ES344668A1 - Un procedimiento para preparar una pelicula permeable. - Google Patents

Un procedimiento para preparar una pelicula permeable.

Info

Publication number
ES344668A1
ES344668A1 ES344668A ES344668A ES344668A1 ES 344668 A1 ES344668 A1 ES 344668A1 ES 344668 A ES344668 A ES 344668A ES 344668 A ES344668 A ES 344668A ES 344668 A1 ES344668 A1 ES 344668A1
Authority
ES
Spain
Prior art keywords
pores
length
polypropylene film
polypropylene
films
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
ES344668A
Other languages
English (en)
Spanish (es)
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.)
Celanese Corp
Original Assignee
Celanese Corp
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 Celanese Corp filed Critical Celanese Corp
Publication of ES344668A1 publication Critical patent/ES344668A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
ES344668A 1966-09-06 1967-08-31 Un procedimiento para preparar una pelicula permeable. Expired ES344668A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57743966A 1966-09-06 1966-09-06

Publications (1)

Publication Number Publication Date
ES344668A1 true ES344668A1 (es) 1969-01-01

Family

ID=24308738

Family Applications (1)

Application Number Title Priority Date Filing Date
ES344668A Expired ES344668A1 (es) 1966-09-06 1967-08-31 Un procedimiento para preparar una pelicula permeable.

Country Status (13)

Country Link
AT (1) AT312911B (de)
BE (1) BE703379A (de)
CH (1) CH510704A (de)
DE (1) DE1704546B2 (de)
DK (1) DK123344B (de)
ES (1) ES344668A1 (de)
FI (1) FI50218C (de)
FR (1) FR1553757A (de)
GB (1) GB1180066A (de)
IL (1) IL28508A (de)
NL (1) NL6712145A (de)
NO (1) NO130787C (de)
SE (1) SE349255B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215627A (en) * 1975-07-09 1977-02-05 Mitsubishi Rayon Co Ltd Porous polypropylene hollow fibers and a process for manufacturing the m
JPS61146308A (ja) * 1984-12-21 1986-07-04 Ube Ind Ltd 多孔質ポリプロピレン中空糸又はフイルムの製造法

Also Published As

Publication number Publication date
FI50218B (de) 1975-09-30
CH510704A (fr) 1971-07-31
FI50218C (fi) 1976-01-12
DE1704546A1 (de) 1972-03-23
DK123344B (da) 1972-06-12
NL6712145A (de) 1968-03-07
AT312911B (de) 1974-01-25
IL28508A (en) 1971-10-20
DE1704546B2 (de) 1976-11-18
BE703379A (de) 1968-03-01
FR1553757A (de) 1969-01-17
NO130787C (de) 1975-02-12
SE349255B (de) 1972-09-25
NO130787B (de) 1974-11-04
GB1180066A (en) 1970-02-04

Similar Documents

Publication Publication Date Title
GB1287504A (en) Process for producing microporous films
GB1431120A (en) Process for producing non-foamable and foamable polyethylene resin particles
GB1051320A (en) Micro-porous polyethylene and a process for the manufacture thereof
GB1050197A (de)
JPS572343A (en) Foam of crosslinked vinyl chloride resin and its preparation
ES8101135A1 (es) Procedimiento para la fabricacion de una membrana en forma de una lamina plana, lamina de manguera o de un hilo hueco
ES344668A1 (es) Un procedimiento para preparar una pelicula permeable.
ES465053A1 (es) Perfeccionamientos introducidos en un procedimiento para preparar una pelicula orientada biaxialmente
GB999548A (en) Process and apparatus in the form of a flat sheeting die for the manufacture of foils with beaded edges from thermoplastic material
GB836080A (en) Textured plastic materials
FR2282988A1 (fr) Procede de preparation de pieces expansees en polychlorure de vinyle
GB1031132A (en) Polyolefin compositions
GB1272129A (en) Press-moulded cross-linked polymeric foams and a process for producing the same
GB1287505A (en) Microporous films and their production
ES294846A1 (es) Mejoras introducidas en la fabricación de películas compuestas
IL30273A0 (en) Process for the production of microporous films,membranes of similar sheets of high polymers and products obtained thereby
FR2047225A5 (en) Fibrillated polymer product by leading - one component
FR2047115A5 (en) Small effluent filtering plant with plastics or glass - fibre filter
GB1336869A (en) Cross-linked polymer articles
JPS57137117A (en) Stretched film for package
FR2112016A1 (en) Porous foils or sheets used in synthetic paper or leather prodn
AT301170B (de) Prozeßregelung bei der Herstellung eines Polymeren
ES340862A1 (es) Procedimiento para obtener emulsiones acuosas de politetra-fluoetileno.
KR790000377B1 (en) Process for preparing filled biaxially oriented polymeric film
NL7200398A (en) Thermoplastic moulding material