Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1998-10-09
2000-05-16
Boykin, Terressa M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 528232, 528271, C08G 6400
Patent
active
06063894&
ABSTRACT:
A process for purifying a substantially unoriented polymer containing an impurity by means of ultrasonic leaching or extraction is described. The process involves contacting a substantially unoriented polymer containing an impurity with a cavitatable liquid, subjecting the substantially unoriented polymer containing an impurity in contact with a cavitatable liquid to ultrasonic radiation at a frequency and intensity sufficient to extract the impurity from the substantially unoriented polymer to form a purified substantially unoriented polymer, and then separating the purified substantially unoriented polymer from the cavitatable liquid containing the extracted impurity. A purified substantially unoriented polymer prepared by such a method is also described.
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Phipps Lloyd Myles
Swenson Eric J.
Advanced Polymer Technologies, L.L.C.
Boykin Terressa M.
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