Functionalized olefin polymers, compositions and articles prepared therefrom, and methods for making the same
US-8981013-B2 · Mar 17, 2015 · US
Highly grafted ethylene-based polymers, highly grafted ethylene-based polymer compositions, and processes for forming the same
US10894852B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10894852-B2 |
| Application number | US-201616061618-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2016 |
| Priority date | Dec 29, 2015 |
| Publication date | Jan 19, 2021 |
| Grant date | Jan 19, 2021 |
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Abstract
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A process to form a functionalized ethylene-based polymer composition comprises reacting an ethylene-based polymer composition in at least one extruder with at least one functionalization agent and at least one free radical initiator at a melt temperature of greater than or equal to 200° C. The functionalized ethylene-based polymer composition has a yellowness index (YI) value of less than or equal to 45 and a functionalization content of greater than or equal to 2.0 wt %, based on the weight of the functionalized ethylene-based polymer composition.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process to form a functionalized ethylene-based polymer composition, said process comprising reacting an ethylene-based polymer composition having less than 1.2 ppm residual titanium metal in at least one extruder with at least one functionalization agent and at least one free radical initiator at a melt temperature of greater than, or equal to 250° C.; and wherein the functionalized ethylene-based polymer composition has a yellowness index value of less than, or equal to, 45, and a gel content (GI200) of less than or equal to 20; and wherein the functionalized ethylene-based polymer composition has a functionalization content of greater than 2.2 wt %, based on the weight of the functionalized ethylene-based polymer composition. 2. The process of claim 1 , wherein the melt temperature is greater than, or equal to, 300° C. 3. The process of claim 1 , wherein the ethylene-based polymer composition has a residual titanium level of less than 1.2 ppm and a residual aluminum level of less than 35 ppm, based on the weight of the ethylene-based polymer composition. 4. The process of claim 1 , wherein the functionalized ethylene-based polymer is an maleic anhydride, functionalized ethylene-based polymer. 5. The process of claim 1 , wherein the ethylene-based polymer composition comprises greater than or equal to 95 wt % of an ethylene-based polymer, based on the total weight of the ethylene-based polymer composition. 6. The process of claim 1 , wherein the ethylene-based polymer is an ethylene/alpha-olefin copolymer, and wherein the ethylene/alpha-olefin copolymer has a density from 0.855 to 0.930 g/cc. 7. A functionalized ethylene-based polymer composition comprising a functionalization content of greater than 2.2 wt %, based on the total weight of the functionalized ethylene-based polymer composition, a yellowness index value of less than or equal to 45, a gel content (GI200) of less than or equal to 20; and less than 1.2 ppm residual titanium metal. 8. An article comprising at least one component formed from the functionalized ethylene-based polymer composition of claim 7 .
Assignees
Inventors
Classifications
- C08F255/02Primary
on to polymers of olefins having two or three carbon atoms · CPC title
Maleic anhydride · CPC title
- C08F210/02Primary
Ethene · CPC title
Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation · CPC title
- C08F255/08Primary
on to polymers of olefins having four or more carbon atoms · CPC title
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- What does patent US10894852B2 cover?
- A process to form a functionalized ethylene-based polymer composition comprises reacting an ethylene-based polymer composition in at least one extruder with at least one functionalization agent and at least one free radical initiator at a melt temperature of greater than or equal to 200° C. The functionalized ethylene-based polymer composition has a yellowness index (YI) value of less than or e…
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08F255/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 19 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).