GB1210513A - Continuous foam casting process - Google Patents

Continuous foam casting process

Info

Publication number
GB1210513A
GB1210513A GB1568767A GB1568767A GB1210513A GB 1210513 A GB1210513 A GB 1210513A GB 1568767 A GB1568767 A GB 1568767A GB 1568767 A GB1568767 A GB 1568767A GB 1210513 A GB1210513 A GB 1210513A
Authority
GB
United Kingdom
Prior art keywords
foamed
conveyers
facing sheet
plastics
moulding
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
GB1568767A
Inventor
David Robin Lander
Thomas Alfred Stanley
Lesley Hinds
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1568767A priority Critical patent/GB1210513A/en
Priority to FR1567329D priority patent/FR1567329A/fr
Publication of GB1210513A publication Critical patent/GB1210513A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/203—Expanding the moulding material in a vertical channel
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols

Abstract

1,210,513. Moulding foamed plastics; foamed plastics laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 March, 1968 [5 April, 1967], No. 15687/67. Headings B5A and B5N. [Also in Division C3] Foamed synthetic plastics articles, optionally provided with a facing sheet on one or more surfaces are made from a foam precursor or foaming material by introducing the material into an orifice defined by downwardly moving conveyers; the length and speed of the conveyers being such that the material is contained therein until it has foamed and consolidated. As shown foamed material 11 is supplied from a feed into an orifice defined by platens 10 which may be heated and endless belts 13. A film 14 covers the belts 13 and becomes integrally bonded to the foamed material. The foamed resin may be a polyurethane or a condensation product of formaldehyde and a phenol or an amine such as urea, thiourea, guanidine or melamine and is preferably cured after it has left the moulding enclosure. The facing sheet may comprise a flexible material e.g. films of polyethylene, polypropylene, polyethylene terephthalate, polystyrene, vinyl chloride, paper, plastic-coated paper or metal foil or it may comprise a rigid sheet material such as plywood, asbestos sheets, plasterboard or metal or plastics material in thick sheets. Reinforcing members e.g. wires, rods or wire mesh may be fed between the conveyers as the synthetic plastics material is introduced. If a flexible facing sheet is used or the foam has no facing sheet, the conveyers may be constrained to move from their initial downward path into a horizontal or slightly upwards path.
GB1568767A 1967-04-05 1967-04-05 Continuous foam casting process Expired GB1210513A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1568767A GB1210513A (en) 1967-04-05 1967-04-05 Continuous foam casting process
FR1567329D FR1567329A (en) 1967-04-05 1968-04-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1568767A GB1210513A (en) 1967-04-05 1967-04-05 Continuous foam casting process

Publications (1)

Publication Number Publication Date
GB1210513A true GB1210513A (en) 1970-10-28

Family

ID=10063633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1568767A Expired GB1210513A (en) 1967-04-05 1967-04-05 Continuous foam casting process

Country Status (2)

Country Link
FR (1) FR1567329A (en)
GB (1) GB1210513A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504429A (en) * 1981-02-18 1985-03-12 Hyman International Limited Method and apparatus for the continuous upward production of foamed material
WO2009095230A2 (en) * 2008-01-31 2009-08-06 Bayer Materialscience Ag Container for the discontinuous production of foamed material
WO2016005951A1 (en) * 2014-07-11 2016-01-14 Cannon S.P.A. Method and apparatus for continuous foaming of a panel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1118963B (en) * 1979-04-24 1986-03-03 Lavorazione Materie Plasttche PROCEDURE AND DEVICE FOR THE CONTINUOUS FORMING OF SYNTHETIC FOAMS
DE2950289A1 (en) * 1979-12-14 1981-06-19 Basf Ag, 6700 Ludwigshafen ELASTIC FOAM BASED ON A UREA / FORMALDEHYDE CONDENSATION PRODUCT

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504429A (en) * 1981-02-18 1985-03-12 Hyman International Limited Method and apparatus for the continuous upward production of foamed material
WO2009095230A2 (en) * 2008-01-31 2009-08-06 Bayer Materialscience Ag Container for the discontinuous production of foamed material
WO2009095230A3 (en) * 2008-01-31 2010-04-15 Bayer Materialscience Ag Container for the discontinuous production of foamed material
WO2016005951A1 (en) * 2014-07-11 2016-01-14 Cannon S.P.A. Method and apparatus for continuous foaming of a panel
US20170157815A1 (en) * 2014-07-11 2017-06-08 Cannon S.P.A. Method and apparatus for continuous foaming of a panel

Also Published As

Publication number Publication date
FR1567329A (en) 1969-05-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee