JPS5470364A - Production of extruded polyester foam - Google Patents

Production of extruded polyester foam

Info

Publication number
JPS5470364A
JPS5470364A JP13656577A JP13656577A JPS5470364A JP S5470364 A JPS5470364 A JP S5470364A JP 13656577 A JP13656577 A JP 13656577A JP 13656577 A JP13656577 A JP 13656577A JP S5470364 A JPS5470364 A JP S5470364A
Authority
JP
Japan
Prior art keywords
blend
polyester
foaming
production
polyalkylene glycol
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
JP13656577A
Other languages
Japanese (ja)
Other versions
JPS5746458B2 (en
Inventor
Norio Iguchi
Yoshio Mori
Teruhisa Fukumoto
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 JP13656577A priority Critical patent/JPS5470364A/en
Publication of JPS5470364A publication Critical patent/JPS5470364A/en
Publication of JPS5746458B2 publication Critical patent/JPS5746458B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE: To obtain an extruded polyester foam of high ratio expansion which is foamed uniformly and finely, by injecting a low-boiling mateial into a blend of an aromatic polyester, a polyalkylene glycol diepoxide, and a metallic compound, followed by foaming the blend.
CONSTITUTION: (A) An aromatic polyester, e.g. polyethylene terephthalate, etc., having an intrinsic viscosity of 0.5W1.0 in 0-cholorophenol at 35°C is incorporated with (B) 0.005W5wt.%, preferably 0.1W4wt.%, based on the polyester of a polyalkylene glycol diepoxide, e.g. polypropylene glycol diglycidyl ether, etc., (C) 0.05W 3wt.%, preferably 0.1W2wt.% of a metal of groups IWIII A in the periodic table, e.g. Na, Ca, Al, etc., or its salt, e.g. sodium montanate, etc. 0.05W50wt.%, preferably 1W40wt.% of a blowing agent having a boiling point ≤ 200°C is injected into te blend thus formed in an extruder at 200W350°C, thus extruding and foaming the blend.
COPYRIGHT: (C)1979,JPO&Japio
JP13656577A 1977-11-16 1977-11-16 Production of extruded polyester foam Granted JPS5470364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13656577A JPS5470364A (en) 1977-11-16 1977-11-16 Production of extruded polyester foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13656577A JPS5470364A (en) 1977-11-16 1977-11-16 Production of extruded polyester foam

Publications (2)

Publication Number Publication Date
JPS5470364A true JPS5470364A (en) 1979-06-06
JPS5746458B2 JPS5746458B2 (en) 1982-10-04

Family

ID=15178209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13656577A Granted JPS5470364A (en) 1977-11-16 1977-11-16 Production of extruded polyester foam

Country Status (1)

Country Link
JP (1) JPS5470364A (en)

Also Published As

Publication number Publication date
JPS5746458B2 (en) 1982-10-04

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