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Shot material and method of blastingRelated Patent Categories: Abrading, Abrading Process, Utilizing Fluent Abradant, By BlastingShot material and method of blasting description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070173181, Shot material and method of blasting. Brief Patent Description - Full Patent Description - Patent Application Claims
RELATED APPLICATION DATA [0001] This application is a divisional of U.S. patent application Ser. No. 10/504,304, filed Aug. 11, 2004, the entirety of which is incorporated herein by reference to the extent permitted by law, which is the Section 371 National Stage of PCT/JP03/01433. This application claims the benefit of priority to PCT International Application No. PCT/JP03/01433, filed Feb. 12, 2003 and Japanese Patent Application Nos. P2002-034607, filed Feb. 12, 2002, P2002-034611, filed Feb. 12, 2002, and P2002-096980, filed Mar. 29, 2002. BACKGROUND OF THE INVENTION [0002] The present invention relates to a shot material and a blasting method using the shot material. [0003] Blast processing is used in a wide variety of fields for peeling a coating, such as a white line on the pavement, and removing other deposits, removing a deposit to a rubber mold, removing a deposit, such as paint, pollutant, rust, or surface oxide, deburring of a resin shaped article, or surface abrasion. Conventionally, as a shot material for use in the blast processing, particles made of various materials, such as alumina, glass, or a resin, have been utilized. Recently, from the viewpoint of reduction and recycle of waste for preventing environmental pollution, attempts are vigorously made to remove coating films in products disposed of (for example, metal materials and resin materials in automobiles and household appliances) by blasting treatment using the shot material to reuse them as raw materials. Therefore, various studies have been made on the shot material used in the blasting treatment (e.g., Japanese Patent Application Publication No. 2001-277123). [0004] However, the blasting treatment for peeling the coating films in waste requires a great amount of the shot material, and therefore poses problems of costs for the material of the shot itself and for treating the used shot material. In addition, the shot material used for an object of reusing waste becomes another waste and hence the used shot material must be treated, antistatic properties must be imparted to the shot material for preventing it from adhering to the materials peeled, and safety must be secured for preventing an occurrence of dust explosion, and these problems of treatments for the shot material are the big hurdle that should be overcome for putting the shot material into practical use. [0005] In view of the above problems accompanying the current techniques, an object of the present invention is to provide a blasting method and a shot material, which are very practical both in the cost and the treatment performance. SUMMARY OF THE INVENTION [0006] The present inventors have conducted extensive and intensive studies with a view toward solving the above-mentioned problems. As a result, it has been found that the use of, individually or in combination, (a) a shot material containing a styrene ion-exchange resin or a waste material caused therefrom, or/and a dried sludge-derived material, (b) a shot material containing a resin (C) which is comprised of a resin (A) containing a rubber component {heresinafter, frequently referred to simply as "resin (A)"} and a resin (B) containing no rubber component {heresinafter, frequently referred to simply as "resin (B)"}, and (c) a shot material containing an epoxy resin composition and inorganic filler is extremely effective in solution or improvement of the above problems, and the present invention has been completed. [0007] Specifically, the present invention is directed to: [0008] (1) a shot material characterized in that it contains a styrene ion-exchange resin or/and a dried sludge-derived material; [0009] (2) the shot material according to item (1) above, characterized in that the styrene ion-exchange resin or/and the dried sludge-derived material are contained in an amount of 0.1% by weight or more; [0010] (3) the shot material according to item (1) above, characterized in that the styrene ion-exchange resin is a waste material which has been used for a purpose; [0011] (4) the shot material according to item (1) above, characterized in that the dried sludge-derived material contains 30% by weight or more of an inorganic component; [0012] (5) the shot material according to item (1) above, characterized in that it further contains another shot material other than the styrene ion-exchange resin and the dried sludge-derived material; and [0013] (6) the shot material according to item (5) above, characterized in that the another shot material is at least one member selected from the group consisting of a thermosetting resin, a thermoplastic resin, a biodegradable polymer, a metal, a metal oxide, a metal hydroxide, a metal salt, ceramic, and carbon black. [0014] Further, the present invention relates to: [0015] (7) a blasting method characterized by using a shot material which contains a styrene ion-exchange resin or/and a dried sludge-derived material; [0016] (8) the blasting method according to item (7) above, characterized in that the styrene ion-exchange resin or/and the dried sludge-derived material are contained in an amount of 0.1% by weight or mores in the shot material; [0017] (9) the blasting method according to item (7) above, characterized in that the styrene ion-exchange resin is a waste material which has been used for a purpose; [0018] (10) the blasting method according to item (7) above, characterized in that the dried sludge-derived material contains 30% by weight or more of an inorganic component; [0019] (11) the blasting method according to item (7) above, characterized in that the shot material further contains another shot material other than the styrene ion-exchange resin and the dried sludge-derived material; and [0020] (12) the blasting method according to item (11) above, characterized in that the another shot material is at least one member selected from the group consisting of a thermosetting resin, a thermoplastic resin, a biodegradable polymer, a metal, a metal oxide, a metal hydroxide, a metal salt, ceramic, and carbon black. [0021] Further, the present invention relates to: Continue reading about Shot material and method of blasting... Full patent description for Shot material and method of blasting Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Shot material and method of blasting 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 Shot material and method of blasting or other areas of interest. ### Previous Patent Application: Method of changing the surface wettability of polymer materials Next Patent Application: Jig for cnc machine Industry Class: Abrading ### FreshPatents.com Support Thank you for viewing the Shot material and method of blasting patent info. 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