B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 43/14 (2006.01) B29C 43/34 (2006.01) B29C 43/58 (2006.01) B29C 45/56 (2006.01)
Patent
CA 2052272
The present invention is directed to a molded article of a thermoplastic resin which is molded with a pair of molds having a conduit for supplying a resin melt in one of the molds by closing the molds until a mold cavity clearance reaches a specific distance, opening the molds at a specific rate while starting supply of the resin melt into the mold cavity before the clearance reaches the thickness of the finally produced article, continuing opening of the molds while supplying the resin melt until the cavity clearance becomes larger than the thickness of the finally produced article, and closing the molds at a specific rate before or when resin supply is finished to mold and cool the supplied resin melt. The molded article of the present invention has improved appearance and is suitable for use in the preparation of conventional molded articles in a variety of fields.
Hara Takahisa
Matsubara Shigeyoshi
Matsumoto Masahito
Usui Nobuhiro
Kirby Eades Gale Baker
Sumitomo Chemical Co. Ltd.
Sumitomo Chemical Company Limited
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