JPS6424728A - Preparation of cross-linked polyolefin resin foam - Google Patents
Preparation of cross-linked polyolefin resin foamInfo
- Publication number
- JPS6424728A JPS6424728A JP62180611A JP18061187A JPS6424728A JP S6424728 A JPS6424728 A JP S6424728A JP 62180611 A JP62180611 A JP 62180611A JP 18061187 A JP18061187 A JP 18061187A JP S6424728 A JPS6424728 A JP S6424728A
- Authority
- JP
- Japan
- Prior art keywords
- cross
- foaming
- polyolefin resin
- sheet
- molded
- 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
- 229920005672 polyolefin resin Polymers 0.000 title abstract 4
- 239000006260 foam Substances 0.000 title abstract 3
- 238000001816 cooling Methods 0.000 abstract 3
- 239000003431 cross linking reagent Substances 0.000 abstract 3
- 238000005187 foaming Methods 0.000 abstract 3
- 239000004088 foaming agent Substances 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000000047 product Substances 0.000 abstract 3
- 230000001351 cycling effect Effects 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To make it possible to produce continuously a foam having air bubbles whose diameters are uniform and very fine and whose surface is plain and pretty, by moving continuously a polyolefin resin molded product containing a foaming agent and a cross-linking agent in a mold where a heating zone and a successive cooling zone are provided by means of upper and lower endless belts while the molded product is kept under a specific pressure. CONSTITUTION:A polyolefin resin mixed with a foaming agent and a cross-linking agent is extruded and molded into a sheet by means of an extruder 6 and the like where a T-die 7 is attached. The sheet 3 is continuously moved by means of upper and lower endless belts 2 and 2' in a mold 1 where just after a heating zone 4 with hot air, a water cooling zone 5 is provided while it is always kept under a pressed state of 11-50kg/cm<2>. In the heating zone 4, the cross-linking agent in the extrusion- molded polyolefin resin is decomposed to prepare a cross-linked product and at the same time, a part of the foaming agent is decomposed to make a state where foaming nuclei are prepared and it is immediately cooled in a cooling zone 5. The sheet is taken out at an ordinary pressure and is moved in a foaming oven such as hot air cycling type oven and the like while it is placed on a metal net belt 9 again to complete foaming and to obtain a final product, a foam in a continuous length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62180611A JPS6424728A (en) | 1987-07-20 | 1987-07-20 | Preparation of cross-linked polyolefin resin foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62180611A JPS6424728A (en) | 1987-07-20 | 1987-07-20 | Preparation of cross-linked polyolefin resin foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6424728A true JPS6424728A (en) | 1989-01-26 |
Family
ID=16086265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62180611A Pending JPS6424728A (en) | 1987-07-20 | 1987-07-20 | Preparation of cross-linked polyolefin resin foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6424728A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100536793B1 (en) * | 1996-12-24 | 2006-02-28 | 가부시키가이샤 제이에스피 | Method and apparatus for producing expansion-molded article |
| JP2015020309A (en) * | 2013-07-17 | 2015-02-02 | 積水化学工業株式会社 | Crosslinking machine, apparatus for producing thermoplastic resin foam, method for crosslinking thermoplastic resin, and method for producing thermoplastic resin foam |
| JP2017505243A (en) * | 2013-10-29 | 2017-02-16 | フィッツ ホールディング ベーフェー | Method and apparatus for making a sandwich structure with a thermoplastic foam layer |
-
1987
- 1987-07-20 JP JP62180611A patent/JPS6424728A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100536793B1 (en) * | 1996-12-24 | 2006-02-28 | 가부시키가이샤 제이에스피 | Method and apparatus for producing expansion-molded article |
| JP2015020309A (en) * | 2013-07-17 | 2015-02-02 | 積水化学工業株式会社 | Crosslinking machine, apparatus for producing thermoplastic resin foam, method for crosslinking thermoplastic resin, and method for producing thermoplastic resin foam |
| JP2017505243A (en) * | 2013-10-29 | 2017-02-16 | フィッツ ホールディング ベーフェー | Method and apparatus for making a sandwich structure with a thermoplastic foam layer |
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