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GB871959A - Laminated materials and the production thereof - Google Patents

Laminated materials and the production thereof

Info

Publication number
GB871959A
GB871959A GB31461/57A GB3146157A GB871959A GB 871959 A GB871959 A GB 871959A GB 31461/57 A GB31461/57 A GB 31461/57A GB 3146157 A GB3146157 A GB 3146157A GB 871959 A GB871959 A GB 871959A
Authority
GB
United Kingdom
Prior art keywords
laminates
containers
layer
layers
extrusion
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
GB31461/57A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica 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
Application filed by Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB871959A publication Critical patent/GB871959A/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
    • H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Laminated Bodies (AREA)
  • Bag Frames (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

871,959. Laminates. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. Oct. 8, 1957 [Oct. 11, 1956 (2)], No. 31461/57. Addition to 810,023. Class 140. Laminated materials comprise at least one layer of at least 70% crystalline high polymer of an alpha-olefin containing more than two carbon atoms, for example propylene or alphabutene, or a mixture of such olefins, combined with at least one layer of another material. Examples of other materials are cellulose acetobutyrate, polyvinyl chloride, polyvinyl alcohol, polyethylene, polyamides, a mixture of 85 parts of polyvinyl chloride with 15 parts of a copolymer of 60% butadiene and 40% acrytonitrile, a copolymer of 90% methylmethacrylate and 10% butyl acrylate, paper and fabrics. Two layers may be extruded downwardly through parallel slits and may be combined together, or with an intermediate preformed layer, by passage between heated or other pressure rolls, and individual layers, or the laminates, may be stretched by adjusting the speed of supply rolls or the final winding roll. Tubular layers formed by extrusion may be inserted one within the other, closed at their free ends and inflated, whilst being heated to within about 5‹ C. of the melting point of the layer most readily melted, to form tubular laminates. Alternatively the layers may be formed by simultaneous extrusion through coaxial annular nozzles and be held by pinch rolls and inflated during lamination to four times the extrusion diameter. The products are heatsealable and gas and vapour impermeable at temperatures up to 100‹ C.; they may be used for packing and wrapping goods and containers, may be made by blow and vacuum moulding into containers sterilizable by heat or, in the case of tubular sheet (which can normally be stored rolled up in flattened form), into small bags and containers, e.g. by cutting to length and sealing one end. Containers made from the laminates may be metallized by vacuum vapour deposition of aluminium or other metals.
GB31461/57A 1956-10-11 1957-10-08 Laminated materials and the production thereof Expired GB871959A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1486656 1956-10-11
IT1186376X 1956-10-11

Publications (1)

Publication Number Publication Date
GB871959A true GB871959A (en) 1961-07-05

Family

ID=26326746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31461/57A Expired GB871959A (en) 1956-10-11 1957-10-08 Laminated materials and the production thereof

Country Status (3)

Country Link
BE (1) BE561516A (en)
FR (1) FR1186376A (en)
GB (1) GB871959A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769137A (en) * 1970-04-25 1973-10-30 Nitto Electric Ind Co Method for preparing laminated film of polymeric substances
EP0001490A1 (en) * 1977-10-03 1979-04-18 Mobil Oil Corporation Packaging film with improved heat sealability
EP0276908A1 (en) * 1987-01-08 1988-08-03 Exxon Chemical Patents Inc. Retort pouch and coextruded film therefor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL278213A (en) * 1961-05-10
BE635118A (en) * 1962-07-19
US4230774A (en) * 1978-02-21 1980-10-28 The Goodyear Tire & Rubber Company Heat sealable laminate
US4169910A (en) * 1978-06-28 1979-10-02 Union Carbide Corporation Multilayer film including polyolefin layers and a polybutylene layer useful for the production of bags

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769137A (en) * 1970-04-25 1973-10-30 Nitto Electric Ind Co Method for preparing laminated film of polymeric substances
EP0001490A1 (en) * 1977-10-03 1979-04-18 Mobil Oil Corporation Packaging film with improved heat sealability
EP0276908A1 (en) * 1987-01-08 1988-08-03 Exxon Chemical Patents Inc. Retort pouch and coextruded film therefor

Also Published As

Publication number Publication date
BE561516A (en)
FR1186376A (en) 1959-08-21

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