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US 6,720,383 B2Granted
Curable compositions of chlorinated polyolefin elastomers
AssigneeDuPont Dow Elastomers L.L.C.
InventorsJames Reynolds Barclay, Raymond Lynn Laakso, Jr., Jeff Michael Savoie, Larry Benton White
Life of this patent
Estimating the term…
Abstract
Chlorinated olefin elastomers prepared from olefin polymer base resins having I10 values of 0.05-0.8 dg/minute are blended with curative and at least 300 phr of an additive package to form a curable composition having excellent properties. Cured compositions provide superior insulating layers for wire and cable applications.
Claims12
A curable elastomer composition comprising:
- A) a chlorinated olefin elastomer having a heat of fusion <0.2 calories/gram and having a chlorine content of from 15-48 percent by weight;
- said chlorinated olefin elastomer being prepared from an olefin polymer selected from the group consisting of i) polyethylene homopolymers having I10 values of from 0.05-0.8 dg/minute and ii) copolymers of ethylene and up to 25 weight percent of a copolymerizable monomer, said copolymers having I10 values of from 0.05-0.8 dg/minute;
- B) at least 300 phr of an additive package;
- and
- C) a curative.
2 more elements
A jacket for wire and cable comprising a cured chlorinated olefin elastomer compound, said compound comprising:
- A) a chlorinated olefin elastomer having a heat of fusion <0.2 calories/gram and having a chlorine content of from 15-48 percent by weight;
- said chlorinated olefin elastomer being prepared from an olefin polymer selected from the group consisting of i) polyethylene homopolymers having I10 values of from 0.05-0.8 dg/minute and ii) copolymers of ethylene and up to 25 weight percent of a copolymerizable monomer, said copolymers having I10 values of from 0.05-0.8 dg/minute;
- B) at least 300 phr of an additive package;
- and
- C) a curative.
2 more elements
Dependencies are inferred from the claim text.