JPS56154041A - Molding method of mold coat - Google Patents
Molding method of mold coatInfo
- Publication number
- JPS56154041A JPS56154041A JP5718680A JP5718680A JPS56154041A JP S56154041 A JPS56154041 A JP S56154041A JP 5718680 A JP5718680 A JP 5718680A JP 5718680 A JP5718680 A JP 5718680A JP S56154041 A JPS56154041 A JP S56154041A
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- polyurethane foam
- isocyanate
- decolorization
- elongation
- 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
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To improve the property of decolorization of a coating film while maintaining the rate of elongation at break of a polyurethane foam with the coating film by injecting an undiluted polyurethane foam solution into molding dies on the inside surfaces of which the coating film of nonyellowed one-liquid type linear-polyurethane including isocyanate is formed. CONSTITUTION:On the inside surfaces of the molding dies is formed the coating film by using a solution prepared by adding 2-5pts.wt. of aromatic or aliphatic isocyanate to 100pts.wt. of nonyellowed one-liquid type linear-polyurethane on a solid basis and later the undiluted polyurethane foam solution is injected therein, whereby the polyurethane foam with the coating film is molded. With the increase in the quantity of addition of the aforesaid isocyanate, the property of decolorization of the coating film is improved, while the rate of elongation at break lowers, and even when the isocyanate is added beyond 5pts.wt., the property of decolorization of the coating film is not improved remarkably and only the rate of elongation at break thereof lowers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5718680A JPS56154041A (en) | 1980-04-30 | 1980-04-30 | Molding method of mold coat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5718680A JPS56154041A (en) | 1980-04-30 | 1980-04-30 | Molding method of mold coat |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56154041A true JPS56154041A (en) | 1981-11-28 |
JPH023685B2 JPH023685B2 (en) | 1990-01-24 |
Family
ID=13048459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5718680A Granted JPS56154041A (en) | 1980-04-30 | 1980-04-30 | Molding method of mold coat |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56154041A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0328659U (en) * | 1989-07-27 | 1991-03-22 |
-
1980
- 1980-04-30 JP JP5718680A patent/JPS56154041A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH023685B2 (en) | 1990-01-24 |
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