Oil-extended EPDM in moisture cure blend
AssigneeDow Global Technologies LLC
InventorStephen H. Cree
Life of this patent
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Abstract
The present disclosure provides a composition. The composition is crosslinkable and includes an ethylene silane-copolymer, an oil-extended ethylene-propylene-diene monomer (EPDM), and a crosslink catalyst. The present disclosure also provides the composition after crosslinking. In an embodiment, a crosslinked composition is provided and includes from 55 wt % to 85 wt % of an ethylene-silane copolymer and from 15 wt % to 45 wt % of an oil-extended EPDM. The crosslinked composition has: (a) a flexural modulus of 50 MPa to 160 MPa; and (b) a hot set elongation greater than 10%. The crosslinked composition can be used as a coating for a coated conductor.
Claims5
A crosslinked composition comprising:
- from 55 wt % to 85 wt % of an ethylene-silane copolymer;
- from 15 wt % to 45 wt % of an oil-extended EPDM;
- wherein the crosslinked composition has:
- (a) a flexural modulus from 50 MPa to 120 MPa;
- (b) a hot set elongation greater than 10%;
- and
- (c) a Shore D hardness from 30 to 45.
A coated conductor comprising:
- a conductor;
- and
- a coating on the conductor, the coating comprising a crosslinked composition comprising
- (i) from 55 wt % to 85 wt % of an ethylene-silane copolymer;
- and
- (ii) from 45 wt % to 15 wt % of an oil-extended ethylene-propylene-diene monomer (EPDM);
- and
- the coated conductor has
- a Shore D hardness from 30 to 45, and
- a flexural modulus from 50 MPa to 120 MPa.
A coated conductor comprising:
- a conductor;
- and
- a coating on the conductor, the coating comprising a crosslinked composition comprising
- (i) from 55 wt % to 85 wt % of an ethylene-silane copolymer;
- and
- (ii) from 45 wt % to 15 wt % of an oil-extended ethylene-propylene-diene monomer (EPDM);
- wherein the coated conductor has the following properties:
- a) a tensile strength from 5.0 MPa to 15.0 MPa;
- b) a hot set elongation greater than 10%;
- c) a Shore D hardness from 30 to 45;
- and
- d) a flexural modulus from 50 MPa to 120 MPa.
Dependencies are inferred from the claim text.