JPS57202328A - Preparation of polyolefin foam - Google Patents
Preparation of polyolefin foamInfo
- Publication number
- JPS57202328A JPS57202328A JP8783881A JP8783881A JPS57202328A JP S57202328 A JPS57202328 A JP S57202328A JP 8783881 A JP8783881 A JP 8783881A JP 8783881 A JP8783881 A JP 8783881A JP S57202328 A JPS57202328 A JP S57202328A
- Authority
- JP
- Japan
- Prior art keywords
- polyolefin
- blowing agent
- temperature
- crosslinked
- crosslinked polyolefin
- 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
- 229920000098 polyolefin Polymers 0.000 title abstract 8
- 239000006260 foam Substances 0.000 title abstract 2
- 239000004604 Blowing Agent Substances 0.000 abstract 4
- 238000004132 cross linking Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000004156 Azodicarbonamide Substances 0.000 abstract 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 abstract 1
- 235000019399 azodicarbonamide Nutrition 0.000 abstract 1
- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Abstract
PURPOSE: To carry out uniform and fine expansion not requiring strict temperature control necessary during heating, without producing the nonuniform crosslinking of thick foam caused by irradiation crosslinking, by blending polyolefin with crosslinked polyolefin and a blowing agent, using the blend.
CONSTITUTION: 95W65wt% uncrosslinked polyolefin is blended with 5W35wt% crosslinked polyolefin having a gel fraction of ≥60% and a blowing agent to be decomposed at a temperature ≥ the melt temperature of the polyolefin at a temperature ≥ the decomposition temperature of the blowing agent, and expanded under heating. Azodicarbonamide, p,p'-oxybis(benzene sulfonyl hydrazide)2, etc. is used as the blowing agent, and used scrape polyolefin can be used as the crosslinked polyolefin.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8783881A JPS57202328A (en) | 1981-06-08 | 1981-06-08 | Preparation of polyolefin foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8783881A JPS57202328A (en) | 1981-06-08 | 1981-06-08 | Preparation of polyolefin foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57202328A true JPS57202328A (en) | 1982-12-11 |
Family
ID=13926053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8783881A Pending JPS57202328A (en) | 1981-06-08 | 1981-06-08 | Preparation of polyolefin foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57202328A (en) |
-
1981
- 1981-06-08 JP JP8783881A patent/JPS57202328A/en active Pending
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