WO2001081081A2 - Liquid assisted lamination of polyvinylbutyral films - Google Patents
Liquid assisted lamination of polyvinylbutyral films Download PDFInfo
- Publication number
- WO2001081081A2 WO2001081081A2 PCT/US2001/013706 US0113706W WO0181081A2 WO 2001081081 A2 WO2001081081 A2 WO 2001081081A2 US 0113706 W US0113706 W US 0113706W WO 0181081 A2 WO0181081 A2 WO 0181081A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pnb
- sheet
- colored
- film
- laminate
- Prior art date
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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0038—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving application of liquid to the layers prior to lamination, e.g. wet laminating
-
- 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
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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
- B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
- B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
- B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
-
- 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
- B32B17/10981—Pre-treatment of the layers
-
- 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
- B32B37/003—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 to avoid air inclusion
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
-
- 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
- B32B2329/00—Polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals
- B32B2329/06—PVB, i.e. polyinylbutyral
-
- 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
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
- B32B37/025—Transfer laminating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
Definitions
- the present invention relates to an improved process for the preparation of colored thermoplastic composite sheeting for use in laminated glass articles.
- This invention particularly relates to an improved process for laminating a colored thermoplastic film onto a thermoplastic sheet, which can then be used to prepare laminated glass articles that are transparent, and have increased resistance to shattering than non-laminated articles.
- Laminated glass articles also referred to herein as safety glass
- Laminated glass articles having regions of color can be desirable in automobile windshields, windows for houses and buildings, showcases, and other applications where transparency and light- filtering are either required or desirable.
- PVB polyvinyl butyral
- PVB films are manufactured with a rough surface to allow air to escape from laminate articles during pre-pressing, typically before exposure to an autoclave cycle.
- the rough surface is also necessary to help prevent the PVB surfaces from sticking to themselves when stacked or wound in rolls for transportation.
- surface roughness is critical to air removal in the manufacture of safety glass
- the rough surface of a PVB sheet can also contribute to incomplete lamination in other PVB lamination processes.
- incomplete lamination can in turn lead to the colored coating being less resistant to marring during subsequent processing. Marring of the colored band can take the form of "scratches" when the coated article is handled at colder temperatures and pinhole type defects resembling "pickoff ' when the colored band contacts high temperature surfaces.
- Solvent-assisted transfer lamination of a colored PNB film onto a PNB sheet is described in Kokai Patent No. Hei 2-129,049.
- a PVB colored film on a base sheet is applied to a PNB sheet that has been previously covered with a solvent that dissolves the PNB, and the film and sheet are pressed together at a temperature below 40°C.
- the base sheet is then peeled away and the solvent is removed by volatilization.
- the colored image transferred to the PNB sheet according to this process is described as having excellent adhesion to the sheet.
- a problem with this process is that thin films can easily be dissolved by these solvents causing visual defects in the normally uniform colored coating. It is also of concern that volatile solvents can produce environmental emissions, and can involve additional process steps and process equipment to prevent worker exposure to the volatile solvents, or escape of the emissions into the environment. De-airing can be a significant concern in most PNB lamination processes.
- the manufacture of laminated safety glass is typically a two step process.
- the first step involves a pre-press operation where the composite (PNB/glass structure before bonding) is assembled, then heated, and then pressed together either through a roller nip, a flat press or by vacuum bag or vacuum ring air removal process.
- the partially laminated composite normally has a significant amount of trapped air, which results in a hazy appearance.
- the incomplete de-airing results in numerous small air bubbles at the interface of the glass and PNB which requires the laminate article to then be- subjected to a high temperature and high pressure environment, typically an autoclave, in order to produce a clear laminate article.
- Colored laminates made by conventional processes, that is a process not of the present invention can have up to 200 pinhole defects per square centimeter when exposed to temperature above 100°C under the conditions of the test used herein.
- the present invention is a process for transfer laminating a colored polyvinyl butyral (PVB) film from a base transfer sheet onto a surface of a PNB sheet, the process comprising the steps: (i) applying a liquid coat onto either (a) the surface of a PNB film (Surface A), wherein the PNB film is in contact with a base transfer sheet at the surface opposite Surface A, or (b) the surface of a PNB sheet (Surface B), or (c) both Surface A and Surface B; (ii) bringing Surface A into contact with Surface B; (iii) pressing the surfaces together at elevated temperature; and, (iv) peeling away the base transfer sheet from the PNB film to obtain a PNB laminate sheet having a colored band on at least a portion of Surface B.
- PVB polyvinyl butyral
- the present invention is a PNB laminate sheet comprising a colored polyvinyl butyral film and a polyvinyl butyral sheet, wherein the laminate is obtained by a process for transfer laminating a colored polyvinyl butyral (PNB) film from a base transfer sheet onto a surface of a PNB sheet, the process comprising the steps: (i) applying a liquid coat onto either (a) the surface of a PNB film (Surface A), wherein the PNB film is in contact with a base transfer sheet at the surface opposite Surface A, or (b) the surface of a PNB sheet (Surface B), or (c) both Surface A and Surface B; (ii) bringing Surface A into contact with Surface B; (iii) pressing the surfaces together at elevated temperature; and, (iv) peeling away the base transfer sheet from the PNB film to obtain a PNB laminate sheet having a colored band on at least a portion of Surface B.
- PNB polyvinyl butyral
- the present invention is a transparent laminated glass article having a colored band on at least part of its surface comprising a PNB laminate sheet which further comprises a colored polyvinyl butyral film and a polyvinyl butyral sheet, wherein the laminate is obtained by a process for transfer laminating a colored polyvinyl butyral (PNB) film from a base transfer sheet onto a surface of a PNB sheet, the process comprising the steps: (i) applying a liquid coat onto either (a) the surface of a PNB film (Surface A), wherein the PNB film is in contact with a base transfer sheet at the surface opposite Surface A, or (b) the surface of a PNB sheet (Surface B), or (c) both Surface A and Surface B; (ii) bringing Surface A into contact with Surface B; (iii) pressing the surfaces together at elevated temperature; and, (iv) peeling away the base transfer sheet from the PNB film to obtain a PNB laminate sheet having a colored band on at least part of its surface
- FIG. 1 depicts a transfer lamination process wherein (i) a colored film on a base transfer sheet and a heated PNB sheet are fed through nip rolls and pressed together to form a colored PNB laminate that includes the base transfer sheet; and (ii) the base transfer sheet is peeled away from the colored PNB using a peel backing roll and a peel drive roll. Water can be added at any or all of three water addition points.
- the present invention is an improved process for transfer laminating a colored PNB film (PNB film) from a colored composite film to a PNB sheet to obtain a colored PNB composite sheet (composite sheet).
- a composite film comprising a colored PNB film on a base transfer sheet can be obtained by known methods.
- the base transfer sheet can first be coated with a layer of non-pigmented PNB resin and an ink layer containing finely divided crystalline pigment particles that are dispersed in a solvent-containing binder resin. In this process, both coating layers can then be dried to remove the volatile solvent, and produce a solvent-free colored composite film.
- the PNB coat applied to the base transfer sheet is at least about 1 micron thick, but not greater than 20 microns thick.
- the thickness of the PNB coat on the base transfer sheet is 4-5 microns.
- the base sheet (also referred to herein as the "transfer sheet” or the “base transfer sheet”) is a sheet of material to which the colored PNB film is temporarily adhered, until such time as it is peeled away from the PNB film.
- the base transfer sheet can comprise any material that forms a weak adhesive bond with the PNB film, such that the transfer sheet can be peeled away without damaging the surface of the PNB film.
- Suitable materials for use as base sheets can be selected from the group consisting of polyester, polypropylene, polyamide, and polyvinyl fluoride.
- Preferred base sheet materials are selected from the group consisting of polyester and polypropylene.
- the color in a PNB film can be imparted to the PNB film by either pigment or dyes.
- a pigment imparts the color to the film.
- the colored film can be obtained by co-extrusion of a dye-containing resin or by direct gravure of PNB based inks onto the surface of the PNB.
- a PNB sheet useful in the practice of the present invention has a roughened surface to allow facile escape of air from the laminate during processing.
- PNB film can be transfer-laminated onto the roughened surface of a PNB sheet material using any conventional means of laminating thermoplastic materials.
- the PNB film can be laminated onto the roughened surface of a PNB sheet in an autoclave, by a flat-press method or in a roller nip process. In either an autoclave or a flat press method, pieces of PNB film and PNB sheet can be laminated together by first heating the PNB and film and then subjecting the heated material to an evenly distributed pressure.
- the temperature at which the lamination proceeds is greater than about 40 °C, and typically in the range of from about 60 °C to about 100 °C. Preferably the temperature is within the range of from about 65 °C to about 85 °C.
- the lamination typically proceeds at a pressure in the range of from about 10 psi to about 100 psi. Preferably the pressure is in the range of from about 30 psi to 60 psi.
- Colored PNB film can be continuously transfer laminated using a nip roller method.
- nip press process a roll of colored PNB film on a base sheet of material and a roll of PNB sheet material are brought into contact at a nip, which is a set of rollers between which the PNB materials are passed under pressure.
- a nip which is a set of rollers between which the PNB materials are passed under pressure.
- the PNB surfaces are pressed together at elevated temperatures, such that the PNB layers adhere to each other with a force greater than the adhesive force that exists between the PNB film and the base transfer sheet.
- temperatures are similar to that of flat press methods.
- Typical nip force in a roller nip process is normally from about 1 to about 20 pounds per linear inch (pli) but preferably from 2 pli to 10 pli.
- a typical nip press operation is depicted in Figure 1.
- the nip rollers can either be stationary, i.e. in a fixed position, or adjustable. Typically only one roller is adjustable and the other is fixed in its position. Typically one of the rolls is driven and the other rotates freely. Both nip rollers can be driven when working with large rolls provided that some mechanism is installed that allows for slippage, such as a variable clutch. There are two types of nips, those in which only the spacing is controlled and those in which only the force is controlled. Typically, a floating nip is used which allows the spacing to vary so as to produce even nip forces around the circumference of the roll.
- the thickness of the base PNB sheet is normally in the range from about
- the thickness is preferably in the range from about 30 mils to about 37 mils.
- the thickness of the transfer sheet can be in the range from about 0.6 mils to about 7 mils, and is preferably in the range of from about 0.6 to about 1.0 mils.
- the colored coating is typically very thin in order to have a minimal effect on surface roughness and caliper of the base sheeting. Coating thickness can range from about 2 microns to about 20 microns, and is preferably from about 4 microns to about 5 microns.
- a lamination process of the present invention can virtually eliminate air in a composite structure, thereby requiring less pressure for complete lamination, which can improve the lamination quality and can eliminate steps in the manufacturing process. Since moisture can have a deleterious affect on adhesion between glass and PNB, the amount of moisture absorbed should be controlled either in the laminating process or by carefully controlling or minimizing the void fraction in the surface pattern of the PNB. Various methods of controlling water content would be known to one skilled in the art of glass laminate manufacturing. Other liquids can be useful in the practice of the present invention, in addition to water.
- Suitable liquids are not limited to pure water, and include other liquids which are not PNB solvents but are readily absorbed by PNB in small quantities can be used, for example hydrocarbons such as hexane and toluene; ethers such as ethyl ether and tetrahydrofuran; ketones such as methyl ethyl ketone and acetone; esters such as ethyl acetate; and similar compounds can be used.
- water or a mixture of water with additives to enhance wetability are used.
- additives include, for example, silicone surfactants, polyols, or other compatible materials known to those skilled in the art.
- water is applied to at least one of the surfaces of the materials being laminated prior to pressing the surfaces together, such that at least one of the surfaces being pressed together is wet prior to contact with the other surface.
- the resulting lamination quality is improved.
- the resulting product is much more resistant to marring by scratching and/or by pickoff.
- the nature of this improvement requires that only enough water be added to "flood" the nip area in order to eliminate any trapped air. Excess water, that amount above the amount that is required to eliminate trapped air, can cause incomplete coating transfer and bubble like visual defects when laminated to glass.
- the water application should be in the range of from about 1 micron to about 10 microns.
- the amount of water required can be reduced by temporary compression of the rough surface to minimize the void area. Certain circumstances, for example at higher temperatures where evaporation of water is an issue, can necessitate that additional water be applied.
- Water application thickness for typical PNB patterns with maximum peak heights of 50 microns and void fractions from about 40 % to about 60 % are between 5 microns and 8 microns. This is typical for transfer laminating at around 65 °C to 70 °C and between 5 pli and 10 pli of nip force.
- Moisture levels in commercial grade PNB's are typically controlled to within 0.4 % to 0.6 % moisture by weight. Numerous processing and storage factors can adversely affect moisture making the material unsuitable for normal end uses. Since moisture can be removed in heating processes, moisture removal should be balanced with moisture added according to the process of the present invention.
- the moisture effect of flooding the laminating nip is has been measured to be an increase in bulk sheet moisture of between 0.10% and 0.25 %. More typical under controlled conditions, moisture absorption is between 0.15% and 0.20%.
- moisture removed by heating prior to laminating is balanced with the moisture absorbed in the laminating operation.
- moisture in the non-laminated areas must also be restored. This can not be accomplished by conventional methods of exposure to a moisturizing chamber since moisture in the laminating area would also be increased.
- Selective moisture addition can be achieved in the non- laminated area by direct spray methods either prior to or immediately after lamination.
- the present invention is an improved lamination process wherein the improvement resides in the improved de-airing of the laminate article, either prior to or during the lamination process, caused by incorporation of water into the lamination process.
- An example of one such process is manufacture of laminated safety glass.
- the substitution of water or other suitable liquids that are more readily absorbed by the PVB than air can reduce the trapped air.
- excess water normally reduces glass to PNB adhesion
- the PNB surface can be manufactured with very shallow roughness with a much lower void fraction allowing water assisted de-airing with a minimum of water absorption.
- Figure 1 depicts a transfer lamination process wherein (i) a colored film (1) on a base transfer sheet and a heated PNB sheet (2) are fed through nip rolls (3) and (4) and pressed together to form a colored PNB laminate that includes the base transfer sheet (5); and (ii) the base transfer sheet (6) is peeled away from the colored PNB (7) using a peel backing roll (8) and a peel drive roll (9). Water can be added at any or all of three water addition points (10), (11), and (12).
- EXAMPLE 1 Examples of the present invention and Comparative Examples were prepared and tested for scratch resistance.
- Examples of the present invention were prepared by unwinding a roll of 30 mil PNB manufactured with a melt fractured surface with a maximum peak height of 45 microns. The PNB was heated to a temperature of 70 °C and a very thin layer of water, less than 10 microns, was coated onto one surface. The heated material was passed through a roller nip where it was contacted with a polyester film coated with a thin a layer of PNB containing an evenly distributed pigmented colorant. The two films were joined under pressure and any excess was squeezed out of the laminated article.
- Example 2 Examples of the present invention and comparative samples were prepared consistent with the method used in Example 1. Samples were stored at 10 °C for two weeks to measure the effect of storage time on scratch resistance. Samples were subjected to scratch testing in accordance with Example 1 using additional stylus force. Results of scratch testing using this method are presented in Table 2.
- Examples of the present invention and comparative samples were prepared consistent with the process used in Example 1.
- the sample materials were cooled to 10 °C and wound into roll form.
- the rolls were unwound and preheated by passing through a series of heated rolls before passing onto a heated drum to simulate a typical PVB stretching process.
- the drum temperature was varied between 95 °C and 135 °C with the colored surface of the samples in contact with the hot drum.
- the sheeting was pulled from the drum under higher than normal tension to exaggerate the onset of pinhole defects by causing movement between the sheeting and the drum.
- An example of the present invention is produced by applying a colored shadeband on a portion of the sheeting using water-assisted lamination as described herein. Since the process involves bringing the sheeting to an elevated temperature, moisture loss in the sheeting is inevitable. This moisture loss can be replaced in a variety of ways but the nature of the present invention requires that a selective moisture replacement method be used.
- the uncolored sheeting area is sprayed with a fine mist of water using multiple nozzles across the width of the sheeting in a region of elevated sheet temperature. The number of nozzles and the nozzle flow rate are controlled based on the uncolored width and the line speed.
- the result of this process is a product that is manufactured with controlled and uniform levels of moisture despite the local absorption of moisture in the colored region of the sheeting where a water assisted colored layer transfer has been performed.
- Moisture levels in commercial grade PNB's are typically controlled to within 0.4%) to 0.6 % moisture by weight. This range of moisture content is easily accomplished at a variety of line speeds utilizing this method. Data obtained on moisture content of sheeting produced by this method indicates that moisture variability across the sheeting can be controlled to within .02% moisture content by weight.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01930877A EP1276607A2 (en) | 2000-04-27 | 2001-04-27 | Liquid assisted lamination of polyvinylbutyral films |
MXPA02010571A MXPA02010571A (en) | 2000-04-27 | 2001-04-27 | Liquid assisted lamination of polyvinylbutyral films. |
JP2001578204A JP2003531041A (en) | 2000-04-27 | 2001-04-27 | Liquid-assisted lamination of polyvinyl butyral film |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20007500P | 2000-04-27 | 2000-04-27 | |
US60/200,075 | 2000-04-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001081081A2 true WO2001081081A2 (en) | 2001-11-01 |
WO2001081081A3 WO2001081081A3 (en) | 2002-04-04 |
Family
ID=22740221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/013706 WO2001081081A2 (en) | 2000-04-27 | 2001-04-27 | Liquid assisted lamination of polyvinylbutyral films |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030034119A1 (en) |
EP (1) | EP1276607A2 (en) |
JP (1) | JP2003531041A (en) |
MX (1) | MXPA02010571A (en) |
WO (1) | WO2001081081A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006102198A1 (en) * | 2005-03-24 | 2006-09-28 | Solutia Incorporated | Polymer interlayers comprising skin layers |
CN101369110B (en) * | 2007-08-16 | 2012-06-13 | 株式会社理光 | Sheet bonding machine, post processing device, image forming apparatus including same, and sheet bonding method |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060231189A1 (en) * | 2005-04-15 | 2006-10-19 | Solutia, Inc. | Low moisture polymer sheets |
US20080254302A1 (en) * | 2007-04-13 | 2008-10-16 | David Paul Bourcier | Multiple layer polymer interlayers having a melt fractured surface |
JP5539805B2 (en) * | 2010-07-22 | 2014-07-02 | 株式会社彫刻プラスト | LAMINATED MATERIAL MANUFACTURING METHOD, LAMINATED MATERIAL MANUFACTURING DEVICE, CONTAINER, AND PACKAGING BAG |
KR20210008386A (en) * | 2018-06-21 | 2021-01-21 | 쌩-고벵 글래스 프랑스 | Manufacturing method of composite plate glass with polarization selective coating |
CN110054422A (en) * | 2019-05-16 | 2019-07-26 | 天津南玻节能玻璃有限公司 | Air guide agent, preparation method and its exhaust liquid method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1470844A (en) * | 1973-04-27 | 1977-04-21 | Monsanto Co | Composite interlayer for laminated safety glass |
US4341576A (en) * | 1981-06-01 | 1982-07-27 | Ppg Industries, Inc. | Fabricating laminated safety glass without an autoclave |
US4976805A (en) * | 1987-03-09 | 1990-12-11 | Dai Nippon Insatsu Kabushiki Kaisha | Process for manufacture of decorative intermediate films for use in laminated glass sheets |
US5536347A (en) * | 1994-09-22 | 1996-07-16 | Monsanto Company | No autoclave process for forming a safety glass laminate |
WO2001000407A1 (en) * | 1999-06-25 | 2001-01-04 | E.I. Du Pont De Nemours And Company | Interlayer composite structure for laminated glass with controlled bonding between the layers and the process for the production of the interlayer structure |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4470858A (en) * | 1982-12-06 | 1984-09-11 | Deltaglass S.A. | Lamination process and apparatus |
JPH02129049A (en) * | 1988-11-08 | 1990-05-17 | Mitsubishi Monsanto Chem Co | Production of intermediate membrane for laminated safety glass having colored band |
WO1997043118A1 (en) * | 1996-05-14 | 1997-11-20 | Toyo Kohan Co., Ltd. | Method and apparatus for manufacturing metallic sheet covered with thermoplastic resin |
US6432522B1 (en) * | 1999-02-20 | 2002-08-13 | Saint-Gobain Vitrage | Transparent acoustical and mechanical barrier |
-
2001
- 2001-04-27 US US10/220,901 patent/US20030034119A1/en not_active Abandoned
- 2001-04-27 WO PCT/US2001/013706 patent/WO2001081081A2/en not_active Application Discontinuation
- 2001-04-27 MX MXPA02010571A patent/MXPA02010571A/en unknown
- 2001-04-27 EP EP01930877A patent/EP1276607A2/en not_active Withdrawn
- 2001-04-27 JP JP2001578204A patent/JP2003531041A/en active Pending
Patent Citations (5)
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GB1470844A (en) * | 1973-04-27 | 1977-04-21 | Monsanto Co | Composite interlayer for laminated safety glass |
US4341576A (en) * | 1981-06-01 | 1982-07-27 | Ppg Industries, Inc. | Fabricating laminated safety glass without an autoclave |
US4976805A (en) * | 1987-03-09 | 1990-12-11 | Dai Nippon Insatsu Kabushiki Kaisha | Process for manufacture of decorative intermediate films for use in laminated glass sheets |
US5536347A (en) * | 1994-09-22 | 1996-07-16 | Monsanto Company | No autoclave process for forming a safety glass laminate |
WO2001000407A1 (en) * | 1999-06-25 | 2001-01-04 | E.I. Du Pont De Nemours And Company | Interlayer composite structure for laminated glass with controlled bonding between the layers and the process for the production of the interlayer structure |
Non-Patent Citations (1)
Title |
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DATABASE WPI Section Ch, Week 199026 Derwent Publications Ltd., London, GB; Class A10, AN 1990-196788 XP002184532 & JP 02 129049 A (MONSANTO17-05-1990) cited in the application * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006102198A1 (en) * | 2005-03-24 | 2006-09-28 | Solutia Incorporated | Polymer interlayers comprising skin layers |
AU2006227304B2 (en) * | 2005-03-24 | 2011-04-14 | Solutia Inc. | Polymer interlayers comprising skin layers |
CN101369110B (en) * | 2007-08-16 | 2012-06-13 | 株式会社理光 | Sheet bonding machine, post processing device, image forming apparatus including same, and sheet bonding method |
Also Published As
Publication number | Publication date |
---|---|
WO2001081081A3 (en) | 2002-04-04 |
US20030034119A1 (en) | 2003-02-20 |
JP2003531041A (en) | 2003-10-21 |
MXPA02010571A (en) | 2003-05-14 |
EP1276607A2 (en) | 2003-01-22 |
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