FI70432B - Foerfarande och anordning foer framstaellning av sammansatt natstruktur - Google Patents

Foerfarande och anordning foer framstaellning av sammansatt natstruktur Download PDF

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Publication number
FI70432B
FI70432B FI801538A FI801538A FI70432B FI 70432 B FI70432 B FI 70432B FI 801538 A FI801538 A FI 801538A FI 801538 A FI801538 A FI 801538A FI 70432 B FI70432 B FI 70432B
Authority
FI
Finland
Prior art keywords
film
fibrillated
films
membranes
fasteners
Prior art date
Application number
FI801538A
Other languages
English (en)
Finnish (fi)
Other versions
FI70432C (fi
FI801538A (fi
Inventor
Andrea Vittone
Edoardo Furia
Pierpaolo Camprincoli
Adriano Grondona
Original Assignee
Montedison Spa
Moplefan Spa
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
Priority claimed from IT22800/79A external-priority patent/IT1114242B/it
Priority claimed from IT22801/79A external-priority patent/IT1114281B/it
Application filed by Montedison Spa, Moplefan Spa filed Critical Montedison Spa
Publication of FI801538A publication Critical patent/FI801538A/fi
Publication of FI70432B publication Critical patent/FI70432B/fi
Application granted granted Critical
Publication of FI70432C publication Critical patent/FI70432C/fi

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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B29D28/00—Producing nets or the like, e.g. meshes, lattices
    • 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
    • B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Laminated Bodies (AREA)
  • Prostheses (AREA)

Claims (2)

1. Förfarande för kontinuerlig framställning av sammansatta nätformade strukturer bestäende av minst tvä pä varandra lagda fibrillerade filmer i vilket man: (1) framställer en film av minst en syntetisk polymer av en tjocklek mellan 35 och 1 200 ^um, (2) orienterar filmen för att bilda en orienterad film av en tjocklek mellan 15 och 200 ^um, (3) fibrillerar den orienterade filmen med att leda filmen över en yta som är försedd med nälar, bett eller motsvarande medel som lämpar sig för ästadkommandet av slitsar, sä att det bildas sneda, ofibrillerade band som bildar en vinkel /3 som är mellan 0,30° och 50° med filmslitsarnas riktning, (4) lägger ätminstone tvä sälunda fibrillerade filmer pä varandra , (5) töjer i tvärriktningen sammansättningen eller stapeln av pä varandra lagda filmer och (6) värmestabiliserar sammansättningen av de töjda och pä varandra lagda filmerna, kännetecknat därav, att ätminstone tvä filmer efter att ha blivit orienterade ilängdriktningen fibrilleras med en vinkel /3 mellan de sneda, ofibrillerade banden och slitsriktningen som är olika för varje film, sä att det dä filmerna läggs pä varandra med praktiskt taget sammanfallande matningsriktning varmed de ofibrille-rade bander i varje enskilt fall korsa de sneda banden i de övriga filmerna och dä töjningen av sammansättningen av de pä varandra lagda filmer sker intill de ofibrillerade banden bildas en ny vinkelft med den ursprungliga slitsriktningen som är mellan /3 och ± 80°.
2. Anordning för öppning eller töjning i tvärriktning av en sammansättning av minst tvä pä varandra lagda fibrillerade filmer som används vid förfarandet enligt patentkrav 1 och som omfattar: (A) ett matningssystem (1) för sammansättningen av de pä varandra lagda fibrillerade filmerna, (B) ett par divergerande styranordningar (2) som vardera bildar en sluten krets, vilka styranordningar närä matningssystemet (1) är pä ett avständ frän varandra som motsvarar filmens ursprungliga bredd Lq och därefter gradvis fjärmar sig frän varandra tili ett avständ som motsvarar den önskade bredden av den töjda sammansättningen av filmer, il
FI801538A 1979-05-18 1980-05-12 Foerfarande och anordning foer framstaellning av sammansatt natstruktur FI70432C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT2280179 1979-05-18
IT2280079 1979-05-18
IT22800/79A IT1114242B (it) 1979-05-18 1979-05-18 Procedimento e dispositivo per preparare strutture composite reticolari
IT22801/79A IT1114281B (it) 1979-05-18 1979-05-18 Strutture retiformi polimeriche dotate di elevata area superficiale come rinforzo nei leganti idraulici

Publications (3)

Publication Number Publication Date
FI801538A FI801538A (fi) 1980-11-19
FI70432B true FI70432B (fi) 1986-03-27
FI70432C FI70432C (fi) 1986-09-19

Family

ID=26328271

Family Applications (1)

Application Number Title Priority Date Filing Date
FI801538A FI70432C (fi) 1979-05-18 1980-05-12 Foerfarande och anordning foer framstaellning av sammansatt natstruktur

Country Status (11)

Country Link
EP (1) EP0021017B1 (sv)
AU (1) AU538194B2 (sv)
CA (1) CA1162372A (sv)
DE (1) DE3066250D1 (sv)
DK (1) DK206680A (sv)
ES (1) ES491593A0 (sv)
FI (1) FI70432C (sv)
NO (1) NO149476C (sv)
PT (1) PT71240B (sv)
SU (1) SU1075956A3 (sv)
YU (1) YU41714B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK8204161A (sv) * 1981-09-23 1983-06-06
JPH0143027Y2 (sv) * 1986-01-29 1989-12-14
SE8602334L (sv) * 1986-05-22 1987-11-23 Gram Hans Erik Med streckmaterial armerade skivor eller formprodukter
US5645933A (en) * 1994-04-22 1997-07-08 Nippon Petrochemicals Company, Limited Polypropylene monoaxially oriented material, woven or non-woven fabric, laminated product and preparation method
CN106463217B (zh) * 2014-04-14 2018-07-06 Abb瑞士股份有限公司 制造高电压构件的高电压绝缘间隔件的方法和包括根据该方法制造的间隔件的高电压构件

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962021C (de) * 1953-12-19 1957-04-18 Semtex Ltd Verfahren zum Herstellen marmorierter Bahnen
GB922131A (en) * 1959-04-11 1963-03-27 Hoechst Ag Process for the manufacture of films and sheets having a reticular or lattice-like structure from synthetic organic polymeric thermoplastic materials
FR1331095A (fr) * 1961-08-11 1963-06-28 Procédé et appareil d'étirage latéral de matière en feuilles continues
GB1083847A (en) * 1963-11-11 1967-09-20 Smith & Nephew Improvements in and relating to films of thermoplastic material and the like
GB1103583A (en) * 1963-11-12 1968-02-14 Metal Containers Ltd Reticular structures and method of manufacturing the same
BE754974A (fr) * 1969-06-27 1971-02-18 Cellu Prod Co Procede de fabrication de materiaux thermoplastiques reticulaires ou analogues, produits pour son execution et articles ainsi obtenus,
US3730821A (en) * 1970-11-23 1973-05-01 Hercules Inc Interconnected network structure
GB1470196A (en) * 1974-11-13 1977-04-14 Cooling Dev Ltd Contact packing
FR2299954A1 (fr) * 1975-02-05 1976-09-03 Fayard & Ravel Feuille notamment pour emballages et elements de conditionnement

Also Published As

Publication number Publication date
ES8106101A1 (es) 1981-07-16
ES491593A0 (es) 1981-07-16
AU5831180A (en) 1980-11-20
AU538194B2 (en) 1984-08-02
EP0021017B1 (en) 1984-01-25
NO801404L (no) 1980-11-19
FI70432C (fi) 1986-09-19
NO149476C (no) 1984-05-02
SU1075956A3 (ru) 1984-02-23
YU41714B (en) 1987-12-31
CA1162372A (en) 1984-02-21
EP0021017A1 (en) 1981-01-07
FI801538A (fi) 1980-11-19
YU129580A (en) 1983-04-30
NO149476B (no) 1984-01-16
PT71240A (en) 1980-06-01
PT71240B (en) 1981-08-04
DK206680A (da) 1980-11-19
DE3066250D1 (en) 1984-03-01

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: MOPLEFAN S.P.A.

Owner name: MONTEDISON S.P.A