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US 10,093,756 B2Granted
Process for cross-linked polyethylene production
AssigneeFina Technology, Inc.
InventorsFengkui Li, John Ashbaugh, Jason Clark
Life of this patent
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Abstract
A method of producing a silane cross-linked polyethylene is disclosed which includes maleating a polyethylene polymer to form a maleated polyethylene and reacting the maleated polyethylene with a primary or secondary amino silane to form a silane-grafted polyethylene. The method further includes treating the silane-grafted polyethylene in a moisture curing process to form the silane cross-linked polyethylene.
Claims18
A method comprising:
- maleating a polyethylene polymer to form a maleated polyethylene, wherein maleating the polyethylene polymer comprises combining the polyethylene polymer, a free radical initiator, and maleic anhydride to form a reaction mixture, wherein the maleic anhydride concentration is at least 1.8 weight percent of the reaction mixture;
- reacting the maleated polyethylene with a primary or secondary amino silane to form a silane-grafted polyethylene;
- and
- treating the silane-grafted polyethylene in a moisture curing process to form the silane cross-linked polyethylene.
1 more element
Dependencies are inferred from the claim text.