GB1433757A - Plastic foams - Google Patents

Plastic foams

Info

Publication number
GB1433757A
GB1433757A GB4365973A GB4365973A GB1433757A GB 1433757 A GB1433757 A GB 1433757A GB 4365973 A GB4365973 A GB 4365973A GB 4365973 A GB4365973 A GB 4365973A GB 1433757 A GB1433757 A GB 1433757A
Authority
GB
United Kingdom
Prior art keywords
side support
trough
support surfaces
sept
arrow
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
GB4365973A
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.)
Dunlop Ltd
Original Assignee
Dunlop 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 Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB4365973A priority Critical patent/GB1433757A/en
Priority to AU73338/74A priority patent/AU478175B2/en
Publication of GB1433757A publication Critical patent/GB1433757A/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
    • 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
    • B29C44/28—Expanding the moulding material on continuous moving surfaces without restricting the upwards growth of the foam

Abstract

1433757 Casting foamed plastics DUNLOP Ltd 3 Sept 1974 [18 Sept 1973] 43659/73 Heading B5A Foamed plastic is continuously cast by depositing a foam-forming mixture at a deposit station 3 in a translatable open-topped trough consisting of a bottom support surface 7 and side support surfaces 5 and 18 and drawing the trough away in the direction indicated by the arrow A, the bottom support passing through a first zone (in which the reaction expands to form a foaming mass) in which its direction of motion is declined with respect to that of the side support surfaces and thence to a second zone in which its direction of motion of the bottom support surface is substantially parallel to that of the side support surfaces, means (not shown in Fig. 2) being provided to move at least one side support laterally (i.e. in the direction of arrow B) so as to adjust the width of the trough, the laterally movable surface comprising a moving web of flexible material which is folded around a straight edge 20 substantially parallel to the declined portion of the bottom surface.
GB4365973A 1973-09-18 1973-09-18 Plastic foams Expired GB1433757A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4365973A GB1433757A (en) 1973-09-18 1973-09-18 Plastic foams
AU73338/74A AU478175B2 (en) 1973-09-18 1974-09-16 Improvements in or relating to plastics foams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4365973A GB1433757A (en) 1973-09-18 1973-09-18 Plastic foams

Publications (1)

Publication Number Publication Date
GB1433757A true GB1433757A (en) 1976-04-28

Family

ID=10429745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4365973A Expired GB1433757A (en) 1973-09-18 1973-09-18 Plastic foams

Country Status (1)

Country Link
GB (1) GB1433757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207279A (en) * 1977-05-03 1980-06-10 Reeves Brothers, Inc. Process and apparatus for continuous production of polyurethane foam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207279A (en) * 1977-05-03 1980-06-10 Reeves Brothers, Inc. Process and apparatus for continuous production of polyurethane foam

Also Published As

Publication number Publication date
AU7333874A (en) 1976-03-18

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Legal Events

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