METHOD FOR PRODUCING PELLETS FROM FIBER COMPOSITE MATERIALS AND CARBON FIBER CONTAINING PELLET

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United States of America Patent

SERIAL NO

13588130

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method produces pellets from fiber composite materials suitable for further processing in a plastics finishing method. The pellets contain individual carbon fibers, carbon fiber bundles, or a mixture thereof and at least one thermoplastic matrix material. The carbon fibers, carbon fiber bundles, or a mixture thereof are isolated from waste or used parts that contain carbon fiber, laid flat together with the thermoplastic matrix material, compressed into a sheet material under the effect of heat, and subsequently cooled and comminuted into pellets, platelets, or chips. This enables the use of carbon fibers, from production waste components, as reinforcing fibers, whereby an inexpensive raw material is provided and the carbon fibers that are contained in the waste materials are recycled. The final carbon fibers are brought into a pourable and readily meterable form and can be used as raw materials for extrusion or injection molding for example.

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Patent Owner(s)

Patent OwnerAddress
SGL AUTOMOTIVE CARBON FIBERS GMBH CO KGANTON-DITT-BOGEN 5 MUNICH D-80939

International Classification(s)

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  • 2012 Application Filing Year
  • B29B Class
  • 334 Applications Filed
  • 253 Patents Issued To-Date
  • 75.75 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20122013201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
LÜTZKENDORF, RENATE KOENIGSEE, DE 3 16
ORTLEPP, GERALD UHLSTAEDT-KIRCHHASEL, DE 8 30
REUSSMANN, THOMAS RUDOLSTADT, DE 8 30

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Patent Citation Ranking

  • 10 Citation Count
  • B29B Class
  • 12.15 % this patent is cited more than
  • 12 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges13731051111201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 70100 +05101520253035404550556065707580

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