JPS5664841A - Foamed molding of polypropylene resin - Google Patents

Foamed molding of polypropylene resin

Info

Publication number
JPS5664841A
JPS5664841A JP14253079A JP14253079A JPS5664841A JP S5664841 A JPS5664841 A JP S5664841A JP 14253079 A JP14253079 A JP 14253079A JP 14253079 A JP14253079 A JP 14253079A JP S5664841 A JPS5664841 A JP S5664841A
Authority
JP
Japan
Prior art keywords
during molding
resin
warp
foaming
distortion during
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14253079A
Other languages
Japanese (ja)
Inventor
Masahiro Shibagaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MUTSUMI SANGYO KK
Original Assignee
MUTSUMI SANGYO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MUTSUMI SANGYO KK filed Critical MUTSUMI SANGYO KK
Priority to JP14253079A priority Critical patent/JPS5664841A/en
Publication of JPS5664841A publication Critical patent/JPS5664841A/en
Pending legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To obtain the titled molded product not generating a warp and a distortion during molding by a method wherein a part easily generating the warp and the distortion during molding is thickened and a part utilizing inherent physical properties of a resin is thinned to control the foaming in order to insure a sufficient hinge function.
CONSTITUTION: The part such as an outer protruded peripheral flange 5 of a bottom plate 4 in a main body 1 or an outer protruded peripheral flange 7 of a top plate 6 in a lid 2 losing functions and apperance thereof due to the warp and the distortion during molding is thickened and the foaming of a resin in an interior thereof is carried out easily and sufficiently to prevent said portion from being warped and distorted during molding. Hinge segments 9, 9 of fastening means 8, 8 provided to an opened side flange of the hinge part 3 and the lid 2 is thinned and the foaming of a resin in these portions are prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP14253079A 1979-11-02 1979-11-02 Foamed molding of polypropylene resin Pending JPS5664841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14253079A JPS5664841A (en) 1979-11-02 1979-11-02 Foamed molding of polypropylene resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14253079A JPS5664841A (en) 1979-11-02 1979-11-02 Foamed molding of polypropylene resin

Publications (1)

Publication Number Publication Date
JPS5664841A true JPS5664841A (en) 1981-06-02

Family

ID=15317496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14253079A Pending JPS5664841A (en) 1979-11-02 1979-11-02 Foamed molding of polypropylene resin

Country Status (1)

Country Link
JP (1) JPS5664841A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973155A (en) * 1988-07-29 1990-11-27 Mazda Motor Corporation Method of aiming adjustment for headlights of automotive vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973155A (en) * 1988-07-29 1990-11-27 Mazda Motor Corporation Method of aiming adjustment for headlights of automotive vehicles

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