# US 9,518,137 B2 · Ethylene propylene-diene interpolymer composition

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,518,137 B2
- Document ID: US9518137B2
- Status: Granted
- Kind: B2
- Application number: 14/364,999
- Filed: 2012-11-30
- Published: 2014-11-20
- Granted: 2016-12-13
- Earliest claimed: 2011-12-13
- Assignees: Dow Global Technologies LLC
- Applicants: Dow Global Technologies LLC
- Inventors: Brian W. Walther; Susan M. Song; Paul J. Caronia; Lin Fu
- Web page: https://patentgrep.com/patent/US9518137B2

## CPC

- C08F 210/02: Ethene
- C08F 4/64193: {OOOO}
- C08F 210/18: with non-conjugated dienes, e.g. EPT rubbers
- C08K 3/00: Use of inorganic substances as compounding ingredients
- C08L 23/083: {with aliphatic polyenes, i.e. containing two or more carbon-to-carbon double bonds}
- C08F 210/06: Propene
- C08F 236/20: unconjugated
- C08F 2500/17: Viscosity
- C08F 2500/25: Cycloolefine
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

The present disclosure is directed to a composition and articles containing the composition. The composition includes an ethylene-propylene-diene interpolymer (EPDM) having a rheology ratio greater than 33. The EPDM also has a molecular weight distribution greater than 3.0. The composition has a dissipation factor less than or equal to 0.01 radians as measured in accordance with ASTM D 150 (130° C., 60 Hz).

## Claims

### Claim 1

A composition comprising:
an ethylene-propylene-diene interpolymer with from 0.1 wt % to 1.0 wt % units derived from diene, the interpolymer having a rheology ratio greater than 33; and a molecular weight distribution greater than 3.0;
the composition having a dissipation factor less than or equal to 0.01 radians as measured in accordance with ASTM D 150 at a temperature of 130° C., and a frequency of 60 Hz after one week of vacuum oven heating at 60° C.

### Claim 2 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer is neat.

### Claim 3 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer comprises less than 3.5 ppm aluminum.

### Claim 4 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer has a Mooney viscosity greater than 18.

### Claim 5 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer comprises
from 60 wt % to 75 wt % units derived from ethylene;
from 15 wt % to 30 wt % units derived from propylene; and
from 0.1 wt % to 1.0 wt % units derived from diene.

### Claim 6 (depends on 1)

The composition of claim 1 wherein the diene is selected from the group consisting of 5-ethylidene-2-norbornene and 5-vinylidene-2-norbornene.

### Claim 7 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer has a dissipation factor less than or equal to 0.01 radians as measured in accordance with ASTM D 150 at a temperature of 130° C., and a frequency of 60 Hz after one week of vacuum oven heating at 60° C.

### Claim 8 (depends on 1)

The composition of claim 1 comprising
from 65 wt % to 90 wt % of the ethylene-propylene-diene interpolymer; and
from 35 wt % to 10 wt % clay.

### Claim 9 (depends on 8)

The composition of claim 8 comprising an additive selected from the group consisting of filler, plasticizer, wax, thermal stabilizer, antioxidant, lead stabilizer, polyolefin, adhesion promoter, coupling agent, and combinations thereof.

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer has a molecular weight distribution from 4.0 to 8.0.

### Claim 12 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer comprises
from 1.0 ppm to less than 3.5 ppm aluminum; and
from 0.1 ppm to less than 0.3 ppm zirconium.

### Claim 13 (depends on 1)

The composition of claim 1 wherein the ethylene-propylene-diene interpolymer has a rheology ratio from greater than 33 to 70.

### Claim 14 (depends on 1)

The composition of claim 1 wherein the composition is boron-free.

### Claim 15 (depends on 1)

The composition of claim 1 wherein the diene is 5-ethylidene-2-norbornene and the composition comprises
from 10 wt % to less than 30 wt % clay; and
an additive selected from the group consisting of filler, plasticizer, wax, thermal stabilizer, antioxidant, lead stabilizer, polyolefin, adhesion promoter, coupling agent, and combinations thereof.

### Claim 16

A composition comprising:
an ethylene-propylene-diene interpolymer comprising
(i) from 60 wt % to 75 wt % units derived from ethylene;
(ii) from 15 wt % to 30 wt % units derived from propylene;
(iii) from 0.1 wt % to 1.0 wt % units derived from diene; and
(iv) from 1.0 ppm to less than 3.5 ppm aluminum; and from 0.1 ppm to less than 0.3 ppm zirconium
wherein the ethylene-propylene-diene interpolymer has
a rheology ratio greater than 33;
a dissipation factor less than or equal to 0.01 radians as measured in accordance
with ASTM D 150 at a temperature of 130° C. and a frequency of 60 Hz after one week of vacuum oven heating at 60° C.; and
a molecular weight distribution greater than 3.0; and
the composition has a dissipation factor less than or equal to 0.01 radians after one week as measured in accordance with ASTM D 150 at a temperature of 130° C., and a frequency of 60 Hz.

### Claim 17 (depends on 16)

The composition of claim 16 wherein the ethylene-propylene-diene interpolymer comprises
from 65 wt % to 75 wt % units derived from ethylene;
from 20 wt % to 30 wt % units derived from propylene; and
from 0.3 wt % to 1.0 wt % units derived from diene.

### Claim 18 (depends on 17)

The composition of claim 17 comprising
from 65 wt % to 90 wt % of the ethylene-propylene-diene interpolymer; and
from 35 wt % to 10 wt % clay.