GB1083847A - Improvements in and relating to films of thermoplastic material and the like - Google Patents

Improvements in and relating to films of thermoplastic material and the like

Info

Publication number
GB1083847A
GB1083847A GB4440563A GB4440563A GB1083847A GB 1083847 A GB1083847 A GB 1083847A GB 4440563 A GB4440563 A GB 4440563A GB 4440563 A GB4440563 A GB 4440563A GB 1083847 A GB1083847 A GB 1083847A
Authority
GB
United Kingdom
Prior art keywords
perforated
film
thermoplastic material
roller
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
GB4440563A
Inventor
Arthur Ripon Stephenson
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.)
Smith and Nephew PLC
TJ Smith and Nephew Ltd
Original Assignee
Smith and Nephew PLC
TJ Smith and Nephew Ltd
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 Smith and Nephew PLC, TJ Smith and Nephew Ltd filed Critical Smith and Nephew PLC
Priority to GB4440563A priority Critical patent/GB1083847A/en
Publication of GB1083847A publication Critical patent/GB1083847A/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D28/00—Producing nets or the like, e.g. meshes, lattices

Abstract

1,083,847. Perforated and reticulated films. T. J. SMITH & NEPHEW Ltd. Jan. 22, 1965 [Nov. 11, 1963], No. 44405/63. Heading B5B. In a method for forming an openwork net structure, a film of organic thermoplastic material is perforated by heat-assisted means, and then, or subsequently, submitted to biaxial orientation to permanently stretch the film. The film of, e.g. polyester, polypropylene or polyethylene may be perforated by passage between two driven rollers, one of which is provided with radially projecting heated pins, and the other of which has a cushioning surface, and then biaxially stretched on a tenter frame. The perforating pins may be heated by conduction from heating means within the roller, or by radiation from external heaters. The film may also be perforated by acting upon it with a flame while it lies in contact with the surface of an indented roller (Specification 1,012,963). The perforations are preferably arranged in a regular pattern.
GB4440563A 1963-11-11 1963-11-11 Improvements in and relating to films of thermoplastic material and the like Expired GB1083847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4440563A GB1083847A (en) 1963-11-11 1963-11-11 Improvements in and relating to films of thermoplastic material and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4440563A GB1083847A (en) 1963-11-11 1963-11-11 Improvements in and relating to films of thermoplastic material and the like

Publications (1)

Publication Number Publication Date
GB1083847A true GB1083847A (en) 1967-09-20

Family

ID=10433150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4440563A Expired GB1083847A (en) 1963-11-11 1963-11-11 Improvements in and relating to films of thermoplastic material and the like

Country Status (1)

Country Link
GB (1) GB1083847A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021017A1 (en) * 1979-05-18 1981-01-07 Montedison S.p.A. Process and device for the preparation of composite reticular structures
US4619724A (en) * 1981-12-20 1986-10-28 Yser Chatow Method for producing fabric and garments
DE3939363A1 (en) * 1989-11-29 1991-06-06 Aesculap Ag Resorbable plastic implants production - by extruding rectangular poly-L-lactide cross=section and stretching it within specific temp. range to acquire high mechanical strength
US5156495A (en) 1978-10-16 1992-10-20 P. L. G. Research Limited Plastic material mesh structure
US5419659A (en) 1978-10-16 1995-05-30 P.L.G. Research Limited Plastic material mesh structure
US5554243A (en) * 1993-07-15 1996-09-10 Uni-Charm Corporation Method for manufacturing absorbent member for absorbent article
EP0820856A1 (en) * 1996-07-26 1998-01-28 Harilaos Kavvadias Perforated pre-streched strech film for pallet wrapping
US7037100B2 (en) 2002-10-09 2006-05-02 3M Innovative Properties Company Apparatus for flame-perforating films and methods of flame-perforating films
WO2013152375A2 (en) 2012-04-12 2013-10-17 Teufelberger Gesellschaft M.B.H. Perforated film
WO2021234494A1 (en) 2020-05-19 2021-11-25 3M Innovative Properties Company Porous coated abrasive article and method of making the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156495A (en) 1978-10-16 1992-10-20 P. L. G. Research Limited Plastic material mesh structure
US5419659A (en) 1978-10-16 1995-05-30 P.L.G. Research Limited Plastic material mesh structure
EP0021017A1 (en) * 1979-05-18 1981-01-07 Montedison S.p.A. Process and device for the preparation of composite reticular structures
US4619724A (en) * 1981-12-20 1986-10-28 Yser Chatow Method for producing fabric and garments
DE3939363A1 (en) * 1989-11-29 1991-06-06 Aesculap Ag Resorbable plastic implants production - by extruding rectangular poly-L-lactide cross=section and stretching it within specific temp. range to acquire high mechanical strength
US5554243A (en) * 1993-07-15 1996-09-10 Uni-Charm Corporation Method for manufacturing absorbent member for absorbent article
EP0820856A1 (en) * 1996-07-26 1998-01-28 Harilaos Kavvadias Perforated pre-streched strech film for pallet wrapping
US7037100B2 (en) 2002-10-09 2006-05-02 3M Innovative Properties Company Apparatus for flame-perforating films and methods of flame-perforating films
US7686996B2 (en) 2002-10-09 2010-03-30 3M Innovative Properties Company Methods for flame-perforating films
US7980849B2 (en) 2002-10-09 2011-07-19 3M Innovative Properties Company Apparatus and method for flame-perforating films
WO2013152375A2 (en) 2012-04-12 2013-10-17 Teufelberger Gesellschaft M.B.H. Perforated film
WO2021234494A1 (en) 2020-05-19 2021-11-25 3M Innovative Properties Company Porous coated abrasive article and method of making the same

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