JPS55150331A - Manufacturing of structual member such as rolling stock and the like - Google Patents

Manufacturing of structual member such as rolling stock and the like

Info

Publication number
JPS55150331A
JPS55150331A JP5780079A JP5780079A JPS55150331A JP S55150331 A JPS55150331 A JP S55150331A JP 5780079 A JP5780079 A JP 5780079A JP 5780079 A JP5780079 A JP 5780079A JP S55150331 A JPS55150331 A JP S55150331A
Authority
JP
Japan
Prior art keywords
mold
foaming
isocianate
core material
yellowing
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
Application number
JP5780079A
Other languages
Japanese (ja)
Other versions
JPS6334806B2 (en
Inventor
Sadao Kumasaka
Satomi Tada
Koretoshi Katsuki
Hirokazu Wakabayashi
Shigeo Kuga
Masao Idei
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.)
Toyo Quality One Corp
Original Assignee
Toyo Rubber Chemical Industrial Co Ltd
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 Toyo Rubber Chemical Industrial Co Ltd filed Critical Toyo Rubber Chemical Industrial Co Ltd
Priority to JP5780079A priority Critical patent/JPS55150331A/en
Publication of JPS55150331A publication Critical patent/JPS55150331A/en
Publication of JPS6334806B2 publication Critical patent/JPS6334806B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a structural member excellent in weather resistance, shock resistance and shock absorptive property by forming a non-foaming urethane film layer using non-yellowing organic isocianate on the inner surface of a mold and then a stock solution of foaming plastics to foam unitarily a core material. CONSTITUTION:A urethane prepolymer obtained by mixing non-yellowing isocianate with polyol for urethane for general use is poured beforehand in the inner part of the mold and thereafter by rotating non-foaming urethane film layer of a thickness of 1-3mm. on the inner surface of the mold. Then, a semi-hard or hard foaming plastic stock solution is injected in the mold through an inlet. The solution is left standing for a predetermined period at ordinary temperature, and is foamed to obtain a core material. Since non-yellowing organic isocianate is used as mentioned above, no discoloration in appearance occures even when the thus obtained core material is exposed outdoor for a long period of time as a structual material for rolling stock or the like.
JP5780079A 1979-05-11 1979-05-11 Manufacturing of structual member such as rolling stock and the like Granted JPS55150331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5780079A JPS55150331A (en) 1979-05-11 1979-05-11 Manufacturing of structual member such as rolling stock and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5780079A JPS55150331A (en) 1979-05-11 1979-05-11 Manufacturing of structual member such as rolling stock and the like

Publications (2)

Publication Number Publication Date
JPS55150331A true JPS55150331A (en) 1980-11-22
JPS6334806B2 JPS6334806B2 (en) 1988-07-12

Family

ID=13065974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5780079A Granted JPS55150331A (en) 1979-05-11 1979-05-11 Manufacturing of structual member such as rolling stock and the like

Country Status (1)

Country Link
JP (1) JPS55150331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0327914A (en) * 1989-03-03 1991-02-06 Recticel Production of article having elastomer shell and synthetic foam core
US5223193A (en) * 1990-09-07 1993-06-29 Ecp Enichem Polimeri S.R.L. Process for preparing shaped bodies with integrated polyurethane skin, and shaped bodies obtained by such process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0398239U (en) * 1989-05-12 1991-10-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0327914A (en) * 1989-03-03 1991-02-06 Recticel Production of article having elastomer shell and synthetic foam core
US5223193A (en) * 1990-09-07 1993-06-29 Ecp Enichem Polimeri S.R.L. Process for preparing shaped bodies with integrated polyurethane skin, and shaped bodies obtained by such process

Also Published As

Publication number Publication date
JPS6334806B2 (en) 1988-07-12

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