GB1308866A - Method of providing holes in a sheet of synthetic resinous material - Google Patents

Method of providing holes in a sheet of synthetic resinous material

Info

Publication number
GB1308866A
GB1308866A GB2329971*A GB2329971A GB1308866A GB 1308866 A GB1308866 A GB 1308866A GB 2329971 A GB2329971 A GB 2329971A GB 1308866 A GB1308866 A GB 1308866A
Authority
GB
United Kingdom
Prior art keywords
sheet
stretching
synthetic resinous
providing holes
resinous material
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
GB2329971*A
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.)
Sanders B S
Original Assignee
Sanders B S
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 ZA701801A external-priority patent/ZA701801B/en
Application filed by Sanders B S filed Critical Sanders B S
Publication of GB1308866A publication Critical patent/GB1308866A/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

1308866 Perforating plastics sheet B S SANDERS 19 April 1971 [17 March 1970 30 Oct 1970] 23299/71 Heading B8A A method of providing holes H in a synthetic resinous sheet material, e.g. HD polyethylene, includes the steps of stretching an extruded sheet sufficiently to cause a permanent set in the are B, e.g. by rollers operating at different speeds, weakening the sheet at a plurality of positions in an area D, e.g. by roller cutters, and further stretching the sheet in an area F in the same direction as before to open the weakened portions. The sheet can be weakened by embossing. Stretching can take place in a direction transverse to the direction of extrusion. The sheet can be heated. A number of layers of the sheet can be slit at the same time. The sheet can be printed.
GB2329971*A 1970-03-17 1971-04-19 Method of providing holes in a sheet of synthetic resinous material Expired GB1308866A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA701801A ZA701801B (en) 1970-03-17 1970-03-17 Providing holes in synthetic sheets
ZA707377 1970-10-30

Publications (1)

Publication Number Publication Date
GB1308866A true GB1308866A (en) 1973-03-07

Family

ID=27131004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2329971*A Expired GB1308866A (en) 1970-03-17 1971-04-19 Method of providing holes in a sheet of synthetic resinous material

Country Status (9)

Country Link
AU (1) AU2584071A (en)
BE (1) BE764429A (en)
CH (1) CH522482A (en)
DE (1) DE2110753A1 (en)
ES (1) ES389193A1 (en)
FR (1) FR2083338A1 (en)
GB (1) GB1308866A (en)
IL (1) IL36264A (en)
NL (1) NL7103108A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221691A (en) * 1988-07-15 1990-02-14 Courtaulds Films & Packaging Polymeric films
GB2221692A (en) * 1988-07-15 1990-02-14 Courtaulds Films & Packaging Packaging method
US5262107A (en) * 1991-06-25 1993-11-16 Applied Extrusion Technologies, Inc. Method of making apertured film fabrics

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872304A (en) * 1985-12-12 1989-10-10 Tri-Tech Systems International Inc. Closure cap with a seal and method of and apparatus for forming such closure and seal
US4925617A (en) * 1987-06-10 1990-05-15 Tri-Tech Systems International, Inc. Method of forming a closure cap with a seal
US4823967A (en) * 1987-06-10 1989-04-25 Tri-Tech Systems International Inc. Closure for container and method for forming the closure
US4886947A (en) * 1987-06-17 1989-12-12 Tri-Tech Systems International, Inc. Closure system and method of forming and using same
US4856667A (en) * 1987-06-17 1989-08-15 Tri-Tech Systems International Inc. Container and cap
US4811857A (en) * 1987-06-17 1989-03-14 Tri-Tech Systems International Inc. Closure system and method of forming and using same
US5100009A (en) 1989-05-03 1992-03-31 Tri-Tech Systems International Inc. Closure and access systems for containers and methods of manufacture and use
US6062408A (en) * 1997-04-09 2000-05-16 Dtl Technology Limited Partnership Wide mouth hot fill container
US6237791B1 (en) 1997-04-09 2001-05-29 Dtl Technology Limited Partnership Wide mouth hot fill container
DE19812756A1 (en) * 1998-03-23 1999-10-07 Inst Textil & Verfahrenstech Breathable membrane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221691A (en) * 1988-07-15 1990-02-14 Courtaulds Films & Packaging Polymeric films
GB2221692A (en) * 1988-07-15 1990-02-14 Courtaulds Films & Packaging Packaging method
GB2221691B (en) * 1988-07-15 1992-04-15 Courtaulds Films & Packaging Polymeric films for the storage or packing of plant material
GB2221692B (en) * 1988-07-15 1992-04-15 Courtaulds Films & Packaging Storage and packaging of plant material
US5262107A (en) * 1991-06-25 1993-11-16 Applied Extrusion Technologies, Inc. Method of making apertured film fabrics

Also Published As

Publication number Publication date
FR2083338A1 (en) 1971-12-17
IL36264A0 (en) 1971-04-28
CH522482A (en) 1972-06-30
AU2584071A (en) 1972-08-31
IL36264A (en) 1975-02-10
NL7103108A (en) 1971-09-21
DE2110753A1 (en) 1971-10-07
BE764429A (en) 1971-08-16
ES389193A1 (en) 1974-05-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees