Title:
MOLDING METHOD FOR PREFORM
Document Type and Number:
Japanese Patent JP2003136583
Kind Code:
A
Abstract:
To provide a molding method for a preform which has a layer of a blend of a plurality of resins, wherein a dispersed state of the blend is homogeneous and fine and also the degree of thermal deterioration of each resin constituent is suppressed and which is obtained by a compression molding method.
In this molding method for the preform, a first resin is plasticized in a multiaxial extruder with a side feed and a second resin is fed from the side feed into the first plasticized resin and mixed therewith. A molten composite resin block thus obtained is carried to a compression molding position and subjected to compression molding.
Inventors:
KOMATSU IKUO
IMATANI TSUNEO
WATANABE KAZUNOBU
ETO MAKOTO
IMATANI TSUNEO
WATANABE KAZUNOBU
ETO MAKOTO
Application Number:
JP2001338251A
Publication Date:
May 14, 2003
Filing Date:
November 02, 2001
Export Citation:
Assignee:
TOYO SEIKAN KAISHA LTD
International Classes:
C08J3/20; B29B11/12; B29C31/04; B29C43/36; B29C43/42; B29C49/00; B29C49/02; B29C49/22; B29K67/00; (IPC1-7): B29C49/02; B29B11/12; B29C31/04; B29C49/22; C08J3/20
Attorney, Agent or Firm:
Naozumi Ono (1 person outside)
Previous Patent: EQUIPMENT FOR MOLDING SPRINKLING TUBE
Next Patent: HOLLOW MOLDED BODY AND MOLDING METHOD THEREFOR
Next Patent: HOLLOW MOLDED BODY AND MOLDING METHOD THEREFOR