, which is simply processed with a single solution and quickly finished (see Patent Documents 19 and 20).
However, when a water-repellent coating is used that is solubilized with an amino-modified silicone nonionic surfactant, snakes and spots called snakes are generated on the painted surface and cannot be removed.

JP 07-053922 A (Claims and others) JP 07-097549 A (claims and others) JP 07-305033 A (Claims and others) JP 09-208888 A (Claims and others) JP 08-089442 A (Claims and others) JP 2000-239656 A (Claims and others) JP 2003-026922 A (Claims and others) JP 2001-294892 A (Claims and others) JP 2003-020444 A (Claims and others) JP-A-11-050048 (Claims and others) JP-A-11-080668 (Claims and others) JP 2002-294158 A (Claims and others) JP 63-227680 A (Claims and others) Japanese Patent Laid-Open No. 02-008252 (claims and others) JP 09-207727 (Claims and others) JP-A-11-315279 (Claims and others) JP 2002-241704 A (Claims and others) JP 2004-339305 A (Claims and others) JP 2004-123875 A (Claims and others) JP 2004-315665 A (Claims and others)

  Under such circumstances, the object of the present invention is to provide excellent water repellency by applying a hard surface to a surface of a vehicle such as an automobile before washing with water to wash the dirt with one liquid and then washing with water. It is an object of the present invention to provide an aqueous shampoo and water repellent coating composition.

  The present inventors have conducted various studies on a cleaning and water repellent coating composition, especially a vehicle body cleaning and water repellent coating composition. As a result, amino-modified silicones, nonionic surfactants, The present inventors have found that the above-mentioned problems can be achieved by using at least one selected from alcohols, monosaccharides and oligosaccharides in combination, and have reached the present invention based on this finding.

That is, the present invention is as follows.
(1) Aqueous shampoo and water repellent, comprising (A) amino-modified silicone, (B) nonionic surfactant, and (C) at least one selected from monosaccharides and oligosaccharides Coat composition.
(2) (A) 0.1 to 5 parts by mass of amino-modified silicone, (B) 2 to 10 parts by mass of nonionic surfactant and (C) at least one selected from monosaccharides and oligosaccharides 3 A water-based shampoo and water-repellent coating composition characterized by containing ~ 20 parts by mass.
(3) The composition according to the above (1) or (2), wherein the component (A) has an amino equivalent of 800 to 3000 and a kinematic viscosity of 350 to 3000 cSt.
(4) Component (B) is at least one selected from alkyl ether alkylene oxide adducts, higher fatty acid alkylene oxide adducts, sorbitan fatty acid ester alkylene oxide adducts, alkylamine oxides and alkylamidopropylamine oxides. The composition according to any one of (1) to (3).
(5) The composition according to any one of (1) to (4), wherein the component (C) is at least one selected from glucose, galactose, maltose, saccharose, and lactose.
(6) The composition according to any one of (1) to (5), wherein the composition is used for cleaning and water-repellent finishing, and can be washed and water-repellent with a single solution.
(7) The composition according to any one of (1) to (6), wherein the composition is for vehicles, aircraft or ships.
(8) The composition according to any one of (1) to (7), which is used in application by a spray gun or in a car wash.
(9) The composition according to any one of (1) to (8), which is used in car washing by a car wash machine.
(10) The composition according to (9), wherein the car wash is a gate type car wash or a spray car wash.

  The amino-modified silicone used as the component (A) in the composition of the present invention has an amino equivalent of 800 to 3000, preferably 900 to 2500, more preferably 1000 to 2000, and a kinematic viscosity of 350 to 3000 cSt, preferably 500. ˜2500 cSt, more preferably 800-2000 cSt.

The nonionic surfactant used as the component (B) is not particularly limited, but is preferably an alkyl ether alkylene oxide adduct such as an alkyl ether ethylene oxide adduct, an alkyl ether ethylene oxide / propylene oxide adduct, or a polyoxyalkylene alkyl. Ether, higher fatty acid ethylene oxide adduct, higher fatty acid alkylene oxide adduct such as higher fatty acid ethylene oxide / propylene oxide adduct, sorbitan fatty acid ester ethylene oxide adduct, sorbitan fatty acid ester ethylene oxide / propylene oxide adduct, etc. Examples include adducts or polyoxyalkylene sorbitan fatty acid esters, and other fatty acid diethanolamides. Alkylolamides, alkylamine oxides such as lauryl dimethyl amine oxide and dihydroxyethyl lauryl amine oxide, polyoxyethylene fatty acid esters, sorbitan fatty acid esters, and polyoxyethylene alkyl amines.
Examples of commercially available nonionic surfactants include Neugen ET135, Neugen ET149, Neugen ET170, Neugen LP180, Neugen SD100, Neugen TDS80, Neugen ES149, Sorgen TW20, Epan 740, manufactured by Daiichi Kogyo Seiyaku Co., Ltd. Diamond 300 etc. are mentioned.
One of these surfactants may be used, or two or more thereof may be used in combination.

As the component (C), polyhydric alcohols, monosaccharides or oligosaccharides are used. As the oligosaccharides, disaccharides are preferable. Specifically, as the component (C), glucose, galactose, maltose, saccharose, lactose, sorbitol, ethylene Examples include glycol, diethylene glycol, propylene glycol, and glycerin.
These may be used alone or in combination of two or more.

In the composition of the present invention, the relationship of the amounts used between the components (A), (B), and (C) is, on a mass basis, 0.1 to 5 parts of (A) component, 2 to 2 of (B) component. 10 parts, (C) component 3-20 parts, that is, (A) component 0.1-5 parts by mass, (B) component 2-10 parts by mass, (C) component 3-20 parts by mass. It is preferable to do so.
Deviating from the range of the amount of each component used in such a preferred relationship causes the following problems.
That is, when the component (A) is less than 0.1 parts by mass, the effect of addition is not sufficiently exhibited, and when it exceeds 5 parts by mass, snakeing occurs.
Further, when the component (B) is less than 2 parts by mass, the effect of addition is not sufficiently exhibited, and when it exceeds 10 parts by mass, the water repellency is not good.
Further, when the component (C) is less than 3 parts by mass, snakeing with respect to the component (A) is not generated, or foaming properties with respect to the component (B) are not sufficiently exhibited, and when it exceeds 20 parts by mass, the water repellency is good. Disappear.
Within such a suitable range, the component (A) is further in the range of 0.5 to 4.5 parts by mass, the component (B) is in the range of 3 to 9 parts by mass, and the component (C) is in the range of 5 to 15 parts by mass. It is good to choose.

The composition of the present invention further contains water, and the amount thereof may be appropriately changed according to the purpose of use, etc., but it is preferable to occupy the remaining amount with respect to the total amount of the above components. .
The composition of the present invention is preferably prepared so that the concentration of the active ingredient is about 0.02 to 5% by mass, although it depends on the type of the active ingredient. The composition of the present invention practically uses a product having an active ingredient at a high concentration, for example, 3 to 10 times the above-mentioned preferred concentration, and is diluted with water until it reaches the preferred concentration at the time of use. It is good to prepare by.

  In the composition of the present invention, if necessary, additive components usually used in the water-repellent shampoo composition within the range not detracting from the object of the present invention, such as stabilizers, antifreezing agents, antiseptics, rust preventives, ultraviolet rays Absorbers, coloring agents such as pigments, and the like can be included.

  The composition of the present invention is preferably applied to a hard surface such as a hard base material surface. Examples of hard surfaces include, for example, glass, stainless steel, steel, and other metals, plastics, surfaces of metal, plastic, and wood coatings or platings. , Roofs, kitchen ranges, ventilation fans, furniture, various industrial products, and other dirty hard surfaces in general, vehicles such as automobiles, railway vehicles, aircraft, ships, especially automobile bodies.

  The composition of the present invention is suitably used for pretreatment of washing and drying of a hard surface such as a hard base material surface, especially a vehicle body such as an automobile or a surface of a window glass, and the like. It can be suitably washed and dried on the surface of the body of a vehicle such as an automobile or window glass, and is applied to the body to be treated especially for car washing, in particular, the final water washing treatment of a car wash by a car wash machine. Then, by washing with water, it is possible to easily wash with one liquid and to have water repellency.

  Next, the best mode for carrying out the present invention will be described with reference to examples, but the present invention is not limited to these examples.

Example 1
After creating a painted plate by baking an automotive repair paint made of acrylic-melamine resin in a laminated form of base coat and top coat on a plated steel plate material for automobile body, this is polished with diatomaceous earth, Washed and air-dried to obtain a test piece. To this test piece, a diluted sample solution obtained by diluting a concentrated aqueous shampoo / water-repellent coating composition prepared in advance in Table 1 (balance is water) 5 times with water is spray-coated with a spray gun. After washing with water, the following various tests and evaluations were performed. The results are shown in Table 2.

(I) Foaming Foaming when applied with a spray gun was visually observed and evaluated according to the following criteria.
A: Raised foam does not sag even when the painted plate is erected.
○: Swelling bubbles slowly fall down when the painted plate is set up.
(Triangle | delta): The foam quality is soft and it is easy to sag.
×: Less bubbles

(B) Catalytic properties A diluted sample solution was applied to a black new painted plate, heated at 80 ° C. for 15 minutes, washed with water, visually observed for the presence of a Kata on the painted plate, and evaluated according to the following criteria.
A: No abnormality is observed on the painted plate.
○: Slight kata (snaking) is observed on the painted plate, and it can be easily wiped off by rubbing with a soft cloth.
Δ: Slightly uneven shapes are observed on the painted plate, and can be wiped off by rubbing strongly with a soft cloth.
X: Kata is recognized on the painted plate, and it cannot be removed even if rubbed strongly with a soft cloth.

(C) Water repellency Water was applied to the test piece, and the contact angle of the adhering water droplet was measured with a contact angle meter (manufactured by Kyowa Interface Science Co., Ltd., Dropmaster 700 type) and evaluated according to the following criteria. The contact angle was the average of 5 measurements.
◎: 100 ° or more ○: 95 ° or more and less than 100 ° △: 86 ° or more and less than 95 ° ×: less than 86 °

Example 2-6
Various tests and evaluations were performed in the same manner as in Example 1 except that the aqueous shampoo / water-repellent coating composition of Example 1 was replaced with the formulation shown in Table 1 (balance was water). The results are shown in Table 2.

In the table, among the composition components, those with trade names are as follows.
SF8417: manufactured by Toray Dow Corning, amino-modified silicone (kinematic viscosity 1200 cSt, amino equivalent 1800)
BY16-209: manufactured by Toray Dow Corning, amino-modified silicone (kinematic viscosity 500 cSt, amino equivalent 1800)
BY16-849: manufactured by Toray Dow Corning, amino-modified silicone (kinematic viscosity 1300 cSt, amino equivalent 600)
TSF4703: Toray Dow Corning, amino-modified silicone (kinematic viscosity 1000 cSt, amino equivalent 1600)
TSF4702: manufactured by Toray Dow Corning, amino-modified silicone (kinematic viscosity 500 cSt, amino equivalent 1600)
KF-867: manufactured by Toray Dow Corning, amino-modified silicone (kinematic viscosity 1300 cSt, amino equivalent 1700)
KF-880: manufactured by Toray Dow Corning, amino-modified silicone (kinematic viscosity 650 cSt, amino equivalent 1800)
Neugen ET135: Daiichi Kogyo Seiyaku Co., Ltd., higher alcohol ethoxylate Neugen ET170: Daiichi Kogyo Seiyaku Co., Ltd., higher alcohol ethoxylate Neugen ES120: Daiichi Kogyo Seiyaku Co., Ltd., higher fatty acid ethylene oxide adduct Aromox DMC-W: Lion Corporation High alcohol ethoxylate genaminox MY: manufactured by Clariant Chemical Co., myristyl dimethylamine oxide Amizole CDE: manufactured by Kawaken Fine Chemical Co., Ltd., palm fatty acid diethanolamide Pluronic L-64: manufactured by Asahi Denka Kogyo Co., Ltd., polyoxyethylene polyoxypropylene block polymer

  The contact angle determined for the untreated specimen itself was 83 °.

  From Table 2, the non-treated test piece that was not subjected to the coating treatment of the aqueous shampoo and water repellent coating composition of the present invention was not good in water repellency, whereas each example was excellent in each evaluation and water repellency. It turns out that it is favorable.

  According to the composition of the present invention, it is applied to a hard surface, particularly the surface of a vehicle such as an automobile, before the water-washing finish treatment, and in particular, applied to the vehicle body to be treated before the final water-washing treatment of the car wash. By doing so, it becomes possible to easily provide cleaning properties and water repellency with a single solution.

Claims (10)

An aqueous shampoo and water repellent coating composition comprising (A) an amino-modified silicone, (B) a nonionic surfactant, and (C) at least one selected from monosaccharides and oligosaccharides . (A) 0.1 to 5 parts by mass of amino-modified silicone, (B) 2 to 10 parts by mass of nonionic surfactant, and (C) at least one type selected from monosaccharides and oligosaccharides 3 to 20 parts by mass An aqueous shampoo and water repellent coating composition characterized by containing a part.   The composition according to claim 1 or 2, wherein the component (A) has a kinematic viscosity of 350 to 3000 cSt at an amino equivalent of 800 to 3000. The component (B) is at least one selected from alkyl ether alkylene oxide adducts, higher fatty acid alkylene oxide adducts, sorbitan fatty acid ester alkylene oxide adducts, alkylamine oxides and alkylamidopropylamine oxides. 4. The composition according to any one of 3 to 3. The composition according to any one of claims 1 to 4, wherein the component (C) is at least one selected from glucose, galactose, maltose, saccharose and lactose.   The composition according to any one of claims 1 to 5, wherein the composition is for cleaning and water-repellent treatment finishing and can be washed and water-repellent with a single solution.   The composition according to any one of claims 1 to 6, which is used for a vehicle, an aircraft or a ship.   The composition according to any one of claims 1 to 7, which is used in application by a spray gun or in a car wash.   The composition according to any one of claims 1 to 8, which is used in a car wash by a car wash machine.   The composition according to claim 9, wherein the car wash is a gate type car wash or a spray car wash.