JPS5573732A - Preparation of synthetic resin spacer - Google Patents
Preparation of synthetic resin spacerInfo
- Publication number
- JPS5573732A JPS5573732A JP14606078A JP14606078A JPS5573732A JP S5573732 A JPS5573732 A JP S5573732A JP 14606078 A JP14606078 A JP 14606078A JP 14606078 A JP14606078 A JP 14606078A JP S5573732 A JPS5573732 A JP S5573732A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- spacer
- preparation
- raw material
- resin spacer
- 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
- 229920003002 synthetic resin Polymers 0.000 title abstract 4
- 239000000057 synthetic resin Substances 0.000 title abstract 4
- 125000006850 spacer group Chemical group 0.000 title abstract 3
- 239000004604 Blowing Agent Substances 0.000 abstract 2
- 229940057995 liquid paraffin Drugs 0.000 abstract 2
- -1 polyethylene Polymers 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- 239000004156 Azodicarbonamide Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene 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
- 230000000694 effects Effects 0.000 abstract 1
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To obtain a light-weight synthetic resin spacer, having improved heat resistance, capable of absorbing the thermal expansion, by irradiating a molded synthetic resin raw material comprising a blowing agent and liquid paraffin.
CONSTITUTION: (A) A synthetic resin raw material, e.g. polyethylene or polypropylene, is kneaded with (B) a blowing agent, e.g. azodicarbonamide, and (C) liquid paraffin and molded. The resulting article is then irradiated with electron or gamma rays. Preferably, the weight ratio of (A):(B):(C) is 1000:10:1, and the voids of the spacer are about 40%.
EFFECT: Intersection of reinforcing rods embedded in concrete.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14606078A JPS5949976B2 (en) | 1978-11-28 | 1978-11-28 | Manufacturing method of synthetic resin spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14606078A JPS5949976B2 (en) | 1978-11-28 | 1978-11-28 | Manufacturing method of synthetic resin spacer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5573732A true JPS5573732A (en) | 1980-06-03 |
| JPS5949976B2 JPS5949976B2 (en) | 1984-12-05 |
Family
ID=15399166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14606078A Expired JPS5949976B2 (en) | 1978-11-28 | 1978-11-28 | Manufacturing method of synthetic resin spacer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949976B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006348732A (en) * | 2005-05-17 | 2006-12-28 | Fukuoka Prefecture | Spacer for concrete construction |
-
1978
- 1978-11-28 JP JP14606078A patent/JPS5949976B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006348732A (en) * | 2005-05-17 | 2006-12-28 | Fukuoka Prefecture | Spacer for concrete construction |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5949976B2 (en) | 1984-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE7707549L (en) | PROCEDURE FOR THE PREPARATION OF A FOREMAL OF A WATER CURABLE MASS AND A REINFORCEMENT MATERIAL | |
| JPS57147529A (en) | Foaming method of foamable resin | |
| GB1479080A (en) | High spacer chairs for use in the manufacture of reinforced concrete structures | |
| JPS5591639A (en) | Manufacture of foamed plastic product | |
| JPS5774432A (en) | Construction method for sheathing structure | |
| JPS56131718A (en) | Manhole cover | |
| JPS5731539A (en) | Manufacture of vinyl chloride resin foamed molding | |
| JPS64132A (en) | Chlorinated vinyl chloride resin composition pellet, pre-expanded particle and production thereof | |
| JPS5423699A (en) | Preparation of polyurethane foam molded articles reinforced with fibers | |
| JPS5573733A (en) | Manufacturing of spacer made of synthetic resin | |
| JPS5392884A (en) | Electro-conductive reinforced plastic pipe and its preparation | |
| JPS5528510A (en) | Tone arm for record reproduction | |
| JPS5328833A (en) | Structure decomposing heater for concrete or the like | |
| JPS5319365A (en) | Preparation of inorganic compoudn filled polyolefine composition molding articles | |
| JPS5453169A (en) | Production of modified polyolefin foam | |
| ES470822A1 (en) | Process for preparing modified plastic materials | |
| JPS6458760A (en) | Forming expansion joint material | |
| JPS5396084A (en) | Adhesion of reinforcing material to rubber through curing process | |
| JPS51122144A (en) | Preparation of molding materials | |
| JPS557872A (en) | Vinyl chloride polymer foam and its production | |
| JPS5682828A (en) | Preparation of polyethylene resin foamed article | |
| JPS53119967A (en) | Manufacture of synthetic plate materials | |
| SE8207488L (en) | SET TO MAKE A MIXTURE CONTAINING THE PROPYL | |
| JPS52109651A (en) | Lagging material | |
| JPS5369257A (en) | Molding composition |