Method for coating a pipeline field joint
US11174410B2 · kind B2 · utility
0Cited by
17References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2018 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method of coating a pipeline field joint comprising the steps of (a) applying a layer of a coating material composition comprising (i) a propylene polymer and (ii) a substantially linear ethylene copolymer, a linear ethylene copolymer, or mixtures thereof, to the uncoated region of the field joint, preferably the coating is applied by injection molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.