Filler and floatability material - manufacturing process and tubular units that incorporate this material
AssigneeInstitut Francais du Petrole
InventorsJacques Jarrin, Eric Robert
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Abstract
This invention concerns a new filler and floatability material as well as its manufacturing process. For instance, this new material can be used as a filler and floatability material (A) which separates tubes or cables (1,2) in a tubular unit that includes an external sheath (B) surrounding a harness of tubes or cables (1,2). In view of its make-up this material also participates in the thermal insulation of said tubes. The invention concerns also such tubular units which incorporate the new material.
Claims4
A tubular harness structure which comprises a plurality of tubes that are arranged in close contact with each other thereby providing an assembly of flexible tubes, the assembly being surrounded by an outer sheath made of thermoplastic material, and a floatation material incorporated between the tubes and the outer sheath;
- said material containing 50-80% by volume of a olefinic homopolymer or copolymer and 50-20% by volume of hollow particulate fly ash microspheres naturally obtained from the soot of pulverized coal power plants.
Dependencies are inferred from the claim text.