GB1289716A – – Google Patents
GB1289716A – – Google Patents
Info
Publication number
GB1289716A
GB1289716A
GB1289716DA
GB1289716A
GB 1289716 A
GB1289716 A
GB 1289716A
GB 1289716D A
GB1289716D A
GB 1289716DA
GB 1289716 A
GB1289716 A
GB 1289716A
Authority
GB
United Kingdom
Prior art keywords
ribbons
strands
filaments
sets
plastics
Prior art date
1968-09-20
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
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.)
1968-09-20
Filing date
1969-09-12
Publication date
1972-09-20
1969-09-12
Application filed
filed
Critical
1972-09-20
Publication of GB1289716A
publication
Critical
patent/GB1289716A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
B29C48/25—Component parts, details or accessories; Auxiliary operations
B29C48/30—Extrusion nozzles or dies
B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
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
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
B29C48/25—Component parts, details or accessories; Auxiliary operations
B29C48/30—Extrusion nozzles or dies
B29C48/301—Extrusion nozzles or dies having reciprocating, oscillating or rotating parts
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
Abstract
1289716 Extruding plastics netting G S NALLE Jnr 12 Sept 1969 [20 Sept 1968 25 Sept 1968] 45197/69 Heading B5A [Also in Division D1] Extruded plastics netting comprising intersecting sets of parallel strands is made using relatively rotating dies 17, 18, Fig. 2, with the strands of one set being extruded through slots 31, each such slot having one end nearer a circle of extrusion orifices 30 such that in operation the set of strands extruded from orifices 30 are bonded over a portion only of the width of the strands from slots 31, see also Fig. 5. In the die construction shown, the ribbons and filaments bond downstream of the dies, although bonding may occur at the die, see Fig. 4.(not reproduced). The product, Fig. 5, comprises ribbons 35 and filaments 36, the latter being bonded as at 38 across part only of the width of the ribbons. In the embodiment of Figs. 3 and 6 (not shown) both sets of strands are in the form of overlapping ribbons, and in the embodiment of Fig. 7 (not shown), the ribbons are bonded externally to two intersecting sets of filaments. The ribbons may be of various cross-sectional shapes, the filaments may be tubular, and the materials of the sets of strands may differ in composition or colour. A different coloured plastics may be delivered to each extrusion orifice. Plastics specified are polyethylene, polypropylene, polyamide, a vinyl polymer or copolymer, styrene or acrylic polymers or copolymers, and cellulosic material. The material may be foamed. The extrusion apparatus comprises means for cooling the extrudate such as a water bath 29, Fig. 1 (not shown), or a supply of expanding gas.
GB1289716D
1968-09-20
1969-09-12
Expired
GB1289716A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US76114268A
1968-09-20
1968-09-20
US76251968A
1968-09-25
1968-09-25
Publications (1)
Publication Number
Publication Date
GB1289716A
true
GB1289716A
(en)
1972-09-20
Family
ID=27116933
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1289716D
Expired
GB1289716A
(en)
1968-09-20
1969-09-12
Country Status (1)
Country
Link
GB
(1)
GB1289716A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2266540A
(en)
*
1992-04-23
1993-11-03
Jesse Yang
A process for forming a grid of polymeric material.
1969
1969-09-12
GB
GB1289716D
patent/GB1289716A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2266540A
(en)
*
1992-04-23
1993-11-03
Jesse Yang
A process for forming a grid of polymeric material.
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Legal Events
Date
Code
Title
Description
1973-01-31
PS
Patent sealed [section 19, patents act 1949]
1974-04-03
PLNP
Patent lapsed through nonpayment of renewal fees
