Process for recycling of supported or contaminated PVC
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United States of America Patent
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Aug 3, 1993
Issued Date -
N/A
app pub date -
Apr 21, 1992
filing date -
May 1, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method is provided for recovering PVC from a material including PVC and one or more non-PVC components, in which the material is mixed with a sufficient amount of a plasticizer at an effective temperature, preferably in the range of 100.degree.-200.degree. C., to give a PVC: plasticizer ratio such that the PVC and plasticizer form a mixture which is a liquid at that temperature so that the liquid PVC/plasticizer can be separated from the non-PVC component or components.
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