Ethylene/C5-C10 alpha-olefin/ polyene interpolymers

Patent metadata

Field	Value
Publication number	US-11345797-B2
Application number	US-201816639681-A
Country	US
Kind code	B2
Filing date	Aug 24, 2018
Priority date	Aug 24, 2017
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

A composition comprising an ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer, wherein the interpolymer meets the following relationship: Tg (° C.)≤[0.625(° C./wt %)XC−55° C.], where Tg is the glass transition temperature of the interpolymer, and XC is the wt % crystallinity of the interpolymer.

First claim

What is claimed is:

1. A composition comprising an ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer, wherein the interpolymer meets the following relationship: Tg (° C.)≤[0.625(° C./wt %)XC−55° C.], where Tg is the glass transition temperature of the interpolymer, and XC is the wt % crystallinity of the interpolymer; and
wherein the interpolymer meets the following relationship: Mw (g/mol)>{1097.8[(g/mol)/MV]*MV+87939(g/mol)}, where Mw is the weight average molecular weight of the interpolymer, and MV is the Mooney Viscosity (ML1+4, 125° C.) of the interpolymer; and
wherein the non-conjugated polyene of the interpolymer is 5-ethylidene-2-norbornene (ENB) or 5-vinyl-2-norbornene (VNB).

2. The composition of claim 1 , wherein the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer meets the following relationship: Mw (g/mol)>{1097.8[(g/mol)/MV]*MV+125000(g/mol)}, where Mw is the weight average molecular weight of the interpolymer, and MV is the Mooney Viscosity (ML1+4, 125° C.) of the interpolymer.

3. The composition of claim 1 , wherein the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer meets the following relationship: Mw (g/mol)>{1097.8[(g/mol)/MV]*MV+165000(g/mol)}, where Mw is the weight average molecular weight of the interpolymer, and MV is the Mooney Viscosity (ML1+4, 125° C.) of the interpolymer.

4. The composition of claim 1 , wherein the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer meets the following relationship: Mw (g/mol)>{1097.8[(g/mol)/MV]*MV+187500(g/mol)}, where Mw is the weight average molecular weight of the interpolymer, and MV is the Mooney Viscosity (ML1+4, 125° C.) of the interpolymer.

5. The composition of claim 1 , wherein the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer meets the following relationship: Mw (g/mol)>{1097.8[(g/mol)/MV]*MV+210000(g/mol)}, where Mw is the weight average molecular weight of the interpolymer, and MV is the Mooney Viscosity (ML1+4, 125° C.) of the interpolymer.

6. The composition of claim 1 , wherein the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer comprises from 30 to 60 wt % polymerized octene, based on the weight of the interpolymer.

7. The composition of claim 1 , wherein the C5-C10 alpha-olefin of the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer is a C6, C7 or C8 alpha-olefin.

8. The composition of claim 1 , wherein the composition further comprises a second an ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer, which differs from the interpolymer in one or more of the following properties: Mw, Mn, MWD, Tg, and/or Mooney Viscosity (ML1+4, 125° C.).

9. The composition of claim 1 , wherein the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer has a Mw from 100,000 g/mole to 600,000 g/mole.

10. The composition of claim 1 , wherein the ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer has a viscosity at 0.1 rad/sec, 190° C., greater than, or equal to, 15,000 Pa·s.

11. The composition of claim 1 , wherein the ethylene/alpha-olefin/nonconjugated polyene interpolymer has a MWD≤5.0.

12. The composition of claim 1 , wherein the composition comprises ≥90 wt % of the ethylene/C5-C10 alpha-olefin/nonconjugated polyene interpolymer, based on the weight of the composition.

13. A composition comprising a first composition that comprises a first ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer, and a second ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer; and wherein the first composition meets the following relationship: Tg FC (° C.)≤0.625(° C./wt %)XC FC −55° C., where Tg FC is the glass transition temperature of the first composition, and XC FC is the wt % crystallinity of the first composition;
wherein the first ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer meets the following relationship: Mw (g/mol)>{1097.8[(g/mol)/MV]*MV+87939(g/mol)}, where Mw is the weight average molecular weight of the interpolymer, and MV is the Mooney Viscosity (ML1+4, 125° C.) of the interpolymer; and
wherein the non-conjugated polyene of the first ethylene/C5-C10 alpha-olefin/non-conjugated polyene interpolymer is 5-ethylidene-2-norbornene (ENB) or 5-vinyl-2-norbornene (VNB).

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

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

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

17. The article of claim 16 , 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.

Assignees

• Dow Global Technologies Llc
• Rohm & Haas

Inventors

• Li Pi Shan Colin
• Sun Lixin
• Manganelli Jeff F
• Clayfield Timothy E

Classifications

• C08L23/0815 Primary

  with aliphatic 1-olefins containing one carbon-to-carbon double bond · CPC title

• C08F210/18

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

• C08F210/14

  Monomers containing five or more carbon atoms · CPC title

• C08L49/00

  Compositions of homopolymers or copolymers of compounds having one or more carbon-to-carbon triple bonds; Compositions of derivatives of such polymers · CPC title