IT998246B - Materiale espanso duro a celle chiuse e sua utilizzazione per dispositivi ed apparecchi elettrici - Google Patents

Materiale espanso duro a celle chiuse e sua utilizzazione per dispositivi ed apparecchi elettrici

Info

Publication number
IT998246B
IT998246B IT2665973A IT2665973A IT998246B IT 998246 B IT998246 B IT 998246B IT 2665973 A IT2665973 A IT 2665973A IT 2665973 A IT2665973 A IT 2665973A IT 998246 B IT998246 B IT 998246B
Authority
IT
Italy
Prior art keywords
appliances
electrical devices
closed cell
expanded material
cell expanded
Prior art date
Application number
IT2665973A
Other languages
English (en)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of IT998246B publication Critical patent/IT998246B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/302—Polyurethanes or polythiourethanes; Polyurea or polythiourea
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Insulating Materials (AREA)
IT2665973A 1972-07-20 1973-07-17 Materiale espanso duro a celle chiuse e sua utilizzazione per dispositivi ed apparecchi elettrici IT998246B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1083572A CH572269A5 (it) 1972-07-20 1972-07-20

Publications (1)

Publication Number Publication Date
IT998246B true IT998246B (it) 1976-01-20

Family

ID=4367334

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2665973A IT998246B (it) 1972-07-20 1973-07-17 Materiale espanso duro a celle chiuse e sua utilizzazione per dispositivi ed apparecchi elettrici

Country Status (9)

Country Link
JP (1) JPS4945167A (it)
AT (1) AT322863B (it)
CA (1) CA1045805A (it)
CH (1) CH572269A5 (it)
DE (1) DE2241036A1 (it)
FR (1) FR2194022B1 (it)
GB (1) GB1442858A (it)
IT (1) IT998246B (it)
NL (1) NL7309974A (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH579606A5 (it) * 1973-06-18 1976-09-15 Bbc Brown Boveri & Cie
CH618041A5 (en) * 1975-06-02 1980-06-30 Bbc Brown Boveri & Cie Mechanically load-bearing, low-temperature withstanding rigid-foam insulating parts of electrical equipment
JPS5232097A (en) * 1975-09-06 1977-03-10 Daikin Ind Ltd Process for preparing thermal insulating materials of polyurethane foa m for low-emperature uses
CA1086450A (en) 1976-02-03 1980-09-23 Kyung W. Suh Styrene polymer foam and preparation thereof
NO149664C (no) 1977-03-30 1984-05-30 Dow Chemical Co Alkenyl-aromatisk, termoplastisk polymer-skumlegeme for isolasjonsformaal, samt fremgangsmaate for fremstilling derav
JPS5482977U (it) * 1977-11-25 1979-06-12
DE3824354A1 (de) * 1988-07-19 1990-01-25 Basf Ag Verfahren zur herstellung von zellhaltigen kunststoffen nach dem polyisocyanat-polyadditionsverfahren mittels lagerstabiler, treibmittelhaltiger emulsionen und diese emulsionen
DE3903336A1 (de) * 1989-02-04 1990-08-09 Bayer Ag Verwendung von c(pfeil abwaerts)3(pfeil abwaerts)- bis c(pfeil abwaerts)5(pfeil abwaerts)-polyfluoralkanen als treibgase
GB9001368D0 (en) * 1990-01-20 1990-03-21 Bp Chem Int Ltd Blowing agents
US4997706A (en) * 1990-02-09 1991-03-05 The Dow Chemical Company Foaming system for closed-cell rigid polymer foam
AU7312491A (en) * 1990-03-23 1991-10-21 E.I. Du Pont De Nemours And Company Polymer foams containing blocking agents
US5489619A (en) * 1991-08-27 1996-02-06 Bp Chemicals Limited Process for producing improved phenolic foams from phenolic resole resins
DE19804914A1 (de) * 1998-02-07 1999-08-12 Basf Ag Verfahren zur Herstellung von PU-Hartschaumstoffen mit kleinen Zelldurchmessern und ihre Verwendung
DE102004008751B4 (de) * 2004-02-23 2008-04-24 Siemens Ag Mittel zur elektrischen Isolierung von Mittel- und Hochspannungskomponenten

Also Published As

Publication number Publication date
JPS4945167A (it) 1974-04-30
CA1045805A (en) 1979-01-09
DE2241036A1 (de) 1974-02-07
CH572269A5 (it) 1976-01-30
FR2194022A1 (it) 1974-02-22
AT322863B (de) 1975-06-10
FR2194022B1 (it) 1980-08-08
NL7309974A (it) 1974-01-22
GB1442858A (en) 1976-07-14

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