CABLE SEALANT

• US 3,830,953 A
• Filed: 08/16/1971
• Issued: 08/20/1974
• Est. Priority Date: 02/16/1970
• Status: Expired due to Term

• Current Assignee: United Technologies Automotive, Inc. (Lear Corporation)
• Original Assignee: James E. Wood, Larry A. Strecker, Robert E. Cratz
• Inventors: Wood, James E., Strecker, Larry A., Cratz, Robert E.
• Primary Examiner(s): Lesmes, George F.
• Assistant Examiner(s): Bell, James J.
• Application Number:
  US05/165,814
• Time in Patent Office: 1,100 Days
• Field of Search: 260/31.8M 156/48,275 174/23C,23R 161/144,175 117/232,128.4
• US Class Current: 174/23.00C
• CPC Class Codes: H01B 7/285 by completely or partially filling interstices in the cable
• CPC Class Codes: Y02A 30/14 Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
• CPC Class Codes: Y10T 74/20456 Specific cable or sheath structure

Abstract

A cable sealant to seal the voids between the strands of electrical and similar cables to prevent water flow through same and to seal the cable elements from the atmosphere. The preferred cable sealant composition comprises about 20 percent by weight ethylene propylene rubber copolymer, about 30 percent polypropylene, about 23 percent polyethylene, and 27 percent paraffinic hydrocarbons. A small amount of colorant such as iron oxide is normally added to this composition, which is blended to form the cable sealant. A method of sealing cable by filling the voids between cable strands with the above composition at a temperature preferably in the range between 225* and 275*F.

Claims

2. A cable comprising at least one strand, a cover surrounding said strand, and void space between said strand and said cover, wherein said void space is filled with a composition of matter comprising a normally non-curing blend of from about a. 15-25 percent by weight of ethylene propylene rubber, b. 25-35 percent of atactic polypropylene, c. 18-27 percent of polyethylene, d. 22-32 percent paraffinic oil.