Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Reexamination Certificate
2004-07-09
2009-08-04
Cain, Edward J (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Process of treating scrap or waste product containing solid...
C521S041000, C521S044000, C521S047000, C521S048500
Reexamination Certificate
active
07569617
ABSTRACT:
The object of the present invention resides in providing a method and instrument of polymer processing treatment, wherein a sudden pressure change due to expansion by gasification of a reactant when it is exhausted from a reacting extruder is given in a little amount to a molding machine for a treated substance, and a change in the amount of the material supplied to the molding machine and a variation in molding are little, and hence continuous and uniform molding is possible. That is, the method of the present invention resides in a method of polymer processing treatment, which includes the steps of: reacting a polymer with a reactant under mixing and stirring at a high temperature and a high pressure in the inside of a reacting extruder to produce the treated substance; introducing said treated substance and a remaining reactant into a reactant-separation tank to separate the treated substance and the reactant; and molding the separated treated substance.
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Goto Toshiharu
Iwamoto Yoshihiko
Kakizaki Jun
Mukaide Masaaki
Yamazaki Takanori
Antonelli, Terry Stout & Kraus, LLP.
Cain Edward J
Hitachi , Ltd.
Hitachi Cable Ltd.
The Japan Steel Works Ltd.
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