GB1526723A - Co-extruded sheet with properties resembling a cross-laminate and method of producing said sheet - Google Patents

Co-extruded sheet with properties resembling a cross-laminate and method of producing said sheet

Info

Publication number
GB1526723A
GB1526723A GB16899/78A GB1689978A GB1526723A GB 1526723 A GB1526723 A GB 1526723A GB 16899/78 A GB16899/78 A GB 16899/78A GB 1689978 A GB1689978 A GB 1689978A GB 1526723 A GB1526723 A GB 1526723A
Authority
GB
United Kingdom
Prior art keywords
streams
laminate
layers
annular
exit slot
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
GB16899/78A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB16899/78A priority Critical patent/GB1526723A/en
Publication of GB1526723A publication Critical patent/GB1526723A/en
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
    • 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
    • B29C55/18—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
    • 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
    • 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
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/20—Articles comprising two or more components, e.g. co-extruded layers the components being layers one of the layers being a strip, e.g. a partially embedded strip
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/23—Articles comprising two or more components, e.g. co-extruded layers the components being layers with means for avoiding adhesion of the layers, e.g. for forming peelable layers
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • 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
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • B29C55/146—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly transversely to the direction of feed and then parallel thereto
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

1526723 Co-extruding laminates O-B RASMUSSEN 27 Aug 1975 [5 July 1974] 16899/78 Divided out of 1526722 Heading B5A A method of making a laminate of at least two layers, comprises rotating relative to one another in a circular extrusion die having an exit slot 16 at least two concentric tubular layers, each comprising a stream 1, 2 on an array of streams of molten polymer material and simultaneously melt stretching each of the layers substantially in one direction, bonding the layers in the die immediately prior to their passage through the exit slot to form a laminate with the said directions stretching and solidifying the laminate while maintaining the crossing melt stretched structure, the bonding in the laminate being sufficiently weak to permit local delamination upon tearing. In Fig. 1, the streams 1, 2 are fed to annular channels 4, 5 in the two walls in the annular track 6 in which the rings 7, 8 are moved in opposite directions, the rings having rows of partitions 9, 10 forming two rows 11, 12 of openings through which the streams are extruded into the collecting chamber 15 terminating in exit slot 16, the streams being attenuated by the extrusion and united in the collecting chamber. In the alternative apparatus of Fig. 2, polymers A and B are distributed from fixed inlet 17 into concentric circular streams, A passing through annular conduits 22, 23 and B through 24, the streams through three circular arrays of channels into annular chambers 28, 29, 30 respectively. The parts 19 and 20 are rotated in different directions and form a co-extrusion for two layers, the molten streams being attenuated by passage through the annular conduits 35, 36 and united in chamber 38.
GB16899/78A 1975-08-27 1975-08-27 Co-extruded sheet with properties resembling a cross-laminate and method of producing said sheet Expired GB1526723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16899/78A GB1526723A (en) 1975-08-27 1975-08-27 Co-extruded sheet with properties resembling a cross-laminate and method of producing said sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16899/78A GB1526723A (en) 1975-08-27 1975-08-27 Co-extruded sheet with properties resembling a cross-laminate and method of producing said sheet

Publications (1)

Publication Number Publication Date
GB1526723A true GB1526723A (en) 1978-09-27

Family

ID=10085696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16899/78A Expired GB1526723A (en) 1975-08-27 1975-08-27 Co-extruded sheet with properties resembling a cross-laminate and method of producing said sheet

Country Status (1)

Country Link
GB (1) GB1526723A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233569A2 (en) * 1986-02-15 1987-08-26 BASF Aktiengesellschaft Method of manufacturing a plane semi-finished product
EP0281638A2 (en) * 1987-02-09 1988-09-14 BASF Aktiengesellschaft Extruder head for the manufacturing of semi-finished products from thermoplastic materials
US4874653A (en) * 1985-10-04 1989-10-17 Rasmussen O B High strength laminate
US5024799A (en) * 1987-09-14 1991-06-18 Tredegar Industries, Inc. Method for producing an embossed oriented film
US5108814A (en) * 1987-09-14 1992-04-28 Tredegar Industries, Inc. Embossed oriented film
EP0611200A1 (en) 1993-02-10 1994-08-17 Société à Responsabilité dite: CAPRY Closure sealed device and joint of an enclosure to an external pipe
US5626944A (en) * 1992-01-29 1997-05-06 Rasmussen; Ole-Bendt Laminated films
US6403176B1 (en) * 1993-12-08 2002-06-11 Andre Patouraux Packaging laminate for bags
WO2002096634A1 (en) * 2001-05-29 2002-12-05 Saltech Inc. Reinforced plastic film
US7651653B2 (en) 2004-12-22 2010-01-26 Kimberly-Clark Worldwide, Inc. Machine and cross-machine direction elastic materials and methods of making same
US7932196B2 (en) 2003-08-22 2011-04-26 Kimberly-Clark Worldwide, Inc. Microporous stretch thinned film/nonwoven laminates and limited use or disposable product applications
US9134471B2 (en) 2006-06-28 2015-09-15 3M Innovative Properties Company Oriented polymeric articles and method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874653A (en) * 1985-10-04 1989-10-17 Rasmussen O B High strength laminate
EP0233569A2 (en) * 1986-02-15 1987-08-26 BASF Aktiengesellschaft Method of manufacturing a plane semi-finished product
EP0233569A3 (en) * 1986-02-15 1989-07-26 Basf Aktiengesellschaft Method of manufacturing a plane semi-finished product
EP0281638A2 (en) * 1987-02-09 1988-09-14 BASF Aktiengesellschaft Extruder head for the manufacturing of semi-finished products from thermoplastic materials
EP0281638A3 (en) * 1987-02-09 1989-07-26 Basf Aktiengesellschaft Extruder head for the manufacturing of semi-finished products from thermoplastic materials
US5108814A (en) * 1987-09-14 1992-04-28 Tredegar Industries, Inc. Embossed oriented film
US5024799A (en) * 1987-09-14 1991-06-18 Tredegar Industries, Inc. Method for producing an embossed oriented film
US5626944A (en) * 1992-01-29 1997-05-06 Rasmussen; Ole-Bendt Laminated films
EP0611200A1 (en) 1993-02-10 1994-08-17 Société à Responsabilité dite: CAPRY Closure sealed device and joint of an enclosure to an external pipe
US6403176B1 (en) * 1993-12-08 2002-06-11 Andre Patouraux Packaging laminate for bags
WO2002096634A1 (en) * 2001-05-29 2002-12-05 Saltech Inc. Reinforced plastic film
US7932196B2 (en) 2003-08-22 2011-04-26 Kimberly-Clark Worldwide, Inc. Microporous stretch thinned film/nonwoven laminates and limited use or disposable product applications
US7651653B2 (en) 2004-12-22 2010-01-26 Kimberly-Clark Worldwide, Inc. Machine and cross-machine direction elastic materials and methods of making same
US9134471B2 (en) 2006-06-28 2015-09-15 3M Innovative Properties Company Oriented polymeric articles and method
US9259885B2 (en) 2006-06-28 2016-02-16 3M Innovative Properties Company Oriented polymeric articles and method

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee