JPS5664841A - Foamed molding of polypropylene resin - Google Patents
Foamed molding of polypropylene resinInfo
- 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
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
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)
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 |
-
1979
- 1979-11-02 JP JP14253079A patent/JPS5664841A/en active Pending
Cited By (1)
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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