JPH01171A - Polish protectant for tires - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a polish protectant for tires of automobiles, bicycles, etc. The present invention relates to a polish protectant that can provide water resistance and a polish effect over a long period of time.

(Prior Art) When automobile and bicycle tires are used for about one to two years, they become whitish and lose their luster. Cracks and fissures may also appear. For this purpose, polish protectants for tires have long been available in the form of silicone oils, oils and waxes dissolved in organic solvents, or as emulsions in which silicone oils, oils and waxes are emulsified in water using surfactants. type etc. are used.

(Problems to be Solved by the Invention) These polish protectants are applied very thinly to the tire surface and are easily washed off by rain, etc., so they cannot provide water resistance or polish to the tire surface. The drawback is that the protective effect is temporary and not sustainable.

(Means for Solving the Problems) Therefore, the present invention has developed a polishing protective agent that can provide long-term water resistance and polishing effects even when applied thinly to the tire surface. As a result of intensive research with the aim of The present invention proposes a tire polish protection agent containing 5 to 75 Wt of resins consisting of one or more copolymers.

The above-mentioned resins used in this invention may be dissolved in an organic solvent, or this solution may be dispersed in water as an emulsion using a surfactant and water. Furthermore, an emulsion of the above resin may be synthesized by emulsion polymerization or the like, and this emulsion may be dispersed in water.

Note that the organic solvent used here may be any one that can dissolve the above resin; - alcohol solvents such as methyl alcohol and ethyl alcohol; ketone solvents such as acetone and MEK; 1,1.1-) Chlorine solvents such as lychloroethane, aromatic solvents such as benzene and toluene, ester solvents such as ethyl acetate and butyl acetate, and fluorine solvents such as Freon 113 can be used.

In addition, the surfactants used to emulsify the above resins in water include anionic surfactants such as sodium alkylbenzenesulfonate, cationic surfactants such as alkylammonium chloride, and non-ionic surfactants such as polyoxyethylene alkylphenol ether. Examples include ionic surfactants. These surfactants are used, for example up to 5WtX, to emulsify the resins.

In this invention, the content of the resins is 5 to 75 WtZ.
, preferably 10 to 50 Wt$. If the content of the resin is less than swtx, a durable polishing effect cannot be imparted to the tire surface. Furthermore, if the resin content is 75 Wt$ or more, the viscosity will be too high and the workability will be reduced.

The above resins may be used alone or in combination of two or more. In addition, especially when used in combination with silicone oil, workability is improved and a glossy protective film can be formed on the tire surface.

In this case, the ratio of silicone oil to resin is 2
0 to 50 Wt$ is appropriate.

Furthermore, by adding an ultraviolet absorber and an antioxidant to these polishing agents, it is possible to prevent tire deterioration based on their respective functions.

Here, the ultraviolet absorbers used include pt-butylphenyl salicylate, 2-hydroxy-4-methoxybenzophenone, 2,2-dihydroxy-4-methoxybenzophenone, 2-(2-hydroxy-5-methylphenyl ) benzotriazole, 2-(2-hydroxy-3,5-di-t-butylphenyl)benzotriazole, and the like.

In addition, as an antioxidant, 2,6-di-t-butyl-p
-Cresol, 2,6-di-t-butyl-4-ethylphenol, butylated hydroxyanisole, 2,2-methylene-bis-(4-methyl-6-t-butylphenyl), 4,4-thiobis-( 3-methyl-6-t-butylphenol)1.1.3-tris-(2-methyl-4-
Examples include hydroxy-5-t-butylphenyl)butane, dilaurylthiodipropionate, triphenylphosphite, and phenyldiisodecylphosphite.

The appropriate amount of these ultraviolet absorbers and antioxidants is 0.1 to 5 WLX for each resin.

(Effects of the Invention) The tire polish protectant of this invention contains the above-mentioned resins in its ingredients, so even if it is thinly applied to automobile or bicycle tires, it will leave the tire surface with good water resistance. It can provide long-lasting shine and protective effect.

Further, by incorporating an ultraviolet absorber and an antioxidant into the tire polish protectant composition of the present invention, special effects such as suppressing tire deterioration can be imparted.

(Example) Examples of this invention will be shown below.

Example 1 Formulation example 1 Acrylic emulsion (50%) 30WtX tap water 7Qrr Formulation example 2 Silicone emulsion 5Wt! Vinyl acetate 10n tap water
85 horns blending example 3 Polystyrene I OW LX Benzene gOn blending example 4 ABS resin 15Wt$ Toluene 30 horns polyoxyethylene nonyl phenol ether (Noigen EA-
140) 2# water
5311 Formulation Example 5 Polyvinyl Alcohol 10Wt$ Tap Water
90II formulation example 6 Alkyd resin awtx ethyl acetate 92J7 formulation example 7 ABS resin 15Wt$xylene
8511 Formulation Example 8 Silicone oil s, owtx acrylic resin 10.0 no I Freon 11:l
85.071 Comparative formulation example 1 Silicone oil 10Wt$ Freon 11
3 90 horn comparative formulation example 2 Silicone emulsion (60 li 20Wt 4 Silicone oil 5wt% Liquid paraffin 6 Freon 113 89 No.I The tire polish protectant prepared above was applied to a tire, and the water resistance was compared. The results are shown in the table below.

Note that water resistance is indicated by the number of times the product has been run through a washing machine.

In addition, in the table, ◎ shows water repellency even at the 28th test.

○: Almost the entire area got wet on the 6th try.

△: Nol at the 4th time △: JJ at the 2nd time Example 2 Among the formulation examples of Example 1, the one with good water resistance (O) was added and blended with ultraviolet absorbers, antioxidants, etc. A tire polishing agent having the following formulation was manufactured.

Formulation example 9 Polystyrene towtz 2-hydroxy-4-methoxybenzophenone, 0517 2.6-di-t-butyl-4-ethylphenol 0,1
n Benzene 871 formulation example 10 ABS resin 15W tl toluene 29 np-t-butylnoenyl salicylate 5.4n Neugen EA-1402nol water 5311 formulation example II Alkyd resin aw tz butylated hydroxyanisole Q, ln ethyl acetate
91.9/no Formulation Example 12 Silicone oil s, owtz acrylic resin 10.0 #2-(2-hydroxy-3,5-di-t-butylphenyl)benzotriazole 0.3r+2.2-methylene-
Bis-(4-methyl-6-t-butylphenol)0.
2Tunoflon 11:l 84.51No Tests were conducted on the tire protectants prepared using these blends in the same manner as in Example 1, and the results confirmed that these additives did not have an adverse effect on the polishing performance ( It was water repellent again after the 8th try).

Next, a deterioration acceleration test was conducted on the tire protective polishing agent blended above in the following manner. The results are shown in Example 3.4 of Example 1, which does not contain antioxidants or ultraviolet absorbers.
．． A comparison with 6.8 is shown below.

Accelerated deterioration test method: Using SBR as the rubber, apply the above compounded tire protective polish to an SBR dumbbell test piece, and measure the tensile strength of each test piece after irradiating it with ultraviolet light for 10F1 using an ultraviolet carbon arc fade meter. do.

Blend example 9 94 (-4,1%) Horn +0
92 (-6,1 鵞;) 11 11
95(-
3,1X)rr 12
93 (-5,1%) Horn
3
87 (-11,2%) Horn 4
86(-12,
3s;)n 5
88 (-10.2%) n 8
87 (-11,2%) uncoated
81Kg/cm2 (-172) Tensile strength of SBR before test 98Kg/cm2 - As is clear from these results, the products containing antioxidants and ultraviolet absorbers (formulation examples 9 to 12) are different from those containing these (formulation examples 9 to 12). It was found that the deterioration of the rubber was suppressed compared to Blend Examples 3.4 and 6.8).

Claims (1)

[Claims] In water and/or organic solvent, acrylic resin, vinyl acetate resin, urethane resin, alkyd resin, vinyl chloride resin,
A polish protective agent for tires containing 5 to 75 wt% of resins consisting of one or more of ABS resin, styrene resin, styrene-butadiene resin, and ethylene-vinyl acetate copolymer.