GB1380447A - Method of heating - Google Patents

Method of heating

Info

Publication number
GB1380447A
GB1380447A GB1976072A GB1925173A GB1380447A GB 1380447 A GB1380447 A GB 1380447A GB 1976072 A GB1976072 A GB 1976072A GB 1925173 A GB1925173 A GB 1925173A GB 1380447 A GB1380447 A GB 1380447A
Authority
GB
United Kingdom
Prior art keywords
preform
blow
vinyl
moulding
ethylenically unsaturated
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
GB1976072A
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 US00247409A external-priority patent/US3830893A/en
Application filed by Monsanto Co filed Critical Monsanto Co
Publication of GB1380447A publication Critical patent/GB1380447A/en
Priority to GB1925176A priority Critical patent/GB1455007A/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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
    • B29C49/6445—Thermal conditioning of preforms characterised by temperature differential through the preform length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/786—Temperature
    • B29C2049/7861—Temperature of the preform
    • B29C2049/7862—Temperature of the preform characterised by temperature values or ranges
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/12—Dielectric heating
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

1380447 Blow-moulding; preform heating MONSANTO CO 24 April 1973 [25 April 1972] 19251/73 Heading B5A Thermoplastic preforms are selectively heated without degradation to orientation temperature for blow-moulding by exposure to a microwave energy field for ¢-30 seconds. The preform may be formed by extrusion-blow-moulding or injection and may have a finished neck portion and a body portion, only the latter being exposed to the microwaves, e.g. by shielding the neck portion. The body portion may be heated uniformly by use of suitably shaped or sized wave guides. The preform, after heating to a suitable temperature may be placed in a blowmould (48, Fig. 6, not shown), longitudinally stretched by plunger (53) to orient the material and blow-moulded by air supplied through orifices (54) in plunger (53). The preform may have a varying cross-section or wall thickness. The preform is preferably made from a polymer of high nitrile content, the nitrile monomer being acrylonitrile, methacrylonitrile &c. Comonomers may include: ethylenically unsaturated aromatics, e.g. styrene, which may be alkyl- or halo-substituted, esters of ethylenically unsaturated carboxylic acids, e.g. methyl acrylate, &c., ethylenically unsaturated carboxylic acids, e.g. acrylic acid, vinyl esters, e.g. vinyl acetate, vinyl and vinylidene halides, e.g. vinyl chloride, vinyl ethers and α-olefines, e.g. ethylene, propylene.
GB1976072A 1971-04-29 1973-04-24 Method of heating Expired GB1380447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1925176A GB1455007A (en) 1973-04-24 1976-05-11 Stitch markers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13869971A 1971-04-29 1971-04-29
US00247409A US3830893A (en) 1972-04-25 1972-04-25 Method of processing high nitrile preforms

Publications (1)

Publication Number Publication Date
GB1380447A true GB1380447A (en) 1975-01-15

Family

ID=26836424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1976072A Expired GB1380447A (en) 1971-04-29 1973-04-24 Method of heating

Country Status (1)

Country Link
GB (1) GB1380447A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439530A (en) * 2006-05-26 2008-01-02 Pera Innovation Ltd Selectively heating portions of a thermoplastics material for susequent processing
EP2210731A3 (en) * 2006-05-11 2012-08-22 Krones AG Microwave heating device for plastic preforms and method for heating plastic preforms by means of microwaves
WO2014106297A1 (en) * 2013-01-07 2014-07-10 Husky Injection Molding Systems Ltd. Molding system
US10071521B2 (en) 2015-12-22 2018-09-11 Mks Instruments, Inc. Method and apparatus for processing dielectric materials using microwave energy
WO2019048533A1 (en) * 2017-09-06 2019-03-14 Krones Ag Device for heating plastic preforms, comprising a stationary applicator and a rotary device
WO2019048528A1 (en) * 2017-09-06 2019-03-14 Krones Ag Device for heating plastic preforms, comprising a stationary applicator

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2210731A3 (en) * 2006-05-11 2012-08-22 Krones AG Microwave heating device for plastic preforms and method for heating plastic preforms by means of microwaves
EP2213435A3 (en) * 2006-05-11 2012-08-22 Krones AG Heating device for plastic blanks
EP2258535A3 (en) * 2006-05-11 2012-08-22 Krones AG Heating device for plastic blanks
EP2213434A3 (en) * 2006-05-11 2012-08-22 Krones AG Heating device for plastic blanks
GB2439530A (en) * 2006-05-26 2008-01-02 Pera Innovation Ltd Selectively heating portions of a thermoplastics material for susequent processing
GB2439530B (en) * 2006-05-26 2011-07-13 Pera Innovation Ltd Method of and apparatus for producing thermoplastic materials
RU2446047C2 (en) * 2006-05-26 2012-03-27 Пера Инновейшн Лимитед Method and device for production of moulded products
CN104884227A (en) * 2013-01-07 2015-09-02 赫斯基注塑系统有限公司 Molding system
WO2014106297A1 (en) * 2013-01-07 2014-07-10 Husky Injection Molding Systems Ltd. Molding system
CN104884227B (en) * 2013-01-07 2017-07-28 赫斯基注塑系统有限公司 Molding-system
US10773438B2 (en) 2013-01-07 2020-09-15 Husky Injection Molding Systems Ltd. Molding system
US10071521B2 (en) 2015-12-22 2018-09-11 Mks Instruments, Inc. Method and apparatus for processing dielectric materials using microwave energy
US10940635B2 (en) 2015-12-22 2021-03-09 Mks Instruments, Inc. Method and apparatus for processing dielectric materials using microwave energy
WO2019048533A1 (en) * 2017-09-06 2019-03-14 Krones Ag Device for heating plastic preforms, comprising a stationary applicator and a rotary device
WO2019048528A1 (en) * 2017-09-06 2019-03-14 Krones Ag Device for heating plastic preforms, comprising a stationary applicator
US11787090B2 (en) 2017-09-06 2023-10-17 Krones Ag Apparatus for heating plastic preforms with stationary applicator

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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