GB1353932A - Method and apparatus for producing patterned thermoplastic sheet - Google Patents

Method and apparatus for producing patterned thermoplastic sheet

Info

Publication number
GB1353932A
GB1353932A GB3036971A GB3036971A GB1353932A GB 1353932 A GB1353932 A GB 1353932A GB 3036971 A GB3036971 A GB 3036971A GB 3036971 A GB3036971 A GB 3036971A GB 1353932 A GB1353932 A GB 1353932A
Authority
GB
United Kingdom
Prior art keywords
thermoplastic
patterning
layers
patterned
grooves
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
GB3036971A
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.)
Daicel Corp
Original Assignee
Daicel 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 Daicel Corp filed Critical Daicel Corp
Publication of GB1353932A publication Critical patent/GB1353932A/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
    • 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
    • B29C48/304—Extrusion nozzles or dies 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
    • B29C48/03—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
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • 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

Abstract

1353932 Extruding patterned sheet DAICEL KK 29 June 1971 [1 July 1970] 30369/71 Heading B5A An extruded thermoplastics sheet comprises a thermoplastic base material 2, Figs. 11 and 16, into which has been introduced, upstream of the die outlet, a longitudinally extending repeating pattern of a patterning thermoplastic, from an orifice 13, Fig. 6, of a stationary cylindrical member 11 extending partly or completely across the die passage 15 and to which the patterning thermoplastic is supplied in the desired pattern from grooves 19, Fig. 5 in the external surface of a rotated cylinder 12. The patterning thermoplastic is supplied to the, grooves 19, from the interior of the cylinder 12, by openings 14 through the cylinder wall. The patterning thermoplastic may be provided in two or more separate layers when supplied from a pair of spaced apart orifices 13, and is preferably of a darker or denser colour, than the base material which may be transparent or translucent. The thermoplastic material may comprise cellulose acetate or propionate. The pattern may be varied by varying the speed of rotation of the member 11. In the described embodiment the materials are each supplied from a heated screw extrusion source, and the patterning thermoplastic is introduced intermediate opposed layers of the base material formed by division in flowing around the member 11. The patterning may comprise a single layer of stripes extending at an angle to the longitudinal axes of the sheet, obtained from helical grooves 19 in the surface of a rotating member 12. Alternatively with a pair of orifices 13, these patterned stripes can be obtained extending at the same angle in spaced layers. With intersecting helical grooves of opposite hand, a single or a spaced pair of similarly patterned layers can be obtained. A single or spaced pair of patterned layers 3 of the Fig. 11 configuration is obtained from grooves 19 of a similar configuration in a rotated member 12, and a patterned layer or spaced layers 3 of the Fig. 16 configuration is similarly obtained.
GB3036971A 1970-07-01 1971-06-29 Method and apparatus for producing patterned thermoplastic sheet Expired GB1353932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5862370 1970-07-01

Publications (1)

Publication Number Publication Date
GB1353932A true GB1353932A (en) 1974-05-22

Family

ID=13089684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3036971A Expired GB1353932A (en) 1970-07-01 1971-06-29 Method and apparatus for producing patterned thermoplastic sheet

Country Status (1)

Country Link
GB (1) GB1353932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052491A2 (en) * 1980-11-17 1982-05-26 Monsanto Company Extruding colored thermoplastic resin sheets
US4611987A (en) * 1984-07-23 1986-09-16 Cosden Technology, Inc. Apparatus for forming multilayer thermoplastic resin extrusions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052491A2 (en) * 1980-11-17 1982-05-26 Monsanto Company Extruding colored thermoplastic resin sheets
EP0052491A3 (en) * 1980-11-17 1983-04-06 Monsanto Company Extruding colored thermoplastic resin sheets
US4611987A (en) * 1984-07-23 1986-09-16 Cosden Technology, Inc. Apparatus for forming multilayer thermoplastic resin extrusions

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee