Method and plasticating extruder for producing fiber-reinforced polymer compositions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 29, 2001
Grant Date -
N/A
app pub date -
Aug 13, 1999
filing date -
Aug 13, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for producing fiber-reinforced polymer compositions and a plasticating extruder for carrying out the method. The method includes passing the fiber strand along at least one coating nozzle into a feed opening; winding the fiber strand onto and around at least one extruder shaft; drawing the fiber strand into barrel bores of a screw barrel; applying a liquid polymer onto a first flat side of the fiber strand from the first coating nozzle; pressing a second side of the fiber strand into a liquid polymer film that was already applied on the screw shaft; and feeding the polymer impregnated fiber strand into screw barrels in a discharge and conveying zone. The plasticating extruder has a drawing-in and impregnating zone and a discharge and conveying zone. The plasticating extruder has a heater. In the drawing-in and impregnating zone, there are a first barrel; a polymer feed including at least one coating nozzle; first barrel bores in the first barrel; rotationally driven first extruder shafts in the first barrel bores; and a feed opening in the first barrel for introducing a fiber strand into the first barrel bores. In the discharge and conveying zone, there are a second barrel; a cutting edge at an entrance to the second barrel; second barrel bores in the second barrel; and rotationally driven second extruder shafts in the second barrel bores.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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MASCHINENFABRIK J DIEFFENBACHER GMBH & CO | POSTFACH 162 EPPINGEN 75020 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Therolf, Dieter | Vaihingen/Enz, DE | 5 | 41 |
# of filed Patents : 5 Total Citations : 41 |
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Patent Citation Ranking
- 16 Citation Count
- B05D Class
- 53.99 % this patent is cited more than
- 24 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Nov 15, 2012 | P | Published | |
Nov 24, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHOR-MING, MA;REEL/FRAME:027387/0747 Owner name: BUZZ BEE TOYS (H.K.) COMPANY LIMITED, HONG KONG Effective Date: Nov 24, 2011 |
Oct 14, 2011 | F | Filing | |
May 13, 2011 | PD | Priority Date |

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