Method and a system for manufacturing a composite product and a composite product
US-2015284540-A1 · Oct 8, 2015 · US
Method and a system for manufacturing a composite product and a composite product
US9574075B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9574075-B2 |
| Application number | US-201214421177-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 28, 2012 |
| Priority date | Aug 28, 2012 |
| Publication date | Feb 21, 2017 |
| Grant date | Feb 21, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
The invention relates to a method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the method comprises mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture. The primary mixing stage comprises a contacting step in which the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, and bulk density of the organic natural fiber material is less than 500 kg/m 3 . The method further comprises forming a composite product comprising the mixture. Further, the invention relates to a composite product, a use of the composite product, and a system for manufacturing a composite product.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the organic natural fiber material is chemical pulp having a lignin content under 1 wt. %, the method comprising: crushing the organic natural fiber material to form bulky organic natural fiber material such that the fiber material is at least partly in the form of flakes after the crushing, mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture, the primary mixing stage comprising a contacting step in which the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, and bulk density of the organic natural fiber material is less than 160 kg/m 3 , the method further comprising: forming a composite product comprising the mixture. 2. The method according to claim 1 , wherein the pressure compressing the organic natural fiber material in the contacting step is less than 1 bar. 3. The method according claim 1 , wherein the organic natural fiber material and the matrix material are mixed in a vacuum or in the presence of nitrogen, air and/or helium. 4. The method according to claim 1 , wherein moisture content of the organic natural fiber material is below 7% in the contacting step of the mixing. 5. The method according to claim 1 , wherein organic natural fiber material content is at least 20 dry wt. % and 80 dry wt. % at the most, calculated from the total dry weight of the composite product. 6. The method according to claim 1 , wherein the amount of flake-form fiber material is at least 30 dry wt. % calculated from the total amount of the organic natural fiber material. 7. The method according to claim 1 , wherein the melting point of the matrix material is under 250° C. and/or the glass transition temperature of the matrix material is under 250° C. 8. The method according to claim 1 , wherein the composite product is formed by an injection moulding, and/or an extrusion. 9. The method according to claim 1 , wherein the matrix material is thermoplastic. 10. The method according to claim 1 , wherein at least 90 wt. % of the organic natural fiber material is wood material. 11. The method according to claim 1 , wherein a length of at least 90 wt. % of the organic natural fiber material is between 0.1 mm and 3 mm.
Assignees
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Classifications
of fillers or of fibrous materials, e.g. short-fibre reinforcements · CPC title
in the form of filamentary material, e.g. combined with extrusion · CPC title
Natural fibres, e.g. wool or cotton · CPC title
Natural fibres, e.g. wool or cotton · CPC title
with paddles or arms · CPC title
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- What does patent US9574075B2 cover?
- The invention relates to a method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the method comprises mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture. The primary mixing stage comprises a contacting step in which the organic natural fiber material comes in contact with th…
- Who is the assignee on this patent?
- Kosonen Harri, Luukko Kari, Turunen Sami, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification B29B7/92. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 21 2017 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).