Curable elastomeric compositions
View Patent ↗A curable composition and an article produced therefrom are disclosed in which the composition can comprise an optional first component, a second component, and a third component; the optional first component includes a copolymer derived from ethylene and a polar monomer; the second component includes a copolymer derived from ethylene, a vinyl acetate or alkyl(meth)acrylate, and carbon monoxide; and the third component includes a copolymer derived from ethylene and an alkyl(meth)acrylate or a polymer of alkyl(meth)acrylate.
1. A composition comprising an optional first component, a second component, and a third component wherein
the optional first component is present in the composition from 15 to 85 weight %, based on the total weight of the composition;
the optional first component includes a copolymer derived from ethylene and a polar monomer containing at least 28 weight percent of a polar monomer based on the total weight of the copolymer;
the second component is present in the composition from 5 to 50 weight %, based on the total weight of the composition;
the second component includes a copolymer derived from ethylene, a vinyl acetate or alkyl(meth)acrylate, and carbon monoxide; and
the third component includes a copolymer derived from ethylene and an alkyl(meth)acrylate containing at least 45 weight percent of alkyl(meth)acrylate based on the total weight of the copolymer, a polymer of alkyl(meth)acrylate, or combinations thereof.
2. The composition of claim 1 wherein the polar monomer is vinyl acetate, alkyl(meth)acrylate, or combinations thereof.
3. The composition of claim 1 wherein the composition comprises the optional first component and the polar monomer is vinyl acetate, alkyl(meth)acrylate, or combinations thereof.
4. The composition of claim 3 wherein the polymer of alkyl(meth)acrylate includes homopolymer or copolymer of at least one alkyl(meth)acrylate including ethyl(meth)acrylate, propyl(meth)acrylate, butyl(meth)acrylate, n-pentyl(meth)acrylate, n-hexyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, n-octyl(meth)acrylate, or combinations of two or more thereof.
5. The composition of claim 3 wherein the polymer of alkyl(meth)acrylate includes homopolymer or copolymer of at least one alkyl(meth)acrylate including ethyl(meth)acrylate, propyl(meth)acrylate, butyl(meth)acrylate, n-pentyl(meth)acrylate, n-hexyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, n-octyl(meth)acrylate, or combinations of two or more thereof.
6. The composition of claim 5 wherein the copolymer of ethylene and a polar monomer has a melt flow index of from 0.5 to 100, optionally from 1 to 5, when measured according to ASTM D1238 at 190° C. using a weight of 2.16 Kg.
7. The composition of claim 6 wherein the second component is present in the composition from 15 to 35 weight %, based on the total weight of the composition.
8. The composition of claim 6 wherein the polar monomer is present from 28 to 60 weight %, based on the total weight of the copolymer of ethylene and the polar monomer.
9. An article comprising the composition as recited in claim 1 .
10. The article of claim 9 including automotive part, aerospace part, rail part, or cable.
11. The article of claim 10 wherein the second component is present in the composition from 15 to 35 weight %, based on the total weight of the composition.
12. The article of claim 11 wherein the polar monomer is vinyl acetate, alkyl(meth)acrylate, or combinations thereof.
13. The article of claim 11 wherein the polymer of alkyl(meth)acrylate includes homopolymer or copolymer of at least one alkyl(meth)acrylate including ethyl(meth)acrylate, propyl(meth)acrylate, butyl(meth)acrylate, n-pentyl(meth)acrylate, n-hexyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, n-octyl(meth)acrylate, or combinations of two or more thereof.
14. The article of claim 13 wherein the third component is present in the composition from 45 to 75 weight %, based on the total weight of the composition.
15. The article of claim 14 wherein the polar monomer is present from 28 to 60 weight %, based on the total weight of the copolymer of ethylene and the polar monomer.