Expandable functional TFE copolymer fine powder, the expandable functional products obtained therefrom and reaction of the expanded products
US-9221926-B2 · Dec 29, 2015 · US
Polyolefin-based resin expanded beads comprising inorganic fillers
US9410025B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9410025-B2 |
| Application number | US-201414555967-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 28, 2014 |
| Priority date | Dec 11, 2013 |
| Publication date | Aug 9, 2016 |
| Grant date | Aug 9, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
An inorganic filler-containing, polyolefin-based resin expanded bead having an expanded core layer of a first polyolefin-based resin, and a cover layer of a second polyolefin-based resin that covers the expanded core layer, wherein a weight ratio of the cover layer to the expanded core layer is 1:99 to 20:80, the expanded core layer contains an inorganic filler in a weight percentage amount of 5 to 90%, and the cover layer contains no inorganic filler or contains an inorganic filler in a weight percentage amount lower than that in the expanded core layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A polyolefin-based resin expanded bead, comprising an expanded core layer comprising a first polyolefin-based resin, and a cover layer that covers the expanded core layer and that comprises a second polyolefin-based resin, wherein a weight ratio of the cover layer to the expanded core layer is 1:99 to 20:80, the expanded core layer contains an inorganic filler in a weight percentage amount of 30% or more and 90% or less, and the cover layer contains no inorganic filler or contains an inorganic filler, which is the same or different from the inorganic filler contained in the expanded core layer, in a weight percentage amount lower than that of the inorganic filler in the expanded core layer. 2. The polyolefin-based resin expanded bead according to claim 1 , wherein the first polyolefin-based resin contains a carboxylic acid-modified or carboxylic acid anhydride-modified polyolefin resin in such an amount that a carboxylic acid or carboxylic acid anhydride component content in the first polyolefin-based resin is 0.15 to 10% by weight. 3. The polyolefin-based resin expanded bead according to claim 1 , wherein the weight percentage amount of the inorganic filler in the cover layer is less than 5% or no inorganic filler is contained in the cover layer. 4. The polyolefin-based resin expanded bead according to claim 1 , wherein the expanded core layer contains the inorganic filler in a weight percentage amount of 40 to 80%. 5. The polyolefin-based resin expanded bead according to claim 1 , wherein the inorganic filler is an inorganic oxide.
Assignees
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Classifications
consisting of at least two parts of chemically or physically different materials, e.g. having different densities · CPC title
not modified by chemical after treatment · CPC title
Polyethene · CPC title
by sintering expandable particles · CPC title
not modified by chemical after treatment · CPC title
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- What does patent US9410025B2 cover?
- An inorganic filler-containing, polyolefin-based resin expanded bead having an expanded core layer of a first polyolefin-based resin, and a cover layer of a second polyolefin-based resin that covers the expanded core layer, wherein a weight ratio of the cover layer to the expanded core layer is 1:99 to 20:80, the expanded core layer contains an inorganic filler in a weight percentage amount of …
- Who is the assignee on this patent?
- Jsp Corp
- What technology area does this patent fall under?
- Primary CPC classification C08J9/228. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 09 2016 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).