JPS5550035A - Manufacture of polyurethane foam - Google Patents

Manufacture of polyurethane foam

Info

Publication number
JPS5550035A
JPS5550035A JP12375078A JP12375078A JPS5550035A JP S5550035 A JPS5550035 A JP S5550035A JP 12375078 A JP12375078 A JP 12375078A JP 12375078 A JP12375078 A JP 12375078A JP S5550035 A JPS5550035 A JP S5550035A
Authority
JP
Japan
Prior art keywords
flame
retardant
polyurethane foam
reaction
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
JP12375078A
Other languages
Japanese (ja)
Other versions
JPS6129374B2 (en
Inventor
Tadao Matsuo
Katsuichi Yamamoto
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.)
Mitsuboshi Belting Ltd
Original Assignee
Mitsuboshi Belting 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 Mitsuboshi Belting Ltd filed Critical Mitsuboshi Belting Ltd
Priority to JP12375078A priority Critical patent/JPS5550035A/en
Publication of JPS5550035A publication Critical patent/JPS5550035A/en
Publication of JPS6129374B2 publication Critical patent/JPS6129374B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a polyurethane foam of low brittleness, with good flame-retardancy and heat resistance, by the reaction between a polyol and a polyfunctional isocyanate with incorporation of, as a flame-retardant, an expanded graphite, in the presence of a catalyst, blowing agent, etc.
CONSTITUTION: The objective polyurethane foam can be obtained by the reaction between a polyfunctional isocyanate and a polyol having at least two active hydrogen groups in one molecule, in the presence of a catalyst, a blowing agent, and a flame-retardant. Said flame-retardant is an expanded graphite with a bulk density ≥0.2g/cm3 and its amount to be incorporated in the reaction system being 5W25 (pref. 10W20)wt%. If the bulk density is less than 0.2g/cm3, the improvement of the foam brittleness may be insufficiently accomplished; whereas its upper limit is desired to be ca. 0.8 in view of uniformity of the dispersion of the graphite. The present invention is especially effective in the manufacture of rigid polyurethane foams.
COPYRIGHT: (C)1980,JPO&Japio
JP12375078A 1978-10-06 1978-10-06 Manufacture of polyurethane foam Granted JPS5550035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12375078A JPS5550035A (en) 1978-10-06 1978-10-06 Manufacture of polyurethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12375078A JPS5550035A (en) 1978-10-06 1978-10-06 Manufacture of polyurethane foam

Publications (2)

Publication Number Publication Date
JPS5550035A true JPS5550035A (en) 1980-04-11
JPS6129374B2 JPS6129374B2 (en) 1986-07-07

Family

ID=14868381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12375078A Granted JPS5550035A (en) 1978-10-06 1978-10-06 Manufacture of polyurethane foam

Country Status (1)

Country Link
JP (1) JPS5550035A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01311137A (en) * 1988-06-08 1989-12-15 Human Ind Corp Production of polyurethane foam
JPH03504738A (en) * 1989-03-18 1991-10-17 メツツエラー　シヤウム　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Method for manufacturing fire-resistant elastic polyurethane soft foam
US6765035B2 (en) 1999-10-07 2004-07-20 Huntsman International Llc Process for making rigid and flexible polyurethane foams containing a fire-retardant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01311137A (en) * 1988-06-08 1989-12-15 Human Ind Corp Production of polyurethane foam
JPH03504738A (en) * 1989-03-18 1991-10-17 メツツエラー　シヤウム　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Method for manufacturing fire-resistant elastic polyurethane soft foam
US6765035B2 (en) 1999-10-07 2004-07-20 Huntsman International Llc Process for making rigid and flexible polyurethane foams containing a fire-retardant

Also Published As

Publication number Publication date
JPS6129374B2 (en) 1986-07-07

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