Abstract: The present invention relates to a coating composition for covering golf balls. More particularly, the present invention relates to a matte coating composition mixed with a synthetic fatty acid resin derived from dehydrated castor oil. According to the present invention, a golf ball having a matte surface can realize a uniform and fine matte appearance and ensure a field of vision to enable high-precision hitting, faithfully express desired marks of various colors, characters and patterns applied thereto, and prevent surface yellowing caused by exposure to ultraviolet rays over a long period of time.

Abstract: The present invention relates to a coating composition for covering golf balls. More particularly, the present invention relates to a matte coating composition mixed with a synthetic fatty acid resin derived from dehydrated castor oil. According to the present invention, a golf ball having a matte surface can realize a uniform and fine matte appearance and ensure a field of vision to enable high-precision hitting, faithfully express desired marks of various colors, characters and patterns applied thereto, and prevent surface yellowing caused by exposure to ultraviolet rays over a long period of time.

Abstract: Disclosed are an air inflating and deflating float for marine cultivation and a manufacturing method thereof. The air inflating and deflating float for marine cultivation includes a soft float body provided with a valve fixing part with an insertion hole, formed at the center thereof and connected to the inside of the float body, formed at one side of the float body; a valve inserted into the insertion hole of the valve fixing part, and provided with a through hole, through which air comes in and out, formed therein; and a protection cap inserted into the valve fixing part to prevent the air from being discharged via the through hole of the valve, and closing the through hole of the valve.