JPS5554321A - Preparation of polyurethane elastomer - Google Patents

Preparation of polyurethane elastomer

Info

Publication number
JPS5554321A
JPS5554321A JP12685778A JP12685778A JPS5554321A JP S5554321 A JPS5554321 A JP S5554321A JP 12685778 A JP12685778 A JP 12685778A JP 12685778 A JP12685778 A JP 12685778A JP S5554321 A JPS5554321 A JP S5554321A
Authority
JP
Japan
Prior art keywords
polyurethane elastomer
reacted
molecular weight
chain extender
preparation
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
JP12685778A
Other languages
Japanese (ja)
Inventor
Akira Soga
Isamu 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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP12685778A priority Critical patent/JPS5554321A/en
Publication of JPS5554321A publication Critical patent/JPS5554321A/en
Pending legal-status Critical Current

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  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: To prepare a polyurethane elastomer having a high modulus, and improved elastic recovery, and stability to discoloration, particularly resistance to yellowing by heat and chlorine industrially advantageously, by using a specific chain extender.
CONSTITUTION: (A) A linear polymer, e.g. high-molecular weight diol, having terminal active hydrogens and a molecular weight ≥700 is reacted with (B) an organic diisocyanate in molar excess, e.g. diphenylmethane-4,4'-dissocyanate. The prepolymer thus obtained is then reacted with (C) p,p'-diaminodicyclohexylmethane of the formula and (D) another chain extender, e.g. 1,2-propylenediamine, at a molar ratio of (C) to (D) of 15:85W80:20.
COPYRIGHT: (C)1980,JPO&Japio
JP12685778A 1978-10-17 1978-10-17 Preparation of polyurethane elastomer Pending JPS5554321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12685778A JPS5554321A (en) 1978-10-17 1978-10-17 Preparation of polyurethane elastomer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12685778A JPS5554321A (en) 1978-10-17 1978-10-17 Preparation of polyurethane elastomer

Publications (1)

Publication Number Publication Date
JPS5554321A true JPS5554321A (en) 1980-04-21

Family

ID=14945556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12685778A Pending JPS5554321A (en) 1978-10-17 1978-10-17 Preparation of polyurethane elastomer

Country Status (1)

Country Link
JP (1) JPS5554321A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6036524A (en) * 1983-08-10 1985-02-25 Asahi Denka Kogyo Kk Urethane-urea composition
US4642616A (en) * 1985-02-14 1987-02-10 Prime Computer, Inc. Method and apparatus for detection of AC power failure conditions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6036524A (en) * 1983-08-10 1985-02-25 Asahi Denka Kogyo Kk Urethane-urea composition
JPH038373B2 (en) * 1983-08-10 1991-02-05 Asahi Denka Kogyo Kk
US4642616A (en) * 1985-02-14 1987-02-10 Prime Computer, Inc. Method and apparatus for detection of AC power failure conditions

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