Thermoplastic materials for use in slurry transportation pipes
AssigneeSabic Global Technologies B.V.
InventorsDong Wan, Maria Soliman, Hongtao Shi, Kai Guo
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Abstract
The present invention relates to a thermoplastic material, wherein the thermoplastic material comprises ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ≥50° C. as determined in accordance with ISO 306 (2013), method A50, and a weight loss as determined on a compression moulded sheet according to ISO 15527 (2010), Annex B, using silica sand/water slurry with a mass ratio of 3:2, test duration 7 h, of ≤0.50 wt %. The invention also relates to a slurry transportation pipe comprising the thermoplastic material as its inner layer, or consisting of the thermoplastic material.
Claims20
A thermoplastic material, wherein the thermoplastic material comprises an ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ≥50° C. as determined in accordance with ISO 306 (2013), method A50, and a weight loss as determined on a compression moulded sheet according to ISO 15527 (2010), Annex B, using silica sand/water slurry with a mass ratio of 3:2, test duration 7 h, of ≤0.50 wt %;
- wherein the ethylene-based polymer material comprises a first ethylene-based polymer (P1) and a second ethylene-based polymer (P2);
- wherein:
- the first ethylene-based polymer P1 has a density of <0.880 g/cm3, as determined in accordance with ISO 1183-1 (2019);
- and
- the second ethylene-based polymer P2 has a density of >0.890 g/cm3, as determined in accordance with ISO 1183-1 (2019);
- and
- wherein the ethylene-based polymer material comprises >10.0 wt % and <90.0 wt % of P1, with regard to the sum of the weight of P1 and P2;
- and
- wherein P1 and P2 are both ethylene-1-octene copolymers.
Dependencies are inferred from the claim text.