Cross-linkable polymeric compositions, methods for making the same, and articles made therefrom
AssigneeDow Global Technologies LLC
InventorsYabin Sun, Timothy J. Person, Jeffrey M. Cogen, Journey Lu Zhu
Life of this patent
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Abstract
Cross-linkable polymeric compositions having an ethylene-based polymer, an organic peroxide, and a polyallyl cross-linking coagent, where the polyallyl cross-linking coagent and the organic peroxide are present in amounts sufficient to provide an allyl-to-active oxygen molar ratio of at least 1.6, based on the allyl content of the polyallyl cross-linking coagent and the active oxygen content of the organic peroxide. Such cross-linkable polymeric compositions can be employed in forming coated conductors.
Claims15
A cross-linkable polymeric composition comprising:
- a low-density polyethylene homopolymer;
- an organic peroxide;
- and
- a polyallyl cross-linking coagent,
- wherein said polyallyl cross-linking coagent and said organic peroxide are present in amounts sufficient to provide an allyl-to-active oxygen molar ratio of at least 1.6, based on the allyl content of said polyallyl cross-linking coagent and the active oxygen content of said organic peroxide;
- wherein the cross-linkable polymeric composition further comprises an antioxidant that is a hindered phenol or a thio compound.
A process for producing a coated conductor, said process comprising:
- (a) coating a conductor with a cross-linkable polymeric composition, wherein said cross-linkable polymeric composition comprises a low-density polyethylene homopolymer, an organic peroxide, and a polyallyl cross-linking coagent;
- and
- (b) curing or allowing to cure at least a portion of said cross-linkable polymeric composition, thereby forming a cross-linked polymeric coating,
- wherein said polyallyl cross-linking coagent and said organic peroxide are present in said cross-linkable polymeric composition in amounts sufficient to provide an allyl-to-active oxygen molar ratio of at least 1.6, based on the allyl content of said polyallyl cross-linking coagent and the active oxygen content of said organic peroxide;
- wherein the cross-linkable polymeric composition further comprises an antioxidant that is a hindered phenol or a thio compound.
A cross-linkable polymeric composition comprising:
- a low-density polyethylene homopolymer;
- an organic peroxide;
- and
- a polyallyl cross-linking coagent;
- wherein said polyallyl cross-linking coagent and said organic peroxide are present in amounts sufficient to provide an allyl-to-active oxygen molar ratio of at least 1.6, based on the allyl content of said polyallyl cross-linking coagent and the active oxygen content of said organic peroxide,
- wherein said cross-linkable polymeric composition is substantially free of vinyl-functional esters;
- wherein the cross-linkable polymeric composition further comprises an antioxidant that is a hindered phenol or a thio compound.
Dependencies are inferred from the claim text.