JPS5573733A - Manufacturing of spacer made of synthetic resin - Google Patents

Manufacturing of spacer made of synthetic resin

Info

Publication number
JPS5573733A
JPS5573733A JP14606178A JP14606178A JPS5573733A JP S5573733 A JPS5573733 A JP S5573733A JP 14606178 A JP14606178 A JP 14606178A JP 14606178 A JP14606178 A JP 14606178A JP S5573733 A JPS5573733 A JP S5573733A
Authority
JP
Japan
Prior art keywords
synthetic resin
spacer
manufacturing
mixture
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.)
Pending
Application number
JP14606178A
Other languages
Japanese (ja)
Inventor
Genjiro Nishibori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fukoku Sekiyu Kk
Original Assignee
Fukoku Sekiyu Kk
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fukoku Sekiyu Kk filed Critical Fukoku Sekiyu Kk
Priority to JP14606178A priority Critical patent/JPS5573733A/en
Publication of JPS5573733A publication Critical patent/JPS5573733A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reinforcement Elements For Buildings (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To manufacture a light-weight synthetic resin spacer useful for the binding of iron reinforcing rods to be embedded in concrete, capable of compensating the thermal expansion of the spacer by the voids therein, by compounding a synthetic resin with a foaming agent and liquid paraffin, kneading the mixture, and forming to the desired shape.
CONSTITUTION: A mixture of (A) a synthetic resin such as polypropylene and polyethylene, (B) a foaming agent such as azocarbonamide, and (C) liquid paraffin, is kneaded, and formed to a spacer. The preferable weight ratios of A/B/C are 1000/10/1. The void volume of the spacer molded from the above composition is about 40%.
COPYRIGHT: (C)1980,JPO&Japio
JP14606178A 1978-11-28 1978-11-28 Manufacturing of spacer made of synthetic resin Pending JPS5573733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14606178A JPS5573733A (en) 1978-11-28 1978-11-28 Manufacturing of spacer made of synthetic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14606178A JPS5573733A (en) 1978-11-28 1978-11-28 Manufacturing of spacer made of synthetic resin

Publications (1)

Publication Number Publication Date
JPS5573733A true JPS5573733A (en) 1980-06-03

Family

ID=15399188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14606178A Pending JPS5573733A (en) 1978-11-28 1978-11-28 Manufacturing of spacer made of synthetic resin

Country Status (1)

Country Link
JP (1) JPS5573733A (en)

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