FR2351772A1 - Extruded plastic net including polypropylene - has size of filaments forming mesh calculated to reduce breakage on passage from extruder - Google Patents

Extruded plastic net including polypropylene - has size of filaments forming mesh calculated to reduce breakage on passage from extruder

Info

Publication number
FR2351772A1
FR2351772A1 FR7703056A FR7703056A FR2351772A1 FR 2351772 A1 FR2351772 A1 FR 2351772A1 FR 7703056 A FR7703056 A FR 7703056A FR 7703056 A FR7703056 A FR 7703056A FR 2351772 A1 FR2351772 A1 FR 2351772A1
Authority
FR
France
Prior art keywords
net
extruder
passage
extruded plastic
size
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.)
Withdrawn
Application number
FR7703056A
Other languages
French (fr)
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.)
Conwed Corp
Original Assignee
Conwed Corp
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 Conwed Corp filed Critical Conwed Corp
Publication of FR2351772A1 publication Critical patent/FR2351772A1/en
Withdrawn legal-status Critical Current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
    • 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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2028/00—Nets or the like

Landscapes

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

Abstract

Lightweight extruded plastic net has the lengti (L) of each filament forming the mesh of the net given by the formula L/W >64.3 (or 11.5) x Dn/Dp where L is in cm or ins. per sq. metre or square foot of net; W is the weight per sq. metre or sq. ft. in kgms or lbs., and Dn is the density of the filaments. The net also includes polypropylene filaments whose density is Dp. The net, which is pref. extruded in tubular form, is less likely to break as it is drawn from the extrusion head and cooled.
FR7703056A 1976-02-05 1977-02-03 Extruded plastic net including polypropylene - has size of filaments forming mesh calculated to reduce breakage on passage from extruder Withdrawn FR2351772A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65539876A 1976-02-05 1976-02-05

Publications (1)

Publication Number Publication Date
FR2351772A1 true FR2351772A1 (en) 1977-12-16

Family

ID=24628738

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7703056A Withdrawn FR2351772A1 (en) 1976-02-05 1977-02-03 Extruded plastic net including polypropylene - has size of filaments forming mesh calculated to reduce breakage on passage from extruder

Country Status (9)

Country Link
JP (1) JPS5296280A (en)
BE (1) BE850589A (en)
DE (2) DE7703274U1 (en)
ES (1) ES455613A1 (en)
FI (1) FI770343A (en)
FR (1) FR2351772A1 (en)
NL (1) NL7700547A (en)
NO (1) NO770019L (en)
SE (1) SE7700721L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012211617A1 (en) 2012-07-04 2014-01-09 Raumedic Ag Tubular mat, method for producing such a tubular mat and tool for extruding such a tubular mat

Also Published As

Publication number Publication date
JPS5296280A (en) 1977-08-12
DE2704678A1 (en) 1977-08-11
NL7700547A (en) 1977-08-09
SE7700721L (en) 1977-08-06
NO770019L (en) 1977-08-08
BE850589A (en) 1977-05-16
FI770343A (en) 1977-08-06
DE7703274U1 (en) 1977-11-03
ES455613A1 (en) 1978-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse