JPS55164216A - Preparation of impact energy-absorbing urethane foam - Google Patents
Preparation of impact energy-absorbing urethane foamInfo
- Publication number
- JPS55164216A JPS55164216A JP7159179A JP7159179A JPS55164216A JP S55164216 A JPS55164216 A JP S55164216A JP 7159179 A JP7159179 A JP 7159179A JP 7159179 A JP7159179 A JP 7159179A JP S55164216 A JPS55164216 A JP S55164216A
- Authority
- JP
- Japan
- Prior art keywords
- polyol
- urethane foam
- foam
- prepared
- mixture
- 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
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To prepare a urethane foam useful for automobile bumpers, etc. without heat-generation during foaming and without scorch, crack, etc. of the foam, by mixing specific polyol and polyisocyanate with a blowing agent, etc. and foaming the mixture.
CONSTITUTION: (A) A polymer polyol having a hydroxyl value of 20W160 and prepared by grafting 10W30wt%, preferably 10W20wt% of a copolymer of vinyl compounds (e.g. styrene, acrylonitrile, etc.) to a polyether polyol, is mixed with (B) a short chain polyol having a hydroxyl value of 1,000W1,850 (e.g. ethylene glycol), (C) a prepolymer having 20W40wt% of free isocyanate and prepared from (a) an organic polyisocyanate (e.g. toluene diisocyanate) and (b) 2,2'-bis(4-hydroxyphenyl)propane containing 2W7 equivalent of oxypropylene, (D) a reaction catalyst, (E) a blowing agent, (F) a foam stabilizer, etc. and the mixture is foamed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7159179A JPS55164216A (en) | 1979-06-07 | 1979-06-07 | Preparation of impact energy-absorbing urethane foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7159179A JPS55164216A (en) | 1979-06-07 | 1979-06-07 | Preparation of impact energy-absorbing urethane foam |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55164216A true JPS55164216A (en) | 1980-12-20 |
JPS6320249B2 JPS6320249B2 (en) | 1988-04-27 |
Family
ID=13465061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7159179A Granted JPS55164216A (en) | 1979-06-07 | 1979-06-07 | Preparation of impact energy-absorbing urethane foam |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55164216A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02274391A (en) * | 1989-04-15 | 1990-11-08 | Shibuya Kogyo Co Ltd | Workpiece conveyor for laser beam machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5328699A (en) * | 1976-08-31 | 1978-03-17 | Mitsui Toatsu Chem Inc | Manufacture of highly elastic urethane foams |
-
1979
- 1979-06-07 JP JP7159179A patent/JPS55164216A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5328699A (en) * | 1976-08-31 | 1978-03-17 | Mitsui Toatsu Chem Inc | Manufacture of highly elastic urethane foams |
Also Published As
Publication number | Publication date |
---|---|
JPS6320249B2 (en) | 1988-04-27 |
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