CN208906630U

CN208906630U - Engagement laminated film and light transmission layered product comprising the engagement laminated film

Info

Publication number: CN208906630U
Application number: CN201821303284.1U
Authority: CN
Inventors: 李学守; 金惠珍; 郑盛真; 延济源; 金兴植
Original assignee: SKC Co Ltd
Current assignee: Aisikai Mcwoo Co ltd
Priority date: 2018-03-30
Filing date: 2018-08-13
Publication date: 2019-05-28
Anticipated expiration: 2028-08-13
Also published as: CN114670518B; CN114670518A; CN110315822A

Abstract

The utility model relates to engage to use laminated film and comprising the light transmission layered product of the engagement laminated film.The engagement has the laminated film of first end and the second end opposite with the first end with laminated film.The engagement laminated film includes: basal layer, shares its one side containing polyvinyl acetal resin, and with the first end, and in the shape gradually increased close to the first end thickness；And enhancement layer, its one side is shared with the second end, and in the shape gradually decreased close to its thickness of the second end.When engaging with glass etc., impact resistance is excellent with penetration resistance, and also has sound insulation value, is suitable for use in head-up display (HUD).

Description

Engagement laminated film and light transmission layered product comprising the engagement laminated film

Technical field

The utility model relates to section engagement laminated film triangular in shape or trapezoidal and preparation method thereof, there is the engagement The light transmission layered product of the windshield (windshield) of the vehicles such as automobile can be acted effectively as with laminated film, and is mentioned For impact resistance, penetration resistance it is excellent and with excellent noise isolation characteristic, thickness is thin and engagement with sufficient intensity Laminated film etc..

Background technique

Pioloform, polyvinyl acetal is used as the middle layer of laminated glass (safety glass) or light transmitting laminates.Laminated glass is main Window, outer packing material for building etc. and glass for vehicle window etc., due to that will not disperse the fragment in breakage And the feature not also being pierced under the impact of prescribed strength etc., it is thus ensured that stability, can make to apply inside it Object or person damage or injured reach minimum.

In recent years, the case where head-up display (HUD, Head Up Display) is installed in automobile gradually increases.Specifically In the following way: by the projector of instrument disk area or car roof area by image projection in windshield (windshield) on, such driver can perceive the projected image.This head-up display can make driver Can on one side watch attentively road ahead can also while get significant data, such as current driving information, navigation information, warning information Deng.Therefore there is sizable help to the convenience and traffic safety of driving.

However, but there is following basic problem in head-up display: since projector image is projected on automotive windshield glass On glass, therefore as that can be reflected by the both side surface (the inner surface and the outer surface) of windshield, needed for driver not only perceives The first image, while the slightly weak ghost of intensity (ghost image) can also be perceived.It uses in order to solve this problem A kind of method is to keep the vertical cross-section of the middle layer between glass wedge shaped (wedge-shaped).

However, this wedge shape middle layer is unable to satisfy enough impact resistances needed for vehicle glass in the case where thickness is thin Property, the performance of penetration resistance or the characteristic that such as noise isolation can not be met enough.

Background technique as described above is retained or for exporting the utility model as in this reality by utility model people With the technical information of institute's acquistion in novel export process, not necessarily before the present utility model application known to general public Well-known technique.

Existing technical literature

Patent document

Patent document 1: it Korean granted patent the 10-1310022nd, " can reduce among multiple wedge shaped polymers of the sound Layer "

Patent document 2: KR published patent the 10-2017-0131238th, " laminated glass including functional film "

Utility model content

The purpose of the utility model is to provide the wedge-shaped plural layers that impact resistance, penetration resistance are excellent.This is practical new The another object of type is, provides that noise isolation excellent, thickness is thin and plural layers with sufficient intensity.

In order to realize the purpose, according to the engagement laminated film of an embodiment of the present invention be with first end and The opposite second end with the first end.Wherein, comprising: basal layer, in close to the first end thickness gradually Increased shape；And enhancement layer, in the shape gradually increased close to the second end thickness.

The engagement laminated film along connect the first end a little with any straight of the second end The shape in laminated film section made of wire cutting is greater than the thickness value of the second end in the thickness value of the first end Triangle or trapezoidal shape.

The first end includes polyvinyl acetal resin.

The enhanced layer packets contain ionomer, pet resin or polyimide resin.

The cross sectional shape of the laminated film includes: the section of basal layer, in comparable with the thickness of the first end Triangle or trapezoidal shape of the line as bottom surface；The section of enhancement layer, in make with the comparable line of the thickness of the second end For the triangle or trapezoidal shape of bottom surface.

The basal layer further includes the functional layer with sound insulation function.

The functional layer is located at the inside of the basal layer and not direct contacts with the enhancement layer.

The functional layer and the basal layer share the one side in the exterior face of the basal layer and directly with the enhancing Layer is in contact on one side.

The functional layer can have the function of sound insulation.

In the first end, the thickness proportion of the basal layer and the enhancement layer can be 10:0 to 10:2.

In the second end, the thickness proportion of the enhancement layer and the basal layer can be 10:0 to 10:4.

In the first end, the functional layer and the thickness proportion of the basal layer in addition to the functional layer can be 1:3 To 1:10.

The thickness of the second end is smaller than 0.38mm.

The thickness of the first end can be 0.95mm or less.

The thickness of the first end can be 0.2mm or more thicker than the thickness of the second end.

The engagement laminated film can meet the impact resistance characteristic of Koream Industrial Standard KS L 2007:2008.

The engagement laminated film can meet the penetration resistance characteristic of Koream Industrial Standard KS L 2007.

The preparation method of the engagement laminated film of another embodiment according to the present utility model includes: co-extrusion step, including The basal layer formation containing polyvinyl acetal resin is squeezed with composition in basal layer extrusion process and enhancing Layer extrusion forms the enhancement layer containing ionomer, pet resin or polyimide resin The process squeezed with composition；Forming step, the basal layer after the co-extrusion are formed to be formed with composition and enhancement layer and be used Composition is mobile to supply unit (feed block), prepares the engagement laminated film with basal layer and enhancement layer, the engagement There is the first end and second end for being located at the direction perpendicular with direction is squeezed out with laminated film, the basal layer is by the base The formation of plinth layer is formed as with composition with the shape gradually increased close to the first end thickness, and the enhancement layer is by enhancing Layer formation is formed as with composition with the shape gradually increased close to the second end thickness.

The engagement laminated film along connect the first end a little and some phases of the second end The cross sectional shape of laminated film made of straight cuts is greater than the thickness value of the second end in the thickness value of the first end Triangle or trapezoidal shape.

The co-extrusion step may also include to the polyvinyl acetal resin comprising 54wt% to 76wt% and 24wt% extremely The functional layer formation of the plasticizer of 46wt% carries out the process of co-extrusion with composition.Wherein, described to connect in the forming step Functional layer can be also formed in the inside of the basal layer or between the enhancement layer and the basal layer by sharing laminated film.

The light transmission layered product of another embodiment according to the present utility model includes: the first photic zone；This reality as described above With the engagement laminated film of a novel embodiment, the engagement is located in the described first euphotic one side with laminated film；And Second photic zone is located on the engagement laminated film.

First photic zone and second photic zone can be each independently translucent glass or translucency plastics.

In order to realize the purpose, the engagement laminated film of an embodiment of the present invention for first end and with institute State the laminated film of the opposite second end of first end.The engagement laminated film includes: basal layer, total with the first end Its one side is enjoyed, and in the shape gradually increased close to the first end thickness；And enhancement layer, with the second end Its one side is shared, and in the shape gradually decreased close to the second end thickness.Along the connection first end Some cross sectional shape of laminated film made of the straight cuts of any with the second end, in the thickness of the first end Value is greater than the polygonal shape of the thickness value of the second end.

The enhancement layer may include the first enhancement layer and the second enhancement layer.

First enhancement layer can be homosphere, that is, constitute the substance of first enhancement layer and ratio is fixed and it It is unrelated the location of in first enhancement layer, and essentially by being uniformly mixed.

Second enhancement layer can be heterosphere, that is, the substance and ratio for constituting second enhancement layer are with it It is different and different the location of in second enhancement layer, and essentially by unevenly mixing.

The basal layer includes polyvinyl acetal resin.

First enhancement layer and the second end share its one side, and contain as ionomer, gather The enhancement layer resin of ethylene glycol terephthalate resin or polyimide resin.

Second enhancement layer is between the basal layer and first enhancement layer, and the institute uneven containing mixing State polyvinyl acetal resin and the enhancement layer resin.

The basal layer may also include the functional layer positioned at the inside of the basal layer.

The functional layer can have the function of sound insulation.

The cross sectional shape of the laminated film is in be connected by the first end, the first face, the second end and the second face Made of polygonal shape, the one end in first face is connected with the first end and the other end and the second end phase Connection, the one end in second face is connected with the second end and the other end is connected with the first end, described Second end, first face and the face for being parallel to second face are formed by angle, θ₂For 1mrad to 4mrad.

The cross sectional shape of the laminated film is in be connected by the first end, the first face, the second end and the second face Made of polygonal shape, the one end in first face is connected with the first end and the other end and the second end phase Connection, the one end in second face is connected with the second end and the other end is connected with the first end, in institute First end is stated, first face and the face for being parallel to second face are formed by angle, θ₁For 0.5mrad to 0.8mrad.

The cross sectional shape of the laminated film includes having Curved in the one side in first face and second face The correcting area P of shape.

The cross sectional shape of the laminated film may include in first face or second face with the second enhancement layer phase The part answered i.e. correcting area P.

The surface roughness of the correcting area P can be 30 μm to 90 μm.

The height H of enhancement layer₅₀₀For 1mm to 250mm, the height of the enhancement layer is the institute being in contact with the enhancement layer State the distance between any of second end farthest described in the distance of any in second end to the enhancement layer.

The thickness of the second end is smaller than 0.38mm.

The preparation method of the engagement laminated film of another embodiment according to the present utility model includes: co-extrusion step, including The basal layer formation containing polyvinyl acetal resin is squeezed with composition in basal layer extrusion process and enhancing Layer extrusion forms the enhancement layer containing ionomer, pet resin or polyimide resin The process squeezed with composition；Forming step, the basal layer after the co-extrusion are formed to be formed with composition and enhancement layer and be used Composition is mobile to supply unit (feed block), prepares the engagement laminated film with basal layer and enhancement layer, the engagement There is the first end and second end positioned at the direction perpendicular with the direction of extrusion with laminated film, the basal layer contains described Basal layer formation composition and with the first end share its one side and in close to the first end thickness gradually Increased shape, the enhancement layer contain enhancement layer formation composition and with the second end share its one side and in The shape gradually increased close to the second end thickness.

The engagement laminated film along connect the first end a little with any straight of the second end The cross sectional shape of laminated film made of wire cutting is in that the thickness value of the first end is greater than the thickness value of the second end Polygonal shape.

The co-extrusion step may also include to the polyvinyl acetal resin comprising 54wt% to 76wt% and 24wt% extremely The functional layer formation of the plasticizer of 46wt% carries out the process of co-extrusion with composition, and in the forming step, the engagement is used In laminated film functional layer can be also formed in the inside of the basal layer.

The light transmission layered product of another embodiment according to the present utility model includes: the first photic zone；Engagement as described above With laminated film, it is located in the described first euphotic one side；And second photic zone, it is located on the engagement laminated film.

The engagement laminated film of the utility model and light transmission layered product comprising the engagement laminated film had both had excellent Impact resistance and penetration resistance characteristic, thickness is thin and has sound insulation value.Also, using projector come Projection Display information When, the light transmission layered product including engagement laminated film of the utility model will not form dual imaging, therefore the light transmission is laminated Utilization rate of the body in head-up display system is higher.

It is triangular in shape or trapezoidal that the preparation method of the engagement of the utility model laminated film prepares section in a manner of co-extrusion The engagement laminated film of shape, thus can mass production in asymmetry specific cross-sectional shape laminar structure film.

Detailed description of the invention

Fig. 1 is the schematic diagram of the light transmission layered product prepared according to an embodiment of the present invention.

Fig. 2 is cross sectional shape and the head-up display system for illustrating the light transmission layered product prepared according to an embodiment of the present invention The schematic diagram of system.

Fig. 3 is the signal for illustrating the cross section structure of engagement laminated film of another embodiment preparation according to the present utility model Figure.

Fig. 4 is the signal for illustrating the cross section structure of engagement laminated film of another embodiment preparation according to the present utility model Figure.

Fig. 5 is to illustrate that the cross sectional shape of the light transmission layered product of another embodiment preparation according to the present utility model and head-up are aobvious Show the schematic diagram of system.

Fig. 6 A, Fig. 6 B are respectively the section for illustrating the engagement laminated film of another embodiment preparation according to the present utility model The schematic diagram of structure.

Fig. 7 A, Fig. 7 B are to illustrate the engagement of another embodiment preparation according to the present utility model cross section structure of laminated film Schematic diagram, Fig. 7 A is used to illustrate the height of enhancement layer, and Fig. 7 B is used to illustrate the angle of enhancement layer.

Fig. 8 is carried out dividing when penetration resistance assessment and impact resistance assessment in the experimental example of the utility model by explanation Each region schematic diagram.

The explanation of appended drawing reference

100: 110: the first face of laminated film is used in engagement

120: 130: the second face of first end

140: second end 160: photo-shield strip

200: the first photic zones 300: basal layer

320: 340: the second basal layer of first foundation layer

400: functional layer 500: enhancement layer

520: the first enhancement layer, 540: the second enhancement layer (uneven enhancement layer)

600: the second photic zones 700: light transmission layered product

800: projector 900: head-up display system

A bit of A: a point B: second end for first end

T₁₂₀: the thickness of the engagement laminated film in first end

(with the first face and the distance between the second face in the section of A-B wire cutting)

T₁₄₀: the thickness of the engagement laminated film in second end

T₃₀₀: the thickness T of basal layer₄₀₀: the thickness of functional layer

T₅₀₀: the thickness of enhancement layer

H₅₀₀: the height H of enhancement layer₅₂₀: the height of the first enhancement layer

H₅₄₀: the height of the second enhancement layer (uneven enhancement layer)

P: correcting area

Specific embodiment

It is general so as to the utility model technical field hereinafter, the utility model is described in detail referring to attached drawing Logical technical staff is easy to implement.However, the utility model can be realized in a multitude of different ways, it is not limited to described herein Embodiment.Identical appended drawing reference is labelled with to similar portion in specification full text.

The terms such as " about " of expression degree used in the present specification, " substantial " not only include mentioned meaning In numerical value etc., but also including the meaning close to the numerical value etc..This be intended to encroach in order to prevent it is disclosed in the utility model The improper statement using in order to help the understanding of the utility model and the accurate numerical value proposed or absolute figure etc. of the people of content And it uses.

In this specification, the term for belonging to " their combination " of the expression of Markush form refers to selected from by horse The mixing or combination of one or more of group of multiple structural element compositions described in the expression of the western form in library, and refer to packet Containing selected from one or more of the group being made of multiple structural elements.

In this specification, the narration of " A and/or B " refers to " A, B or A and B ".

In this specification, unless otherwise specified, such as " first ", " second " or " A ", " B " term in order to Mutually distinguishes same term and use.

In the present specification, B be located at the meaning on A refer to B be located on A or in which there are other layers in the case where B In on A or can be located at A on, should not be limited to B and be located at the meaning on the surface A in a contact fashion to explain.

Unless otherwise specified, statement singular in the present specification is construed to include odd number or answer that context is explained Several meanings.

In the present specification, in order to be illustrated to utility model, the size of each structural element can amplify in attached drawing It indicates, it is possible to different from the size of actual use.

The utility model people of the utility model recognizes following problem, that is, in the wedge shaped junction film of Formation cross-section In the case of, necessarily lead to the thinning section of the thickness of junction film, in the case where this junction film is suitable for laminated glass, as The physical characteristic relevant to the stability of tempered glass of impact resistance, the penetration resistance in the thin section of thickness etc. is deteriorated in this way. During researching and solving the method for this problem, it is understood that being come in a manner of specific structure can using the method for xenogenesis resin It solves the problems, such as this, and completes the utility model.

Hereinafter, an embodiment of the present invention is described in detail.

Fig. 1 is the shape for the light transmission layered product 700 according to an embodiment of the present invention preparation for illustrating that overlook view arrives Schematic diagram, Fig. 2 is to illustrate that the cross sectional shape of the light transmission layered product 700 prepared according to an embodiment of the present invention and head-up are aobvious Show that the schematic diagram of system 900, Fig. 3 and Fig. 4 are respectively the engagement layer for illustrating another embodiment preparation according to the present utility model The schematic diagram of the cross section structure of press mold 100.Hereinafter, being further elaborated with another reality of the utility model referring to figs. 1 to Fig. 4 Apply example.

The engagement laminated film 100 of another embodiment according to the present utility model be with first end 120 and with it is described The laminated film of the second end 140 of opposite (opposite) configuration of first end.The engagement laminated film 100 includes: i) basal layer 300, in the shape gradually increased close to 120 thickness of first end；And ii) enhancement layer 500, in close to institute State the shape that 140 thickness of second end gradually increases.

In the engagement in laminated film 100, the thickness T of the first end₁₂₀Than the thickness T of the second end₁₄₀ Thickness, and along section shape made of the straight cuts of the point B for the point A and the second end for connecting the first end Shape is triangular in shape or trapezoidal shape.

Therefore, the engagement wedge shaped shape (wedge-shaped) on the whole of laminated film 100, the first end 120 compared with the second end 140 thickness it is thick (referring to Fig. 2).

The cross sectional shape of the laminated film 100 can include: the section of basal layer 300, in the thickness of the first end 120 Spend triangle or trapezoidal shape of the comparable line as bottom surface；The section of enhancement layer 500, in the thickness of the second end 140 Spend triangle or trapezoidal shape of the comparable line as bottom surface.

The one side other than bottom surface in the section of the enhancement layer 500 can in the section of the basal layer 300 Being in contact other than bottom surface on one side.

In addition, may be alternatively located at the basal layer 300 on one side other than bottom surface in the section of the enhancement layer 500 In the one side other than bottom surface in section.

In addition, one side other than bottom surface in the section of the enhancement layer 500 in the section of the basal layer 300 In the one side other than bottom surface between, can also have other function layer.Specifically, can have shade band layer etc..

The basal layer 300 may also include on its interior or between the enhancement layer 500 and the basal layer 300 Functional layer 400 (referring to Fig. 3 and Fig. 4).

The functional layer 400 can be located at the inside of the basal layer 300 and not direct be in contact with the enhancement layer 500.

The functional layer 400 can also be shared on one side and wherein at least a part of direct with the exterior face of the basal layer 300 With being in contact on one side for the enhancement layer 500.

Specifically, sound insulation functional layer can be used as the functional layer 400.

In the first end 120, the thickness proportion of the basal layer 300 and the enhancement layer 500 can be for 10:0 extremely 10:2.Specifically, in the first end 120, the thickness proportion of the basal layer 300 and the enhancement layer 500 can be The thickness proportion of 10:0 to 10:1.3, the basal layer 300 and the enhancement layer 500 can also be 10:0.1 to 10:1.3.

In the first end 120, when with the thickness T of the basal layer₃₀₀When for 10 as benchmark, the enhancement layer Thickness T₅₀₀The enhancement layer 500 is created substantially absent in the thickness for referring to the first end 120 for 0.This refers to contains as follows Justice: when using section (section made of cutting along A-B) as benchmark, the enhancement layer 500 is with close to second end 140, thickness gradually increases, and as close to the first end 120, thickness is gradually decreased, therefore shape triangular in shape, That is, the part being in contact with the second end 140 using enhancement layer 500 is as bottom surface, and with enhancement layer 500 and first end The end that end 120 is in contact or position relies on recently is as vertex.

In the first end 120, when with the thickness T of the basal layer₃₀₀When for 10 as benchmark, the enhancement layer Thickness T₅₀₀The thickness T for not referring to the first end for 0₁₂₀In there is essentially a part of enhancement layers 500.This refers to Following meaning: when using section (section made of cutting along A-B) as benchmark, the enhancement layer 500 is with close to second End 140, thickness gradually increases, and as close to the first end 120, thickness is gradually decreased, therefore trapezoidal shape Shape, that is, the part being in contact using enhancement layer 500 with the second end 140 is as bottom surface, and with enhancement layer 500 and described the The part that one end 120 is in contact is as top surface.

In the second end 140, the thickness proportion of the enhancement layer 500 and the basal layer 300 can be for 10:0 extremely 10:4.Specifically, in the second end 140, the thickness proportion of the basal layer 300 and the enhancement layer 500 can be 10:0 to 10:3.3, in the second end 140, the thickness proportion of the basal layer 300 and the enhancement layer 500 can also be 10:0 to 10:2.5, thickness proportion can also be 10:0.1 to 10:2.5.

In the second end 140, when with the thickness T of the enhancement layer₅₀₀When for 10 as benchmark, the basal layer Thickness T₃₀₀The thickness T for referring to the second end for 0₁₄₀In be created substantially absent the basal layer 300.This refers to contains as follows Justice: when using section (section made of cutting along A-B) as benchmark, the basal layer 300 is with close to first end 120, thickness gradually increases, and as close to the second end 140, thickness is gradually decreased, therefore shape triangular in shape, That is, the part being in contact with the first end 120 using basal layer 300 is as bottom surface, and with basal layer 300 and second end The end that end 140 is in contact or position relies on recently is as vertex.

In the second end 140, when with the thickness T of the enhancement layer₅₀₀When for 10 as benchmark, the basal layer Thickness T₃₀₀The thickness T for not referring to the second end for 0₁₄₀In there is essentially a part of basal layers 300.This refers to Following meaning: when using section (section made of cutting along A-B) as benchmark, the basal layer 300 is with close to first End 120, thickness gradually increases, and as close to the second end 140, thickness is gradually decreased, therefore trapezoidal shape Shape, that is, the part being in contact using basal layer 300 with the first end 120 is as bottom surface, and with basal layer 300 and described the The part that two ends 140 are in contact is as top surface.

Wherein, the engagement is with laminated film 100 by along the point A's and the second end for connecting the first end Laminated film cross sectional shape made of the straight cuts of one point B can be in the thickness T of the first end₁₂₀It is thicker than second end The thickness T at end₁₄₀Triangle or trapezoidal shape.For the cross sectional shape of the laminated film, the triangle of basal layer 300 is cut The base length value of face or trapezoid cross section can be greater than the triangular-section of enhancement layer 500 or the base length value of trapezoid cross section.

In the first end 120, i) functional layer 400 and ii) basal layer other than the functional layer 400 Thickness proportion between 300 can be 1:3 to 1:10.Specifically, in the first end 120, the functional layer 400 with remove The thickness proportion between basal layer 300 except the functional layer 400 can be 1:4 to 1:8.

In this case, be conducive to meet the physical characteristic that engagement laminated film should have simultaneously, that is, the functional layer The engaging force etc. that the functional characteristics such as 400 sound dampings having and the basal layer 300 have.

In the second end 140, i) functional layer 400 and ii) basal layer other than the functional layer 400 Thickness proportion between 300 can be 1:0.1 to 1:2.Specifically, in the second end 140, the functional layer 400 with The thickness proportion between basal layer 300 other than the functional layer 400 can be 1:0.3 to 1:1.5.When the functional layer 400 with this ratio when being located in the basal layer 300, with it is enough it is functional simultaneously, moreover it is possible to meet basal layer 300 The physical characteristic of the engagements laminated film such as engaging force that should have.In particular, when using the functional layer 400 be 1 as benchmark when, when When the thickness of basal layer 300 other than the functional layer 400 is greater than 2, the sound damping of the engagement laminated film 100 has It may not enough, and when less than 0.1 mechanical property or be likely to decrease with the engaging force of the substrates such as glass.

Thickness T in the first end₁₂₀Than the thickness T of the second end₁₄₀Thick 0.2mm or more, specifically, Can thicker 0.2mm to 0.8mm more specifically can thicker 0.3mm to 0.6mm.In this case, from outside with the shape of light The display information of formula projection dual will not be shown, therefore be applicable to head-up display (HUD).

The thickness T of the second end₁₄₀0.38mm can be less than.Specifically, the thickness T of the second end₁₄₀It can Range in 0.1mm more than and less than 0.38mm, and may be 0.1mm to 0.36mm.The engagement laminated film 100 Not only it can meet the physical characteristic of enough impact resistances, penetration resistance etc. but also can have this relatively thin thickness.

The thickness T of the first end₁₂₀It can be 0.95mm or less.Specifically, the thickness T of the first end₁₂₀ It can be 0.1mm to 0.85mm, and may be 0.1mm to 0.75mm.The engagement laminated film 100 can both meet enough The physical characteristic of impact resistance, penetration resistance etc. can have this relatively thin thickness again.

The engagement laminated film 100 can meet the impact resistance characteristic of Koream Industrial Standard KS L 2007:2008.Institute The assessment for stating impact resistance characteristic is to be carried out after being prepared into laminated glass according to the standard.

The engagement can satisfy Koream Industrial Standard KS L with laminated film 100 on a thickness of the position below 0.65mm The impact resistance characteristic of 2007:2008.

The engagement laminated film 100 can meet the penetration resistance characteristic of Koream Industrial Standard KS L 2007.It is described endurable The assessment of permeability characteristic is to be carried out after being prepared into laminated glass according to the standard.

The engagement laminated film 100 can meet Koream Industrial Standard KS L on a thickness of the part below 0.65mm 2007 penetration resistance characteristic.

The basal layer 300 includes polyvinyl acetal resin.

In addition, the basal layer 300 may include polyvinyl acetal resin and plasticizer.

In addition, the basal layer 300 may include the polyvinyl acetal resin of 60wt% to 76wt%, also may include 70wt% to 76wt%.When including the polyvinyl acetal resin with this range, can be assigned relatively to laminated film 100 High tensile strength and modulus.

Acetyl content suitable for the polyvinyl acetal resin of the basal layer 300 is smaller than 2mol%, specifically For, it can be 0.01mol% to 2mol%.Hydroxyl suitable for the polyvinyl acetal resin of the basal layer 300 contains Amount can be 30mol% or more, specifically, can be 30mol% to 50mol%.

When using the polyvinyl acetal resin with this characteristic, the basal layer 300 both can be with the substrates such as glass Engagement can have mechanical property appropriate again well.

The polyvinyl acetal resin of the basal layer 300 can for using acetaldehyde to the degree of polymerization be 1600 to 3000 it is poly- Vinyl alcohol carries out polyvinyl acetal resin obtained by acetalation, or using acetaldehyde is 1700 to 2500 to the degree of polymerization Polyvinyl alcohol carries out polyvinyl acetal resin obtained by acetalation.It, can be abundant when using this polyvinyl acetal resin Improve the mechanical property of such as penetration resistance.

The polyvinyl acetal resin can be what polyvinyl alcohol was synthesized into acetaldehyde, and the acetaldehyde does not limit its kind Class.Specifically, the acetaldehyde can for selected from by n-butanal, isobutylaldehyde, valeraldehyde, 2- ethyl-butyl aldehyde, n-hexyl aldehyde and it Hybrid resin composition one of group.When using n-butanal as the acetaldehyde, prepared polyvinyl alcohol Acetal resin has the small refractive index characteristic of difference compared with the refractive index of glass, and can have and the engagement between glass etc. The excellent characteristic of power.

On the basis of 300 entirety of basal layer, the basal layer 300 may include the plasticising of 24wt% to 40wt% Agent also may include 24wt% to 30wt%.When the plasticizer for being included is in these ranges, engagement lamination can be assigned Film engaging force appropriate and impact resistance, therefore be excellent.Hereinafter illustrated functional layer 400 is included in the basis In the case where layer 300, the content of the plasticizer refers to containing for the plasticizer in the basal layer 300 other than functional layer 400 Amount.

Specifically, as the plasticizer, can be used selected from by double 2- ethylene capronates (3G8) of triethylene glycol, four sweet The double 2 Ethylbutanoic acid esters (3GH) of two heptanoate of alcohol (4G7), triethylene glycol, triethylene glycol double 2- heptanoates (3G7), adipic acid two Butoxyethoxy ethyl ester (DBEA), butyl carbitol adipate ester (DBEEA), dibutyl sebacate (DBS), adipic acid it is double oneself One of the group of base ester (DHA) and their combination composition, specifically, may include selected from by two -2- ethyl of triethylene glycol One in group that butyrate, two -2 ethyl hexanoic acid of triethylene glycol ester, the positive heptanoate of triethylene glycol two and their combination form Kind, more specifically, the double 2- ethylene capronates (3G8) of triethylene glycol can be used.

The basal layer 300 is characterized in that the glass transition temperature measured by differential scanning calorimetry is 15 DEG C to 25 DEG C, specifically, which is characterized in that glass transition temperature is at 17 DEG C to 20 DEG C.With this glass transition temperature The basal layer 300 of degree can show excellent sound damping at room temperature.

The functional layer 400 may include the polyvinyl acetal resin of 54wt% to 76wt%, also may include 60wt% extremely 70wt%.

Acetyl content in the polyvinyl acetal resin of the functional layer 400 can be 8mol% or more, it is specific and Speech, can be 8mol% to 30mol%.

The polyvinyl acetal resin of the functional layer 400 can for using acetaldehyde to the degree of polymerization be 1200 to 3000 it is poly- Vinyl alcohol carries out polyvinyl acetal resin obtained by acetalation, or using acetaldehyde is 1600 to 2400 to the degree of polymerization Polyvinyl alcohol carries out polyvinyl acetal resin obtained by acetalation.In this case, can be improved optical characteristics and plasticizer it Between compatibility.

The functional layer 400 may include the plasticizer of 24wt% to 46wt%, also may include 30wt% to 40wt%.Work as institute The plasticizer contained in functional layer 400 is stated in this content range, can further improve the sound insulation value of laminated film.

Illustrate to repeat with above-mentioned basal layer 300 about illustrating for the plasticizer, therefore the description thereof will be omitted.

In particular, for the functional layer 400, when using differential scanning calorimetry to measure glass transition temperature, The value of glass transition temperature is at subzero 15 DEG C to 10 DEG C above freezing.In this case, it can be assigned to engagement laminated film 100 There can also be high sound insulation value under cryogenic conditions and within the scope of big temperature with the characteristic of excellent sound insulation value.

The basal layer 300 can have the functional layer 400 in the one side of the basal layer 300, can also be on the basis The inside of layer 300 has the functional layer 400.

When the basal layer 300 is located at the one side of the functional layer 400, the functional layer 400 is located at the basal layer It can be conducive to improve the engaging force of laminated film 100 between 300 and the enhancement layer 500 (referring to Fig. 3).

When the basal layer 300 is located at the inside of the functional layer 400, the basal layer 300 can be in the functional layer 400 shape between first foundation layer 320 and the second basal layer 340.In this case, the thickness gauge of basal layer 300 Calculation is the sum of the thickness of first foundation layer 320 and the thickness of the second basal layer 340 without the thickness including functional layer 400.As this Sample can be improved when being prepared using co-extrusion mode for the functional layer 400 is located at the situation of the inside of the basal layer 300 Convenience on preparation section.

The enhancement layer 500 may include ionomer, pet resin or polyimides Resin.

The ionomer can be adopted as the copolymer comprising olefines repetitive unit and carboxylic acids repetitive unit With containing the ionic compound of metal ion in acidic functionality.

Specifically, the ionomer can be that olefines ionomer more specifically can be with It is to be repeated derived from the alpha-olefin derived repetitive unit of carbon atom 2~4 and α, β vinyl unsaturated carboxylic acid of carbon atom 3~6 The copolymer of unit.As the ionomer can be used with the acidic functionality branch in containing metal from The ionic compound of son.

The ionomer includes that the amount of the olefines repetitive unit is 20wt% to 95wt%, is also possible to 20wt% to 90wt% can also be 40wt% to 95wt%, then can be 40 to 75wt%.In addition, the contained carboxylic acids The amount of repetitive unit can be 5wt% to 80wt%, be also possible to 10wt% to 80wt%, can also be 5wt% to 60wt%, 25wt% be can be again to 60wt%.

As the metal ion, the metal ion of 1 valence, divalent or trivalent can be used, be selected from Na specifically, can be used⁺、 K⁺、Li⁺、Cs⁺、Ag⁺、Hg⁺、Cu⁺、Be²⁺、Mg²⁺、Ca²⁺, Sr²⁺、Ba²⁺、Cu²⁺, Cd²⁺、Hg²⁺、Pb²⁺、Fe²⁺、Co²⁺、Ni²⁺、Zn²⁺、 Al²⁺、Sc³⁺、Fe³⁺、Al³⁺And Yt³⁺One of.Specifically, it is preferable that ground, as the metal ion, can be used selected from by Mg²⁺、Na⁺、Zn²⁺And one of the group of their combination composition.

The ionomer can be the vinyl repetitive unit of carbon atom 2~4 and the ethylene of carbon atom 3~6 The copolymer of class unsaturated carboxylic acid repetitive unit may include the acid branch of 5mol% or more, and the acidity branch can be energy Enough ionic compounds combined with the metal ion.

The crystallinity of the pet resin can be 0% to 80%, or 10% to 70%, it can be 40% to 60% more specifically.Copolymer resin also can be used in the pet resin Ethylene glycol and neopentyl glycol can be used as diol component for the copolymer polyethylene terephthalate in rouge Copolymer.

The polyimide resin is that aromatic dianhydride and aromatic diamine or aromatic diisocyanate are carried out solution It polymerize and resin prepared by polyamic acid derivative and then imidizate is made.Specifically, can be by including biphenyl four The polyamic acid that fragrant acid dianhydride including carboxylic acid dianhydride and the aromatic diamine including p-phenylenediamine are synthesized into Resin is implemented imidizate and is made, and but not limited thereto.

As needed, using the polyvinyl acetal resin, the ionomer, the poly terephthalic acid Each layer of glycol ester resin and the polyimide resin can also be containing selected from by antioxidant, heat stabilizer, ultraviolet light (UV) group of absorbent, ultra-violet stabilizer, infrared ray (IR) absorbent, glass engaging force regulator and their combination composition In additive.

The additive may include at least one layer in the first layer, the second layer, third layer and the 4th layer, pass through packet Containing the additive, such as long durability of thermal stability, photostability of film can be improved and prevent the performance dispersed.

Hindered amine (hindered amine) class or hindered phenol (hindered phenol) can be used in the antioxidant Class.Specifically, in the preparation section of the polyvinyl butyral (PVB) for the process temperature for needing 150 DEG C or more, hindered phenol The antioxidant of class is more highly preferred to.The antioxidants of Hinered phenols can be used for example, German BASF joint-stock company (BASF) Product I RGANOX 1076,1010 etc..

When the adaptability between consideration and antioxidant, phosphite (phosphite) is can be used in the heat stabilizer Type thermal stabilizing agent.The product I RGAFOS 168 for example, German BASF joint-stock company (BASF) can be used.

Japanese card rice spectrum chemical conversion Co., Ltd. (Chemipro KASEI) can be used in the ultraviolet absorbing agent Chemisorb 12, Chemisorb 79, Chemisorb 74, Chemisorb 102, German BASF joint-stock company (BASF) Product Tinuvin 328, Tinuvin 329, Tinuvin 326 etc..German BASF can be used in the ultra-violet stabilizer The Ting Nafen etc. of the product of joint-stock company (BASF).As the infrared absorbent, tin indium oxide (ITO), oxidation can be used The metal salt, epoxy-modified of Mg, K, Na etc. can be used in tin antimony (ATO), Al-Doped ZnO (AZO) etc., glass engaging force regulator Silicone oil or their mixture etc., the utility model is not limited to this.

The engagement laminated film 100 of the utility model provides following laminated film: can be with polyethylene acetyl resin one It uses as individual layer, so that xenogenesis resin has specific shape, therefore can both keep between the material of glass etc. Engaging force etc. can further improve mechanical property again, but also can make thinner.

Although 100 thickness of engagement laminated film is thin but there can be enough intensity, it is suitble to triangular-section or ladder Tee section is used for head-up display.

Although also, the engagement is thin with 100 thickness of laminated film, can have and the existing same above sound-proofing Can, when being suitable for the preparation of light transmission layered product of such as laminated glass, can have sound insulation value, impact resistance simultaneously and wear well Permeability.

At the same time, although the engagement laminated film 100 can have sizable machine in the case where thickness is relatively thin Tool intensity, therefore when being suitable for laminated glass, it can make glass itself that there is thin thickness, and laminated glass light weight can be made Change.

The preparation method of the engagement laminated film of another embodiment according to the present utility model includes: co-extrusion step, including The basal layer formation containing polyvinyl acetal resin is squeezed with composition in basal layer extrusion process and enhancing Layer extrusion forms the enhancement layer containing ionomer, pet resin or polyimide resin The process squeezed with composition；Forming step, the basal layer after the co-extrusion are formed to be formed with composition and enhancement layer and be used Composition is mobile to supply unit (feed block), prepares the engagement laminated film 100 with basal layer 300 and enhancement layer 500, The engagement laminated film 100 has positioned at perpendicular with extrusion direction (direction that prepared engagement laminated film is moved) Direction first end 120 and second end 140, the basal layer 300 is formed as by the basal layer formation composition With the shape gradually increased close to the first end thickness, the enhancement layer 500 is formed by enhancement layer formation with composition For with the shape gradually increased close to the second end thickness.

The point B along the point A and the second end for connecting the first end of engagement laminated film 100 Straight cuts made of cross sectional shape be in the first end thickness T₁₂₀Than the thickness T of the second end₁₄₀Thick three Angular or trapezoidal shape.

The preparation method prepares engagement laminated film 100 as described above by co-extrusion method, can be effectively a large amount of Produce the engagement laminated film 100 with basal layer 300 and enhancement layer 500.

The co-extrusion step may also include to the polyvinyl acetal resin comprising 54wt% to 76wt% and 24wt% extremely The functional layer formation of the plasticizer of 46wt% carries out the process of co-extrusion with composition, and in the forming step, the engagement is used Laminated film 100 can be also formed in the inside of the basal layer 300 or between the enhancement layer 500 and the basal layer 300 Functional layer 400.

The engagement laminated film 100 formed like this can be structure further with functional layer 400, the functional layer 400 are located between the inside or the enhancement layer 500 and the basal layer 300 of the basal layer 300.

The basal layer formation composition, the functional layer formation composition and the enhancement layer formation composition It is respectively provided with the component or each of ingredient contained by the component of basal layer as described above, the component of functional layer and enhancement layer Monomer or oligomer including component also may include as needed solvent etc..

The engagement laminated film 100 formed according to the preparation method has thickness as described above, cross sectional shape, each layer First end and second end in thickness ratio etc., in order to avoid with above illustrate to repeat, omission illustrates.

The light transmission layered product 700 of another embodiment according to the present utility model includes: the first photic zone 200；This is practical new The engagement laminated film 100 of one embodiment of type is located in the described first euphotic one side；And second photic zone 600, it is located at On the engagement laminated film.

First photic zone 200 and second photic zone 600 can be each independently translucent glass or translucency Plastics.

The light transmission layered product 700 is keeping light transmission features possessed by the first photic zone 200 and the second photic zone more than 600 In the case where peer-level, the photic zone of two sides can have due to engaging with the engagement laminated film 100 as peace Characteristic needed for full glass etc., such as impact resistance, penetration resistance.

At the same time, the characteristic of engagement laminated film 100 of the light transmission layered product 700 due to being contained within portion and have There is the physical characteristic appropriate suitable for safety glass, but also has the optics appropriate suitable for head-up display special Property.Specifically, will not be generated when the display information by transmissions such as projectors 800 is projected on the light transmission layered product 700 Because ghost caused by its thickness or angle of reflection or ghost are faint that naked eyes can not almost be perceived.

The light transmission layered product 700 can also have sound damping, when glass (including windshield), the building for being used in automobile Whens object material etc., there is excellent functionality.

The head-up display system 900 of another embodiment according to the present utility model includes light transmission layered product as described above 700 and projector 800 (referring to Fig. 2, Fig. 5).

It is illustrated about the light transmission layered product 700, the engagement laminated film 100, with saying hereinbefore Bright repetition, therefore omit specific narration.

When the light transmission layered product 700 watches front attentively using the windshield or driver for being the vehicles such as automobile Other display devices in the visual field.

The image that the light transmission layered product 700 sends projector 800 is projected and is displayed as no ghost image figure The one dimensional image of picture, this is suitable for being referred to as the display device of the head-up display of head-up display.

Hereinafter, another embodiment to the utility model is described in detail.

Fig. 1 is the shape for the light transmission layered product 700 according to an embodiment of the present invention preparation for illustrating that overlook view arrives Schematic diagram, Fig. 5 is to illustrate that the cross sectional shape of the light transmission layered product 700 prepared according to an embodiment of the present invention and head-up are aobvious Show that the schematic diagram of system 900, Fig. 6 A, Fig. 6 B and Fig. 7 A, Fig. 7 B are respectively to illustrate another embodiment system according to the present utility model The schematic diagram of the cross section structure of standby engagement laminated film 100.Hereinafter, coming further specifically referring to Fig. 5 to Fig. 7 A, Fig. 7 B Bright an embodiment of the present invention.

The engagement laminated film 100 of an embodiment of the present invention be with first end 120 and with the first end The laminated film of the second end 140 of (opposite) in opposite directions, and include: i) basal layer 300, in close to the first end 120 The shape that thickness gradually increases；And ii) enhancement layer 500, in the shape gradually decreased close to 140 thickness of second end Shape.

In the engagement in laminated film 100, the thickness T of the first end₁₂₀Than the thickness T of the second end₁₄₀ Thickness, and along section shape made of the straight cuts of the point B for the point A and the second end for connecting the first end Shape is in polygonal shape.More specifically, the polygon is triangular in shape on the whole or diamond shape, in addition to its bottom surface (bottom surface With top surface) except face in a part of one side can be in curved shape.

Therefore, the wedge shaped shape (wedge-shaped) on the whole of laminated film 100 is used in the engagement, that is, first end Its thickness compared with the second end 140 of end 120 is thicker (referring to Fig. 5).

The cross sectional shape of the laminated film 100 can include: the section of basal layer 300, in the thickness of the first end 120 Spend triangle or trapezoidal shape of the comparable line as bottom surface；The section of enhancement layer 500, in the thickness of the second end 140 Spend triangle or trapezoidal shape of the comparable line as vertex or top surface.

Top surface in the section of the enhancement layer 500 can be in contact with the bottom surface in the section of the basal layer 300.

The enhancement layer 500 is shared one side with the second end 140 and can be increased by first comprising enhancement layer resin Strong layer 520 is formed (referring to Fig. 6 A), enhancement layer with resin be ionomer, pet resin or Polyimide resin.

Also, the enhancement layer 500 and the shared one side of the second end 140, and can include: the first enhancement layer 520, Comprising ionomer, pet resin or polyimide resin as enhancement layer resin； Second enhancement layer 540, between the basal layer 300 and first enhancement layer 520, and by the Pioloform, polyvinyl acetal tree Rouge and the enhancement layer are unevenly mixed with resin (referring to Fig. 6 B).

Top surface in the section of second enhancement layer 540 can be in contact with the bottom surface in the section of the basal layer 300.

Top surface in the section of first enhancement layer 520 can be with the bottom surface phase in the section of second enhancement layer 540 Contact.

The basal layer 300 may also include functional layer 400 on its interior (referring to Fig. 6 A, Fig. 6 B and Fig. 7 A, Fig. 7 B). Specifically, the basal layer 300 may include first foundation layer 320, the functional layer in the one side of the first foundation layer 400 and the second basal layer 340 in the one side of the functional layer.

The basal layer 300 may also include other function layer, specifically, it may include shade band layer etc..

The point B along the point A and the second end for connecting the first end of engagement laminated film 100 Straight cuts made of laminated film cross sectional shape, can triangular in shape or trapezoidal shape, that is, the thickness in the first end T₁₂₀Than the thickness T in the second end₁₄₀It is thick.

In the cross sectional shape of the laminated film, based on layer 300 section triangle or trapezoidal bottom surface length Angle value can be greater than the triangle in the section as enhancement layer 500 or the length value of trapezoidal bottom surface.

In the first end 120, i) functional layer 400 and ii) basal layer other than the functional layer 400 300 thickness proportion can be 1:3 to 1:10.Specifically, in the first end 120, the functional layer 400 in addition to institute The thickness proportion for stating the basal layer 300 except functional layer 400 can be 1:4 to 1:8.

In this case, can be conducive to meet the physical characteristic that engagement laminated film should have simultaneously, that is, the function The engaging force etc. that functional characteristics and the basal layers 300 such as the sound damping that layer 400 has have.

The cross sectional shape of the laminated film 100 is in first end 120, the first face 110, second end 140 and the second face 130 The polygonal shape being formed by connecting, wherein the one end in first face 110 is connected with the first end and the other end and institute Second end is stated to be connected, the one end in second face 130 be connected with the second end and the other end and it is described first end End is connected.In the second end, angle (the second end is formed by with the face for being parallel to second face by first face Hold angle, θ₂) can be 1mrad to 4mrad, or 2mrad to 3mrad, or 1.8mrad to 2.2mrad or 2.65mrad to 2.99mrad.

The cross sectional shape of the laminated film 100 is in first end 120, the first face 110, second end 140 and the second face 130 The polygonal shape being formed by connecting, wherein the one end in first face 110 is connected with the first end and the other end and institute Second end is stated to be connected, the one end in second face 130 be connected with the second end and the other end and it is described first end End is connected.In the first end, angle (the first end is formed by with the face for being parallel to second face by first face Hold angle, θ₁) it can be 0.5mrad to 0.8mrad, or 0.6mrad to 0.7mrad.

This angle can make the laminated film obtain enough machines in the case where minimally using fluoropolymer resin Tool intensity.However, " bending is formed in the one side in the first face or the second face with this angle Part ", causes First Line and the second line to form certain angle when meeting, and the First Line is to constitute first with the first end The line of terminal angular, second line are the lines that second end angle is constituted with the second end.

When the laminated film 100 is engaged with a pair of of glass, this " bending part " is easy to cause residual bubble, and then is easy Lead to the unqualified of laminated glass, as in the utility model as a method of solving this problem, usually in first face In 110 or described second faces 130, formed in part corresponding with second enhancement layer 540 i.e. described " bending part " strong thick The surface of rugosity, it is this to solve the problems, such as.

Specifically, corresponding with the one side of second enhancement layer among first face 110 or second face 130 Part, that is, correcting area P surface roughness can be 30 μm to 90 μm, or 40 μm to 80 μm, can also be 46 μm It to 70 μm, then can be 50 μm to 60 μm.Like this, in the case where correcting area P surface roughness with higher, There's almost no gas bubbles left phenomenon caused by because described in " bending part " in glass engaging process, and can prepare with glass it Between the excellent laminated film of engagement characteristics.

The height H of enhancement layer₅₀₀It can be 1mm to 250mm, or 10mm to 200mm, it can also be for 20mm extremely 180mm, then can be 100mm to 160mm.Most preferably, the height H of the enhancement layer₅₀₀It can be 105mm to 145mm.Increase The height H of strong layer₅₀₀It is in the second end 140 being in contact with the enhancement layer 500 a little to the enhancement layer 500 Distance described in 140 farthest of second end a little the distance between.In this case, due to the presence of enhancement layer, institute The relatively thin part for stating engagement laminated film can also have enough penetration resistances and impact resistance, at the same time it can also make to enhance The light transmission features subtle difference of glass surface caused by the difference of fluoropolymer resin type used in layer and basal layer, to view The influence that open country generates reaches minimum.

In the case where the enhancement layer 500 includes the first enhancement layer 520 and the second enhancement layer 540, as each height H₅₀₀Equal to or more than H₅₂₀With H₅₄₀The sum of.Specifically, the H₅₂₀It can be 1mm to 250mm, or 10mm is extremely 180mm can also be 20mm to 140mm, then can be 100mm to 130mm.Specifically, the H₅₄₀It can be for 0mm extremely 25mm, or 1mm to 20mm can also be 3mm to 16mm, then can be 5mm to 10mm.In H₅₄₀Value is this range In the case where, the influence when part docking combined glass glass of local inclination can be reduced.

Thickness T in the first end₁₂₀It can be than the thickness T of the second end₁₄₀Thick 0.2mm or more, it is specific and Speech, can also thicker 0.2mm to 0.8mm more specifically can thicker 0.3mm to 0.6mm.In this case, from outside The display information projected in the form of light dual will not be shown, therefore be applicable to head-up display.

The thickness T of the second end₁₄₀0.38mm can be less than.Specifically, the thickness T of the second end₁₄₀It can Range in 0.1mm more than and less than 0.38mm, or 0.1mm to 0.36mm.The engagement laminated film 100 both may be used The physical characteristic for meeting enough impact resistances, penetration resistance etc. can have this relatively thin thickness again.

The thickness T of the first end₁₂₀It can be 0.95mm or less.Specifically, the thickness T of the first end₁₂₀ It can be 0.1mm to 0.85mm, or 0.1mm to 0.75mm.The engagement laminated film 100 can both meet enough resistance to The physical characteristic of impact, penetration resistance etc. can have this relatively thin thickness again.

The engagement laminated film 100 can meet Koream Industrial Standard KS L on a thickness of the part below 0.65mm The impact resistance characteristic of 2007:2008.

In addition, the basal layer 300 may include the polyvinyl acetal resin of 60wt% to 76wt%, also may include 70wt% to 76wt%.When including the polyvinyl acetal resin with this range, it can be assigned to laminated film 100 relatively high Tensile strength and modulus.

Acetyl content is smaller than 2mol% suitable for the polyvinyl acetal resin of the basal layer 300, it is specific and Speech, can be 0.01mol% to 2mol%.Hydroxy radical content suitable for the polyvinyl acetal resin of the basal layer 300 It can be 30mol% or more, specifically, can be 30mol% to 50mol%.

The polyvinyl acetal resin can be what polyvinyl alcohol was synthesized into acetaldehyde, and the type of the acetaldehyde is not done It limits.Specifically, the acetaldehyde can for selected from by n-butanal, isobutylaldehyde, valeraldehyde, 2- ethyl-butyl aldehyde, n-hexyl aldehyde and One of the group of their hybrid resin composition.When using n-butanal as the acetaldehyde, prepared polyethylene Acetal resin has the small refractive index characteristic of difference compared with the refractive index of glass, and can have and connecing between glass etc. Excellent characteristic with joint efforts.

On the basis of 300 entirety of basal layer, the basal layer 300 may include the plasticising of 24wt% to 40wt% Agent also may include 24wt% to 30wt%.When the plasticizer for being included is in this range, engagement lamination can be assigned Film engaging force appropriate and impact resistance, therefore be excellent.Hereinafter illustrated functional layer 400 is included in the basis In the case where in layer 300, the content of the plasticizer refers to the plasticizer in the basal layer 300 other than functional layer 400 Content.

Illustrate to repeat with above-mentioned basal layer 300 about illustrating for the plasticizer, therefore omits its narration.

When the basal layer 300 is located at the inside of the functional layer 400, the basal layer 300 can be in the functional layer 400 shape between first foundation layer 320 and the second basal layer 340.In this case, the thickness gauge of basal layer 300 Calculate be first foundation layer 320 thickness and the second basal layer 340 thickness without the thickness including functional layer 400.Like this, For the functional layer 400 is located at the situation of the inside of the basal layer 300, preparation can be improved when preparing using co-extrusion mode Convenience in process.

The enhancement layer 500 may include ionomer, pet resin or polyimides Resin.

Specifically about the ionomer, pet resin or polyimide resin It is bright with above illustrate to repeat, therefore omit its narration.Also, as needed, use the polyvinyl acetal resin, institute Each layer for stating ionomer, the pet resin and the polyimide resin can also contain Selected from being connect by antioxidant, heat stabilizer, ultraviolet light (UV) absorbent, ultra-violet stabilizer, infrared ray (IR) absorbent, glass Additive in the group of resultant force regulator and their combination composition, about illustrating for each additive and saying above Bright repetition, therefore omit its narration.

The preparation method of the engagement laminated film of another embodiment according to the present utility model includes: co-extrusion step, including The basal layer formation containing polyvinyl acetal resin is squeezed with composition in basal layer extrusion process and enhancing Layer extrusion forms the enhancement layer containing ionomer, pet resin or polyimide resin The process squeezed with composition；Forming step, the basal layer after the co-extrusion are formed to be formed with composition and enhancement layer and be used Composition is mobile to supply unit (feed block), prepares the engagement laminated film 100 with basal layer 300 and enhancement layer 500, The engagement has the first end 120 and second end 140 positioned at the direction perpendicular with the direction of extrusion with laminated film 100, The basal layer 300 is containing the basal layer formation composition and shares its one side with the first end and is in close The shape that the first end thickness gradually increases, the enhancement layer 500 is containing enhancement layer formation composition and with described the It shares its one side and in the shape gradually increased close to the second end thickness in two ends.

The point B along the point A and the second end for connecting the first end of engagement laminated film 100 Straight cuts made of cross sectional shape be in the first end thickness T₁₂₀Than the thickness T of the second end₁₄₀Thick is more Side shape shape.

The co-extrusion step may include to the polyvinyl acetal resin comprising 54wt% to 76wt% and 24wt% extremely The functional layer formation of the plasticizer of 46wt% carries out the process of co-extrusion with composition, and in the forming step, the engagement is used Laminated film 100 can have functional layer 400 be located at the basal layer 300 inside structure.

Hereinafter, the embodiments of the present invention are further described referring to attached drawing, so as to the affiliated skill of the utility model Those of ordinary skill in art field can be easy to implement.However, the utility model can be realized in a multitude of different ways, not It is defined in the embodiment illustrated in this text.

Preparation example

Each ingredient used in the examples below is as follows.

First polyvinyl butyral resin: the average degree of polymerization of polyvinyl alcohol be 1700, hydroxy radical content 45mol%, Acetyl content is 1mol%

Second polyvinyl butyral resin: the average degree of polymerization of polyvinyl alcohol be 2400, hydroxy radical content 20mol%, Acetyl content is 11mol%

Plasticizer: double 2- ethylene capronate (the 3G8) (rules of origin: Pu Weilun Chemical Co., Ltd. of triethylene glycol (PROVIRON) product PROVIST 1766)

Ionomer: poly- (ethylene-co- methacrylic acid) salt (rule of origin: SK Creative Company, South Korea)

1) experimental example 1

Embodiment

Basal layer uses the basal layer of the plasticizer of the first polyvinyl butyral resin and 27wt% comprising 73wt% It is formed and uses composition, functional layer uses the function of the plasticizer of the second polyvinyl butyral resin and 35wt% comprising 65wt% Ergosphere, which is formed, uses composition, and enhancement layer uses the enhancement layer formation composition of the ionomer comprising 100wt%, point Co-extrusion is not carried out by extrusion, forms three layers of basal layer, functional layer and enhancement layer etc..

Described three layers mobile to pit block respectively and meet, and is shaped to the embodiment of the structure with Fig. 3 and shape Engagement laminated film.

Comparative example

Compared with the embodiment, other conditions are all the same, but the substitution of the enhancement layer as embodiment, using with reality The identical component of basal layer of example is applied to form the enhancing of the comparative example all the same with the shapes and sizes of the enhancement layer of embodiment Layer, to be prepared for the engagement laminated film of comparative example.

Physical property assessment

The assessment of penetration resistance

According to Koream Industrial Standard KS L 2007, to engaging engagement layer prepared by embodiment and comparative example respectively The penetration resistance of the laminated glass (light transmission layered product) of press mold is assessed.

By the engagement laminated film of the glass of 2.1T (mm) thickness of 300mm × 300mm and Examples and Comparative Examples, with glass Glass-engagement is prepared for layered product with laminated film-glass laminar structure, using vacuum carry out pre-terminated merging carried out degassing and Edge sealing (Edge sealing).Then, master is carried out under the conditions of 150 DEG C of temperature using autoclave (autoclave) to connect It closes 2 hours, and is prepared for physical property assessment sample.

For the physical property assessment sample, under the conditions of 20 DEG C of temperature, fall the steel ball of 2.27kg in Fig. 8 Shown in each region position, and determine the depth (MBH) that test piece is pierced.Wherein, it is denoted as when penetration depth is less than 4m " unqualified ", and while penetrating 4m or more, is denoted as " qualification ".

The assessment of impact resistance

According to Koream Industrial Standard KS L 2007:2008, to engaging engagement prepared by embodiment and comparative example respectively It is assessed with the impact resistance of the laminated glass (light transmission layered product) of laminated film.

Glass and laminated film are prepared for layered product with laminated film-glass laminar structure with glass-engagement, and used Physical property assessment sample has been made with the identical method of method in penetration resistance assessment above.

Low temperature assessment in the following manner carry out: subzero 20 DEG C at a temperature of take care of 4 hours 227g steel ball after, make steel Ball falls to the position of each region shown in Fig. 8 from the height of 9m, when test piece impacted and it is broken make glass disperse or from When the amount for the glass that thin plate is fallen is 15g or more, it is denoted as " unqualified ", however is impacted and test piece is unbroken or glass disperses And the amount of the glass fallen from thin plate be less than 15g when, be denoted as " qualification ".

Room temperature assessment in the following manner carry out: by the steel ball of 227g 40 DEG C at a temperature of take care of 4 hours after, from 10m Height drop to the position of each region shown in Fig. 8, when because by the test piece impacted it is broken due to so that glass is dispersed or from thin It is unbroken by the test piece impacted or glass flies with " unqualified " label in the case that the amount for the glass that plate is fallen is 15g or more Dissipate and the amount of glass that is fallen from thin plate be less than 15g in the case where, marked with " qualification ".

The assessment of sound insulation value

By the glass of 2.1T (mm) thickness of 300mm × 25mm respectively with the engagement laminated film of Examples and Comparative Examples with Glass-engagement laminated film-glass laminar structure is realized with temperature heating pressurization 15 minutes of 130 DEG C in laminating machine and is connect It closes, to prepare test piece, distinguishes aging (aging) in 0 DEG C, 20 DEG C or 30 DEG C of thermostatic chamber later 1 hour.

It is vibrated using damping test with vibration machine to apply to the test piece, by vibration characteristics obtained in machinery Amplify in impedance amplifier, Fast Fourier Transform (FFT, fast Fourier is utilized to rumble spectrum obtained Transform) spectrum analyzer is analyzed, and depicts curve graph.Using 1dB method to the derived curve graph meter Calculate loss coefficient (Loss factor) of the frequency near 2000Hz to 4000Hz.

Loss coefficient is higher, then sound insulation value is more excellent, and common acoustic film is in 20 DEG C of at a temperature of loss coefficient 0.35.Assessment result, loss coefficient are denoted as " qualification " at 0.35 or more, and when less than 0.35, it is denoted as " unqualified ".

Whether there is or not the assessments of dual imaging

The glass that keeps out the wind will be used as with the laminated glass (light transmission layered product) of penetration resistance test same procedure preparation above Glass is placed on windshield position, after projector is arranged in lower part, Xiang Suoshu laminated glass Projection Display information, and After showing information on predetermined position, with the naked eye have evaluated whether there is or not dual imaging, when not perceiving dual imaging, " unqualified " is evaluated as when being evaluated as " qualification ", and perceiving dual imaging.

Average thickness assessment

By film thickness distribution (X-Ray), after continuous detection real-time thickness data, it is shown that its average value.

Whether bubble is generated

Glass engagement test piece is prepared, test piece is engaged with the entire area including correcting area with glass, is commented Whether the glass after estimating engagement remains bubble, when not remaining bubble, is evaluated as "○", and remains bubble but bubble When maximum gauge is 50 μm or less, it is evaluated as " △ ", when remaining bubble and its maximum gauge is greater than 50 μm, is evaluated as " X ".

Also, 130 DEG C at a temperature of place test piece in 2 hours after, have evaluated layer in method identical with the method Whether bubble is remained in combined glass glass.

Physical property assessment result

The result that the assessment has been carried out using comparative example and the sample of embodiment is shown in following table 1.

Table 1

Referring to the table 1 as a result, the laminated glass of the laminated glass and comparative example of embodiment sound insulation value assessment and Dual imaging assessment result is excellent, but penetration resistance and impact resistance part show larger difference.

In particular, when the sample of comparative example is the wedge shaped shape in section such as triangle or trapezoidal film, in characteristic, average thickness Degree is measured as 600 μm and 300 μm of 2-1 to 2-4,3-1 and presents significantly to the impact resistance and penetration resistance in the region 3-4 Decline as a result, this result indicates, if not having enough impact resistances in the thin part of thickness whens being used as tempered glass etc. Property and penetration resistance.

Conversely, the sample of embodiment divides not only in the region 1-1 to 1-4 that average thickness is 750 μm, or in average thickness The 2-1 to 2-4,3-1 for not being measured as 600 μm and 300 μm is assessed as impact resistance and penetration resistance is excellent to the region 3-4 It is different, this is because used enhancement layer in the present invention, so not only thickness is thin, but also have enough shock resistances, Penetration resistance energy, and sound insulation value and whether have and be assessed as standard value or more in dual imaging project.

2) experimental example 2

Embodiment

Basal layer uses the basal layer of the plasticizer of the first polyvinyl butyral resin and 27wt% comprising 73wt% It is formed and uses composition, functional layer uses the function of the plasticizer of the second polyvinyl butyral resin and 35wt% comprising 65wt% Ergosphere, which is formed, uses composition, and enhancement layer uses the enhancement layer formation composition of the ionomer comprising 100wt%, point Co-extrusion is not carried out by extrusion, forms basal layer, functional layer and enhancement layer.

Described three layers mobile to pit block respectively and meet, and is shaped to have and is equivalent to the structure of Fig. 3 and the reality of shape Apply the engagement laminated film of example.The correcting area p-shaped of engagement laminated film is formed by the one side of the second enhancement layer, and is assigned 40 μm to 70 μm of surface roughness is given.

Comparative example

Compared with the embodiment, other conditions are all the same, but the substitution of the enhancement layer as embodiment, using with reality The identical component of basal layer of example is applied to be formed as the enhancing of comparative example identical with the shapes and sizes of the enhancement layer of embodiment Layer, to be prepared for the engagement laminated film of comparative example.

Physical property assessment result

The method of physical property assessment is identical as above-mentioned experimental example 1, and its result is shown in following table 2.

Table 2

Referring to the table 2 as a result, the laminated glass of the laminated glass and comparative example of embodiment sound insulation value assessment and Dual imaging assessment result is excellent, but penetration resistance and impact resistance part show larger difference.

Xenogenesis resin reinforced layers are made to be located at the engagement laminated film of the utility model of second end, in enhancement layer and basis It there may be one because of caused by the difference of the thickness increment rate of the enhancement layer and the basal layer in the part that layer is in contact Kind " bending part ", when this part is in contact with smooth glass surface, it is possible to there is bubble in-between, but in this reality In novel, the bending part is corrected by setting correcting area in the bending part and improving surface roughness, with This is this to solve the problems, such as, and experiments prove that really there is no bubbles when glass engagement.

More than, the preferred embodiment about the utility model is described in detail, but the utility model is practical new Type is claimed range and is not limited to this, but the utility model person of an ordinary skill in the technical field utilizes by hereinafter Utility model be claimed range defined in the utility model basic conception come the various modifications carried out and improvement side Range is claimed in the utility model that formula also belongs to the utility model.

Claims

1. a kind of engagement laminated film, has first end and the second end opposite with the first end, wherein

Include:

Basal layer, in the shape gradually increased with the close first end thickness, and

Enhancement layer, in the shape gradually increased close to the second end thickness；

Laminated film section made of some straight cuts of any with the second end along the connection first end Shape, in the first end thickness value be greater than the second end thickness value triangle or trapezoidal shape.

2. engagement laminated film according to claim 1, wherein

The cross sectional shape of the laminated film includes: the section of basal layer, in make with the comparable line of the thickness of the first end For the triangle or trapezoidal shape of bottom surface；The section of enhancement layer, in using with the thickness of the second end comparable line the bottom of as The triangle or trapezoidal shape in face.

3. engagement laminated film according to claim 1, wherein

The basal layer further includes the functional layer with sound insulation function,

The functional layer is located at the inside of the basal layer and not direct contacts with the enhancement layer or the functional layer and institute State basal layer share in the exterior face of the basal layer and directly with the enhancement layer while be in contact.

4. it is according to claim 1 engagement use laminated film, wherein in the first end, the basal layer with it is described The thickness proportion of enhancement layer is 10:0 to 10:2.

5. it is according to claim 1 engagement use laminated film, wherein in the second end, the enhancement layer with it is described The thickness proportion of basal layer is 10:0 to 10:4.

6. it is according to claim 3 engagement use laminated film, wherein in the first end, the functional layer in addition to The thickness proportion of the basal layer of the functional layer is 1:3 to 1:10.

7. engagement laminated film according to claim 1, wherein the thickness of the second end is less than 0.38mm.

8. it is according to claim 1 engagement use laminated film, wherein the first end with a thickness of 0.95mm or less.

9. a kind of engagement laminated film, has first end and the second end opposite with the first end, wherein

Include:

Basal layer shares its one side with the first end, and in the shape gradually increased close to the first end thickness Shape；And

Enhancement layer shares its one side with the second end, and in the shape gradually decreased close to the second end thickness Shape,

Along section for connecting laminated film made of some straight cuts of any with the second end of the first end Face shape is greater than the polygonal shape of the thickness value of the second end in the thickness value of the first end.

10. engagement laminated film according to claim 9, wherein the basal layer further includes being located at the basal layer The internal functional layer with sound insulation function.

11. engagement laminated film according to claim 9, wherein the cross sectional shape of the laminated film is in by described first The polygonal shape that end, the first face, the second end and the second face are formed by connecting, the one end in first face and described the One end is connected and the other end is connected with the second end, and the one end in second face is connected with the second end And the other end is connected with the first end, and in the second end, first face and the face for being parallel to second face It is formed by angle (θ₂) it is 1 milliradian to 4 milliradians.

12. engagement laminated film according to claim 9, wherein the cross sectional shape of the laminated film is in by described first The polygonal shape that end, the first face, the second end and the second face are formed by connecting, the one end in first face and described the One end is connected and the other end is connected with the second end, and the one end in second face is connected with the second end It connects and the other end is connected with the first end, in the first end, first face and be parallel to second face Face is formed by angle (θ₁) it is 0.5 milliradian to 0.8 milliradian.

13. engagement laminated film according to claim 11 or 12, wherein the cross sectional shape of the laminated film is included in institute The correcting area (P) in the one side in the first face and second face with curved shape is stated, the surface of the correcting area is thick Rugosity is 30 μm to 90 μm.

14. engagement laminated film according to claim 9, wherein the height (H of enhancement layer₅₀₀) it is 1mm to 250mm, institute The height for stating enhancement layer is in the second end being in contact with the enhancement layer a little to institute at a distance from the enhancement layer State the distance between any of second end farthest.

15. engagement laminated film according to claim 9, wherein the thickness of the second end is less than 0.38mm.

16. engagement laminated film according to claim 9, wherein the thickness of the first end is than the second end Thickness thickness 0.2mm or more.

17. a kind of light transmission layered product, comprising:

First photic zone；

Engagement laminated film described in claim 1 or 9 is located in the described first euphotic one side；And

Second photic zone is located on the engagement laminated film.