B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
18/1211, 259/42.
B29B 13/02 (2006.01) B29C 47/52 (2006.01) B29C 47/92 (2006.01)
Patent
CA 1142319
Process and Apparatus for Processing Plastic and Polymeric Materials ABSTRACT OF THE DISCLOSURE: Novel and improved processes and apparatus for processing particulate plastic or polymeric materials which can be converted to the liquid state. Essentially, the process and apparatus involve feeding a particulate material to an annular processing passage for melting and controlled processing. The annular processing passage is provided by two elements. One is a rotatable element carrying at least one processing channel. The other element is stationary and provides a complementary, coaxial surface arranged with the channel to provide the enclosed processing passage. Also associated with the stationary element are an inlet for feeding material to the passage, an outlet for discharging material and a member or members extending into the processing channel providing a material restraining surface between the inlet and outlet and a material collecting end wall surface for the passage. Rotation of the rotatable element provides a coaction between the rotatable element and material restraining surface providing member which establishes relative movement between the rotating inner channel wall surfaces and the restrained particulate material. Because of the relative movement, only liquid (melted) material in contact with the rotating channel walls is dragged forward to the material collecting end wall surface for controlled processing and discharge.
340883
Hold Peter
Tadmor Zehev
Valsamis Lefteris N.
Corporation Usm
Swabey Ogilvy Renault
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