Ethylene/alpha-olefin/polyene based compositions

Patent metadata

Field	Value
Publication number	US-10160819-B2
Application number	US-201314434208-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Nov 30, 2012
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

The invention provides a composition comprising a first composition that comprises at least one ethylene/alpha-olefin/nonconjugated polyene interpolymer; and wherein the first composition has a Mooney Viscosity (ML1+4, 125C) greater than, or equal to, 10, and wherein the first composition has a “13C NMR % Peak Area,” which is the {[(13C NMR peak area from 21.3 ppm to 21.8 ppm) divided by the (total integral area from 19.5 ppm to 22.0 ppm)]×100}, that is greater than 3.5 percent, as determined by 13C NMR.

First claim

The invention claimed is:

1. A composition comprising a first composition that comprises at least one EPDM; and
wherein the first composition has a Mooney Viscosity (ML1+4, 125° C.) greater than, or equal to, 10, and
wherein the first composition has a “13C NMR % Peak Area,” which is the {[(13C NMR peak area from 21.3 ppm to 21.8 ppm) divided by the (total integral area from 19.5ppm to 22.0 ppm)] ×100}, that is greater than 10.0 percent, as determined by 13C NMR; and
wherein the first composition meets the following relationship: 13C NMR % Peak Area ≥−0.40(C2) +33%,
wherein the “13C NMR % Peak Area” is the {[(13C NMR peak area from 21.3 ppm to 21.8 ppm) divided by the (total integral area from 19.5 ppm to 22.0 ppm)]× 100}, as determined by 13C NMR, and
the “C2” is the weight percent of polymerized ethylene in the first composition, based on the weight of the first composition.

2. The composition of any of claim 1 , wherein the EPDM has a rheology ratio (V0.1/V100 at 190° C.) greater than, or equal to, 20.

3. The composition of claim 1 , wherein the EPDM has a rheology ratio from 20 to 80.

4. The composition of claim 1 , wherein the first composition comprises two EPDMs.

5. The composition of claim 1 , wherein the first composition comprises from 40 to 80 weight percent ethylene, based on the weight of first composition.

6. The composition of claim 1 , wherein the first composition comprises from 0.5 to 10 weight percent of the polyene, based on the weight of first composition.

7. The composition of claim 1 , wherein the first composition has a viscosity at 0.1 rad/sec, 190° C., greater than, or equal to, 40,000 Pa·s.

8. The composition of claim 1 , wherein the first composition has a Mooney Viscosity greater than, or equal to, 20 (ML 1+4, 125° C.).

9. The composition of claim 1 , wherein the EPDM has a MWD less than, or equal to, 4.0.

10. The composition of claim 1 , wherein the first composition has a MWD less than, or equal to, 4.0.

11. The composition of claim 1 , wherein the composition further comprises a crosslinking agent.

12. A crosslinked composition formed from the composition of claim 1 .

13. An article comprising at least one component formed from the composition of claim 1 .

14. The article of claim 13 , wherein the article is selected from the group consisting of profiles, injection molded parts, gaskets, automotive parts, building and construction materials, shoe components, and tubes.

15. The composition of claim 1 , wherein the first composition has a “13C NMR % Peak Area,” which is the {[(13C NMR peak area from 21.3 ppm to 21.8ppm) divided by the (total integral area from 19.5 ppm to 22.0 ppm)] ×100}, that is greater than, or equal to, 16.0 percent, as determined by 13C NMR.

16. The composition of claim 15 , wherein the first composition has a weight average molecular weight (Mw) from 70,000 to 250,000 g/mole.

17. A composition comprising a first composition that comprises at least one EPDM; and
wherein the first composition has a Mooney Viscosity (ML1+4, 125° C.) greater than, or equal to, 10, and a molecular weight distribution (MWD) from 2.0 to 3.0; and
wherein the first composition has a “13C NMR % Peak Area,” which is the {[(13C NMR peak area from 21.3 ppm to 21.8 ppm) divided by the (total integral area from 19.5ppm to 22.0 ppm)] ×100}, that is greater than 5.0 percent, as determined by 13C NMR; and
wherein the first composition meets the following relationship: 13C NMR % Peak Area ≥−0.40(C2) +33%,
wherein the “13C NMR % Peak Area” is the {[(13C NMR peak area from 21.3 ppm to 21.8 ppm) divided by the (total integral area from 19.5 ppm to 22.0 ppm)] ×100}, as determined by 13C NMR, and
the “C2” is the weight percent of polymerized ethylene in the first composition, based on the weight of the first composition.

Assignees

• Dow Global Technologies Llc

Inventors

• Lipishan Colin
• Clayfield Timothy E
• Delatte Sonja M

Classifications

• C08F4/65912

  in combination with an organoaluminium compound · CPC title

• C08F210/18 Primary

  with non-conjugated dienes, e.g. EPT rubbers · CPC title

• C08L2308/00

  Chemical blending or stepwise polymerisation process with the same catalyst · CPC title

• C08F4/65908

  in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+ · CPC title

• C08L2205/025

  containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title