Compositions comprising ethylene-carbon monoxide copolymers

Patent metadata

Field	Value
Publication number	US-10815375-B2
Application number	US-201716096847-A
Country	US
Kind code	B2
Filing date	Apr 19, 2017
Priority date	Apr 29, 2016
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

The invention provides a composition comprising an ethylene-based polymer and wherein the ethylene-based polymer has the following properties: (A) a CO content from greater than 0 to less than 10 weight percent CO (carbon monoxide), based on the weight of the polymer, and (B) a melt index (I2) from 0.1 to less than 3 g/10 min; and (C) a density from 0.923 to 0.928 g/cc; and wherein the ethylene-based polymer has a melting point, Tm, in ° C., that meets the following relationship: Tm (° C.)<601.4*(Density N in g/cc)−447.8° C.

First claim

What is claimed is:

1. A composition comprising an ethylene-based polymer consisting of ethylene, carbon monoxide, and propylene, wherein the ethylene-based polymer has the following properties:
(A) a CO content from 0.2 to 0.9 weight percent CO (carbon monoxide), based on the weight of the polymer; and
(B) a melt index (I 2 ) from 0.3 to 1.0 g/10 min; and
(C) a density from 0.923 to 0.928 g/cc; and
(D) a 2% secant modulus (measured on a compression molded plaque) in the range of 27,000 to 34,000 psi; and
(F) C1 branching; and

wherein the ethylene-based polymer has a melting point, Tm, in ° C., that meets the following relationship: Tm (° C.)<601.4*(Density in g/cc) 447.8° C.

2. The composition of claim 1 , wherein the ethylene-based polymer has a MWD(conv) from 4.0 to 10.0.

3. The composition of claim 1 , wherein the ethylene-based polymer is formed from a high pressure, free-radical polymerization.

4. The composition of claim 1 , wherein the ethylene-based polymer has a melting point, Tm, in ° C., that meets the following relationship: Tm (° C.)<601.4*(Density in g/cc)−448.5 (0C).

5. The composition of claim 1 , wherein the ethylene-based polymer has a melt strength(190°) less than, or equal to, 17.0 cN.

6. The composition of claim 1 , wherein the ethylene-based polymer has an amyl group level greater than, or equal to, 0.5 amyl group per 1000 carbon atoms, as determined by 13C NMR.

7. The composition of claim 1 , wherein the ethylene-based polymer has a melt strength of at least 10.0 cN.

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

9. The article of claim 8 in the form of a film or sheet.

10. The composition of claim 1 , wherein the ethylene-based polymer has a melting temperature from 105° C. to 110° C.

Assignees

• Dow Global Technologies Llc

Inventors

• Karjala Teresa P
• Vigil Jr Alfred E
• Olajide Jr Frances
• Kardos Lori L

Classifications

• C09J173/00

  Adhesives based on macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups C09J159/00 - C09J171/00; Adhesives based on derivatives of such polymers · CPC title

• C09D173/00

  Coating compositions based on macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups C09D159/00 - C09D171/00; Coating compositions based on derivatives of such polymers · CPC title

• C08F210/18

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

• C08G67/02

  Copolymers of carbon monoxide and aliphatic unsaturated compounds · CPC title

• C09D123/08

  Copolymers of ethene (C09D123/16 takes precedence) · CPC title