JPS578126A - Manufacture of polyurethane foam chip material using polyurethane prepolymer single substance - Google Patents

Manufacture of polyurethane foam chip material using polyurethane prepolymer single substance

Info

Publication number
JPS578126A
JPS578126A JP8422080A JP8422080A JPS578126A JP S578126 A JPS578126 A JP S578126A JP 8422080 A JP8422080 A JP 8422080A JP 8422080 A JP8422080 A JP 8422080A JP S578126 A JPS578126 A JP S578126A
Authority
JP
Japan
Prior art keywords
prepolymer
injected
single substance
die
manufacture
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
JP8422080A
Other languages
Japanese (ja)
Other versions
JPS5954017B2 (en
Inventor
Masanobu Oota
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.)
OKAZAKI URETHANE KOGYO KK
Original Assignee
OKAZAKI URETHANE 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 OKAZAKI URETHANE KOGYO KK filed Critical OKAZAKI URETHANE KOGYO KK
Priority to JP55084220A priority Critical patent/JPS5954017B2/en
Publication of JPS578126A publication Critical patent/JPS578126A/en
Publication of JPS5954017B2 publication Critical patent/JPS5954017B2/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

  • Molding Of Porous Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

PURPOSE: To reduce the time needed for injection and mixing and for passing steam without using triol or the like and prevent an environmental pollution, by a method wherein prepolymer single substance is formed into a fine particle shape under high pressure by using a piston type pressurizing pump and injected to mix with urethane scrap.
CONSTITUTION: While being produced, prepolymer is prevented from contacting with air, and the reaction heat is utilized to heat and lag the prepolymer so that the viscosity thereof is lowered to a certain extent. This is injected from an airless gun which is flat and circular and has a nozzle diameter of 0.1W1.5mm by using a piston type pressurizing pump, and mixing is performed in 40W50sec. The urethane chip into which the prepolymer has been injected to mix therewith is injected into a block die or molding die, and steam having a pressure of 3W7kg/cm2 is applied thereto for 5W6sec to perform a molding reaction. Then, the molded object is removed from the die and dried.
COPYRIGHT: (C)1982,JPO&Japio
JP55084220A 1980-06-20 1980-06-20 Manufacturing method of polyurethane foam chip material using polyurethane prepolymer alone Expired JPS5954017B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55084220A JPS5954017B2 (en) 1980-06-20 1980-06-20 Manufacturing method of polyurethane foam chip material using polyurethane prepolymer alone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55084220A JPS5954017B2 (en) 1980-06-20 1980-06-20 Manufacturing method of polyurethane foam chip material using polyurethane prepolymer alone

Publications (2)

Publication Number Publication Date
JPS578126A true JPS578126A (en) 1982-01-16
JPS5954017B2 JPS5954017B2 (en) 1984-12-27

Family

ID=13824393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55084220A Expired JPS5954017B2 (en) 1980-06-20 1980-06-20 Manufacturing method of polyurethane foam chip material using polyurethane prepolymer alone

Country Status (1)

Country Link
JP (1) JPS5954017B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH024805A (en) * 1988-02-03 1990-01-09 Vickers Plc Improvement in radiation sensitive compound

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62202531U (en) * 1986-06-13 1987-12-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH024805A (en) * 1988-02-03 1990-01-09 Vickers Plc Improvement in radiation sensitive compound

Also Published As

Publication number Publication date
JPS5954017B2 (en) 1984-12-27

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