JPS5682812A - Preparation of molded article of urethane foam having yellowing resistance with integrated skin layer - Google Patents
Preparation of molded article of urethane foam having yellowing resistance with integrated skin layerInfo
- Publication number
- JPS5682812A JPS5682812A JP16070079A JP16070079A JPS5682812A JP S5682812 A JPS5682812 A JP S5682812A JP 16070079 A JP16070079 A JP 16070079A JP 16070079 A JP16070079 A JP 16070079A JP S5682812 A JPS5682812 A JP S5682812A
- Authority
- JP
- Japan
- Prior art keywords
- molded article
- give
- yellowing resistance
- preparation
- skin layer
- 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
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To obtain the titled molded article having improved yellowing resistance, by expanding a composition solution comprising a polyol of a specific copolymer of styrene and acrylonitrile, polyisocyanate, a crosslinking agent, blowing agent, etc., followed by curing.
CONSTITUTION: Styrene and acrylonitrile in a weight ratio of 1/2W3/2 and in total amount 4W25wt% are grafted onto a polyether polyol, e.g., polyoxypropylene glycol etc. to give a graft copolymer, which is blended with a polyisocyanate, e.g., 4,4'- diphenylmethanediisocyanate, etc., having an NCO index 90W120, a crosslinking agent, e.g., ethylene glycol, etc., having a hydroxyl number not less than 300 and two or more OH groups, low-boiling halogenated hydrocarbon, etc. and a catalyst, to give a composition solution for preparing polyurethane. The solution is injected into a closed mold to give the desired molded article.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16070079A JPS5682812A (en) | 1979-12-10 | 1979-12-10 | Preparation of molded article of urethane foam having yellowing resistance with integrated skin layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16070079A JPS5682812A (en) | 1979-12-10 | 1979-12-10 | Preparation of molded article of urethane foam having yellowing resistance with integrated skin layer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5682812A true JPS5682812A (en) | 1981-07-06 |
Family
ID=15720572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16070079A Pending JPS5682812A (en) | 1979-12-10 | 1979-12-10 | Preparation of molded article of urethane foam having yellowing resistance with integrated skin layer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5682812A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3409402A1 (en) | 1983-03-15 | 1984-09-27 | Toyoda Gosei Co., Ltd., Haruhimura, Aichi | NON-YELLOWING, SEMI-RIGID POLYURETHANE FOAM |
-
1979
- 1979-12-10 JP JP16070079A patent/JPS5682812A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3409402A1 (en) | 1983-03-15 | 1984-09-27 | Toyoda Gosei Co., Ltd., Haruhimura, Aichi | NON-YELLOWING, SEMI-RIGID POLYURETHANE FOAM |
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