Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Patent
1995-04-11
1996-04-02
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Process of treating scrap or waste product containing solid...
521 405, 521 415, 521 43, 521 435, 521 465, 525445, 528481, 528486, 528487, 528489, 528496, 528503, C08J 1104
Patent
active
055041221
ABSTRACT:
Dimethyl terephthalate is recovered from polymer mixtures containing polymers of terephthalic acid and glycol and a chloride polymer, by adding base to neutralize the hydrochloric acid formed by the degradation of the chloride polymer.
REFERENCES:
patent: 5120768 (1992-06-01), Sisson
patent: 5393916 (1995-02-01), Gamble
patent: 5395858 (1995-03-01), Schwartz, Jr.
Michel Robert E.
Williamson George M.
Acquah Samuel A.
E. I. Du Pont de Nemours and Company
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