JPS57125225A - Production rigid urethane foam - Google Patents

Production rigid urethane foam

Info

Publication number
JPS57125225A
JPS57125225A JP56010736A JP1073681A JPS57125225A JP S57125225 A JPS57125225 A JP S57125225A JP 56010736 A JP56010736 A JP 56010736A JP 1073681 A JP1073681 A JP 1073681A JP S57125225 A JPS57125225 A JP S57125225A
Authority
JP
Japan
Prior art keywords
added
component solution
urethane foam
foaming
polyol
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
JP56010736A
Other languages
Japanese (ja)
Inventor
Seisaburo Shimizu
Shin Obara
Ushimatsu Moriyama
Jiro Kano
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56010736A priority Critical patent/JPS57125225A/en
Publication of JPS57125225A publication Critical patent/JPS57125225A/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: A foaming regulator is added to both the isocyanate component solution and the polyol component solution to effect foaming, thus producing rigid urethane foam of small bubble size on the average with high heat insulation performance.
CONSTITUTION: A foaming regulator such as a silicone compound having no hydroxyl, amino or other functional groups is added to the isocyanate component solution (containing usually 25W45wt% of isocyanate groups such as tolylene diisocyanate) by 0.5W5pts. In the meantime, a foaming regulator such as a silicone compound and a catalyst such as an amine are added to the polyol component solution mainly containing a polyol (usually of 300W700 hydroxyl value such as polyether polyol) by 0.5W5pts. and 0.2W3pts./100pts.wt. respectively, and further a foaming agent such as water is added. Then, they are mixed at a ratio of 1.10W0.75, preferably 0.95W0.85 NCO index to produce the objective urethane foam.
COPYRIGHT: (C)1982,JPO&Japio
JP56010736A 1981-01-29 1981-01-29 Production rigid urethane foam Pending JPS57125225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010736A JPS57125225A (en) 1981-01-29 1981-01-29 Production rigid urethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010736A JPS57125225A (en) 1981-01-29 1981-01-29 Production rigid urethane foam

Publications (1)

Publication Number Publication Date
JPS57125225A true JPS57125225A (en) 1982-08-04

Family

ID=11758571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010736A Pending JPS57125225A (en) 1981-01-29 1981-01-29 Production rigid urethane foam

Country Status (1)

Country Link
JP (1) JPS57125225A (en)

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