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Patent Searching and Data


Title:
MOLDING OF CYCLIC OLEFINIC COPOLYMER
Document Type and Number:
Japanese Patent JP3460457
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To produce a molded object effectively prevented from the generation of a gelling component when thermoforming is performed by using pellets of a cyclic olefinic copolymer and excellent in optical characteristics such as transparency appearance characteristics and commodity value.
SOLUTION: A lubricant is externally added to resin pellets containing a cyclic olefinic copolymer and the added mixture is melted and kneaded to be thermoformed into a preform which is, in turn, subjected to stretch molding.


Inventors:
Kawaguchi, Koichi
Maruhashi, Kichiji
Oda, Yasuhiro
Application Number:
JP20576996A
Publication Date:
October 27, 2003
Filing Date:
August 05, 1996
Export Citation:
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Assignee:
TOYO SEIKAN KAISHA LTD
International Classes:
C08J5/00; B29B7/88; B29B11/14; B29C49/02; B29C51/02; B29C55/02; B29C55/28; B29K23/00; B29L22/00; (IPC1-7): B29B7/88; B29B11/14; B29C49/02; B29C51/02; B29C55/02; B29C55/28; C08J5/00
Attorney, Agent or Firm:
小野 尚純 (外1名)