GB1368785A - Process and apparatus for forming laminates - Google Patents

Process and apparatus for forming laminates

Info

Publication number
GB1368785A
GB1368785A GB5707971A GB5707971A GB1368785A GB 1368785 A GB1368785 A GB 1368785A GB 5707971 A GB5707971 A GB 5707971A GB 5707971 A GB5707971 A GB 5707971A GB 1368785 A GB1368785 A GB 1368785A
Authority
GB
United Kingdom
Prior art keywords
assembly
edges
pressure
chamber
atmospheric
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
GB5707971A
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.)
AGC Glass Europe SA
Original Assignee
Glaverbel Belgium SA
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 Glaverbel Belgium SA filed Critical Glaverbel Belgium SA
Priority to IT6759672A priority Critical patent/IT950657B/en
Priority to FR7206758A priority patent/FR2128388A1/en
Priority to NL7202579.A priority patent/NL166642C/en
Priority to BE779912A priority patent/BE779912A/en
Priority to CA135,759A priority patent/CA965341A/en
Priority to DE2209642A priority patent/DE2209642C3/en
Priority to JP2100272A priority patent/JPS558956B1/ja
Priority to AU39482/72A priority patent/AU475564B2/en
Priority to NL7211580A priority patent/NL172735C/en
Priority to US00283792A priority patent/US3852136A/en
Priority to DE19722241754 priority patent/DE2241754C2/en
Publication of GB1368785A publication Critical patent/GB1368785A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10825—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts
    • B32B17/10834—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10825—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts
    • B32B17/10834—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid
    • B32B17/10844—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid using a membrane between the layered product and the fluid
    • B32B17/10853—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using a fluid using a membrane between the layered product and the fluid the membrane being bag-shaped
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10871—Making laminated safety glass or glazing; Apparatus therefor by pressing in combination with particular heat treatment
    • 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
    • B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/60—In a particular environment
    • B32B2309/68—Vacuum

Abstract

1368785 Laminating process and apparatus GLAVERBEL 8 Dec 1971 [3 March 1971] 57079/71 Heading B5N A process for forming a laminate by heating an assembly comprising at least two sheets 18, 19 of glass or of vitrocrystalline material formed by subjecting glass to a thermal treatment to induce the formation of one or more crystalline phases therein and an intervening thermoplastic layer 20 between the or each adjacent pair of sheets to soften or melt the thermoplastic layer(s) and subjecting the assembly to heat and pressure conditions to firmly bond the sheets by means of the thermoplastic layer(s) is characterized in that there is assembly means 17 which envelopes at least the edges thereof, to define with such edges, a space within which subatmospheric pressure can be created for subjecting the inter sheet spaces to suction at said edges, and that in a preliminary treatment stage before the assembly is subjected to said firm bonding conditions, the assembly is exposed to sub-atmospheric environmental pressure acting upon at least one of the main external faces of the assembly while the assembly is exposed to heat in a treatment chamber and the inter-sheet spaces are subjected to said suction produced by sub-atmospheric pressure within the spaces around the edges of the assembly. An apparatus for use in forming a laminate, comprises at least two chambers 2, 3, 4 into which an assembly of sheets 18, 19 for forming a laminate can be introduced in succession, at least one of the chambers 2 being associated with means, e.g. vacuum pump 14 for producing sub-atmospheric environmental pressure therein, means, e.g. roller conveyer 9 for conveying an assembly from one chamber to another, sealing means, e.g. endless flexible sealing tube 17 which is open at its inner periphery for enclosing the edges of an assembly to define a space around the edges and associated with means, e.g. vacuum pump 15 for producing a sub-atmospheric pressure in the space around the edges for subjecting the inter-sheet spaces to suction while the assembly is in a chamber at sub-atmospheric environmental pressure, and means for heating an assembly to a predetermined schedule. In the apparatus, the chambers 2, 3, 4 are formed by division of the enclosure 1 by partitions 5 and 6 respectively controlled by automatic mechanisms 7 and 8, the compartments 2 and 3 being provided with heating elements 10,11, 12 and 13. In operation of the apparatus, the sealing tube is fitted around the margin of the assembly which is placed on carriage 21 and conveyed into chamber 2 which is maintained by heating elements 10 and 11 at about 100‹C., the vacuum pump 14 being operated to reduce the environmental pressure to not more than 400 mm. of mercury, the pump 15 reducing the pressure within the tube 17 and 30 mm. of mercury, the assembly being progressively heated to 80‹ C. at which temperature the pre-bonding stage is commenced by increasing the environmental pressure within chamber 2 to atmospheric. When the assembly reaches a temperature of 100‹ C., the conduit 16 is disconnected from the tube 17 and the assembly subjected to atmospheric pressure, the partition 5 is then opened and the carriage and assembly moved into compartment 3 where the temperature of the assembly is raised by heating elements 12 and 13 to 140‹ C., the partition 6 then being opened and the assembly moved to chamber 4 where it is progressively cooled. Figure 3 shows an alternative means for forming the inter-sheet spaces, the means comprising an envelope 20 which encloses the whole assembly and is connected by line 26 to vacuum pump 27. The thermoplastic layer may be polyvinyl butyral, polyvinyl chloride, a polyolefine, an acrylic resin or a silane.
GB5707971A 1971-03-03 1971-12-08 Process and apparatus for forming laminates Expired GB1368785A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
IT6759672A IT950657B (en) 1971-03-03 1972-02-25 PROCEDURE AND DEVICE FOR MANUFACTURING A MULTIPLE SHEET LAMINATE
FR7206758A FR2128388A1 (en) 1971-03-03 1972-02-28 Preheating of laminated glass assembly - with evacuation of region between sheets
NL7202579.A NL166642C (en) 1971-03-03 1972-02-28 METHOD AND APPARATUS FOR MAKING LAMINATES
BE779912A BE779912A (en) 1971-12-08 1972-02-28 METHOD AND DEVICE FOR THE MANUFACTURE OF A LAMINATED WINDOW.
CA135,759A CA965341A (en) 1971-03-03 1972-02-28 Process and apparatus for forming laminates
DE2209642A DE2209642C3 (en) 1971-03-03 1972-02-29 Method and apparatus for manufacturing a composite pane using negative pressure on the entire assembly and especially on the edges
JP2100272A JPS558956B1 (en) 1971-03-03 1972-02-29
AU39482/72A AU475564B2 (en) 1971-03-03 1972-03-01 Process and apparatus for forming laminates
NL7211580A NL172735C (en) 1971-03-03 1972-08-24 IMPROVEMENT OF A METHOD AND DEVICE FOR FORMING A LAMINATE.
US00283792A US3852136A (en) 1971-12-08 1972-08-25 Production of laminated glazing
DE19722241754 DE2241754C2 (en) 1971-03-03 1972-08-25 Method and apparatus for manufacturing a composite pane using negative pressure on the entire assembly and especially on the edges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU62707 1971-03-03

Publications (1)

Publication Number Publication Date
GB1368785A true GB1368785A (en) 1974-10-02

Family

ID=19726642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5707971A Expired GB1368785A (en) 1971-03-03 1971-12-08 Process and apparatus for forming laminates

Country Status (3)

Country Link
GB (1) GB1368785A (en)
LU (1) LU62707A1 (en)
ZA (1) ZA721333B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337997A (en) * 1979-02-09 1982-07-06 Bfg Glassgroup Energy reflector and method of making
DE3315330A1 (en) * 1982-04-30 1983-11-03 Glaverbel, 1170 Bruxelles METHOD FOR PRODUCING A CURVED GLASS PLASTIC LAMINATE
US4444825A (en) * 1981-08-28 1984-04-24 Glaverbel Fire-screening panel
US5468346A (en) * 1993-03-27 1995-11-21 Pilkington Aerospace Limited Glass treatment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337997A (en) * 1979-02-09 1982-07-06 Bfg Glassgroup Energy reflector and method of making
US4444825A (en) * 1981-08-28 1984-04-24 Glaverbel Fire-screening panel
DE3315330A1 (en) * 1982-04-30 1983-11-03 Glaverbel, 1170 Bruxelles METHOD FOR PRODUCING A CURVED GLASS PLASTIC LAMINATE
US5468346A (en) * 1993-03-27 1995-11-21 Pilkington Aerospace Limited Glass treatment

Also Published As

Publication number Publication date
LU62707A1 (en) 1972-12-07
ZA721333B (en) 1972-11-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee