JPS555923A - Production of rigid urethane block utilizing the waste of rigid foamed urethane - Google Patents

Production of rigid urethane block utilizing the waste of rigid foamed urethane

Info

Publication number
JPS555923A
JPS555923A JP7762278A JP7762278A JPS555923A JP S555923 A JPS555923 A JP S555923A JP 7762278 A JP7762278 A JP 7762278A JP 7762278 A JP7762278 A JP 7762278A JP S555923 A JPS555923 A JP S555923A
Authority
JP
Japan
Prior art keywords
rigid
waste
urethane
foamed urethane
production
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
JP7762278A
Other languages
Japanese (ja)
Inventor
Yoshio Kawasaki
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.)
NIPPON YUUBOARD KOGYO KK
NIPPON YUUBOODO KOGYO KK
Original Assignee
NIPPON YUUBOARD KOGYO KK
NIPPON YUUBOODO KOGYO 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 NIPPON YUUBOARD KOGYO KK, NIPPON YUUBOODO KOGYO KK filed Critical NIPPON YUUBOARD KOGYO KK
Priority to JP7762278A priority Critical patent/JPS555923A/en
Publication of JPS555923A publication Critical patent/JPS555923A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: The waste of rigid foamed urethane crushed into ships of relatively small sizes is used as a filler to produce rigid urethane blocks, thus utilizing the waste of rigid foamed urethane substantially with no value.
CONSTITUTION: The waste of rigid foamed urethane crushed into chips in a prescribed amount is charged into a mold vessel and a polyol and isocyanate are also charged and made to react, thus forming a foamed urethane. At this time the waste polyurethane is decomposed chemically to form integrated rigid block.
COPYRIGHT: (C)1980,JPO&Japio
JP7762278A 1978-06-27 1978-06-27 Production of rigid urethane block utilizing the waste of rigid foamed urethane Pending JPS555923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7762278A JPS555923A (en) 1978-06-27 1978-06-27 Production of rigid urethane block utilizing the waste of rigid foamed urethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7762278A JPS555923A (en) 1978-06-27 1978-06-27 Production of rigid urethane block utilizing the waste of rigid foamed urethane

Publications (1)

Publication Number Publication Date
JPS555923A true JPS555923A (en) 1980-01-17

Family

ID=13638994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7762278A Pending JPS555923A (en) 1978-06-27 1978-06-27 Production of rigid urethane block utilizing the waste of rigid foamed urethane

Country Status (1)

Country Link
JP (1) JPS555923A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157226U (en) * 1983-04-07 1984-10-22 三洋電機株式会社 Recording beam limiting circuit
US4812726A (en) * 1986-01-16 1989-03-14 Mitsubishi Denki Kabushiki Kaisha Servo circuit positioning actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157226U (en) * 1983-04-07 1984-10-22 三洋電機株式会社 Recording beam limiting circuit
JPH0110752Y2 (en) * 1983-04-07 1989-03-28
US4812726A (en) * 1986-01-16 1989-03-14 Mitsubishi Denki Kabushiki Kaisha Servo circuit positioning actuator

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