JPS5478797A - Decomposition of polyurethane resin - Google Patents

Decomposition of polyurethane resin

Info

Publication number
JPS5478797A
JPS5478797A JP14596577A JP14596577A JPS5478797A JP S5478797 A JPS5478797 A JP S5478797A JP 14596577 A JP14596577 A JP 14596577A JP 14596577 A JP14596577 A JP 14596577A JP S5478797 A JPS5478797 A JP S5478797A
Authority
JP
Japan
Prior art keywords
polyurethane resin
alkylene oxide
reused
raw material
decomposition
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
JP14596577A
Other languages
Japanese (ja)
Other versions
JPS5952652B2 (en
Inventor
Tsutomu Hyodo
Yoshitsugu Ishizuka
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.)
Adeka Corp
Original Assignee
Asahi Denka 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 Asahi Denka Kogyo KK filed Critical Asahi Denka Kogyo KK
Priority to JP52145965A priority Critical patent/JPS5952652B2/en
Publication of JPS5478797A publication Critical patent/JPS5478797A/en
Publication of JPS5952652B2 publication Critical patent/JPS5952652B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To obtain the homogeneous liquid decomposition product of a polyether- type polyurethane resin, which can be reused as a raw material, by heating the resin in a urea-alkylene oxide adduct at a low temperature.
CONSTITUTION: A polyurethane resin prepared from a polyether polyol and a polyisocyanate is crushed into blocks, granules, etc.; added to an adduct prepared by reacting urea with ≥ 1 mole of an alkylene oxide, e.g. ethylene oxide, etc., preferably at 130W150°C; and thereafter thermally decomposed at 130W180°C.
EFFECT: The decomposition product or its addition reaction product with an alkylene oxide can be reused as a raw material of the polyurethane resin.
COPYRIGHT: (C)1979,JPO&Japio
JP52145965A 1977-12-05 1977-12-05 How to decompose polyurethane resin Expired JPS5952652B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52145965A JPS5952652B2 (en) 1977-12-05 1977-12-05 How to decompose polyurethane resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52145965A JPS5952652B2 (en) 1977-12-05 1977-12-05 How to decompose polyurethane resin

Publications (2)

Publication Number Publication Date
JPS5478797A true JPS5478797A (en) 1979-06-23
JPS5952652B2 JPS5952652B2 (en) 1984-12-20

Family

ID=15397095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52145965A Expired JPS5952652B2 (en) 1977-12-05 1977-12-05 How to decompose polyurethane resin

Country Status (1)

Country Link
JP (1) JPS5952652B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1229071A4 (en) * 1999-09-16 2004-05-26 Mitsui Takeda Chemicals Inc PROCESS FOR TREATING POLYOL RECOVERED BY DECOMPOSITION AND POLYOL THUS RECOVERED

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1229071A4 (en) * 1999-09-16 2004-05-26 Mitsui Takeda Chemicals Inc PROCESS FOR TREATING POLYOL RECOVERED BY DECOMPOSITION AND POLYOL THUS RECOVERED

Also Published As

Publication number Publication date
JPS5952652B2 (en) 1984-12-20

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