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GB1531131A - Laminating process and apparatus therefor - Google Patents

Laminating process and apparatus therefor

Info

Publication number
GB1531131A
GB1531131A GB16065/75A GB1606575A GB1531131A GB 1531131 A GB1531131 A GB 1531131A GB 16065/75 A GB16065/75 A GB 16065/75A GB 1606575 A GB1606575 A GB 1606575A GB 1531131 A GB1531131 A GB 1531131A
Authority
GB
United Kingdom
Prior art keywords
foam
gas
facing
hoods
upper facing
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
GB16065/75A
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 GB16065/75A priority Critical patent/GB1531131A/en
Priority to IT21690/76A priority patent/IT1058698B/en
Priority to DE19762615374 priority patent/DE2615374A1/en
Priority to NL7603848A priority patent/NL7603848A/en
Priority to FR7611495A priority patent/FR2307654A1/en
Priority to BE166277A priority patent/BE840894A/en
Publication of GB1531131A publication Critical patent/GB1531131A/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
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/467—Foam spreading or levelling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B32B5/20—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material foamed in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/007—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1054—Regulating the dimensions of the laminate, e.g. by adjusting the nip or platen gap
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • 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
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)

Abstract

1531131 Foam laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 11 March 1976 [18 April 1975] 16065/75 Heading B5N A laminate having a foam core sandwiched between and bonded to two outer facings is produced by applying, e.g. by spraying, to a lower facing 1, e.g. of paper, a liquid foamforming composition 11, e.g. a polyurethane, bringing an upper facing 3, e.g. of paper, into contact with the foam-forming composition at a position where substantially no expansion has occurred and maintaining the upper facing in contact with the foam throughout the zone in which expansion takes place by applying gaseous pressure to the upper surface of the upper facing and then allowing the expanded foam to cure. Gaseous pressure may be applied using air heated to 50‹-120‹C. The upper facing may be applied to the foam-forming composition using a pair of nip rolls, one below the lower facing and one above the upper facing. Alternatively, the lower roll may be replaced by a fixed bar or plate, and the upper roll replaced by a resiliently mounted bar. The expansion zone may comprise fixed platens 6 heated by electric blankets 7, a vacuum being obtained at the lower facing surface by means of a vacuum box 8, connected to a vacuum pump so that gas is drawn through holes in the surfaces of platens 6. The means for supplying gaseous pressure may consist of one or more hoods 10 extending in total over substantially the whole of the area of the laminate in the foam expansion zone and having perforated bases, the flow of gas to each hood being controlled by valves 13. Each hood is freely rotatable about axis BB and is freely movable vertically under the influence of increased gas pressure. The hoods may be weighted or counter-balanced to produce the desired loading by air cylinders 12. The gas flow rate and pressure may be chosen so that each hood floats on a gas cushion on top of the upper facing surface, the major portion of the gas exiting along the ends of the hoods. Flexible skirts, or linkages may be provided between adjacent hoods.
GB16065/75A 1975-04-18 1975-04-18 Laminating process and apparatus therefor Expired GB1531131A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB16065/75A GB1531131A (en) 1975-04-18 1975-04-18 Laminating process and apparatus therefor
IT21690/76A IT1058698B (en) 1975-04-18 1976-03-29 LAMINATION PROCESS AND RELATED APPARATUS
DE19762615374 DE2615374A1 (en) 1975-04-18 1976-04-08 METHOD AND DEVICE FOR LAMINATE PRODUCTION
NL7603848A NL7603848A (en) 1975-04-18 1976-04-12 METHOD AND EQUIPMENT FOR THE MANUFACTURE OF FOAM LAMINATES.
FR7611495A FR2307654A1 (en) 1975-04-18 1976-04-16 PROCESS AND APPARATUS FOR PRODUCING FOAM LAMINATES
BE166277A BE840894A (en) 1975-04-18 1976-04-16 STRATIFICATION PROCESS AND APPARATUS FOR IMPLEMENTING IT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16065/75A GB1531131A (en) 1975-04-18 1975-04-18 Laminating process and apparatus therefor

Publications (1)

Publication Number Publication Date
GB1531131A true GB1531131A (en) 1978-11-01

Family

ID=10070529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16065/75A Expired GB1531131A (en) 1975-04-18 1975-04-18 Laminating process and apparatus therefor

Country Status (6)

Country Link
BE (1) BE840894A (en)
DE (1) DE2615374A1 (en)
FR (1) FR2307654A1 (en)
GB (1) GB1531131A (en)
IT (1) IT1058698B (en)
NL (1) NL7603848A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032624A1 (en) * 1980-01-17 1981-07-29 Imperial Chemical Industries Plc Apparatus and method for the continuous manufacture of foam board
GB2227449A (en) * 1989-02-17 1990-08-01 Kingspan Res & Dev Ltd Manufacturing a rigid foam board

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU185699B (en) * 1982-03-24 1985-03-28 Eszakmagyar Vegyimuevek Method and apparatus for regulating the shaping of the cross section of freely foamable polimers, preferably poliuretans
CN106863544B (en) * 2017-03-16 2023-05-30 山西大学 Device for static pressure foaming of foam concrete load

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240846A (en) * 1962-08-06 1966-03-15 Allied Chem Method and apparatus for preparing polyurethane foam sandwich structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032624A1 (en) * 1980-01-17 1981-07-29 Imperial Chemical Industries Plc Apparatus and method for the continuous manufacture of foam board
GB2227449A (en) * 1989-02-17 1990-08-01 Kingspan Res & Dev Ltd Manufacturing a rigid foam board
GB2227449B (en) * 1989-02-17 1993-06-30 Kingspan Research Developments A method for manufacturing a rigid foam board

Also Published As

Publication number Publication date
NL7603848A (en) 1976-10-20
FR2307654B1 (en) 1981-05-22
BE840894A (en) 1976-10-18
IT1058698B (en) 1982-05-10
FR2307654A1 (en) 1976-11-12
DE2615374A1 (en) 1976-10-28

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Legal Events

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