JPS5688417A - Preparation of expandable resin - Google Patents

Preparation of expandable resin

Info

Publication number
JPS5688417A
JPS5688417A JP16619779A JP16619779A JPS5688417A JP S5688417 A JPS5688417 A JP S5688417A JP 16619779 A JP16619779 A JP 16619779A JP 16619779 A JP16619779 A JP 16619779A JP S5688417 A JPS5688417 A JP S5688417A
Authority
JP
Japan
Prior art keywords
organic isocyanate
polyol
prepolymer
addition
prepare
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
JP16619779A
Other languages
Japanese (ja)
Inventor
Masayuki Takahashi
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 JP16619779A priority Critical patent/JPS5688417A/en
Publication of JPS5688417A publication Critical patent/JPS5688417A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: To prepare a semihard foam with excellent elasticity, by forming a urethane prepolymer by the reaction of a specified polyol with an organic isocyanate, and reacting the prepolymer with addition of water and an organic isocyanate.
CONSTITUTION: A polyol of MW ≥about 5,000, containing 15W60% ethylene oxide, is prepared by the addition polymerization of an amine (e.g., triethanolamine) with an epoxy compound such as ethylene oxide, propylene oxide or styrene oxide, and then said polyol is reacted with addition of an organic isocyanate (e.g., tolylene diisocyanate) at about 80W90°C for about 2W6hr, to prepare a urethane prepolymer. A foam is obtained by mixing and reacting 100pts.wt. said prepolymer, at least 10pts.wt. water and 60pts.wt. or less organic isocyanate.
COPYRIGHT: (C)1981,JPO&Japio
JP16619779A 1979-12-20 1979-12-20 Preparation of expandable resin Pending JPS5688417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16619779A JPS5688417A (en) 1979-12-20 1979-12-20 Preparation of expandable resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16619779A JPS5688417A (en) 1979-12-20 1979-12-20 Preparation of expandable resin

Publications (1)

Publication Number Publication Date
JPS5688417A true JPS5688417A (en) 1981-07-17

Family

ID=15826882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16619779A Pending JPS5688417A (en) 1979-12-20 1979-12-20 Preparation of expandable resin

Country Status (1)

Country Link
JP (1) JPS5688417A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832597A (en) * 1971-08-31 1973-04-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832597A (en) * 1971-08-31 1973-04-28

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