Heat storage medium for latent heat thermal energy storage unit

• US 4,463,799 A
• Filed: 10/28/1981
• Issued: 08/07/1984
• Est. Priority Date: 10/29/1980
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Square Enix
• Original Assignee: Agency of Industrial Science & Technology Ministry of International Trade and Industry
• Inventors: Ozawa, Takeo, Takahashi, Yoshio, Kamimoto, Masayuki, Sakamoto, Ryuji, Kanari, Katsuhiko
• Primary Examiner(s): DAVIS JR, ALBERT
• Application Number:
  US06/315,865
• Time in Patent Office: 1,014 Days
• Field of Search: 165/10, 264/22, 264/83, 252/70
• US Class Current: 165/10
• CPC Class Codes: C09K 5/06 the change of state being from liquid to solid or vice versa
• CPC Class Codes: F28D 20/023 the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure
• CPC Class Codes: Y02E 60/14 Thermal energy storage

Abstract

A heat storage medium for use in a latent heat TES unit is obtained by treating a crystalline polyolefin with ion plasma thereby crosslinking it only in the surface region.

Claims

1. A heat storage medium for a latent heat TES unit, obtained by treating a crystalline polyolefin with ion plasma thereby crosslinking it only in the surface region thereof.

2. The heat storage medium according to claim 1, wherein the crystalline polyolefin is crystalline polyethylene.

3. The heat storage medium according to claim 1 or claim 2, wherein the crystalline polyolefin is formed in a required shape and thereafter treated with ion plasma.