JPS5791245A - Manufacture of shock absorbing material - Google Patents

Manufacture of shock absorbing material

Info

Publication number
JPS5791245A
JPS5791245A JP55168246A JP16824680A JPS5791245A JP S5791245 A JPS5791245 A JP S5791245A JP 55168246 A JP55168246 A JP 55168246A JP 16824680 A JP16824680 A JP 16824680A JP S5791245 A JPS5791245 A JP S5791245A
Authority
JP
Japan
Prior art keywords
expansion
opening part
resin solution
packaging body
unexpanded
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
JP55168246A
Other languages
Japanese (ja)
Inventor
Yuusuke Akama
Tomoyoshi Arai
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP55168246A priority Critical patent/JPS5791245A/en
Publication of JPS5791245A publication Critical patent/JPS5791245A/en
Pending legal-status Critical Current

Links

Landscapes

  • Buffer Packaging (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To obtain shock absorbing material possible to manufacture efficiently and pack easily by a method wherein unexpanded polyurethane resin solution is molded by expansion on a packaging body and fixed firmly to a packaging body by the use of adhesion appearing during expansion.
CONSTITUTION: Corrugated cardboard 1 is cut in the developing form of a packaging body and a plurality of forming dies 2 are arranged at desired positions on the corrugated cardboard 1. The forming die 2 has an opening part 2a through which unexpanded polyurethane is injected and an injecting pipe 3 is provided on the opening part 2a in order to inject unexpanded polyurethane resin solution. A desired quantity of double-liquid mixing unexpanded polyurethane resin solution is injected for expansion through the injecting pipe 3 provided on the opening part 2a of the forming die 2. After then, the forming die is separated from the cardboard 1. At this time the unexpanded polyurethane does not require vapor or the like as expanded polystyrene does. Accordingly, expansion may be conducted at the normal temperature and at the normal pressure.
COPYRIGHT: (C)1982,JPO&Japio
JP55168246A 1980-11-29 1980-11-29 Manufacture of shock absorbing material Pending JPS5791245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55168246A JPS5791245A (en) 1980-11-29 1980-11-29 Manufacture of shock absorbing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55168246A JPS5791245A (en) 1980-11-29 1980-11-29 Manufacture of shock absorbing material

Publications (1)

Publication Number Publication Date
JPS5791245A true JPS5791245A (en) 1982-06-07

Family

ID=15864462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55168246A Pending JPS5791245A (en) 1980-11-29 1980-11-29 Manufacture of shock absorbing material

Country Status (1)

Country Link
JP (1) JPS5791245A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60193871A (en) * 1984-03-09 1985-10-02 松下電器産業株式会社 Manufacture of packaging vessel with buffer body
JPS60193870A (en) * 1984-03-09 1985-10-02 松下電器産業株式会社 Manufacture of buffer packaging box
JPS6228357A (en) * 1985-07-23 1987-02-06 サンデン株式会社 Manufacture of packaging member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60193871A (en) * 1984-03-09 1985-10-02 松下電器産業株式会社 Manufacture of packaging vessel with buffer body
JPS60193870A (en) * 1984-03-09 1985-10-02 松下電器産業株式会社 Manufacture of buffer packaging box
JPS6228357A (en) * 1985-07-23 1987-02-06 サンデン株式会社 Manufacture of packaging member

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