Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Forming plural articles
Patent
1993-07-27
1996-03-19
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Forming plural articles
264311, 264313, 425430, 425434, 425435, 425DIG44, 426280, 426514, 426515, A23G 312, A23P 100
Patent
active
055001785
ABSTRACT:
A method of manufacturing hollow molded articles having a beautiful surface at a low cost and by a simple and efficient process includes providing a hollow elastic molding die made of an elastic film and having an opening port, feeding a material to be molded of an amount smaller than the internal volume of the elastic molding die into the elastic molding die through the opening port, closing the opening port, solidifying the material to be molded while the elastic molding die is rotated to all directions, and parting the solidified hollow molded article from the elastic molding die. Arrangement for preventing the elastic molding die from being deformed while it is rotated to all directions includes holding it firm by a solid holding member conforming to the external shape thereof or by positioning it in a fluid or powdery material holding member.
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Patent Abstracts of Japan vol. 13, No. 310 (M-850) 14 Jul. 1989 & JPA 01 097 611 (Inoue Hiroshi et al.) 17 Apr. 1989.
Hayashi Toshihiro
Horiguchi Itaru
Kohno Hiroshige
Watanabe Akinori
Aftergut Karen
Asahi Denka Kogyo Kabushikikaisya
Okamoto Industries Inc.
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