Process for making crosslinked cable insulation using high melt strength ethylene-based polymer made in a tubular reactor and optionally modified with a branching agent
US-11912852-B2 · Feb 27, 2024 · US
Thermoplastic resin composition having high durability
US9862825B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9862825-B2 |
| Application number | US-201214007931-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 29, 2012 |
| Priority date | Mar 31, 2011 |
| Publication date | Jan 9, 2018 |
| Grant date | Jan 9, 2018 |
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- Title
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Abstract
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The thermoplastic resin composition according to the present invention includes a thermoplastic resin (A), and a modified ethylene copolymer (B) dispersed and contained therein, wherein the modified ethylene copolymer (B) in the thermoplastic resin composition has an average dispersed particle aspect ratio of 1 to 3.5, and an average dispersed particle diameter of not more than 3 μm. The modified ethylene copolymer (B) is preferably a copolymer, modified with an unsaturated carboxylic acid or a derivative thereof, of ethylene with at least one monomer component selected from the group consisting of (i) olefin components except for ethylene, (ii) diene components and (iii) ester components having an ethylenically unsaturated group.
First claim
Opening claim text (preview).
The invention claimed is: 1. A thermoplastic resin composition is a thermoplastic elastomer alloy, wherein the thermoplastic elastomer alloy comprises a polyurethane-based thermoplastic elastomer (A11) and a modified ethylene-propylene-diene copolymerized rubber (B1), and is obtained by dispersing the modified ethylene-propylene-diene copolymerized rubber (B1) into the polyurethane-based thermoplastic elastomer (A11), wherein the polyurethane-based thermoplastic elastomer (A11) is at least one selected from the group consisting of adipate-based thermoplastic polyurethanes, caprolactone-based thermoplastic polyurethanes, and polytetramethylene ether glycol-based thermoplastic polyurethanes, and forms a continuous phase in the thermoplastic elastomer alloy, wherein the modified ethylene-propylene-diene copolymerized rubber (B1) is a maleic anhydride-modified ethylene-propylene-diene copolymerized rubber, and forms a disperse phase in the thermoplastic elastomer alloy, wherein a content rate of the modified ethylene-propylene-diene copolymerized rubber (B1) is 30 to 60 wt % based on the total content of the polyurethane-based thermoplastic elastomer (A11) and the modified ethylene-propylene-diene copolymerized rubber (B1). 2. The thermoplastic resin composition according to claim 1 , wherein the modified ethylene-propylene-diene copolymerized rubber (B1) in the thermoplastic elastomer alloy has an average dispersed particle aspect ratio of 1 to 3.5 and an average dispersed particle diameter of not more than 3 μm. 3. The thermoplastic resin composition according to claim 1 , wherein a content rate of the modified ethylene-propylene-diene copolymerized rubber (B1) is 50 to 60 wt % based on the total content of the polyurethane-based thermoplastic elastomer (A11) and the modified ethylene-propylene-diene copolymerized rubber (B1). 4. The thermoplastic resin composition according to claim 2 , wherein a content rate of the modified ethylene-propylene-diene copolymerized rubber (B1) is 50 to 60 wt % based on the total content of the polyurethane-based thermoplastic elastomer (A11) and the modified ethylene-propylene-diene copolymerized rubber (B1). 5. The thermoplastic resin composition according to claim 1 , wherein the modified ethylene-propylene-diene copolymerized rubber (B1) in the thermoplastic elastomer alloy has an average dispersed particle aspect ratio of 1.08 to 3.5 and an average dispersed particle diameter of not more than 3 μm.
Assignees
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Classifications
Ethylene-propylene or ethylene-propylene-diene copolymers · CPC title
Polyamides derived from omega-amino carboxylic acids or from lactams thereof (C08L77/10 takes precedence) · CPC title
Compositions of unspecified macromolecular compounds · CPC title
Polyurethanes · CPC title
Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) · CPC title
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- What does patent US9862825B2 cover?
- The thermoplastic resin composition according to the present invention includes a thermoplastic resin (A), and a modified ethylene copolymer (B) dispersed and contained therein, wherein the modified ethylene copolymer (B) in the thermoplastic resin composition has an average dispersed particle aspect ratio of 1 to 3.5, and an average dispersed particle diameter of not more than 3 μm. The modifi…
- Who is the assignee on this patent?
- Kasazaki Toshiaki, Yoshida Takahiko, Shimizu Shoji, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C08L23/26. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 09 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).