JPS55150331A - Manufacturing of structual member such as rolling stock and the like - Google Patents
Manufacturing of structual member such as rolling stock and the likeInfo
- Publication number
- JPS55150331A JPS55150331A JP5780079A JP5780079A JPS55150331A JP S55150331 A JPS55150331 A JP S55150331A JP 5780079 A JP5780079 A JP 5780079A JP 5780079 A JP5780079 A JP 5780079A JP S55150331 A JPS55150331 A JP S55150331A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- foaming
- isocianate
- core material
- yellowing
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To obtain a structural member excellent in weather resistance, shock resistance and shock absorptive property by forming a non-foaming urethane film layer using non-yellowing organic isocianate on the inner surface of a mold and then a stock solution of foaming plastics to foam unitarily a core material. CONSTITUTION:A urethane prepolymer obtained by mixing non-yellowing isocianate with polyol for urethane for general use is poured beforehand in the inner part of the mold and thereafter by rotating non-foaming urethane film layer of a thickness of 1-3mm. on the inner surface of the mold. Then, a semi-hard or hard foaming plastic stock solution is injected in the mold through an inlet. The solution is left standing for a predetermined period at ordinary temperature, and is foamed to obtain a core material. Since non-yellowing organic isocianate is used as mentioned above, no discoloration in appearance occures even when the thus obtained core material is exposed outdoor for a long period of time as a structual material for rolling stock or the like.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5780079A JPS55150331A (en) | 1979-05-11 | 1979-05-11 | Manufacturing of structual member such as rolling stock and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5780079A JPS55150331A (en) | 1979-05-11 | 1979-05-11 | Manufacturing of structual member such as rolling stock and the like |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55150331A true JPS55150331A (en) | 1980-11-22 |
JPS6334806B2 JPS6334806B2 (en) | 1988-07-12 |
Family
ID=13065974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5780079A Granted JPS55150331A (en) | 1979-05-11 | 1979-05-11 | Manufacturing of structual member such as rolling stock and the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55150331A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0327914A (en) * | 1989-03-03 | 1991-02-06 | Recticel | Production of article having elastomer shell and synthetic foam core |
US5223193A (en) * | 1990-09-07 | 1993-06-29 | Ecp Enichem Polimeri S.R.L. | Process for preparing shaped bodies with integrated polyurethane skin, and shaped bodies obtained by such process |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0398239U (en) * | 1989-05-12 | 1991-10-11 |
-
1979
- 1979-05-11 JP JP5780079A patent/JPS55150331A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0327914A (en) * | 1989-03-03 | 1991-02-06 | Recticel | Production of article having elastomer shell and synthetic foam core |
JPH072337B2 (en) * | 1989-03-03 | 1995-01-18 | レクティセル | Method of making an article having an elastomeric outer wall and a synthetic foam core |
US5223193A (en) * | 1990-09-07 | 1993-06-29 | Ecp Enichem Polimeri S.R.L. | Process for preparing shaped bodies with integrated polyurethane skin, and shaped bodies obtained by such process |
Also Published As
Publication number | Publication date |
---|---|
JPS6334806B2 (en) | 1988-07-12 |
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