Comb-Block High Density Polyethylenes and Methods of Making Them
US-2017275409-A1 · Sep 28, 2017 · US
Polyolefin compositions
US11028196B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11028196-B2 |
| Application number | US-201816193986-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 16, 2018 |
| Priority date | Dec 22, 2017 |
| Publication date | Jun 8, 2021 |
| Grant date | Jun 8, 2021 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A composition comprising vinyl-terminated polyethylene having an Mn from about 200 g/mol to about 10,000 g/mol; and a comb polyolefin having polyethylene arms attached to a random copolymer backbone, said backbone including units derived from an alpha-olefin having 3 or more carbon atoms, where the polyethylene arms have an Mn from about 200 g/mol to about 10,000 g/mol, and where the comb polyolefin has an Mp from about 7,500 to about 400,000 g/mol.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising: (i) from about 5 to about 50 wt % of a vinyl-terminated polyethylene having an Mn from about 200 g/mol to about 10,000 g/mol; and (ii) from about 50 to about 95 wt % of a comb polyolefin having polyethylene arms attached to a random copolymer backbone, said backbone including a majority of units derived from propylene, as determined by molar percentage of units, wherein the polyethylene arms have an Mn from about 200 g/mol to about 10,000 g/mol, and wherein the comb polyolefin has an Mp from about 7,500 to about 400,000 g/mol. 2. The composition of claim 1 , where the vinyl-terminated polyethylene have an Mn from about 1500 g/mol to about 6,000 g/mol. 3. The composition of claim 1 , where the comb polyolefin has an Mp from about 20,000 to about 200,000. 4. The composition of claim 1 , where the backbone further includes units derived from ethylene. 5. The composition of claim 1 , where the comb polyolefin is a random copolymer including units derived from vinyl-terminated polyethylene, from ethylene, and from propylene. 6. The composition of claim 1 , where the composition includes from about 15 to about 40 wt % of the vinyl-terminated polyethylene and from about 60 to about 85 wt % of the comb polyolefin.
Assignees
Inventors
Classifications
- C08F210/06Primary
Propene · CPC title
in combination with another component of C08F4/64 · CPC title
Polymers of hydrocarbons as defined in group C08F10/00 · CPC title
grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond · CPC title
two cyclopentadienyl rings being mutually non-bridged · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11028196B2 cover?
- A composition comprising vinyl-terminated polyethylene having an Mn from about 200 g/mol to about 10,000 g/mol; and a comb polyolefin having polyethylene arms attached to a random copolymer backbone, said backbone including units derived from an alpha-olefin having 3 or more carbon atoms, where the polyethylene arms have an Mn from about 200 g/mol to about 10,000 g/mol, and where the comb polyo…
- Who is the assignee on this patent?
- Exxonmobil Chemical Patents Inc
- What technology area does this patent fall under?
- Primary CPC classification C08F210/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 08 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).