Polymer composition for bumpers and interiors and polyethylene-based resin precursor
US-9650505-B2 · May 16, 2017 · US
Reinforced polypropylene composition
US10208193B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10208193-B2 |
| Application number | US-201314898682-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 24, 2013 |
| Priority date | Jun 24, 2013 |
| Publication date | Feb 19, 2019 |
| Grant date | Feb 19, 2019 |
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- Title
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- Abstract
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Abstract
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Embodiments of the invention provide a reinforced polypropylene comprising a multi-modal molecular weight distribution elastomer and a block composite.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition comprising: polypropylene; an elastomer having a multi-mode molecular weight distribution; a block composite; and, optionally, a filler, wherein the elastomer having a multi-mode molecular weight distribution has a high molecular weight fraction and a low molecular weight fraction, wherein the low molecular weight fraction has a weight average molecular weight ranging from 5 kg/mol to 50 kg/mol, wherein the elastomer having a multi-mode molecular weight distribution comprises an I 10 /I 2 of from 18 to 36 and an overall Mw/Mn ratio of from 7.04 to less than 13.81, and wherein the difference of the I 10 /I 2 and the overall M w /M n ratio is from 10.96 to 22.19. 2. The composition of claim 1 wherein the high molecular weight fraction has a weight average molecular weight ranging from 75 kg/mol to 600 kg/mol. 3. The composition of claim 1 wherein the high molecular weight fraction has a comonomer content that is at least 10 wt % greater than that of the low molecular weight fraction.
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Classifications
Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers · CPC title
- C08L23/12Primary
Polypropene · CPC title
Silicon-containing compounds · CPC title
with aliphatic 1-olefins containing one carbon-to-carbon double bond · CPC title
Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title
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Frequently asked questions
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- What does patent US10208193B2 cover?
- Embodiments of the invention provide a reinforced polypropylene comprising a multi-modal molecular weight distribution elastomer and a block composite.
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08L23/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 19 2019 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).