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Reprocess barrier film scrap into sheet.


In tests late last year, a 0.75-in. single-screw lab extruder from Randcastle Extrusion Systems Inc., Cedar Grove Cedar Grove can refer to: Locations
  • Cedar Grove, Alabama
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, N.J., reprocessed five-layer PP/EVOH barrier film into 30-rail monolayer mon·o·lay·er
n.
1. A film or layer one molecule thick formed at the interface between water and either oil or air by a substance such as a partially esterified fatty acid that contains both hydrophobic and hydrophilic groups in the same
 sheet, in which the EVOH EVOH Ethylene Vinyl Alcohol Polymer (chemical industry)  was dispersed into sub-micron-size domains in the PP matrix. The 24:1 L/D L/D Labor and Delivery
L/D Lethal Dose
L/D Lift/Drag (ratio)
L/D Low Dynamic
L/D Limiter/Discriminator
L/D Loading / Discharging Rate (shipping) 
 screw used only two of Randcastle's Recirculator mixing sections to blend these incompatible materials, which would typically require more mixing sections and greater processing length. The customer intends to make two-layer coex sheet out of 60/40 PP and five-layer barrier scrap. Tel: (973) 239-1150 * www.randcastle.com
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Title Annotation:KEEPING UP WITH: Compounding
Publication:Plastics Technology
Date:Feb 1, 2007
Words:96
Previous Article:Warp speed for big twin-screw.(KEEPING UP WITH: Compounding)
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