Title:
【発明の名称】ポリプロピレン・木粉系複合材の改質方法
Document Type and Number:
Japanese Patent JP2769776
Kind Code:
B2
Abstract:
PURPOSE:To provide a method for modifying a polypropylene and wooden powder composite material in which impact resistance characteristics are improved without considerably lowering a flexural modulus and a heat distortion temperature, etc., of the material. CONSTITUTION:A method for modifying a polypropylene and wooden powder composite material comprises the steps of adding fine particles obtained by grinding painted polypropylene bumper (particularly disposed painted PP bumper) to 1.1 times as large as wooden powder or lower without removing a paint film to polypropylene and wooden powder mixture containing 65wt.% or more of wooden powder mixing ratio to mixed polypropylene in a range of 4-20% of a weight of the polypropylene in the mixture, agitating and mixing the added mixture, and extruding it by an extruder under a higher temperature condition than a normal temperature.
Inventors:
Fumio Goto
Kasahara Yasumasa
Kasahara Yasumasa
Application Number:
JP34034193A
Publication Date:
June 25, 1998
Filing Date:
December 09, 1993
Export Citation:
Assignee:
Namba Press Industry Co., Ltd.
International Classes:
B29B7/44; B29B11/10; B29B13/10; B29B17/00; B29B17/04; B29C48/07; B29C48/08; C08J11/00; B29K23/00; B29K105/26; B29K311/14; (IPC1-7): C08J11/00; B29B7/44; B29B11/10; B29B13/10; B29B17/00
Domestic Patent References:
| JP6100726A |
Attorney, Agent or Firm:
Sumio Takeuchi (1 outside)
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