JPH0550971B2 - - Google Patents
Info
- Publication number
- JPH0550971B2 JPH0550971B2 JP62179988A JP17998887A JPH0550971B2 JP H0550971 B2 JPH0550971 B2 JP H0550971B2 JP 62179988 A JP62179988 A JP 62179988A JP 17998887 A JP17998887 A JP 17998887A JP H0550971 B2 JPH0550971 B2 JP H0550971B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- mold
- molten resin
- foaming
- foaming agent
- 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.)
- Expired - Lifetime
Links
- 239000011347 resin Substances 0.000 claims description 82
- 229920005989 resin Polymers 0.000 claims description 82
- 239000004088 foaming agent Substances 0.000 claims description 38
- 238000005187 foaming Methods 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 19
- 238000001746 injection moulding Methods 0.000 claims description 16
- 239000006260 foam Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 description 18
- 239000007924 injection Substances 0.000 description 18
- 239000004604 Blowing Agent Substances 0.000 description 15
- 238000000465 moulding Methods 0.000 description 15
- 238000002156 mixing Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- ULUZGMIUTMRARO-UHFFFAOYSA-N (carbamoylamino)urea Chemical compound NC(=O)NNC(N)=O ULUZGMIUTMRARO-UHFFFAOYSA-N 0.000 description 1
- USVVENVKYJZFMW-ONEGZZNKSA-N (e)-carboxyiminocarbamic acid Chemical compound OC(=O)\N=N\C(O)=O USVVENVKYJZFMW-ONEGZZNKSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179988A JPS6424715A (en) | 1987-07-21 | 1987-07-21 | Injection molding process |
| US07/360,933 US5049327A (en) | 1987-07-21 | 1988-07-20 | Injection molding method |
| EP19880906104 EP0341310A4 (en) | 1987-07-21 | 1988-07-20 | Injection molding method |
| PCT/JP1988/000719 WO1989000489A1 (en) | 1987-07-21 | 1988-07-20 | Injection molding method |
| KR1019890700487A KR950012850B1 (ko) | 1987-07-21 | 1988-07-20 | 사출성형법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179988A JPS6424715A (en) | 1987-07-21 | 1987-07-21 | Injection molding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6424715A JPS6424715A (en) | 1989-01-26 |
| JPH0550971B2 true JPH0550971B2 (ko) | 1993-07-30 |
Family
ID=16075495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62179988A Granted JPS6424715A (en) | 1987-07-21 | 1987-07-21 | Injection molding process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6424715A (ko) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3805215A1 (de) * | 1988-02-19 | 1989-08-31 | Triumph Adler Ag | Verfahren zur herstellung einer kunststoffschreibwalze fuer schreib- oder aehnliche bueromaschinen |
| US7182312B1 (en) * | 2005-10-26 | 2007-02-27 | Harsco Technologies Corporation | Replaceable outlet on a cylinder valve |
-
1987
- 1987-07-21 JP JP62179988A patent/JPS6424715A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6424715A (en) | 1989-01-26 |
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