GB1443501A - Method of making thermoplastics articles - Google Patents

Method of making thermoplastics articles

Info

Publication number
GB1443501A
GB1443501A GB364675A GB364675A GB1443501A GB 1443501 A GB1443501 A GB 1443501A GB 364675 A GB364675 A GB 364675A GB 364675 A GB364675 A GB 364675A GB 1443501 A GB1443501 A GB 1443501A
Authority
GB
United Kingdom
Prior art keywords
parison
mould
density
article
outer layer
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
GB364675A
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.)
Continental Can Co Inc
Original Assignee
Continental Can Co Inc
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 to DE19742459063 priority Critical patent/DE2459063A1/en
Priority to BE152147A priority patent/BE824108A/en
Priority claimed from BE152147A external-priority patent/BE824108A/en
Application filed by Continental Can Co Inc filed Critical Continental Can Co Inc
Priority to GB364675A priority patent/GB1443501A/en
Publication of GB1443501A publication Critical patent/GB1443501A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
    • 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
    • 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
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons

Abstract

1443501 Blow-moulding tubular laminates CONTINENTAL CAN CO Inc 28 Jan 1975 3646/75 Heading B5A A thermoplastics article having easily separable flash is made by coextruding in open mould section 42, 43 a laminate in the form of a parison 6, having a high-density inner layer 4 and a low-density outer layer 5 then closing the mould sections to enclose the parison and in closing the mould squeezing the laminate at the parting line of the mould sections to an extent sufficient to squeeze out the high-density layer at the parting line leaving thereat a thin easily severable web of low density plastics connecting the flash with the parison (see Fig. 4) and expanding the parison to form the article within the mould. Preferably, the inner layer is HD and the outer layer LD, polythene; if the article is to be coloured, the pigment is preferably incorporated in the outer layer.
GB364675A 1974-12-13 1975-01-28 Method of making thermoplastics articles Expired GB1443501A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19742459063 DE2459063A1 (en) 1974-12-13 1974-12-13 METHOD OF MANUFACTURING AN ARTICLE FROM THERMOPLASTIC MATERIAL
BE152147A BE824108A (en) 1975-01-06 1975-01-06 PROCESS FOR THE MANUFACTURE OF HOLLOW PLASTIC OBJECTS AND OBJECT MADE BY THIS PROCESS
GB364675A GB1443501A (en) 1974-12-13 1975-01-28 Method of making thermoplastics articles

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19742459063 DE2459063A1 (en) 1974-12-13 1974-12-13 METHOD OF MANUFACTURING AN ARTICLE FROM THERMOPLASTIC MATERIAL
BE152147A BE824108A (en) 1975-01-06 1975-01-06 PROCESS FOR THE MANUFACTURE OF HOLLOW PLASTIC OBJECTS AND OBJECT MADE BY THIS PROCESS
BE824108 1975-01-06
GB364675A GB1443501A (en) 1974-12-13 1975-01-28 Method of making thermoplastics articles

Publications (1)

Publication Number Publication Date
GB1443501A true GB1443501A (en) 1976-07-21

Family

ID=27424633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB364675A Expired GB1443501A (en) 1974-12-13 1975-01-28 Method of making thermoplastics articles

Country Status (2)

Country Link
DE (1) DE2459063A1 (en)
GB (1) GB1443501A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532621A1 (en) * 1982-09-06 1984-03-09 Colgate Palmolive Co Container having a catenary-shaped contour
EP0205237A2 (en) * 1985-06-11 1986-12-17 Owens-Illinois, Inc. Improved process for extruding high molecular weight, high density linear ethylene polymers to form heavy tubular members
EP2487034A1 (en) * 2011-02-11 2012-08-15 Sotralentz Packaging S.A.S. Multilayer plastic container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09277361A (en) * 1996-04-18 1997-10-28 Nippon Steel Chem Co Ltd Multilayered blow molded object and molding thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532621A1 (en) * 1982-09-06 1984-03-09 Colgate Palmolive Co Container having a catenary-shaped contour
EP0205237A2 (en) * 1985-06-11 1986-12-17 Owens-Illinois, Inc. Improved process for extruding high molecular weight, high density linear ethylene polymers to form heavy tubular members
EP0205237A3 (en) * 1985-06-11 1987-12-16 Owens-Illinois, Inc. Improved process for extruding high molecular weight, high density linear ethylene polymers to form heavy tubular members
EP2487034A1 (en) * 2011-02-11 2012-08-15 Sotralentz Packaging S.A.S. Multilayer plastic container

Also Published As

Publication number Publication date
DE2459063A1 (en) 1976-06-16

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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