Ethylene based interpolymers and composition comprising the same

Patent metadata

Field	Value
Publication number	US-10160817-B2
Application number	US-201515535576-A
Country	US
Kind code	B2
Filing date	Dec 23, 2015
Priority date	Dec 23, 2014
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A first ethylene-based interpolymer comprising, in polymerized form, monomer units derived from ethylene and from a benzocyclobutene (VBCB) structure of Structure 1; wherein n is from 3 to 10; and wherein the ethylene-based polymer comprises, in polymerized form, from 0.02 to 0.70 wt % of the Structure 1, based on the weight of the first ethylene-based interpolymer, as determined by 1H NMR is provided. Further provided is a composition which comprises a second ethylene-based inter-polymer formed by thermally treating a first ethylene-based interpolymer.

First claim

The invention claimed is:

1. A first ethylene-based interpolymer comprising, in polymerized form, monomer units derived from ethylene and from a benzocyclobutene (VBCB) structure of Structure 1:

wherein n is from 3 to 10; and
wherein the ethylene-based interpolymer comprises, in polymerized form, from 0.02 to 0.70 wt % of the Structure 1, based on the weight of the first ethylene-based interpolymer, as determined by 1 H NMR; and
wherein the first ethylene-based interpolymer comprises greater than 99 wt % units, in polymerized form, derived from ethylene, based on the weight of the first ethylene-based interpolymer.

2. The first ethylene-based interpolymer of claim 1 , wherein the first ethylene-based interpolymer has an absolute weight average molecular weight from 20,000 to 150,000 g/mole.

3. The first ethylene-based interpolymer of claim 1 , wherein the first ethylene-based interpolymer has an absolute weight average molecular weight from 80,000 to 100,000 g/mole.

4. A composition comprising:
a first ethylene-based interpolymer comprising, in polymerized form, monomer units derived from ethylene and from a benzocyclobutene (VBCB) structure of Structure 1:

wherein n is from 3 to 10; and
wherein the ethylene-based interpolymer comprises, in polymerized form, from 0.02 to 0.70 wt % of the Structure 1, based on the weight of the first ethylene-based interpolymer, as determined by 1 H NMR; and
wherein the first ethylene-based interpolymer is thermally treated to form a second ethylene-based interpolymer.

5. The composition of claim 4 , wherein the first ethylene-based interpolymer is thermally treated at a temperature above a melting temperature (as measured by DSC) of the first ethylene-based interpolymer.

6. The composition of claim 5 , wherein an Mw(abs) of the second ethylene-based interpolymer is from 5% to 400% greater than an Mw(abs) of the first ethylene-based interpolymer.

7. The composition of claim 4 , wherein the second ethylene-based interpolymer has a density from 0.85 to 0.96 g/cc.

8. The composition of claim 4 , wherein the second ethylene-based interpolymer comprises the following Structure A

and
wherein each n is independently from 3 to 10.

9. The composition of claim 4 , wherein the second ethylene-based interpolymer comprises greater than 60 wt % units, in polymerized form, derived from ethylene, based on the weight of the second ethylene-based interpolymer.

10. The composition of claim 4 , wherein the second ethylene-based interpolymer comprises greater than 80 wt % units, in polymerized form, derived from ethylene, based on the weight of the second ethylene-based interpolymer.

11. The composition of claim 4 , wherein the second ethylene-based interpolymer comprises greater than 99 wt % units, in polymerized form, derived from ethylene, based on the weight of the second ethylene-based interpolymer.

Assignees

• Dow Global Technologies Llc

Inventors

• Spencer Liam P
• Ewart Sean W
• Pearson David M
• Sun Lixin

Classifications

• C08G81/02

  at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds · CPC title

• C08F2420/02

  Cp or analog bridged to a non-Cp X anionic donor · CPC title

• C08F4/65912

  in combination with an organoaluminium compound · CPC title

• C08F210/02 Primary

  Ethene · CPC title

• C08F210/16

  Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title