Process for producing fiber-polymer composites

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United States of America Patent

PATENT NO 11331830
APP PUB NO 20180326620A1
SERIAL NO

15776305

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Abstract

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The present invention relates to a process for the manufacturing of composite materials from natural fibers and thermoplastic polymers. Examples of fibers are wood fibers originating from pulping processes known as refiner pulp (RMP), thermomechanical pulp (TMP) or chemi-thermomechanical pulp (CTMP), but the process can also be applied to other kinds of natural fiber containing raw materials. In the process according to the present invention, fibers are introduced from the blowline or the housing of a refiner into a flash tube dryer, separated from humid air in a cyclone, introduced into a compounder and mixed with at least one thermoplastic polymer and the product is subsequently pelletized. The process according to the present invention is advantageously run as a continuous process.

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Patent Owner(s)

Patent OwnerAddress
WOODCOMPOSITE SWEDEN ABGAMLA NISSASTIGEN 16 HYLTEBRUK 314 32

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bergstrom, Roger Hyltebruk, SE 4 1
Johansson, Conny Laholm, SE 7 36
Kallstrom, Fredrik Hyltebruk, SE 1 0
Kallstrom, Johan Hyltebruk, SE 1 0
Karlsson, Sofi Burseryd, SE 1 0
Malmqvist, Martin Halmstad, SE 4 1
Tornblom, Maria Halmstad, SE 2 1

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