JPS57195723A - Production of rigid polyurethane foam - Google Patents

Production of rigid polyurethane foam

Info

Publication number
JPS57195723A
JPS57195723A JP56081026A JP8102681A JPS57195723A JP S57195723 A JPS57195723 A JP S57195723A JP 56081026 A JP56081026 A JP 56081026A JP 8102681 A JP8102681 A JP 8102681A JP S57195723 A JPS57195723 A JP S57195723A
Authority
JP
Japan
Prior art keywords
polyether
rigid polyurethane
polyurethane foam
employing
higher functional
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
JP56081026A
Other languages
Japanese (ja)
Inventor
Satsuji Naka
Isao Kobayashi
Seiji Shimada
Kazuyoshi Kuroishi
Katsuo Shibata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56081026A priority Critical patent/JPS57195723A/en
Publication of JPS57195723A publication Critical patent/JPS57195723A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: To obtain a rigid polyurethane foam having an extremely low thermal conductivity, less friability and excellent low-temperature dimensional stability, by using a one-shot process comprising the use of a combination of a novel polyol component and a novel foam stabilizer.
CONSTITUTION: The titled substance is obtained by using, as a polyol component, a mixture comprising (A) 14W18wt% adipic acid-based polyester, 9W5wt% phthalic anhydride-based polyester, (B) 60W65wt% tetrafunctional or higher functional aromatic polyether (e.g., tolylenediamine-based polyether) and (C) 17W22wt% bifunctional or higher functional polyether having a viscosity lower than those of polyesters A and B, (e.g., pentaerythritol-based polyether), employing a compound represented by the formula, wherein n is 2W3, m/n is 5/1 and x/y is 3/1, as a foam stabilizer, and employing other components such as a catalyst, which are used conventionally. Here, the average OH value of the polyol mixture is preferred to be 400W500.
COPYRIGHT: (C)1982,JPO&Japio
JP56081026A 1981-05-29 1981-05-29 Production of rigid polyurethane foam Pending JPS57195723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56081026A JPS57195723A (en) 1981-05-29 1981-05-29 Production of rigid polyurethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56081026A JPS57195723A (en) 1981-05-29 1981-05-29 Production of rigid polyurethane foam

Publications (1)

Publication Number Publication Date
JPS57195723A true JPS57195723A (en) 1982-12-01

Family

ID=13734959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56081026A Pending JPS57195723A (en) 1981-05-29 1981-05-29 Production of rigid polyurethane foam

Country Status (1)

Country Link
JP (1) JPS57195723A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01121340A (en) * 1987-09-29 1989-05-15 Union Carbide Corp Polyether silicone copolymer having secondary or tertiary hydroxy terminal for stabilizing highly elastic urethane foam
CN102093527A (en) * 2010-12-30 2011-06-15 上海东大聚氨酯有限公司 Composite polyether, polyurethane rigid foam as well as raw material composition and usage thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01121340A (en) * 1987-09-29 1989-05-15 Union Carbide Corp Polyether silicone copolymer having secondary or tertiary hydroxy terminal for stabilizing highly elastic urethane foam
CN102093527A (en) * 2010-12-30 2011-06-15 上海东大聚氨酯有限公司 Composite polyether, polyurethane rigid foam as well as raw material composition and usage thereof

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