| Club head -> Monitor Keywords |
|
|
 
Club headRelated Patent Categories: Games Using Tangible Projectile, Golf, Club Or Club Support, HeadClub head description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20050282655, Club head. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATION [0001] This non-provisional application claims priority under 35 U.S.C. .sctn.119(a) on Patent Application No. 2004-179028 filed in Japan on Jun. 17, 2004, the entire contents of which are hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002] The present invention relates to a club head excelling in surface durability. [0003] Club heads for golf, park golf, grand golf, and gate ball usually have a coating film for their surface protection and good appearance. Such coating film is required to have not only good appearance but also good resistance to impact and wear resulting from repeated shots by the club or stick. [0004] A club head coating material to meet this requirement is disclosed in JP-A 2003-126306. It is composed of 100 pbw of acrylic resin (solids) and 1.0 to 10.0 pbw of polyethylene wax. It forms a coating film which exhibits good wear resistance and peel resistance owing to the outstanding impact resistance of the acrylic resin. [0005] This conventional coating material, however, is not entirely satisfactory. Even though it forms an impact- and wear-resistant coating film on the club head, the coating film is subject to scuff which propagates to deteriorate the head's appearance. So, there has been a demand for club heads which keep their good appearance even after repeated shots. SUMMARY OF THE INVENTION [0006] The present invention was completed in view of the foregoing. It is an object of the present invention to provide a club head which keeps a good appearance even after repeated shots because of its good scratch or scuff resistance and its ability to repair scuffs by itself with the lapse of time even though it is temporarily damaged. [0007] As the result of their extensive studies, the present inventors found that the above-mentioned object is achieved by a club head composed of a club head body and a coating film covering the club head body, wherein the coating film includes a layer having good scratch or scuff resistance and high resilience. This finding led to the present invention. [0008] The first aspect of the present invention is directed to a club head composed of a club head body and a single- or multi-layered coating film covering the club head body, wherein the coating film includes a coating layer having good scratch or scuff resistance and high resilience. [0009] The second aspect of the present invention is directed to the club head as defined above in which the coating layer having good scratch or scuff resistance and high resilience is one which is formed from any of a coating compound containing polydimethylsiloxane copolymer, polycaprolactone, and polysiloxane, a coating compound containing polydimethylsiloxane copolymer whose skeleton has polycaprolactone and polysiloxane introduced thereinto, a coating compound containing polydimethylsiloxane copolymer whose skeleton has polycaprolactone introduced thereinto and polysiloxane, and a coating compound containing polydimethylsiloxane copolymer whose skeleton has polysiloxane introduced thereinto and polycaprolactone. [0010] The third aspect of the present invention is directed to the club head as defined in the first aspect which the coating layer having good scratch or scuff resistance and high resilience is formed after a deposited layer has been formed by ion plating on the surface of the club head body. [0011] The fourth aspect of the present invention is directed to the club head as defined in the first aspect which is intended for golf, park golf, grand golf, and gate ball. [0012] The club head according to the present invention keeps its good appearance even after repeated shots. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0013] The invention will be described below in more detail with reference to its preferred embodiments. [0014] The club head according to the present invention is composed of a club head body and a single- or multi-layered coating film covering the club head body. It is characterized in that the coating film includes a coating layer having good scratch or scuff resistance and high resilience. [0015] The term "a coating layer having good scratch or scuff resistance and high resilience" as used in the present invention implies a coating layer which repairs its scuffs by itself with the lapse of time even when it is damaged slightly by scuffs or dents (hereinafter, such function described as self-healing ability). This function is ascribed to the good resilience of the coating film. [0016] The coating film varies in resilience and the self-healing function relies on resilience. Resilience depends on the molecular structure of the block copolymer consisting of soft segments and hard segments. Hard segments form crystalline domains and soft segments form amorphous domains. Crystalline domains function as crosslinking sites (which prevent amorphous domains from plastic deformation). Thus, the coating film as a whole exhibits resilience, and the degree of resilience varies depending on the kind and composition of monomer units constituting the block copolymer and also on the arrangement of monomer units in the polymer chains. [0017] There are no restrictions on the coating compound which forms the above-mentioned coating film having scratch or scuff resistance and high resilience. It may be selected from clear resins based on acrylate, urethane, polycarbonate, polystyrene, polyester, silicone, and fluoroplastics, in the form of homopolymer, copolymer, or blend. Its typical examples are listed below. [0018] (1) One containing polydimethylsiloxane copolymer, polycaprolactone, and polysiloxane. [0019] (2) One containing polydimethylsiloxane copolymer whose skeleton has polycaprolactone and polysiloxane introduced thereinto. [0020] (3) One containing polydimethylsiloxane copolymer whose skeleton has polycaprolactone introduced thereinto and polysiloxane. Continue reading about Club head... Full patent description for Club head Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Club head patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Club head or other areas of interest. ### Previous Patent Application: Club shaft Next Patent Application: Golf putter head with a visual alignment aid and an increased moment of inertia Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Club head patent info. IP-related news and info Results in 0.24748 seconds Other interesting Feshpatents.com categories: Daimler Chrysler , DirecTV , Exxonmobil Chemical Company , Goodyear , Intel , Kyocera Wireless , 174 |
 * Protect your Inventions * US Patent Office filing 
PATENT INFO |
|
