Internal anticorrosive and abrasive resistant protection coating for steel pipes
AssigneePatagonia Shale Services S.A.
InventorsAdrian Andreani, Federico Noriega
Life of this patent
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Abstract
The present invention includes an inner anticorrosive and abrasive resistant coating (10) for steel pipes (1) used for the transport of fluids. The coating includes: a layer of epoxy resin (2) having free hydroxyl groups, which are applied directly to the inside 1a of the steel pipe (1); a layer of thermoplastic adhesive (3) applied directly onto the layer of epoxy resin; and a layer of 12-Aminododecanoic acid lactam with the formula (C12H23NO), which is applied directly onto the layer of adhesive.
Claims4
An inner coating (10) providing anticorrosive and abrasive resistant protection for steel pipes (1) used for the transport of fluids, the coating includes:
- a layer of epoxy resin having free hydroxyl groups (2) applied directly onto the inner surface 1a of the steel pipe (1);
- a layer of thermoplastic adhesive (3) applied directly onto the layer of epoxy resin, the thermoplastic adhesive is anhydride modified polyolefin or acrylic acid modified polyolefin;
- and
- a layer of 12-Aminododecanoic acid lactam whose formula is (C12H23NO), which is applied directly onto the layer of adhesive.
An internally lined steel pipe with an inner coating providing anticorrosion and abrasive resistant protection of the pipe, the coating includes:
- a layer of epoxy resin having free hydroxyl groups (2) applied directly onto the inner surface 1a of the steel pipe (1);
- a layer of thermoplastic adhesive (3) applied directly onto the layer of epoxy resin, the thermoplastic adhesive is anhydride modified polyolefin or acrylic acid modified polyolefin;
- and
- a layer of 12-Aminododecanoic acid lactam whose formula is (C12H23NO), which is applied directly onto the layer of adhesive.
Dependencies are inferred from the claim text.