Cellulose-fiber-dispersing polyolefin resin composite material, pellet and formed body using same, and production method for cellulose-fiber-dispersing polyolefin resin composite material
US-2020190305-A1 · Jun 18, 2020 · US
Cellulose fiber-reinforced polyolefin resin composition and resin molded product
US11655358B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11655358-B2 |
| Application number | US-202217676473-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 21, 2022 |
| Priority date | Mar 31, 2021 |
| Publication date | May 23, 2023 |
| Grant date | May 23, 2023 |
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Abstract
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A cellulose fiber-reinforced polyolefin resin composition contains a polyolefin resin, a cellulose fiber having a fiber length of 1 μm or more, an acid-modified elastomer, and high-density polyethylene. In the composition, an amount of the cellulose fiber is 6 to 95 parts by mass relative to 100 parts by mass of the polyolefin resin, an amount of the acid-modified elastomer is 0.5 to 1.2 times by mass the amount of the cellulose fiber; and, an amount of the high-density polyethylene is 15 to 55 parts by mass relative to 100 parts by mass of the polyolefin resin.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cellulose fiber-reinforced polyolefin resin composition comprising a polyolefin resin, a cellulose fiber having a fiber length of 1 μm or more, an acid-modified elastomer, and high-density polyethylene, wherein: an amount of the cellulose fiber is 6 to 95 parts by mass relative to 100 parts by mass of the polyolefin resin; an amount of the acid-modified elastomer is 0.5 to 1.2 times by mass the amount of the cellulose fiber; and an amount of the high-density polyethylene is 15 to 55 parts by mass relative to 100 parts by mass of the polyolefin resin. 2. The cellulose fiber-reinforced polyolefin resin composition according to claim 1 , wherein the acid-modified elastomer is present so as to be in contact with a periphery of the cellulose fiber, and the high-density polyethylene is present so as to be within the acid-modified elastomer or in contact with a periphery of the acid-modified elastomer. 3. A cellulose fiber-reinforced polyolefin resin composition comprising a polyolefin resin, a cellulose fiber having a fiber length of 1 μm or more, an acid-modified elastomer, and high-density polyethylene, wherein: the composition exhibits a specific rigidity (=flexural modulus (at room temperature)/specific gravity) of 1,700 MPa or more; and the composition exhibits a Charpy impact strength (at room temperature) of 7 kJ/m 2 or more. 4. The cellulose fiber-reinforced polyolefin resin composition according to claim 1 , wherein the polyolefin resin is a polypropylene resin. 5. The cellulose fiber-reinforced polyolefin resin composition according to claim 2 , wherein the polyolefin resin is a polypropylene resin. 6. The cellulose fiber-reinforced polyolefin resin composition according to claim 3 , wherein the polyolefin resin is a polypropylene resin. 7. A resin molded product produced by molding of the cellulose fiber-reinforced polyolefin resin composition according to claim 1 . 8. A resin molded product produced by molding of the cellulose fiber-reinforced polyolefin resin composition according to claim 2 . 9. A resin molded product produced by molding of the cellulose fiber-reinforced polyolefin resin composition according to claim 3 . 10. The resin molded product according to claim 7 , wherein the resin molded product is an interior or exterior part for an automobile. 11. The resin molded product according to claim 8 , wherein the resin molded product is an interior or exterior part for an automobile. 12. The resin molded product according to claim 9 , wherein the resin molded product is an interior or exterior part for an automobile.
Assignees
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Classifications
Fibres; Fibrils · CPC title
- C08L23/12Primary
Polypropene · CPC title
containing four or more polymers in a blend · CPC title
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- What does patent US11655358B2 cover?
- A cellulose fiber-reinforced polyolefin resin composition contains a polyolefin resin, a cellulose fiber having a fiber length of 1 μm or more, an acid-modified elastomer, and high-density polyethylene. In the composition, an amount of the cellulose fiber is 6 to 95 parts by mass relative to 100 parts by mass of the polyolefin resin, an amount of the acid-modified elastomer is 0.5 to 1.2 times …
- Who is the assignee on this patent?
- Toyoda Gosei Kk
- 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 May 23 2023 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).