JPS562139A - Manufcture of foaming polystyrene molding integrally having bark layer - Google Patents
Manufcture of foaming polystyrene molding integrally having bark layerInfo
- Publication number
- JPS562139A JPS562139A JP7843979A JP7843979A JPS562139A JP S562139 A JPS562139 A JP S562139A JP 7843979 A JP7843979 A JP 7843979A JP 7843979 A JP7843979 A JP 7843979A JP S562139 A JPS562139 A JP S562139A
- Authority
- JP
- Japan
- Prior art keywords
- foaming
- grains
- metal molds
- resin
- bark
- 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.)
- Granted
Links
Abstract
PURPOSE: To manufacture the titled moldings which are excellent in dimension stability and have elastic force and righting moment on the surface portion by a method wherein synthetic resin is injected in a melting shape and applied on a bark forming surface in metal molds for molding a foaming body, and preparatory foaming grains are filled and foamed and molded.
CONSTITUTION: Thermoplastic resin 8, which is the 300% modulus of PE, PP, etc. and is 50kg f/cm2 or less, is injected in a melting shape and applied on a bark forming surface 2 with an uneven pattern of a female mold 1b of metal molds 1 for molding a foaming body so that the resin be made up in approximately uniform thickness, a male mold 1a to which a proper number of exhaust holes 5 are formed is covered, and the metal molds 1 are closed. The preparatory foaming grains 9 of PS are charged and filled into the metal molds 1, steam is sent in from the steam holes 4 of the male mold 1a to heat the grains, the grains 9 are foamed, the grains 9 are mutually bonded, foaming bodies 9' are molded while the resin 8 is attached in a melting shape, bonded and unified on the surfaces of the foaming bodies 9', the metal molds 1 are cooled, the male mold 1a and the female mold 1b are divided, and foaming PS moldings 3 integrally having a bark layer 8' are extracted.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54078439A JPS593138B2 (en) | 1979-06-21 | 1979-06-21 | Method for producing a foamed polystyrene molded product having an integral skin layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54078439A JPS593138B2 (en) | 1979-06-21 | 1979-06-21 | Method for producing a foamed polystyrene molded product having an integral skin layer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS562139A true JPS562139A (en) | 1981-01-10 |
JPS593138B2 JPS593138B2 (en) | 1984-01-23 |
Family
ID=13662061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54078439A Expired JPS593138B2 (en) | 1979-06-21 | 1979-06-21 | Method for producing a foamed polystyrene molded product having an integral skin layer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS593138B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6085914A (en) * | 1983-08-16 | 1985-05-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Manufacture of molded resin item with metallic layer |
JPS6114917A (en) * | 1984-07-02 | 1986-01-23 | Nippon Shokubai Kagaku Kogyo Co Ltd | Manufacturing method of resin molded parts with metal layer |
JPS6153016A (en) * | 1984-08-23 | 1986-03-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Manufacture of metal/synthetic resin composite molded item |
-
1979
- 1979-06-21 JP JP54078439A patent/JPS593138B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6085914A (en) * | 1983-08-16 | 1985-05-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Manufacture of molded resin item with metallic layer |
JPS6114917A (en) * | 1984-07-02 | 1986-01-23 | Nippon Shokubai Kagaku Kogyo Co Ltd | Manufacturing method of resin molded parts with metal layer |
JPS6153016A (en) * | 1984-08-23 | 1986-03-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Manufacture of metal/synthetic resin composite molded item |
Also Published As
Publication number | Publication date |
---|---|
JPS593138B2 (en) | 1984-01-23 |
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