GB1542671A - Method for making polypropylene film with a roughened surface - Google Patents

Method for making polypropylene film with a roughened surface

Info

Publication number
GB1542671A
GB1542671A GB762950A GB295076A GB1542671A GB 1542671 A GB1542671 A GB 1542671A GB 762950 A GB762950 A GB 762950A GB 295076 A GB295076 A GB 295076A GB 1542671 A GB1542671 A GB 1542671A
Authority
GB
United Kingdom
Prior art keywords
polypropylene film
roughened surface
making polypropylene
making
roughened
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
GB762950A
Other languages
English (en)
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1542671A publication Critical patent/GB1542671A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H01G4/06—Solid dielectrics
    • H01G4/14—Organic dielectrics
    • H01G4/18—Organic dielectrics of synthetic material, e.g. derivatives of cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Organic Insulating Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB762950A 1975-02-28 1976-01-26 Method for making polypropylene film with a roughened surface Expired GB1542671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55407075A 1975-02-28 1975-02-28

Publications (1)

Publication Number Publication Date
GB1542671A true GB1542671A (en) 1979-03-21

Family

ID=24211948

Family Applications (2)

Application Number Title Priority Date Filing Date
GB762950A Expired GB1542671A (en) 1975-02-28 1976-01-26 Method for making polypropylene film with a roughened surface
GB76@@3680478A Expired GB1542672A (en) 1975-02-28 1976-01-26 Electrical capacitor

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB76@@3680478A Expired GB1542672A (en) 1975-02-28 1976-01-26 Electrical capacitor

Country Status (7)

Country Link
JP (2) JPS6012217B2 (US20110009641A1-20110113-C00256.png)
CA (1) CA1053339A (US20110009641A1-20110113-C00256.png)
DE (2) DE2601810A1 (US20110009641A1-20110113-C00256.png)
FI (1) FI64534C (US20110009641A1-20110113-C00256.png)
FR (1) FR2408449A1 (US20110009641A1-20110113-C00256.png)
GB (2) GB1542671A (US20110009641A1-20110113-C00256.png)
IT (1) IT1055895B (US20110009641A1-20110113-C00256.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG89427A1 (en) * 2000-11-13 2002-06-18 Sumitomo Chemical Co Blown films and a method for producing the same

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185148A (en) * 1976-05-17 1980-01-22 Mitsubishi Rayon Company Limited Process for producing the polypropylene film for electrical appliances
JPS5337774A (en) * 1976-09-20 1978-04-07 Toray Industries Method of producing roughened polypropylene film
DE2851557C2 (de) * 1978-11-29 1982-04-01 Hoechst Ag, 6000 Frankfurt Biaxial gestreckte Polypropylenverbundfolie zur Verwendung als Elektroisolierfolie
DE2942298C2 (de) * 1979-10-19 1985-06-13 Hoechst Ag, 6230 Frankfurt Verfahren zur Herstellung einer rauhen Polypropylen-Elektroisolierfolie
JPS56131921A (en) * 1980-03-19 1981-10-15 Sumitomo Chemical Co Oil-immersed electric device
EP0036457B1 (en) * 1980-03-20 1985-02-20 Mitsubishi Rayon Co., Ltd. A method of producing a polypropylene film for electrical appliances
JPS5750418A (en) * 1980-09-10 1982-03-24 Sumitomo Chemical Co Oil-immersed electric device
JPS59211908A (ja) * 1983-05-17 1984-11-30 株式会社東芝 油入フイルムコンデンサ
JPS63146937U (US20110009641A1-20110113-C00256.png) * 1987-03-18 1988-09-28

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235632A (en) * 1962-04-18 1966-02-15 Dow Chemical Co Process for producing biaxially oriented thermoplastic tubular film
FR1479973A (fr) * 1966-05-16 1967-05-05 Conditionnement Et Ind Sa Procédé notamment pour l'extrusion d'une gaine de matière plastique anti-dérapante, ainsi que les articles obtenus à partir de ladite gaine ou gaine similaire
DE1704796B1 (de) * 1967-05-10 1971-10-28 Lentia Gmbh Verfahren zur herstellung von schlauchfolien aus polyaethylen
US3430116A (en) * 1967-12-06 1969-02-25 Hercules Inc Electrical capacitors
US3822333A (en) * 1969-04-02 1974-07-02 Chisso Corp Process for producing shaped articles of crystalline polyolefins having a roughened surface
DE2027992A1 (en) * 1970-06-06 1971-12-16 Schlayer Polydress Gmbh Plastic tubular film - with roughened inner surfaces - preventing the sack sides from sticking together
JPS4855253A (US20110009641A1-20110113-C00256.png) * 1971-11-12 1973-08-03
JPS494773A (US20110009641A1-20110113-C00256.png) * 1972-04-26 1974-01-16
JPS51636B2 (US20110009641A1-20110113-C00256.png) * 1972-05-01 1976-01-09
IT1009956B (it) * 1973-06-12 1976-12-20 Gen Electric Liquido impregnante costituito da estere stabilizzato

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG89427A1 (en) * 2000-11-13 2002-06-18 Sumitomo Chemical Co Blown films and a method for producing the same
US6696134B2 (en) 2000-11-13 2004-02-24 Sumitomo Chemical Company, Limited Blown films and a method for producing the same

Also Published As

Publication number Publication date
FI760442A (US20110009641A1-20110113-C00256.png) 1976-08-29
JPS626977B2 (US20110009641A1-20110113-C00256.png) 1987-02-14
CA1053339A (en) 1979-04-24
DE2660907C2 (US20110009641A1-20110113-C00256.png) 1989-09-07
JPS51109982A (US20110009641A1-20110113-C00256.png) 1976-09-29
JPS5772819A (en) 1982-05-07
FI64534C (fi) 1983-12-12
DE2601810A1 (de) 1976-09-09
FR2408449B1 (US20110009641A1-20110113-C00256.png) 1980-05-30
DE2601810C2 (US20110009641A1-20110113-C00256.png) 1988-08-11
FR2408449A1 (fr) 1979-06-08
IT1055895B (it) 1982-01-11
JPS6012217B2 (ja) 1985-03-30
GB1542672A (en) 1979-03-21
FI64534B (fi) 1983-08-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19960125