Articles comprising ethylene-based polymer, polyolefin, silane crosslinker, and metallic stearate catalyst
AssigneeAvient Corporation
InventorsShu LIU, Liang XU, Yannan DUAN
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Abstract
Embodiments of the present disclosure are directed to articles comprising a crosslinked reaction product of ethyl-ene-based polymer, polyolefin; silane crosslinker; and 1 to 5 weight percent (wt %) of a metallic stearate catalyst. The ethylene-based polymer is silane grafted. The grafted silane enables at least one intramolecular silane crosslinking of the ethylene-based polymer and intermolecular silane crosslinking of the ethylene-based polymer and the polyolefin.
Claims24
An article comprising a crosslinked reaction product of:
- olefin block copolymer (OBC);
- polyolefin;
- silane crosslinker;
- and
- 1 to 5 weight percent (wt %) of a metallic stearate catalyst,
- wherein the OBC is silane grafted, and
- wherein the grafted silane enables at least one of intramolecular silane crosslinking of the OBC and intermolecular silane crosslinking of the OBC and the polyolefin.
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A process for making an article comprising a crosslinked reaction product of olefin block copolymer (OBC), polyolefin, silane crosslinker, and a metallic stearate catalyst, the process comprising the steps of:
- grafting the OBC with the silane such that the OBC is silane grafted;
- and
- curing the silane-grafted OBC in the presence of 1 to 5 wt % of the metallic stearate catalyst, such the OBC and the polyolefin are silane crosslinked.
An article comprising a crosslinked reaction product of:
- an ethylene-based polymer, the ethylene-based polymer comprising polyolefin elastomer (POE), high-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), polyethylene, or a combination thereof,
- polyolefin;
- silane crosslinker;
- and
- 1 to 5 weight percent (wt %) of a metallic stearate catalyst,
- wherein the ethylene-based polymer is silane grafted, and
- wherein the grafted silane enables at least one of intramolecular silane crosslinking of the ethylene-based polymer and intermolecular silane crosslinking of the ethylene-based polymer and the polyolefin.
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Dependencies are inferred from the claim text.