KR20160031575A - Light-permeability and heat-interception film manufacture method, that's film - Google Patents
Light-permeability and heat-interception film manufacture method, that's film Download PDFInfo
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- KR20160031575A KR20160031575A KR1020140120793A KR20140120793A KR20160031575A KR 20160031575 A KR20160031575 A KR 20160031575A KR 1020140120793 A KR1020140120793 A KR 1020140120793A KR 20140120793 A KR20140120793 A KR 20140120793A KR 20160031575 A KR20160031575 A KR 20160031575A
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- film
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- amorphous polymer
- extrusion
- die
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- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 53
- 238000003475 lamination Methods 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 68
- -1 polyethylene terephthalate Polymers 0.000 claims description 37
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 35
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 35
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 34
- 229920006125 amorphous polymer Polymers 0.000 claims description 32
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 28
- 229920000515 polycarbonate Polymers 0.000 claims description 25
- 239000004417 polycarbonate Substances 0.000 claims description 25
- 239000002562 thickening agent Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 5
- 229920008790 Amorphous Polyethylene terephthalate Polymers 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 claims description 3
- 238000007666 vacuum forming Methods 0.000 claims description 3
- 239000004970 Chain extender Substances 0.000 claims description 2
- 229920005692 JONCRYL® Polymers 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract 3
- 239000010408 film Substances 0.000 description 119
- 238000002834 transmittance Methods 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 10
- 238000004049 embossing Methods 0.000 description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 6
- 229920002554 vinyl polymer Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000001953 sensory effect Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009751 slip forming Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 229920006127 amorphous resin Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
Images
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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
The present invention relates to a film having excellent light transmittance and excellent heat shielding property. It is an object of the present invention to provide a film having excellent light transmittance and thermal insulation effect, A film production method and a film produced therefrom.
Generally, a heat-insulating film, that is, an air-cap sheet is widely used as a packaging material. The air-cap sheet has a structure in which an air layer is formed by passing a double film between a forming roller and a balancing roller, A thin film is formed by using a resin having a low cristallinity property such as polyethylene or polypropylene. Since such a resin is relatively economical and has excellent moldability (air structure) and adhesiveness to be.
Until now, the amorphous resin has to be processed at a high temperature usually in order to make such a film structure of a thin film. At this time, due to a drastic decrease in melt strength at a high temperature, There are difficulties in doing this.
Air caps sheets or air cap films made of high density polyethylene, low density polyethylene and polypropylene, which are currently in use, have no problem as simple packaging materials even if the transparency is remarkably reduced, but they are not used for agricultural vinyl houses requiring light transmittance However, since the light transmittance is remarkably lowered, there is a problem that it is not possible to identify the external object when using it as a window insulating film. Therefore, it is inconvenient to remove the film after the lapse of the winter season.
With reference to this conventional technique,
Patent application No. 10-2012-0121871 The technical point of the 'method for manufacturing a sunlight heat reflecting air cap sheet for a window'
A heat-reflective air-cap sheet for a window, comprising a transparent vinyl flat sheet and an embossed sheet continuously formed on the flat sheet at a constant interval of embossing,
Wherein the reflective sheet is bonded to the embossed sheet so that sunlight is reflected from the flat sheet side.
Claim 2
The method according to
Wherein the flat sheet is made of a material thinner than the reflective sheet,
Wherein the reflective sheet is bonded to one side of the embossed side or the opposite side of the embossed sheet.
A step of forming an embossing sheet by supplying a transparent vinyl resin so that the embossing roller is contacted with a rotating side of an embossing circular roller in which embossing such as a circle, a square, or a rectangle is continuously formed; A step of supplying a reflective sheet to be in contact with the circular roller,
A step of bringing the reflective sheet into close contact with the embossing circular roller by a planar circular roller while the transparent vinyl flat sheet is vacuum-adsorbed by the embossing circular roller,
Supplying a transparent vinyl resin for shaping a thin flat sheet to a side to which the embossing sheet and the reflective sheet are joined and not to which the reflective sheet is adhered,
And a step of bonding the thin sheet to a side to which the embossing sheet and the reflection sheet are joined so that the reflection sheet is not bonded, comprising the steps of:
The above-mentioned prior art has a problem in that it is difficult to discriminate an external object due to blocking or impermeability of sunlight even when used in windows or the like because it is impossible to use for agricultural purposes such as cultivation of crops, I have it.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an amorphous polyethylene terephthalate glycol, polycarbonate, amorphous polyethylene terephthalate, nylon, polystyrene, styrene acrylonitrile copolymer In order to improve the production and molding of thin films using polycarbonate, polyethylene terephthalate glycol (PETG) with high elongation and high tensile strength, In order to improve the transparency and the light transmittance while maintaining the adiabatic effect, it is necessary to add a thickener (BASF, JONCRYL ADR-4368-C POLYMERIC CHAIN EXTENDER ADR-4370) And the energy efficiency due to thermal insulation Which is suitable for use as a thermal barrier film for agricultural greenhouses and windows, by producing a film which reduces the damage caused by winter season by improving the load-neutralization property, and to provide a film produced therefrom having excellent light transmittance and heat shielding property SUMMARY OF THE INVENTION
According to an aspect of the present invention,
"A first film forming step of extruding a film of an amorphous polymer PETG (polyethylene terephthalate glycol) or polycarbonate in a first extrusion die at a die temperature of 290 ° C. and an average thickness of 0.02 mm, A second film forming step of extruding PETG (polyethylene terephthalate glycol) or polycarbonate into a second extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm; (PET) (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, is extruded from a third extrusion die at a die temperature of 270 DEG C to form a third extrusion die And a second heat lamination step of thermally lapping the laminated film and the third film in the first heat lamination step And a method of manufacturing a film excellent in light transmittance and thermal shock resistance,
0.2 parts by weight of a thickener is added to 100 parts by weight of PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, in each of the first film forming step, the second film forming step and the third film forming step Which is excellent in light transmittance and thermal shock resistance,
A first film for extruding a film of amorphous polymer PETG (polyethylene terephthalate glycol) or polycarbonate in a first extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm; A second film for extruding a PETG (polyethylene terephthalate glycol) or polycarbonate film, which is an amorphous polymer, in a second extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm and a second film for extruding a film of amorphous polymer PETG Terephthalate glycol) or polycarbonate in a third extrusion die at a die temperature of 270 DEG C, and a third film extruding a second film and a third film on both sides of the first film, A film having excellent light transmittance and heat shielding property,
0.2 part by weight of a thickener was added to 100 parts by weight of PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, to form a first film for extrusion molding the film at a die temperature of 290 DEG C and an average thickness of 0.02 mm in the first extrusion die And 0.2 parts by weight of a thickener were added to 100 parts by weight of PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, on one side of the first film, and the second extrusion die was heated at a die temperature of 290 DEG C to an average thickness of 0.02 mm And 0.2 part by weight of a thickener was added to 100 parts by weight of PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, to form a film at a die temperature of 270 DEG C in the third extrusion die. A third film to be extrusion-molded, and a second film and a third film on both sides of the first film, A film having excellent light transmittance and heat shielding property, which is characterized by being formed by thermally bonding a thermoplastic resin film and a thermoplastic resin film to each other.
The present invention having such a constitution as described above is able to obtain moldability even in forming a thin film at a high temperature while having the same transparency, that is, high light transmittance by adding a thickening agent to an amorphous polymer having excellent transparency. Specifically, A thickening agent is added to the phthalate glycol or polycarbonate to form a first adhesive layer and a second adhesive layer to form a first adhesive layer and a second adhesive layer, It is possible to produce a film having a three-layer structure including an air layer and having excellent transparency and having an excellent heat insulating effect by bonding again with the 3-layer film. Therefore, as described above, by using the amorphous polymer having the thickener added thereto, The film with a thickness of 2 mm is manufactured with a difference in temperature from the outside It can exert a heat insulating effect so significantly it appears to flow over.
While the present invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that various changes and modifications may be possible without departing from the scope of the invention.
1 is a flow chart of a method for producing a film having excellent light transmission and heat shielding properties according to the present invention,
2 is a cross-sectional view of a film having excellent light transmission and heat shielding properties according to the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, specific structures of the present invention will be described in detail with reference to Examples and Comparative Examples with reference to the drawings.
FIG. 1 is a flow chart of a method for manufacturing a film having excellent light transmission and heat shielding according to the present invention, and FIG. 2 is a sectional view of a film having excellent light transmission and heat shielding properties according to the present invention.
[First Film Forming Step]
In this step, PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, is extruded in a first extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm.
[Second Film Forming Step]
PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, is extruded in a second extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm.
[First Column Lapping Step]
The second film is subjected to vacuum molding and heat-joining with the first film, that is, by melt bonding.
[Third film forming step]
(PET) (polyethylene terephthalate glycol) or polycarbonate which is an amorphous polymer is extruded in a third extrusion die at a die temperature of 270 占 폚.
[Second Column Lapping Step]
The step of thermally laminating the laminated film and the third film in the first heat lamination step, that is, to cause the melt adhesion.
Preferably, 0.2 parts by weight of a thickener is added to 100 parts by weight of PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, in each of the first film forming step, the second film forming step and the third film forming step .
As shown in FIG. 2, the film of the present invention, which is excellent in light transmittance and heat shielding properties,
A
(PET) (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, is formed on one side of the first film by a second extrusion die at a die temperature of 290 ° C and an average thickness of 0.02 mm, )and,
A
(2) and a third film (3) on both sides of the first film (1) by heat bonding or melt bonding,
Preferably, 0.2 parts by weight of a thickener is added to 100 parts by weight of PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, to extrude the film at a die temperature of 290 DEG C and an average thickness of 0.02 mm in the first extrusion die A first film (1)
0.2 parts by weight of a thickener was added to 100 parts by weight of PETG (polyethylene terephthalate glycol) or polycarbonate, which is an amorphous polymer, on one side of the first film, and the film was extruded in a second extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm A second film (2) for extrusion molding,
A
(2) and a third film (3) on both sides of the first film (1).
The graph showing the results of the sensory test of the light transmittance and the experimental results of the heat shielding effect of the embodiment of the present invention and the conventional film, that is, the comparative example of polyethylene, will be described as follows.
First, referring to an embodiment of the present invention,
[Example 1]
0.2 part by weight of a thickener was added to 100 parts by weight of PETG (polyethylene terephthalate glycol) to form a first film at a die temperature of 290 DEG C and an average thickness of 0.02 mm in a first extrusion dice. 100 parts by weight of PETG (polyethylene terephthalate glycol) And 0.2 part by weight of a thickener were added to form a second film by extrusion molding the film at a die temperature of 290 DEG C and an average thickness of 0.02 mm in the second extrusion die to form the second film by vacuum forming and heat- After thermally lapping, 0.2 part by weight of a thickener was added to 100 parts by weight of PETG (polyethylene terephthalate glycol) to form a third film extruding the film at a die temperature of 270 DEG C in a third extrusion die, 1 < / RTI > film and the second and third films.
[Example 1-1]
100 parts by weight of PETG (polyethylene terephthalate glycol) was molded in a first extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm, and 100 parts by weight of PETG (polyethylene terephthalate glycol) was extruded at a die temperature of 290 (PET) extruded at an average thickness of 0.02 mm and vacuum-formed the second film and thermally lapped with the first film. Then, 100 g of PETG (polyethylene terephthalate glycol) A third film extruded from a third extrusion die at a die temperature of 270 캜 was formed, and then the first film-laminated first film, the second film and the third film were heat-laminated.
[Example 2]
0.2 part by weight of a thickener was added to 100 parts by weight of polycarbonate to form a first film having an average thickness of 0.02 mm at a die temperature of 290 DEG C in a first extrusion dice and a thickener 0.2 By weight of the first extrusion die to form a second film by extrusion molding the film at a die temperature of 290 캜 and an average thickness of 0.02 mm in the second extrusion die to form the second film by vacuum forming and heat- Then, 0.2 part by weight of a thickener was added to 100 parts by weight of PETG (polyethylene terephthalate glycol) to form a third film for extrusion molding the film at a die temperature of 270 DEG C in the third extrusion die, And the second film and the third film were thermally lapped.
[Example 2-1]
100 parts by weight of polycarbonate was molded in a first extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm and 100 parts by weight of PETG (polyethylene terephthalate glycol) was extruded at a die temperature of 290 DEG C A second film is formed by extrusion molding the film to an average thickness of 0.02 mm. The second film is vacuum-formed and thermally lapped with the first film. Then, 100 parts by weight of PETG (polyethylene terephthalate glycol) 3 extrusion die at a die temperature of 270 DEG C, and then heat-joining the first heat-laminated first film, the second film and the third film.
In the case of the other Comparative Example 1, low-density polyethylene was used as a constituent component,
In the case of Comparative Example 2, it is a polyethylene heat-shrinkable film that is in circulation, and in Comparative Example 3, it is a commercially available polyethylene agricultural film (for a vinyl house) in circulation.
Table 1 shows the sensibility of the light transmittance of the films applied in Examples 1 to 2-1 of the present invention and Comparative Examples 1 to 3 which are conventional films.
As described above, Examples 1 and 2 of the present invention are very excellent, and the results of ordinary sensory tests are shown in Examples 1-1 and 2-1. However, in the case of existing films, a poor sensory test is performed on the light transmittance have.
On the other hand, the films applied in Examples 1 to 2-1 of the present invention and Comparative Examples 1 to 3, which are conventional films, were used as the films used in the examples in the Kubic Angles having a length of 25 cm on one side The result of the heat shielding effect is shown in the
As shown in the
1: first film 2: second film
3: Third film
Claims (6)
A second film forming step of extruding the amorphous polymer in a second extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm,
A first heat lamination step of vacuum-forming the second film and heat-joining the first film with the first film;
A third film forming step of extruding the amorphous polymer from the third extrusion die at a die temperature of 270 DEG C,
And a second heat lamination step of thermally lapping the laminated film and the third film in the first heat lamination step.
Wherein 0.2 parts by weight of a thickener is added to 100 parts by weight of the amorphous polymer in each of the first film forming step, the second film forming step and the third film forming step.
A second film for extruding an amorphous polymer on one side of the first film, a second extrusion die for film extrusion molding at a die temperature of 290 DEG C and an average thickness of 0.02 mm,
A third film for extruding the amorphous polymer from the third extrusion die at a die temperature of 270 DEG C,
Wherein the second film and the third film are thermally joined to both sides of the first film.
0.2 parts by weight of a thickener was added to 100 parts by weight of the amorphous polymer to form a first film for extrusion molding the film at a die temperature of 290 DEG C and an average thickness of 0.02 mm in the first extrusion die,
A second film for extruding a film in a second extrusion die at a die temperature of 290 DEG C and an average thickness of 0.02 mm by adding 0.2 part by weight of a thickener to 100 parts by weight of the amorphous polymer on one side of the first film;
0.2 part by weight of a thickener was added to 100 parts by weight of the amorphous polymer, and a third film extruded from the third extrusion die at a die temperature of 270 DEG C,
Wherein the second film and the third film are thermally joined to both sides of the first film.
Wherein the thickener is a BASF JONCRYL ADR-4368-C POLYMERIC CHAIN EXTENDER ADR-4370.
Wherein the amorphous polymer is selected from the group consisting of PETG (polyethylene terephthalate glycol), polycarbonate, polyethylene terephthalate glycol, amorphous polyethylene terephthalate, nylon, polystyrene, and styrene acrylonitrile copolymer (SAN) A film excellent in light transmission and heat shielding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140120793A KR20160031575A (en) | 2014-09-12 | 2014-09-12 | Light-permeability and heat-interception film manufacture method, that's film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140120793A KR20160031575A (en) | 2014-09-12 | 2014-09-12 | Light-permeability and heat-interception film manufacture method, that's film |
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| Publication Number | Publication Date |
|---|---|
| KR20160031575A true KR20160031575A (en) | 2016-03-23 |
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ID=55644993
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140120793A KR20160031575A (en) | 2014-09-12 | 2014-09-12 | Light-permeability and heat-interception film manufacture method, that's film |
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| Country | Link |
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| KR (1) | KR20160031575A (en) |
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2014
- 2014-09-12 KR KR1020140120793A patent/KR20160031575A/en not_active Application Discontinuation
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| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |