WO2000023265A2 - Plate of composite construction material, column of a laminated glazing construction material, and method for the manufacture of such a column - Google Patents

Plate of composite construction material, column of a laminated glazing construction material, and method for the manufacture of such a column Download PDF

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Publication number
WO2000023265A2
WO2000023265A2 PCT/NL1999/000639 NL9900639W WO0023265A2 WO 2000023265 A2 WO2000023265 A2 WO 2000023265A2 NL 9900639 W NL9900639 W NL 9900639W WO 0023265 A2 WO0023265 A2 WO 0023265A2
Authority
WO
WIPO (PCT)
Prior art keywords
glass
column
construction material
toughened
plate
Prior art date
Application number
PCT/NL1999/000639
Other languages
French (fr)
Other versions
WO2000023265A3 (en
Inventor
Fredericus Albertus Veer
Original Assignee
Technische Universiteit Delft
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 Technische Universiteit Delft filed Critical Technische Universiteit Delft
Priority to AU62341/99A priority Critical patent/AU6234199A/en
Publication of WO2000023265A2 publication Critical patent/WO2000023265A2/en
Publication of WO2000023265A3 publication Critical patent/WO2000023265A3/en

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
    • B32B17/10009—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 number, the constitution or treatment of glass sheets
    • B32B17/10064—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 number, the constitution or treatment of glass sheets comprising at least two glass sheets, only one of which being an outer 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
    • 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
    • B32B17/10009—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 number, the constitution or treatment of glass sheets
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10091—Properties of the bulk of a glass sheet thermally hardened
    • 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
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10908—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin in liquid form
    • B32B17/10917—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin in liquid form between two pre-positioned glass layers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials

Definitions

  • the invention relates to a plate of composite material comprising elements of glass and a thermoplastic polymer adhering to the glass .
  • Such a plate is disclosed in the Japanese patent application JP-A-92247650.
  • the material disclosed in this Japanese patent application relates to a transparent laminate that can be used as safety glass .
  • the known laminate is, however, not usable for construction purposes.
  • US-A-3, 935, 681 discloses a panel for constructional uses, which is comprised of a frame in which fire resistant, transparent sheets that are laminated from chemically tempered glass elements between which a plastic sheet is incorporated to provide the bond between the glass elements.
  • the thus known plates in this publication are not suitable as such for constructional uses, but only become so after being incorporated in a frame intended for this purpose .
  • the construction material according to the invention enhances the architectural value of buildings constructed with this material. Also, the material according to the invention is more suitable for applications where safety is a requisite, such as in automobiles or high-speed vehicles.
  • the composite construction material is characterized in that the glass is toughened and the plate is assembled from adjacent and at least partly overlapping and cemented together elements which are each assembled of at least the toughened glass, and the thermoplastic polymer adhered to the glass . Assembly of individual elements makes it possible to manufac- ture relatively large plates which can still be used for construction purposes .
  • the material according to the invention is constructionally safe and retains the ability to absorb constructional forces after being overloaded or damaged.
  • US-A-4, 774, 143 discloses a transparent laminated material, wherein the material comprises a continuous inner layer of thermoplastic material, and an outer layer of individual glass segments, wherein the spaces between the adjacent segments are provided with a cement.
  • the laminate according to US-A-4 , 77 , 143 can be used as safety material, but does not have overlapping elements and cannot be used as construction material .
  • the glass be toughened to at least double the strength of non-toughened glass and to at most 50% of the maximum strength of toughened glass.
  • the plate according to the invention provides the best results in the embodiment in which the elements are cemented together with a transparent cement, and the thickness of the cement layer is less than 25 ⁇ m.
  • the thickness of the cement layer to be applied depends on the size of the cemented elements. When relatively small elements are used, the cement layer should be thinner, for example, in the range of 4-8 ⁇ m.
  • the invention also relates to a column of laminated glass construction material .
  • a column of laminated glass construction material is characterized in that the same is provided with a foot cemented to the glass construction material, and that the construction material is resting on, in relation to the construction material, soft material, having a yield point in the range of 5-30 MPa.
  • the soft material used is preferably lead. This has the advantage that under loaded conditions, no stress will be exerted on the base of the column; so that when the column comes under a load, irregularities in the structure of the construction material will not result in local concentrations of stress.
  • the invention is further embodied in a method for the manufacture of such a column.
  • the column is formed by fitting two glass tubes into each other, leaving an annular space between the outer diameter of the inner tube and the inner diameter of the outer tube, which annular space is filled with a monomer, which monomer is subsequently polymerized under the influence of light from a lamp which is moved from the foot of the column upward. In this manner the influence of shrinkage is effectively overcome.
  • Glass elements are chemically toughened to increase the strength which is at least double the strength of non- toughened glass, and at most 50% of the maximum strength.
  • This toughened glass is subsequently cemented together with a ductile polymer, more particularly polycarbonate.
  • the cement used is a transparent commercial quality cement from the German firm DELO, it is a blue-light curing photocatalytic cement on acrylate basis, applied in a thickness of approximately 4-8 ⁇ m.
  • Other solvent-free and transparent cements that cure in a controlled manner may also be used. In this manner a composite construction material is obtained having a strength and E-modulus comparable with those of toughened glass, while the toughness is comparable with that of metal.
  • Fig. 1 shows a column 1 of laminated glass construction material, provided with a foot 2 cemented to the glass construction material of the column 1.
  • Reference number 3 indicates the cement layer.
  • the construction material of the column 1 is resting on, in relation to the construction material, soft material 4, namely lead.
  • Fig. 2 shows such a column of glass construction material, wherein the foot 2 is composed of a top 2' of the foot and a base 2" of the foot. Incorporated between the top and the base of the foot is a ball hinge 5, providing the column 1 with an omnidirectional hinge to avoid bending moments .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

A plate of composite material comprising elements of glass and a thermoplastic polymer adhering to the glass. The glass is toughened and the plate is assembled from adjacent and at least partly overlapping and cemented together elements which are each assembled of at least the toughened glass, and the thermoplastic polymer adhered to the glass. The glass is toughened to at least double the strength of non-toughened glass and to at most 50 % of the maximum strength of toughened glass.

Description

Plate of composite construction material, column of a laminated glazing construction material, and method for the manufacture of such a column
The invention relates to a plate of composite material comprising elements of glass and a thermoplastic polymer adhering to the glass .
Such a plate is disclosed in the Japanese patent application JP-A-92247650. The material disclosed in this Japanese patent application relates to a transparent laminate that can be used as safety glass . The known laminate is, however, not usable for construction purposes.
US-A-3, 935, 681 discloses a panel for constructional uses, which is comprised of a frame in which fire resistant, transparent sheets that are laminated from chemically tempered glass elements between which a plastic sheet is incorporated to provide the bond between the glass elements. The thus known plates in this publication are not suitable as such for constructional uses, but only become so after being incorporated in a frame intended for this purpose .
It is the object of the invention to provide a plate of the kind mentioned in the preamble, which can be utilized as construction material without requiring the use of metal or other kinds of construction materials for the sake of strength or constructional safety. The construction material according to the invention enhances the architectural value of buildings constructed with this material. Also, the material according to the invention is more suitable for applications where safety is a requisite, such as in automobiles or high-speed vehicles.
According to the invention, the composite construction material is characterized in that the glass is toughened and the plate is assembled from adjacent and at least partly overlapping and cemented together elements which are each assembled of at least the toughened glass, and the thermoplastic polymer adhered to the glass . Assembly of individual elements makes it possible to manufac- ture relatively large plates which can still be used for construction purposes . The material according to the invention is constructionally safe and retains the ability to absorb constructional forces after being overloaded or damaged.
It is noted, that US-A-4, 774, 143 discloses a transparent laminated material, wherein the material comprises a continuous inner layer of thermoplastic material, and an outer layer of individual glass segments, wherein the spaces between the adjacent segments are provided with a cement. The laminate according to US-A-4 , 77 , 143 can be used as safety material, but does not have overlapping elements and cannot be used as construction material .
In order to obtain optimal construction properties, it is desirable that the glass be toughened to at least double the strength of non-toughened glass and to at most 50% of the maximum strength of toughened glass.
Architecturally the plate according to the invention provides the best results in the embodiment in which the elements are cemented together with a transparent cement, and the thickness of the cement layer is less than 25 μm. The thickness of the cement layer to be applied depends on the size of the cemented elements. When relatively small elements are used, the cement layer should be thinner, for example, in the range of 4-8 μm.
Furthermore, it is desirable that the glass be as thin as possible, preferably having a thickness of maximally 5% of an element's smallest length or breadth measurement . The invention also relates to a column of laminated glass construction material . According to the invention such a column is characterized in that the same is provided with a foot cemented to the glass construction material, and that the construction material is resting on, in relation to the construction material, soft material, having a yield point in the range of 5-30 MPa. The soft material used is preferably lead. This has the advantage that under loaded conditions, no stress will be exerted on the base of the column; so that when the column comes under a load, irregularities in the structure of the construction material will not result in local concentrations of stress.
It is further desirable to incorporate a ball hinge in the foot of the column. This avoids bending moments when the column is loaded, as a result of which the load- bearing capacity of the column is increased.
The invention is further embodied in a method for the manufacture of such a column. In the method according to the invention the column is formed by fitting two glass tubes into each other, leaving an annular space between the outer diameter of the inner tube and the inner diameter of the outer tube, which annular space is filled with a monomer, which monomer is subsequently polymerized under the influence of light from a lamp which is moved from the foot of the column upward. In this manner the influence of shrinkage is effectively overcome.
Especially when one lamp is used, it is desirable that simultaneously with the upward movement of the lamp, the column is rotated about its longitudinal axis. EXAMPLE
Glass elements are chemically toughened to increase the strength which is at least double the strength of non- toughened glass, and at most 50% of the maximum strength. This toughened glass is subsequently cemented together with a ductile polymer, more particularly polycarbonate. The cement used is a transparent commercial quality cement from the German firm DELO, it is a blue-light curing photocatalytic cement on acrylate basis, applied in a thickness of approximately 4-8 μm. Other solvent-free and transparent cements that cure in a controlled manner, may also be used. In this manner a composite construction material is obtained having a strength and E-modulus comparable with those of toughened glass, while the toughness is comparable with that of metal. These elements are then assembled into a large plate by placing the elements next to and over each other and by cementing them together in the manner described above. In this way a composite construction material is provided with a large surface measure, while to a large degree retaining its character as aggregate, also when the construction plate is under stress. When loaded, one single element may succumb to stress, while the adjacent and overlapping elements stay undamaged.
The invention will now be further elucidated with reference to the drawings, which schematically show in Fig. 1 the column according to the invention in a first embodiment; and in Fig. 2 the column according to the invention in a second embodiment .
Fig. 1 shows a column 1 of laminated glass construction material, provided with a foot 2 cemented to the glass construction material of the column 1. Reference number 3 indicates the cement layer. The construction material of the column 1 is resting on, in relation to the construction material, soft material 4, namely lead.
Fig. 2 shows such a column of glass construction material, wherein the foot 2 is composed of a top 2' of the foot and a base 2" of the foot. Incorporated between the top and the base of the foot is a ball hinge 5, providing the column 1 with an omnidirectional hinge to avoid bending moments .
The invention is not limited to the exemplary embo- diments described above. Within the scope of the invention as defined by the appended claims, these exemplary embodiments may be varied without departing from the concept of the invention.

Claims

1. A plate of composite material comprising elements of glass and a thermoplastic polymer adhering to the glass, characterized in that the glass is toughened and the plate is assembled from adjacent and at least partly overlapping and cemented together elements which are each assembled of at least the toughened glass, and the thermoplastic polymer adhered to the glass.
2. A plate according to claim 1, characterized in that the glass is toughened to at least double the strength of non-toughened glass and to at most 50% of the maximum strength of toughened glass .
3. A plate according to claim 1 or 2 , characterized in that the elements are cemented together with a transparent cement, and the thickness of the cement layer is less than 25 μm.
4. A plate according to any one of the claims 1-3, characterized in that the glass has a thickness of maximally 5% of an element's smallest length or breadth measurement .
5. A column of laminated glass construction material, characterized in that the same is provided with a foot cemented to the glass construction material, and that the construction material is resting on, in relation to the construction material, soft material, having a yield point in the range of 5-30 MPa.
6. A column according to claim 5, characterized in that the soft material is lead.
7. A column according to claim 5 or 6, characterized in that the foot of the column incorporates a ball hinge .
8. A method for the manufacture of a column according to claim 5, 6 or 7 , characterized in that the same is formed by fitting two glass tubes into each other, leaving an annular space between the outer diameter of the inner tube and the inner diameter of the outer tube, which annular space is filled with a monomer, which monomer is subsequently polymerized under the influence of light from a lamp which is moved from the foot of the column upward.
9. A method according to claim 8, characterized in that simultaneously with the upward movement of the lamp, the column is rotated about its longitudinal axis .
PCT/NL1999/000639 1998-10-16 1999-10-15 Plate of composite construction material, column of a laminated glazing construction material, and method for the manufacture of such a column WO2000023265A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62341/99A AU6234199A (en) 1998-10-16 1999-10-15 Plate of composite construction material, column of a laminated glazing construction material, and method for the manufacture of such a column

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1010329A NL1010329C2 (en) 1998-10-16 1998-10-16 Composite construction material sheet, laminated glass construction material column, and method of manufacturing such a column.
NL1010329 1998-10-16

Publications (2)

Publication Number Publication Date
WO2000023265A2 true WO2000023265A2 (en) 2000-04-27
WO2000023265A3 WO2000023265A3 (en) 2000-11-16

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AU (1) AU6234199A (en)
NL (1) NL1010329C2 (en)
WO (1) WO2000023265A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003055670A1 (en) * 2002-01-04 2003-07-10 Schott Glas Composite glass tube
WO2004035958A1 (en) * 2002-10-17 2004-04-29 Schott Ag Terminal part for pipes made of brittle material

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040216A (en) * 1975-05-19 1977-08-09 A & T Development Corporation Pillars, walls and buildings
GB2015427A (en) * 1978-02-09 1979-09-12 Pilkington Brothers Ltd Production of Laminates
US4201828A (en) * 1975-04-16 1980-05-06 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Impact resistant safety glass panel
JPS56100156A (en) * 1980-01-07 1981-08-11 Matsushita Electric Ind Co Ltd Manufacture of glass double tube
DE3643765A1 (en) * 1985-12-21 1987-06-25 Hahn Glasbau Process for the production of a plastic layer between two glass sheets, and an apparatus for carrying out the process
FR2678971A1 (en) * 1991-07-08 1993-01-15 Andre Giraud TRANSPARENT COMPOSITE STRUCTURAL ELEMENTS AND METHODS OF MAKING SAME.
DE4236233A1 (en) * 1992-10-27 1994-04-28 Bayerische Motoren Werke Ag Vehicle armoured glass - has glass blocks with glass panes flanking polycarbonate plates for impact and splinter resistance with light weight
EP0750079A1 (en) * 1995-06-22 1996-12-27 Saint-Gobain Vitrage Method of manufacturing a composite structural element and article thus obtained
EP0778126A1 (en) * 1995-12-06 1997-06-11 Saint-Gobain Vitrage A support structure in glass
DE29818292U1 (en) * 1998-10-14 1999-02-18 Kara, Jürgen, 96279 Weidhausen I-beam

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201828A (en) * 1975-04-16 1980-05-06 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Impact resistant safety glass panel
US4040216A (en) * 1975-05-19 1977-08-09 A & T Development Corporation Pillars, walls and buildings
GB2015427A (en) * 1978-02-09 1979-09-12 Pilkington Brothers Ltd Production of Laminates
JPS56100156A (en) * 1980-01-07 1981-08-11 Matsushita Electric Ind Co Ltd Manufacture of glass double tube
DE3643765A1 (en) * 1985-12-21 1987-06-25 Hahn Glasbau Process for the production of a plastic layer between two glass sheets, and an apparatus for carrying out the process
FR2678971A1 (en) * 1991-07-08 1993-01-15 Andre Giraud TRANSPARENT COMPOSITE STRUCTURAL ELEMENTS AND METHODS OF MAKING SAME.
DE4236233A1 (en) * 1992-10-27 1994-04-28 Bayerische Motoren Werke Ag Vehicle armoured glass - has glass blocks with glass panes flanking polycarbonate plates for impact and splinter resistance with light weight
EP0750079A1 (en) * 1995-06-22 1996-12-27 Saint-Gobain Vitrage Method of manufacturing a composite structural element and article thus obtained
EP0778126A1 (en) * 1995-12-06 1997-06-11 Saint-Gobain Vitrage A support structure in glass
DE29818292U1 (en) * 1998-10-14 1999-02-18 Kara, Jürgen, 96279 Weidhausen I-beam

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 178 (C-078), 14 November 1981 (1981-11-14) & JP 56 100156 A (MATSUSHITA ELECTRIC IND CO LTD), 11 August 1981 (1981-08-11) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003055670A1 (en) * 2002-01-04 2003-07-10 Schott Glas Composite glass tube
WO2004035958A1 (en) * 2002-10-17 2004-04-29 Schott Ag Terminal part for pipes made of brittle material
DE10248325A1 (en) * 2002-10-17 2004-05-13 Schott Glas End component for pipes made of brittle material

Also Published As

Publication number Publication date
NL1010329C2 (en) 2000-04-18
WO2000023265A3 (en) 2000-11-16
AU6234199A (en) 2000-05-08

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