WO2014126252A1 - Verre feuilleté et structure de fixation sur laquelle il est fixé - Google Patents

Verre feuilleté et structure de fixation sur laquelle il est fixé Download PDF

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Publication number
WO2014126252A1
WO2014126252A1 PCT/JP2014/053699 JP2014053699W WO2014126252A1 WO 2014126252 A1 WO2014126252 A1 WO 2014126252A1 JP 2014053699 W JP2014053699 W JP 2014053699W WO 2014126252 A1 WO2014126252 A1 WO 2014126252A1
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Prior art keywords
glass plate
glass
thickness
laminated glass
laminated
Prior art date
Application number
PCT/JP2014/053699
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English (en)
Japanese (ja)
Inventor
神吉　哲
貴弘 浅井
Original Assignee
日本板硝子株式会社
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Publication date
Application filed by 日本板硝子株式会社 filed Critical 日本板硝子株式会社
Priority to JP2014554649A priority Critical patent/JP5706054B2/ja
Publication of WO2014126252A1 publication Critical patent/WO2014126252A1/fr

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    • 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
    • B32B17/10761—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 containing vinyl acetal
    • 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
    • B32B17/10036—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 two outer glass sheets
    • 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
    • B32B17/10559—Shape of the cross-section
    • B32B17/10568—Shape of the cross-section varying in thickness

Definitions

  • the present invention relates to a laminated glass used for a windshield of an automobile and a mounting structure to which the glass is mounted.
  • Patent Document 1 describes that the sound insulation performance is affected by the surface density. That is, in order to improve the sound insulation performance, it is necessary to increase the thickness of the glass. On the other hand, from the viewpoint of improving the fuel efficiency of automobiles, the glass is required to be lighter. For this reason, it is desirable that the glass has a smaller thickness. Therefore, conventionally, in order to satisfy these two contradictory performances, a laminated glass having a sum of the thicknesses of the glass on the vehicle outside and the vehicle inside of about 4 mm is used.
  • This invention was made in order to solve the said problem, and it aims at providing the laminated structure which can maintain a sound-insulation property by further weight reduction, and the attachment structure to which this was attached.
  • the laminated glass according to the present invention includes a first glass plate, a second glass disposed opposite to the first glass plate, and an intermediate film sandwiched between the first glass and the second glass.
  • the sum of the thickness of the first glass plate and the thickness of the second glass plate is 2.4 to 3.8 mm, and the Young's modulus of the intermediate film is 100 to 1000 MPa at a frequency of 100 Hz and a temperature of 20 ° C. .
  • the sum of the thickness of the first glass plate and the thickness of the second glass plate can be 2.6 to 3.4 mm.
  • the thickness of the first glass plate can be made larger than the thickness of the second glass plate.
  • the thickness of the first glass plate can be 1.8 to 5.0 mm.
  • the thickness of the second glass plate can be 0.6 to 5.0 mm.
  • the tan ⁇ of the intermediate film can be 0.1 to 3.0 at a frequency of 100 Hz and a temperature of 20 ° C.
  • the thickness of the interlayer film can be set to 0.5 to 5.0 mm.
  • the laminated glass attachment structure according to the present invention includes any one of the laminated glasses described above and an attachment portion for attaching the laminated glass to a vertical attachment angle of 45 degrees or less.
  • an attachment structure is, for example, an automobile or a building, and the attachment portion is a frame or the like for attaching laminated glass.
  • a laminated glass can be attached with a well-known method with respect to an attaching part.
  • FIG. 1 It is sectional drawing which shows one Embodiment of the laminated glass which concerns on this invention. It is the front view (a) and sectional view (b) which show the amount of doubles of a curved laminated glass. It is a graph which shows the relationship between the general frequency and sound transmission loss of a curved glass plate and a planar glass plate. It is a schematic plan view which shows the measurement position of the thickness of a laminated glass. It is a graph which shows the relationship between the frequency and sound transmission loss in the conventional laminated glass. It is a graph which shows the relationship between the frequency and sound transmission loss in the conventional laminated glass. It is a graph which shows the result of the simulation regarding a Young's modulus and the total thickness of a glass plate.
  • FIG. 1 is a cross-sectional view of a laminated glass according to the present embodiment.
  • the laminated glass according to this embodiment includes an outer glass plate (first glass plate) 1, an inner glass plate (second glass plate) 2, and an intermediate film 3 sandwiched between these glass plates.
  • the outer glass 1 is a glass plate disposed on the side susceptible to disturbance
  • the inner glass 2 is a glass plate disposed on the opposite side. Therefore, for example, when this laminated glass is used as a glass of an automobile, the glass plate on the outside of the vehicle becomes an outer glass plate, and when used as a building material, the side facing outward becomes an outer glass plate. However, depending on the disturbance that can be received, the arrangement may be opposite.
  • each member will be described.
  • Outer glass plate and inner glass plate As the outer glass plate 1 and the inner glass plate 2, known glass plates can be used, and they can be formed of heat ray absorbing glass, general clear glass, green glass, or UV green glass. However, when this laminated glass is used for an automobile window, it is necessary to realize a visible light transmittance in accordance with the safety standard of the country where the automobile is used. For example, the required solar radiation absorption rate can be secured by the outer glass plate 1, and the visible light transmittance can be adjusted by the inner glass plate 2 so as to satisfy the safety standard. Below, an example of a composition of clear glass and an example of a composition of heat ray absorption glass are shown.
  • the composition of the heat-absorbing glass for example, based on the composition of the clear glass, the proportion of the total iron oxide in terms of Fe 2 O 3 (T-Fe 2 O 3) and 0.4 to 1.3 wt%, CeO
  • the ratio of 2 is 0 to 2% by mass
  • the ratio of TiO 2 is 0 to 0.5% by mass
  • the glass skeleton components (mainly SiO 2 and Al 2 O 3 ) are T-Fe 2 O 3 , CeO.
  • the composition can be reduced by an increase of 2 and TiO 2 .
  • the total thickness of the outer glass plate and the inner glass plate that achieves both weight reduction and sound insulation is about 4.0 mm.
  • the purpose is to reduce the weight.
  • the total thickness of the outer glass plate 1 and the inner glass plate 2 is preferably 2.4 to 3.8 mm, more preferably 2.6 to 3.4 mm, and 2.7 to 3.2 mm. It is particularly preferred that
  • the thickness of each glass plate is not particularly limited, For example, the thickness of the outer glass plate 1 and the inner glass plate 2 can be determined as follows.
  • the outer glass plate 1 mainly needs durability and impact resistance against external obstacles. For example, when this laminated glass is used as a windshield of an automobile, the outer glass plate 1 has impact resistance performance against flying objects such as pebbles. is necessary.
  • the thickness of the outer glass plate 1 is preferably 1.8 mm or more, 1.9 mm or more, 2.0 mm or more, 2.1 mm or more, or 2.2 mm or more.
  • the upper limit of the thickness of the outer glass is preferably 5.0 mm or less, 4.0 mm or less, 3.1 mm or less, 2.5 mm or less, 2.4 mm or less. Among them, it is preferably larger than 2.1 mm and 2.5 mm or less, particularly preferably 2.2 mm or more and 2.4 mm or less. Which thickness is adopted can be determined according to the application of the glass.
  • the inner glass plate 2 is preferably made thinner than the outer glass plate 1 in order to reduce the weight of the laminated glass.
  • the thickness of the inner glass plate 2 is preferably in the order of 0.6 mm or more, 0.8 mm or more, 1.0 mm or more, and 1.3 mm or more.
  • the upper limit of the thickness of the inner glass plate 2 is 5.0 mm or less, 4.0 mm or less, 3.1 mm or less, 2.5 m or less, 2.0 mm or less, 1.6 mm or less, 1.4 mm or less, 1.3 mm.
  • Which thickness is used for the inner glass plate 2 can also be determined according to the purpose of the glass.
  • the shape of the outer glass plate 1 and the inner glass plate 2 according to the present embodiment may be either a planar shape or a curved shape.
  • the sound transmission loss (STL) of the glass described later is lower in the curved shape, the curved glass particularly requires an acoustic measure.
  • the reason why the STL value is lower in the curved shape than in the planar shape is that the curved shape is more influenced by resonance.
  • the double amount is an amount indicating the bending of the glass plate. For example, when a straight line L connecting the center of the upper side and the center of the lower side is set as shown in FIG. The largest distance between the two is defined as a double amount D.
  • FIG. 3 is a graph showing a relationship between a general frequency and sound transmission loss of a curved glass plate and a planar glass plate.
  • the curved glass plate has no significant difference in sound transmission loss in the range of 30 to 38 mm in the amount of doubling, but compared with the planar glass plate, it transmits sound in a frequency band of 4000 Hz or less. It can be seen that the loss is decreasing. Therefore, when producing a curved glass plate, the amount of double is better, but for example, when the amount of double exceeds 30 mm, the Young's modulus of the core layer of the intermediate film is set to 18 MPa (frequency) as will be described later. 100 Hz, temperature 20 ° C.) or less.
  • a method for measuring the thickness when the glass plate is curved will be described.
  • the measuring instrument is not particularly limited, and for example, a thickness gauge such as SM-112 manufactured by Teclock Co., Ltd. can be used.
  • SM-112 manufactured by Teclock Co., Ltd.
  • Teclock Co., Ltd. Teclock Co., Ltd.
  • it is arranged so that the curved surface of the glass plate is placed on a flat surface, and the end of the glass plate is sandwiched by the thickness gauge and measured. Even when the glass plate is flat, it can be measured in the same manner as when the glass plate is curved.
  • the frequency of sounds that are easy for humans to hear is generally said to be 2000 to 5000 Hz.
  • laminated glass having a thickness of about 4.0 mm is also known to have a reduced sound insulation performance in the frequency range of 2000 to 5000 Hz due to the coincidence effect.
  • FIG. 5 is a graph showing the result of simulating the relationship between the frequency and sound transmission loss (SLT) in laminated glass with the outer glass plate and the inner glass plate having a thickness of 2.0 mm. According to this graph, it can be seen that the sound transmission loss is reduced in the frequency range of 2000 to 5000 Hz that is easy for humans to hear.
  • SLT frequency and sound transmission loss
  • FIG. 6 is a graph showing the relationship between the frequency and sound transmission loss (STL) of a laminated glass using an interlayer film having a relatively low Young's modulus.
  • STL sound transmission loss
  • FIG. 7 shows a third laminated glass STL in which the outer glass plate and the inner glass plate are both 2 mm and the outer glass plate are 2 mm when the intermediate film 3 having a Young's modulus of 100 MPa is used at a frequency of 100 Hz and a temperature of 20 ° C.
  • the inner glass plate is a graph showing the STL of the fourth laminated glass having a thickness of 1.0 mm. According to the figure, although the thickness of the inner glass plate 2 is reduced to 1.0 mm as in the case of the fourth laminated glass, the coincidence frequency shifts to the high frequency side as compared with the third laminated glass having a large total thickness. It has been found that in the above frequency region, sound transmission loss hardly decreases, but rather an improved region is generated, and sound insulation performance is improved.
  • the total thickness of the laminated glass and the thicknesses of the glass plates 1 and 2 are specified as described above, and the intermediate film 3 can be selected based on the Young's modulus. Specifically, it is preferably 100 to 1000 MPa, more preferably 200 to 1000 MPa at a frequency of 100 Hz and a temperature of 20 degrees. Furthermore, 400 to 1000 MPa is preferable. As will be described later, if the Young's modulus is too small, the coincidence frequency does not increase in the above-described frequency region. On the other hand, if the Young's modulus is too large, the impact resistance performance decreases, which is not preferable.
  • frequency dispersion measurement can be performed with a strain amount of 0.05% using a solid viscoelasticity measuring device DMA-50 manufactured by Metravib.
  • the Young's modulus is a value measured by the above method. However, when the Young's modulus is 200 MPa or less, an actual measurement value is used. When the Young's modulus is greater than 200 MPa, a calculated value based on the actual measurement value is used. The calculated value is based on a master curve calculated by using the WLF method from the actually measured value.
  • the tan ⁇ of the intermediate film is preferably 0.1 to 3.0, more preferably 0.1 to 1.0, and more preferably 0.2 to 0.4 at a frequency of 100 Hz and a temperature of 20 ° C. It is particularly preferred that When tan ⁇ is in the above range, sound is easily absorbed, and sound insulation performance is improved. However, if tan ⁇ becomes too large, the intermediate film 3 becomes too soft and difficult to handle. On the other hand, if the thickness is too small, the intermediate film 3 becomes too hard, and the impact resistance performance is deteriorated.
  • the material constituting the intermediate film 3 is not particularly limited, but it is necessary that the material has at least a Young's modulus in the above range.
  • it can be composed of polyvinyl butyral resin (PVB).
  • PVB polyvinyl butyral resin
  • Polyvinyl butyral resin is preferable because it is excellent in adhesiveness and penetration resistance with each glass plate.
  • the hardness of the polyvinyl acetal resin is controlled by (a) the degree of polymerization of the starting polyvinyl alcohol, (b) the degree of acetalization, (c) the type of plasticizer, (d) the addition ratio of the plasticizer, etc. Can do. Therefore, a hard polyvinyl butyral resin can be produced by appropriately adjusting at least one selected from these conditions. Furthermore, the hardness of the polyvinyl acetal resin can also be controlled by the type of aldehyde used for acetalization, coacetalization with a plurality of aldehydes or pure acetalization with a single aldehyde.
  • the polyvinyl acetal resin obtained by using an aldehyde having a large number of carbon atoms tends to be softer.
  • predetermined Young's modulus it is not limited to the said resin etc., Other additives can also be mix
  • the intermediate film 3 is preferably, for example, 0.5 to 5.0 mm, and more preferably 0.6 to 3.0 mm.
  • the intermediate film 3 can be formed of a single layer, but can also be configured by stacking layers made of the same material. When layers of the same material are stacked, a film may be sandwiched between the layers. In this case, the thickness of the intermediate film refers to the sum of the layers of the intermediate film excluding the film.
  • the thickness of the intermediate film 3 does not have to be constant over the entire surface, and may be a wedge shape for laminated glass used for a head-up display, for example. In this case, the thickness of the intermediate film 3 is measured at the thinnest portion, that is, the lowermost side portion of the laminated glass.
  • the intermediate film 3 is wedge-shaped, the outer glass plate and the inner glass plate are not arranged in parallel, but such an arrangement is also included in the “opposing arrangement” between the outer glass plate and the inner glass plate in the present invention. . That is, the “opposing arrangement” of the present invention includes an arrangement of the outer glass plate 1 and the inner glass plate 2 when the intermediate film 3 whose thickness is widened at a change rate of 3 mm or less per 1 m, for example.
  • the manufacturing method of the laminated glass which concerns on this embodiment is not specifically limited, The manufacturing method of a conventionally well-known laminated glass is employable.
  • the intermediate film 3 is sandwiched between the outer glass plate 1 and the inner glass plate 2, placed in a rubber bag, and pre-bonded at about 70 to 110 ° C. while sucking under reduced pressure.
  • Other pre-adhesion methods are possible.
  • the intermediate film 3 is sandwiched between the outer glass plate 1 and the inner glass plate 2 and heated at 45 to 65 ° C. in an oven. Subsequently, this laminated glass is pressed by a roll at 0.45 to 0.55 MPa.
  • the laminated glass is again heated at 80 to 105 ° C. in an oven and then pressed again with a roll at 0.45 to 0.55 MPa.
  • preliminary adhesion is completed.
  • the pre-bonded laminated glass is subjected to main bonding by an autoclave at 8 to 15 atm and 100 to 150 ° C. Specifically, the main bonding can be performed under the conditions of 14 atm and 145 ° C. Thus, the laminated glass according to the present embodiment is manufactured.
  • Laminated glass mounting structure The laminated glass mentioned above can be attached to attachment structures, such as a car and a building, for example. At this time, the laminated glass is attached to the attachment structure via the attachment portion.
  • the attachment portion corresponds to, for example, a frame such as a urethane frame for attachment to an automobile, an adhesive, a clamp, or the like.
  • pins 50 are attached to both ends of the laminated glass 10, and an adhesive 60 is applied to the automobile frame 70 to be attached. .
  • a through hole 80 into which a pin is inserted is formed in the frame. And the laminated glass 10 is attached to the flame
  • the pin 50 is inserted into the through hole 80 and the laminated glass 10 is temporarily fixed to the frame 70. At this time, since a step is formed in the pin 50, the pin 50 is inserted only halfway through the through-hole 80, whereby a gap is generated between the frame 70 and the laminated glass 10. And since the adhesive material 60 mentioned above is apply
  • the attachment angle of the laminated glass 10 is preferably 45 degrees or less from the vertical N as shown in FIG.
  • the Young's modulus of the intermediate film 3 is 100 to 1000 MPa at a frequency of 100 Hz and a temperature of 20 ° C.
  • the total thickness is reduced even if the total thickness of the outer glass plate 1 and the inner glass plate 2 is reduced.
  • sound transmission loss in the frequency region of 2000 to 5000 Hz can be improved.
  • each laminated glass includes an outer glass plate, an inner glass plate, and an intermediate film sandwiched between them.
  • the thickness of the interlayer film was 0.76 mm
  • the frequency was 100 Hz
  • the Young's modulus at a temperature of 20 ° C. was 100 MPa.
  • the above laminated glasses were arranged at an angle of 60 degrees from the vertical, and granite having an average particle size of about 10 mm was collided with each laminated glass at a speed of 64 km / h. Thirty granites collided with each laminated glass, and the occurrence rate of cracks was calculated. The result is as shown in FIG. As shown in the figure, in the laminated glasses 1 to 5 having an outer glass plate thickness of 2.1 mm, the occurrence rate of cracks was 5% or less regardless of the thickness of the inner glass plate. On the other hand, in the laminated glasses 6 and 7 having a thickness of the outer glass plate of 1.8 mm or less, the occurrence rate of cracks was 8% regardless of the thickness of the inner glass. Therefore, from the viewpoint of impact resistance against flying objects, the thickness of the outer glass plate is preferably larger than 1.8 mm as described above. More preferably, it is 2.0 mm or more.
  • the laminated glass which concerns on an Example and a comparative example was prepared as follows, changing the thickness of each glass plate, and the Young's modulus of an intermediate film.
  • Each glass plate was formed of the above-described clear glass.
  • the thickness of the interlayer film was 0.76 mm.
  • the thickness of the interlayer film is measured at a frequency of 100 Hz and a temperature of 20 ° C. This condition is the same in the following description.
  • the sound transmission loss was evaluated by simulation for the above examples and comparative examples.
  • the simulation conditions are as follows.
  • the simulation was performed using acoustic analysis software (ACTRAN, manufactured by Free Field technology).
  • ACTRAN acoustic analysis software
  • the sound transmission loss (transmitted sound pressure level / incident sound pressure level) of the laminated glass can be calculated by solving the following wave equation using the finite element method.
  • Model setting The laminated glass model used in this simulation is shown in FIG.
  • a laminated glass is defined in which an outer glass plate, an intermediate film, an inner glass plate, and a urethane frame are laminated in this order from the sound source side.
  • the reason why the urethane frame is added to the model is that there is a considerable influence on the calculation result of sound transmission loss due to the presence or absence of the urethane frame, and between the laminated glass and the vehicle windshield. This is because it is generally considered that a urethane frame is used and bonded.
  • Input condition 1 (dimensions, etc.)
  • the size of the glass plate 800 ⁇ 500 mm, is smaller than the size used in an actual vehicle.
  • the STL value tends to deteriorate. This is because the larger the size, the larger the constrained portion and the greater the amplitude.
  • the tendency of the relative value for each frequency described above is the same.
  • Random diffused sound waves are sound waves that are transmitted with sound waves of a predetermined frequency with respect to the outer glass plate at angles of incidence in all directions, assuming a sound source in a reverberation chamber that measures sound transmission loss. It has become.
  • the laminated glass which concerns on an Example and a comparative example was prepared as follows. Here, the thickness of the inner glass plate was changed, and the sound transmission loss was calculated by the simulation method. The thickness of the interlayer film was 0.76 mm, and all the Young's moduli were 100 MPa.

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Abstract

[Problème] L'invention a pour but de fournir un verre feuilleté pouvant conserver des propriétés d'isolation acoustique même en étant plus léger ; et une structure de fixation sur laquelle il est fixé. [Solution] Selon l'invention, ce verre feuilleté comprend une première plaque de verre, une deuxième plaque de verre agencée face à la première plaque de verre et un film intermédiaire interposé entre la première plaque de verre et la deuxième plaque de verre. La somme des épaisseurs de la première plaque de verre et de la deuxième plaque de verre est de 2,4-3,8 mm. Le module de Young du film intermédiaire est de 100-1000 MPa, à une fréquence de 100 Hz et à une température de 20°C.
PCT/JP2014/053699 2013-02-18 2014-02-18 Verre feuilleté et structure de fixation sur laquelle il est fixé WO2014126252A1 (fr)

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US10450215B2 (en) 2017-02-20 2019-10-22 Corning Incorporated Shaped glass laminates and methods for forming the same
US11236003B2 (en) 2017-10-18 2022-02-01 Corning Incorporated Methods for controlling separation between glasses during co-sagging to reduce final shape mismatch therebetween

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JP2008513342A (ja) * 2004-09-20 2008-05-01 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 音の透過を低減するためのガラス積層体
JP2012519646A (ja) * 2009-03-06 2012-08-30 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 軽量ガラスラミネート

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US10450215B2 (en) 2017-02-20 2019-10-22 Corning Incorporated Shaped glass laminates and methods for forming the same
US10773988B2 (en) 2017-02-20 2020-09-15 Corning Incorporated Shaped glass laminates
US10954154B2 (en) 2017-02-20 2021-03-23 Corning Incorporated Shaped glass laminates and methods for forming the same
US11465927B2 (en) 2017-02-20 2022-10-11 Corning Incorporated Shaped glass laminates
US11987516B2 (en) 2017-02-20 2024-05-21 Corning Incorporated Shaped glass laminates
US11236003B2 (en) 2017-10-18 2022-02-01 Corning Incorporated Methods for controlling separation between glasses during co-sagging to reduce final shape mismatch therebetween

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