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US-12152095-B2 · Nov 26, 2024 · US
Propylene-based copolymer, propylene-based copolymer composition, molded product thereof and foamed product thereof, and production process therefor
US9023906B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9023906-B2 |
| Application number | US-201214116100-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 17, 2012 |
| Priority date | May 18, 2011 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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Abstract
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To provide a propylene-based copolymer and a propylene-based copolymer composition, each of which has a high melt tension because it has a long-chain branched structure, exhibits excellent molding processability during molding, such as inflation molding, extrusion molding, blow molding, injection molding or vacuum forming, and is capable of favorably providing a foamed product having an excellent expansion ratio and excellent cell uniformity in the foaming stage. The propylene-based copolymer (A) of the present invention comprises 50 to 95% by mol of constituent units [i] derived from propylene, 4.9 to 49.9% by mol of constituent units [ii] derived from an α-olefin of 2 to 10 carbon atoms other than propylene and 0.1 to 10% by mol of constituent units [iii] derived from a non-conjugated polyene (with the proviso that the total amount of the constituent units [i], [ii] and [iii] is 100% by mol), and is characterized by satisfying specific requirements (a) and (c).
First claim
Opening claim text (preview).
The invention claimed is: 1. A propylene-based copolymer (A) comprising 50 to 95% by mol of constituent units [i] derived from propylene, 4.9 to 49.9% by mol of constituent units [ii] derived from an α-olefin of 2 to 10 carbon atoms other than propylene and 0.1 to 10% by mol of constituent units [iii] derived from a non-conjugated polyene (with the proviso that the total amount of the constituent units [i], [ii] and [iii] is 100% by mol), and satisfying the following requirements (…
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- C08F210/06Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9023906B2 cover?
- To provide a propylene-based copolymer and a propylene-based copolymer composition, each of which has a high melt tension because it has a long-chain branched structure, exhibits excellent molding processability during molding, such as inflation molding, extrusion molding, blow molding, injection molding or vacuum forming, and is capable of favorably providing a foamed product having an excelle…
- Who is the assignee on this patent?
- Okamoto Masahiko, Yasuda Mayumi, Kasai Tetsuji, and 4 more
- 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 May 05 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).