Plastic and nonmetallic article shaping or treating: processes – Recycling of reclaimed or purified process material – Vaporizing to recycle liquid
Patent
1998-02-23
1999-11-09
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Recycling of reclaimed or purified process material
Vaporizing to recycle liquid
264 3726, 264101, 2642096, 26421124, 26433115, 26433118, 525 54, 526 65, 526 67, 526 68, 526 70, 526 71, 5263291, 5263292, 5263297, B29C 4776
Patent
active
059807903
ABSTRACT:
A high quality copolymer of styrene and methyl methacrylate is economically produced by polymerizing styrene and methyl methacrylate in a homogeneous solution of raw materials comprising methyl methacrylate, styrene, and an antioxidant, while the solution of raw materials is continuously supplied to a polymerization reactor including at least one complete-mixing type reaction tank, continuously removing the polymerization product from the polymerization reactor, supplying the polymerization product removed from the polymerization reactor directly to an extruder having a plurality of vents, and extruding a copolymer from the extruder, while volatile matter are removed through the plurality of vents.
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Hieda Shin-ichi
Higuchi Yasushi
Kurokawa Masahiro
Kuwahara Shojiro
Jones Kenneth M.
Mitsubishi Gas Chemical Company Inc.
Silbaugh Jan H.
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