JP2552919B2 - Glazing protectant for automobile tires - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a glazing protectant for an automobile tire, and more specifically, for protecting a tire surface of a running tire mounted on an automobile and for providing a gloss on the same surface. The present invention relates to a protective agent for coating, which can beautifully make a glossy appearance.

[Prior Art] As a conventional automobile tire protective agent, a silicone oil protective agent made of silicone oil is known.

When this silicone oil protective agent is applied to the tire surface, carbon and plasticizer on the tire surface bleed and become brown, resulting in a dull color on the appearance. The tire surface became brittle, and the existing small cracks on the tire surface were rather enlarged.

[Problems to be Solved by the Invention] The conventional silicone oil protective agent is incompatible with the tire composition material (rubber material) due to its properties, and has a weak releasability in terms of adhesive strength. Therefore, there is a drawback that the tire surface is easily peeled off by cleaning the tire, and the present invention is to provide a tire surface protecting agent which eliminates the drawbacks of the silicone oil protecting agent.

[Means for Solving the Problem] The inventor of the present application has experimentally found that a room temperature curable silicone rubber is optimal as a protective agent that solves the drawbacks of conventional silicone oils.

This room temperature curable silicone rubber is stable as a cured film (transparent elastic film) in the atmosphere, and does not lose its elasticity due to the rubber material in the silicone rubber composition. Therefore, when this curable silicone rubber is applied to the surface of an automobile tire, the silicone rubber and the rubber material of the tire material have an extremely high affinity, so that both are in terms of shear adhesive strength, peel adhesive strength or tensile adhesive strength. It maintains a very good relationship.

[Operation] The operation when the room temperature-curable silicone rubber according to the present invention is applied to the tire surface will be described below with reference to FIG.

As shown in FIG. 1, the silicone rubber S applied to the surface of the tire 1 (see FIG. (A)) becomes a cured film SG after a lapse of required time due to the chemical properties of the silicone rubber itself. The cured film SG becomes a transparent elastic film as shown in (b), and exhibits a non-bubble state of close contact with the small cracks 11 on the tire surface and the rough surface 12 on the surface.

[Example] Since the room temperature curable silicone rubber according to the present invention is in a liquid state in the atmosphere, it may be directly applied to the tire surface with a brush or the like, but for convenience of use,
It may be used as an aerosol type gaseous silicone rubber.

Next, the solubility of the room temperature-curable silicone rubber according to the present invention and various gases for aerosol will be shown as follows.

For a tire, a chlorine-based solvent, an aromatic solvent, a ketone-based solvent or the like causes swelling or erosion of tire rubber, so normal hexane, which does not have such a problem, was used as a main solvent.

The products having the above filling ratios were sprayed on the tires of automobiles and the coating states were compared.

Tires used TOYO Z RADIAL 709EXTRA STEEL Injection distance approx. 25 cm Pretreatment method for tires Detergent: Cleanser (water treatment) Cleaning tool: Car wash brush Dry at room temperature for 60 minutes after car wash Judgment was made based on the wetness and glossiness of the coated surface, and the formulation Nos. 2-5 were appropriate.

[Effect] As shown in the first illustration, the room temperature curable silicone rubber of the present invention is extremely firmly and elastically adhered to the tire surface. For example, the silicone rubber (TSE221-
5U) (trade name) has a shear bond strength of 4.8 kgf / cm ²
Moreover, elasticity is not lost during curing. Therefore, it is possible to optimally respond to the vibration and elastic deformation of the tire during traveling.

Further, the silicone rubber of the present invention has a crack on the tire surface,
Since it adheres to the rough irregularities in a non-bubble form, it does not cause an increase in cracks or an increase in bleeding due to the properties of the tire itself.

Moreover, since the silicone rubber of the present invention is formed as a cured film on the tire surface, this cured film acts as transparent glass and diffusely reflects light, so that the tire surface is glossy and a glossing effect is produced. is there.

In addition, since the protective agent according to the present invention uses the one-component room temperature curing type silicone rubber as the main raw material, unlike the conventional silicone oil, there is no bleeding of the plasticizer carbon, and therefore the tire surface does not crack.

Further, the protective agent of the present invention has a UV resistance, an ozone resistance,
As it has excellent water resistance, it can prevent cracks and deterioration of the tire surface, and the coating film on the tire surface is -55 ℃ to + 200 ℃.
It has the adhesiveness to be a rubber elastic cured film (film) in a wide temperature range.

[Brief description of drawings]

FIG. 1 is an explanatory view of the coating action of the silicone rubber protective agent of the present invention, (a) an initial state of coating, and (b) an explanatory diagram when a cured film (film). 1: A part of an automobile tire is shown. 11: Small crack, 12: Rough unevenness S: Silicone rubber SG: Silicone rubber cured film

Claims (1)

(57) [Claims] 1. A glaze protective agent for an automobile tire, characterized by comprising applying a room temperature curable silicone rubber to a tire surface of an automobile tire to protect the tire surface and to serve as a polish agent for the tire surface.