Modified heterophasic polyolefin composition
US-2016257810-A1 · Sep 8, 2016 · US
Method for making heterophasic polymer compositions
US10100187B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10100187-B2 |
| Application number | US-201615256077-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 2, 2016 |
| Priority date | Sep 13, 2015 |
| Publication date | Oct 16, 2018 |
| Grant date | Oct 16, 2018 |
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 method for modifying a heterophasic polymer composition comprises the steps of providing a compatibilizing agent, providing a heterophasic polymer composition comprising a propylene polymer phase and an ethylene polymer phase, mixing the compatibilizing agent and the heterophasic polymer composition, and generating free radicals in the propylene phase and the ethylene phase. At least a portion of the compatibilizing agent then reacts with free radicals in both the propylene polymer phase and the ethylene polymer phase to form a bond with a propylene polymer in the propylene polymer phase and a bond with an ethylene polymer in the ethylene polymer phase.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for modifying a heterophasic polymer composition, the method comprising the steps of: (a) providing a compatibilizing agent, the compatibilizing agent comprising two or more functional groups capable of reacting with a free radical in a radical addition reaction; (b) providing a heterophasic polymer composition, the heterophasic polymer composition comprising a propylene polymer phase and an ethylene polymer phase, and the heterophasic polymer composition having a number-average sequence length of ethylene runs of 3 or more; (c) mixing the compatibilizing agent and the heterophasic polymer composition; and (d) generating free radicals in the propylene polymer phase and the ethylene polymer phase, whereby at least a portion of the compatibilizing agent reacts with free radicals in both the propylene polymer phase and the ethylene polymer phase to form a bond with a propylene polymer in the propylene polymer phase and a bond with an ethylene polymer in the ethylene polymer phase. 2. The method of claim 1 , wherein the heterophasic polymer composition comprises about 6 wt. % or more ethylene based on the total weight of the heterophasic polymer composition. 3. The method of claim 1 , wherein the heterophasic polymer composition comprises about 10 wt. % or more xylene solubles. 4. The method of claim 1 , wherein about 5 mol. % or more of the ethylene present in the heterophasic polymer composition is present in ethylene triads. 5. The method of claim 1 , wherein about 30 mol. % or more of the ethylene present in a 60° C. temperature rising elution fractionation (TREF) fraction of the heterophasic polymer composition is present in ethylene triads. 6. The method of claim 1 , wherein about 30 mol. % or more of the ethylene present in an 80° C. temperature rising elution fractionation (TREF) fraction of the heterophasic polymer composition is present in ethylene triads. 7. The method of claim 1 , wherein about 5 mol. % or more of the ethylene present in a 100° C. temperature rising elution fractionation (TREF) fraction of the heterophasic polymer composition is present in ethylene triads. 8. The method of claim 1 , wherein the number-average sequence length of ethylene runs present in a 60° C. temperature rising elution fractionation (TREF) fraction of the heterophasic polymer composition is 3 or more. 9. The method of claim 1 , wherein number-average sequence length of ethylene runs present in an 80° C. temperature rising elution fractionation (TREF) fraction of the heterophasic polymer composition is 7 or more. 10. The method of claim 1 , wherein the number-average sequence length of ethylene runs present in a 100° C. temperature rising elution fractionation (TREF) fraction of the heterophasic polymer composition is 10 or more.
Assignees
Inventors
Classifications
Heterocyclic compounds having nitrogen in the ring · CPC title
Nitrogen containing compounds · CPC title
- C08J3/246Primary
Intercrosslinking of at least two polymers · CPC title
Peroxides · CPC title
Ethylene-propylene or ethylene-propylene-diene copolymers · 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 US10100187B2 cover?
- A method for modifying a heterophasic polymer composition comprises the steps of providing a compatibilizing agent, providing a heterophasic polymer composition comprising a propylene polymer phase and an ethylene polymer phase, mixing the compatibilizing agent and the heterophasic polymer composition, and generating free radicals in the propylene phase and the ethylene phase. At least a portio…
- Who is the assignee on this patent?
- Milliken & Co
- What technology area does this patent fall under?
- Primary CPC classification C08J3/246. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 16 2018 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).