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公开(公告)号：WO2019146931A1
公开(公告)日：2019-08-01
申请号：PCT/KR2019/000207
申请日：2019-01-07
Applicant: 도레이첨단소재 주식회사
Abstract: 본 발명은 범용적으로 사용되는 폴레에스테르 필름인 폴리에틸렌테레프탈레이트(PET)에 굴절율 차이가 나지 않는 입자를 사용하여 필름을 제조함으로써 1.5% 이하의 헤이즈 및 육안 상 시인이 되지 않는 입자로 고투명성을 가져 광학용 용도로 적합하고, 4nm 이상의 조도를 형성하여 권취성을 향상시킬 수 있는 광학용 고투명 필름을 제공할 수 있다.
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公开(公告)号：KR1020160103413A
公开(公告)日：2016-09-01
申请号：KR1020150025885
申请日：2015-02-24
Applicant: 도레이첨단소재 주식회사
CPC classification number: C08J5/18 , B32B27/08 , B32B27/36 , B32B37/06 , C08J7/042 , C08J2367/00 , C08K3/013 , C08L67/00
Abstract: 본발명은필름표면의굴곡을극대화함으로써저광택을달성하고결점시인성을낮추며휘도무라를억제하고, 도광판과의밀착성결점(Wet Out) 현상과반사판의갈림현상을방지할수 있고, 코팅공정등의후가공시 코팅층과의부착력을상승시킬수 있는저광택백색폴리에스테르필름및 이의제조방법과이를이용한반사시트에관한것이다.
Abstract translation: 本发明涉及一种低光泽的白色聚酯薄膜及其制造方法以及使用该聚酯薄膜的反射片。 低光泽的白色聚酯薄膜通过使膜表面的曲线最大化而达到低光泽，降低缺陷可见度，同时抑制亮度不均匀，可以防止导光板的湿润现象和反射板的分割现象，并且可以增加 当后处理如涂布过程时与涂层粘合。
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公开(公告)号：KR1020160043277A
公开(公告)日：2016-04-21
申请号：KR1020140137402
申请日：2014-10-13
Applicant: 도레이첨단소재 주식회사
Abstract: 본발명은백색폴리에스테르필름과이의제조방법및 이를이용한반사시트에관한것으로서, 보다상세하게는폴리에스테르와비상용성인유기입자의균일성, 유기입자의토출전 단관내 체류시간및 연신배율과연신후 열고정온도를조절하여필름중앙부의공극의균일도를높여양호한광특성을유지하면서제막안정성을향상시킬수 있는백색폴리에스테르필름과이의제조방법및 이를이용한반사시트에관한것이다.
Abstract translation: 本发明涉及白色聚酯薄膜及其制造方法以及使用该聚酯薄膜的反射片。 更具体地，本发明涉及能够在保持良好的光学性能的同时提高膜稳定性的白色聚酯膜。 为此，受控的是与聚酯不相容的有机颗粒的均匀性，在排出有机颗粒之前在短管中的滞留时间，拉伸比和拉伸后的热定型温度，从而增加孔的均匀性 在电影中心部分。
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公开(公告)号：KR101577367B1
公开(公告)日：2015-12-15
申请号：KR1020130141745
申请日：2013-11-20
Applicant: 도레이첨단소재 주식회사
Abstract: 본발명은치수안정성이향상된백색폴리에스테르필름및 이를이용한반사시트에관한것으로서, 보다상세하게는액정디스플레이용면광원으로사용되는백색폴리에스테르필름에있어서, 필름중앙부에기공이없는투명한필름층을도입하여열수축율을개선함과동시에가운데층의두께를조절하여필름의강성및 양호한광특성을구비한치수안정성이향상된백색폴리에스테르필름및 이를이용한반사시트에관한것이다.
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Patent Agency Ranking
公开(公告)号：KR1020150058722A
公开(公告)日：2015-05-29
申请号：KR1020130141745
申请日：2013-11-20
Applicant: 도레이첨단소재 주식회사
Abstract: 본발명은치수안정성이향상된백색폴리에스테르필름및 이를이용한반사시트에관한것으로서, 보다상세하게는액정디스플레이용면광원으로사용되는백색폴리에스테르필름에있어서, 필름중앙부에기공이없는투명한필름층을도입하여열수축율을개선함과동시에가운데층의두께를조절하여필름의강성및 양호한광특성을구비한치수안정성이향상된백색폴리에스테르필름및 이를이용한반사시트에관한것이다.
Abstract translation: 本发明涉及一种具有增强的尺寸稳定性的白色聚酯薄膜以及使用该白色聚酯薄膜的反射片。 更具体地，白色聚酯膜用作液晶显示装置的平面光源。 将没有孔的透明膜层插入到膜的中心部分。 因此，白色聚酯膜的热收缩率降低。 同时，调节中间层的厚度，以提供白色聚酯薄膜的强度和适当的光特性。
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公开(公告)号：KR1020140080611A
公开(公告)日：2014-07-01
申请号：KR1020120144671
申请日：2012-12-12
Applicant: 도레이첨단소재 주식회사
Abstract: The present invention relates to a high strength white multilayer polyester film and a reflective sheet using the same. More specifically, the strength of the film is reinforced, shielding properties are improved, and micropores are formed in the film, so that the film has excellent optical properties. To this end, the high strength white multilayer polyester film according to the present invention consists of a two-layered structure having a surface layer (A layer) and a pore-containing layer (B layer) or of a three-layered structure having a surface layer (A layer), a pore-containing layer (B layer), and another surface layer (A layer). The surface layer (A layer) contains nanoclay, and a film has strength of 2.0-10.0 m N/m.
Abstract translation: 本发明涉及一种高强度白色多层聚酯薄膜和使用其的反光片。 更具体地说，增强膜的强度，提高了屏蔽性能，并且在膜中形成微孔，使得该膜具有优异的光学性能。 为此，根据本发明的高强度白色多层聚酯膜由具有表层（A层）和含孔层（B层）或三层结构的双层结构构成，具有 表面层（A层），含孔层（B层）和另一表面层（A层）。 表面层（A层）含有纳米粘土，膜的强度为2.0-10.0μmN / m。
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8.发明公开
公开(公告)号：KR1020130083736A
公开(公告)日：2013-07-23
申请号：KR1020120004528
申请日：2012-01-13
Applicant: 도레이첨단소재 주식회사
Abstract: PURPOSE: A manufacturing method of white laminated polyester film, a white laminated polyester film manufactured thereof and a reflective sheet using the same are provided to enhance the surface roughness (Ra) of the film which obtained from inducing the coherence of the organic particle with a long residence time to induce the diffuse reflection and have the effect of lowering the glossiness of film. CONSTITUTION: A manufacturing method of white laminated polyester film comprises the first step that manufactures the non-stretched sheet by coextruding the material composition which respectively includes the incompatible organic particle and white inorganic particle to the polyester resin through an extruder to mold on the third-layered lamination sheet of A / B / A form, the second step that cools the molded non-stretched sheet, the third step that manufactures a single shaft stretched film by stretching the cooled non-stretched sheet with a single shaft, the forth step of manufacturing biaxial stretched film by stretching the stretched sheet in a biaxial, and the fifth step of heat-treating the biaxial extended film.
Abstract translation: 目的：提供白色层压聚酯薄膜的制造方法，由其制造的白色层叠聚酯薄膜和使用该层叠聚酯薄膜的反射片，以增强由有机颗粒的相干性引起的膜的表面粗糙度（Ra） 长的停留时间以诱导漫反射并具有降低膜光泽度的效果。 构成：白色层压聚酯薄膜的制造方法包括通过挤出机将分别包含不相容性有机颗粒和白色无机颗粒的材料组合物共挤出成型至第三层而制造未拉伸片材的第一步骤， A / B / A形式的层压层压片，第二步骤，冷却未拉伸模塑的片材;第三步骤，通过用单轴拉伸冷却的未拉伸片材制造单轴拉伸薄膜;第四步骤 通过双轴拉伸拉伸片材制造双轴拉伸膜，以及对双轴延伸膜进行热处理的第五步骤。
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公开(公告)号：KR1020140023473A
公开(公告)日：2014-02-27
申请号：KR1020120089256
申请日：2012-08-16
Applicant: 도레이첨단소재 주식회사
CPC classification number: B29C55/005 , B29C47/0021 , B29C55/12 , B29D11/00788 , B29K2067/00 , B29K2105/04 , B29K2995/003 , B29L2007/00 , B29L2011/00
Abstract: The present invention provides a manufacturing method for a white polyester reflective film comprising: a first step of manufacturing an undrawn sheet by molding a raw composition which contains uncommercialized hollow particles and white inorganic particles in polyester resins and polyester resins respectively through an extruder; a second step of cooling the molded undrawn sheet; a third step of manufacturing a uniaxially drawn film by uniaxially drawing the cooled undrawn sheet; a fourth step of manufacturing a biaxially drawn film by biaxially drawing the uniaxially drawn film; and a fifth step of heat-treating the biaxially drawn film. The manufacturing method for the present invention is able to minimize breaking frequency in a biaxially drawing process by controlling the number and size of the hollow particles. A reflective film manufactured thereby improves optical properties by doubly giving photorefraction to the pores of the inner space of the hollow particles except for pores produced by making uncommercialized hollow particles as nucleuses in the polyester resins of the raw composition.
Abstract translation: 本发明提供一种白色聚酯反射膜的制造方法，包括：通过挤出机分别在聚酯树脂和聚酯树脂中成型含有非商业化中空颗粒和白色无机颗粒的原料组合物来制造未拉伸片材的第一步骤; 冷却模制的未拉伸片材的第二步骤; 通过单轴拉伸冷却的未拉伸片来制造单轴拉伸膜的第三步骤; 通过双轴拉伸单轴拉伸膜制造双轴拉伸膜的第四步骤; 以及对双轴拉伸膜进行热处理的第五步骤。 本发明的制造方法能够通过控制中空粒子的数量和尺寸来最小化双轴拉伸工序中的断裂频率。 由此制造的反射膜通过对除了在未经组合物的聚酯树脂中制造非商业化的中空颗粒作为核的孔所产生的孔以外，对中空颗粒的内部空间的孔进行双折射来提高光学性能。
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公开(公告)号：KR101671817B1
公开(公告)日：2016-11-02
申请号：KR1020150025885
申请日：2015-02-24
Applicant: 도레이첨단소재 주식회사
Abstract: 본발명은필름표면의굴곡을극대화함으로써저광택을달성하고결점시인성을낮추며휘도무라를억제하고, 도광판과의밀착성결점(Wet Out) 현상과반사판의갈림현상을방지할수 있고, 코팅공정등의후가공시 코팅층과의부착력을상승시킬수 있는저광택백색폴리에스테르필름및 이의제조방법과이를이용한반사시트에관한것이다.
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