CA1045805A - Closed-cell rigid foam plastic - Google Patents

Closed-cell rigid foam plastic

Info

Publication number
CA1045805A
CA1045805A CA175,938A CA175938A CA1045805A CA 1045805 A CA1045805 A CA 1045805A CA 175938 A CA175938 A CA 175938A CA 1045805 A CA1045805 A CA 1045805A
Authority
CA
Canada
Prior art keywords
closed
foaming agent
group
cells
electrical
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.)
Expired
Application number
CA175,938A
Other languages
English (en)
French (fr)
Other versions
CA175938S (en
Inventor
Edmund Friedrich
Rolf Schaumann
Manfred Vogelmann
Josef H. Mosele
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
Brown Boveri und Cie AG Switzerland
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 Brown Boveri und Cie AG Switzerland filed Critical Brown Boveri und Cie AG Switzerland
Application granted granted Critical
Publication of CA1045805A publication Critical patent/CA1045805A/en
Expired legal-status Critical Current

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)
CA175,938A 1972-07-20 1973-07-09 Closed-cell rigid foam plastic Expired CA1045805A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA1045805A true CA1045805A (en) 1979-01-09

Family

ID=4367334

Family Applications (1)

Application Number Title Priority Date Filing Date
CA175,938A Expired CA1045805A (en) 1972-07-20 1973-07-09 Closed-cell rigid foam plastic

Country Status (9)

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

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH579606A5 (sv) * 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 (sv) * 1977-11-25 1979-06-12
DE3824354A1 (de) * 1988-07-19 1990-01-25 Basf Ag, 67063 Ludwigshafen 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
AT322863B (de) 1975-06-10
DE2241036A1 (de) 1974-02-07
FR2194022B1 (sv) 1980-08-08
GB1442858A (en) 1976-07-14
IT998246B (it) 1976-01-20
JPS4945167A (sv) 1974-04-30
NL7309974A (sv) 1974-01-22
CH572269A5 (sv) 1976-01-30
FR2194022A1 (sv) 1974-02-22

Similar Documents

Publication Publication Date Title
CA1045805A (en) Closed-cell rigid foam plastic
US3853685A (en) Open-cell rigid foam plastic
EP2652751B1 (en) Dielectric insulation medium
KR101433436B1 (ko) 유전성 절연 매질
KR101996233B1 (ko) 유전성 절연 매질
CN103597565B (zh) 十氟‑2‑甲基丁‑3‑酮和载气的混合物作为中电压中的电绝缘和/或灭弧介质
JP4134403B2 (ja) 送配電機器
KR20140040086A (ko) 유전성 절연 매질
CA1051191A (en) Hard foam material as well as its use with electrical equipment and apparatus
EP3280700A1 (en) Compounds for dielectrically insulating electric active parts
CA1085603A (en) Insulating hard-foam for electrical devices, apparatus and machines which is mechanically supporting and usable to low temperatures
EP3384506B1 (en) Methods for dielectrically insulating electrical active parts
KR20230020537A (ko) 이산화탄소, 헵타플루오로이소부티로니트릴 및 고함량 산소를 포함하는 가스 절연 전기 장치
EP3384505B1 (en) Methods for dielectrically insulating electrical active parts
CN105743008A (zh) 一种环保型gis设备
EP3384508B1 (en) Methods for dielectrically insulating electrical active parts
CA2821218A1 (en) Dielectric insulation medium
Guillen et al. Lightning impulse withstand of a gas-insulated line filled with N/sub 2//SF/sub 6
WO2017093503A1 (en) Methods for dielectrically insulating electrical active parts
El-Zein et al. Modelling G3 gas as an alternative gas for SF6 using COMSOL multiphysics
EP3863136A1 (en) Sf6 free gas insulated switching device
Dakin et al. The Past Twenty‐Five Years of Electrical Insulation