JPS578125A - Manufacture of crosslinked foamed body having coarse cell diameter - Google Patents
Manufacture of crosslinked foamed body having coarse cell diameterInfo
- Publication number
- JPS578125A JPS578125A JP8331680A JP8331680A JPS578125A JP S578125 A JPS578125 A JP S578125A JP 8331680 A JP8331680 A JP 8331680A JP 8331680 A JP8331680 A JP 8331680A JP S578125 A JPS578125 A JP S578125A
- Authority
- JP
- Japan
- Prior art keywords
- cell diameter
- foaming agent
- foamed body
- intermediate product
- mold
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000004088 foaming agent Substances 0.000 abstract 4
- 239000013067 intermediate product Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- 239000003431 cross linking reagent Substances 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 229920001038 ethylene copolymer Polymers 0.000 abstract 1
Abstract
PURPOSE: To enable the cell diameter to be largely changed and obtain a continuous foamed body having a coarse cell diameter, by a method wherein the first intermediate product obtained by temporarily lowering the pressure in a mold while the decomposing rate of a foaming agent is within a specified range is made to decompose the rest in the second process.
CONSTITUTION: The compound obtained by compounding ethylene (co)polymer with both a foaming agent and a crosslinking agent is placed in a mold capable of being closed up, and pressurized and heated for a given period of time. After a given period of time has passed, it is removed or the pressure is reduced to regulate the cell diameter. To change the cell diameter largely, the decomposing rate of the foaming agent is to be 5W80%. Said first intermediate product is heated in a mold which is not airtight in order to decompose the residual foaming agent and crosslinking agent, thereby the second intermediate product having a coaraw cell diameter is obtained. Destroying independent cells by means of compression in the third process permits a continuous foamed body to be obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8331680A JPS578125A (en) | 1980-06-18 | 1980-06-18 | Manufacture of crosslinked foamed body having coarse cell diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8331680A JPS578125A (en) | 1980-06-18 | 1980-06-18 | Manufacture of crosslinked foamed body having coarse cell diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS578125A true JPS578125A (en) | 1982-01-16 |
Family
ID=13799012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8331680A Pending JPS578125A (en) | 1980-06-18 | 1980-06-18 | Manufacture of crosslinked foamed body having coarse cell diameter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS578125A (en) |
-
1980
- 1980-06-18 JP JP8331680A patent/JPS578125A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE185733T1 (en) | MOLDED PART MADE OF PLASTIC FOAM AND METHOD AND DEVICE FOR THE PRODUCTION THEREOF | |
| JPS5790027A (en) | Prefoamed polypropylene resin particle and its production | |
| JPS5214689A (en) | Process for preparing a macromolecular material excellent in water abs orption properties | |
| JPS572343A (en) | Foam of crosslinked vinyl chloride resin and its preparation | |
| ES8302746A1 (en) | Method of producing phenolic foam using pressure and foam produced by the method | |
| RU96107257A (en) | METHOD OF MANUFACTURE OF PRODUCTS FROM EASY PUROPLAST WITH CLOSED PORES | |
| DE3570086D1 (en) | Process for preparing cross-linked polyolefin foamed articles with closed cells | |
| DE3070380D1 (en) | Rigid, non-cellular urethane polymer composition modified with reaction product of an isocyanate and an alcohol and a process for producing it | |
| JPS57191027A (en) | Manufacture of bridged polyolefin continuous foamed material | |
| JPS578125A (en) | Manufacture of crosslinked foamed body having coarse cell diameter | |
| JPS57191029A (en) | Manufacture of bridged polyolefinic foamed material | |
| JPS56130A (en) | Preparation of continuous foam body of ethylene polymer or copolymer | |
| JPS5725925A (en) | Manufacture of low density synthetic resin foamed body | |
| DE3377499D1 (en) | Polymeric polyoxamate polymer/polyol dispersions, process for preparing them and their use in the production of polyurethane foams | |
| GB1009068A (en) | A method of producing mouldings from foamable synthetic plastics materials | |
| DE2967399D1 (en) | Process for the production of a linear polyphosphazene rubber latex and its use in the production of coatings, foams and films | |
| JPS54101899A (en) | Production of polyurethane | |
| JPS55101430A (en) | Special extrusion molding method for crystalline resin | |
| JPS572734A (en) | Manufacture of bubble body of ethylene polymer or copolymer | |
| ES267178U (en) | Mould for producing a plastics foam body | |
| JPS5686712A (en) | Mold for molding and preparation thereof | |
| JPS555923A (en) | Production of rigid urethane block utilizing the waste of rigid foamed urethane | |
| JPS6480272A (en) | Method for swelling tobacco raw material | |
| JPS5791245A (en) | Manufacture of shock absorbing material | |
| JPS55114427A (en) | Method and apparatus for producing of drawn molding with flange |