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61. 发明申请

US20050244646A1 Modified copolyesters and improved multilayer reflective films 有权
标题翻译：改性共聚酯和改进的多层反射膜
公开(公告)号：US20050244646A1
公开(公告)日：2005-11-03
申请号：US11171057
申请日：2005-06-30
申请人： Timothy Hebrink , William Merrill , Carl Stover
发明人： Timothy Hebrink , William Merrill , Carl Stover
IPC分类号： A61B5/08 , A61B5/22 , A61N1/08 , A61N1/362 , A61N1/365 , A61N1/37 , B32B7/02 , B32B9/04 , B32B27/08 , B32B27/36 , C08G63/12 , C08G63/181 , C08G63/199 , C08G63/20 , G02B1/10 , G02B5/08 , G02B5/26 , G02B5/28 , G02B5/30
CPC分类号： B32B27/08 , A61B5/0803 , A61B5/0809 , A61B5/0816 , A61B5/22 , A61N1/08 , A61N1/3627 , A61N1/36514 , A61N1/3704 , B32B7/02 , B32B27/36 , B32B2250/05 , B32B2250/244 , B32B2255/10 , B32B2255/20 , B32B2255/26 , B32B2307/416 , B32B2307/42 , B32B2307/5825 , B32B2307/584 , B32B2307/704 , B32B2457/202 , B32B2551/00 , B32B2551/08 , C08G63/181 , C08G63/199 , C08G63/20 , G02B5/0841 , G02B5/0866 , G02B5/305 , G02B5/3083 , Y10S428/91 , Y10T428/11 , Y10T428/24479 , Y10T428/24612 , Y10T428/24942 , Y10T428/31504 , Y10T428/31786
摘要： A multilayered polymer film includes a first set of optical layers and a second set of optical layers. The first set of optical layers is made from a polyester which is often birefringent. The polyesters of the first set of optical layers typically have a composition in which 70-100 mol % of the carboxylate subunits are first carboxylate subunits and 0-30 mol % are comonomer carboxylate subunits and 70 to 100 mol % of the glycol subunits are first glycol subunits and 0 to 30 mol % of the glycol subunits are comonomer glycol subunits, where at least 0.5 mol % of the combined carboxylate and glycol subunits are comonomer carboxylate or comonomer glycol subunits. The multilayered polymer film may be used to form, for example, a reflective polarizer or a mirror.
摘要翻译：多层聚合物膜包括第一组光学层和第二组光学层。第一组光学层由经常是双折射的聚酯制成。第一组光学层的聚酯通常具有其中70-100摩尔％的羧酸盐亚基是第一羧酸盐亚单位，0-30摩尔％是共聚单体羧酸盐亚单位的组分，并且70-100摩尔％的二醇亚单位是第一乙二醇亚基和0至30摩尔％的二醇亚单位是共聚单体二醇亚单位，其中至少0.5摩尔％的羧酸酯和二醇亚单位组合物是共聚单体羧酸酯或共聚单体二醇亚单元。多层聚合物膜可以用于形成例如反射偏振器或反射镜。

62. 发明授权

US06939584B2 Process for the production of coated polymeric film 失效
标题翻译：涂覆聚合物薄膜的生产工艺
公开(公告)号：US06939584B2
公开(公告)日：2005-09-06
申请号：US10250994
申请日：2002-01-25
申请人： Stephen William Sankey , Kenneth Evans , Mark Russell Hodgson
发明人： Stephen William Sankey , Kenneth Evans , Mark Russell Hodgson
IPC分类号： B65D77/20 , B05D3/12 , B05D7/04 , B29C47/02 , B29C55/00 , B32B27/08 , B65D53/00 , C08J7/04 , B05D3/00
CPC分类号： C08J7/047 , B05D3/12 , B05D7/04 , B29C47/0021 , B29C47/025 , B29C55/00 , B32B38/0008 , B32B2037/243 , B32B2038/0028 , B32B2310/14 , B32B2435/00 , C08J2467/00 , Y10S428/91 , Y10T428/1352 , Y10T428/265 , Y10T428/269 , Y10T428/2813 , Y10T428/2817 , Y10T428/2826 , Y10T428/2852 , Y10T428/31786
摘要： A process for producing a heat-sealable polymeric film comprises the steps of: (a) melt-extruding a substrate layer of polymeric material; (b) stretching the substrate layer in a first direction; (c) optionally stretching the substrate layer in a second, orthogonal direction; (d) optionally heat-setting the stretched substrate layer; (e) forming a heat-sealable coating layer on a surface of the substrate layer by melt-coating directly thereon a molten polymeric material; and (f) cooling the coated substrate layer; wherein coating step (e) is prior to step (b) or between steps (b) and (c); wherein the thickness of the coating layer is less than about 8 μm; wherein the molten polymeric material of the coating layer comprises a copolyester, and wherein the molten polymeric material comprises a copolyester.
摘要翻译：制造可热封聚合物膜的方法包括以下步骤：（a）熔融挤出聚合物材料的基底层; （b）沿第一方向拉伸基底层; （c）任选地在第二正交方向上拉伸基底层; （d）任选地热定形拉伸的基底层; （e）通过在其上直接熔融熔融涂覆熔融的聚合物材料，在基材层的表面上形成可热封的涂层; 和（f）冷却涂覆的基底层; 其中涂布步骤（e）在步骤（b）之前或步骤（b）和（c）之前; 其中所述涂层的厚度小于约8μm; 其中所述涂层的熔融聚合物材料包含共聚酯，并且其中所述熔融聚合物材料包含共聚酯。

63. 发明申请

US20050186408A1 Multilayer optical bodies 有权
标题翻译：多层光学体
公开(公告)号：US20050186408A1
公开(公告)日：2005-08-25
申请号：US11089417
申请日：2005-03-24
申请人： Peter Condo , Timothy Hebrink , John Wheatly , Andrew Ouderkirk , Andrew Ruff , Milton Andrus
发明人： Peter Condo , Timothy Hebrink , John Wheatly , Andrew Ouderkirk , Andrew Ruff , Milton Andrus
IPC分类号： B29C55/02 , B29D11/00 , B32B7/02 , B32B27/08 , B32B27/36 , C08L27/16 , C08L33/12 , G02B5/08 , G02B5/26 , G02B5/28 , G02B5/30 , G02B27/28 , G02F1/1335 , G02F1/13357 , B32B27/30
CPC分类号： B32B27/08 , B29C55/023 , B29D11/00 , B29K2995/003 , B29K2995/0034 , B32B7/02 , B32B27/36 , B32B2307/416 , B32B2307/42 , B32B2551/00 , B32B2551/08 , G02B5/0841 , G02B5/26 , G02B5/287 , G02B5/3025 , G02B5/3041 , G02B5/305 , G02B5/3083 , G02B27/283 , G02F1/133536 , G02F1/13362 , G02F2001/133545 , Y10S428/91 , Y10T428/24942 , Y10T428/3154 , Y10T428/31786 , Y10T428/31797 , Y10T428/31935
摘要： Optical bodies, comprising: a plurality of first optical layers comprising a first polymer composition that comprises (i) a polyester portion having terephthalate comonomer units and ethylene glycol comonomer units; and (ii) a second portion corresponding to a polymer having a glass transition temperature of at least about 130° C.; and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers. Also disclosed are optical bodies comprising: (a) a plurality of first optical layers, each first optical layer being oriented; and (b) a plurality of second optical layers, disposed in a repeating sequence with the plurality of first optical layers, comprising a blend of polymethylmethacrylate and polyvinylidene fluoride. Methods of making the above-described optical bodies, and articles employing such optical bodies are also provided.
摘要翻译：光学体，包括：多个第一光学层，包括第一聚合物组合物，其包含（i）具有对苯二甲酸酯共聚单体单元和乙二醇共聚单体单元的聚酯部分; 和（ii）对应于具有至少约130℃的玻璃化转变温度的聚合物的第二部分; 以及与所述多个第一光学层重复排列的多个第二光学层。还公开了光学体，其包括：（a）多个第一光学层，每个第一光学层被定向; 和（b）以多个第一光学层重复设置的多个第二光学层，包括聚甲基丙烯酸甲酯和聚偏二氟乙烯的混合物。还提供了制造上述光学体的方法和使用这种光学体的制品。

64. 发明授权

US06926945B2 Biaxially oriented layered polyester film and film with hard coat layer 有权
标题翻译：双轴取向层状聚酯薄膜和具有硬涂层的薄膜
公开(公告)号：US06926945B2
公开(公告)日：2005-08-09
申请号：US10398615
申请日：2001-12-28
申请人： Shinji Yano , Koji Kubo
发明人： Shinji Yano , Koji Kubo
IPC分类号： B32B27/36 , C08J7/04 , C08L33/00 , C08L91/06 , C09D167/00 , B32B27/08 , B32B27/16 , B32B27/18 , B32B27/20
CPC分类号： C08J7/047 , B32B27/36 , C08J2367/02 , C08J2433/00 , C08J2467/00 , C08L33/00 , C08L91/06 , C09D167/00 , Y10S428/91 , Y10T428/24355 , Y10T428/24942 , Y10T428/24983 , Y10T428/31786 , Y10T428/31794 , Y10T428/31797 , C08L2666/02
摘要： There is provided an easily adhesive, biaxially oriented laminated polyester film for optical use which has excellent adhesion, transparency and easy slipperiness. The biaxially oriented laminated film has a coating layer formed on at least one surface of an aromatic polyester film, the coating layer containing either a polyester resin, an acrylic resin and wax or a polyester resin and an acrylic resin having an oxazoline group and an alkylene oxide chain.
摘要翻译：提供了一种易粘合的双轴取向的光学用层压聚酯膜，其具有优异的粘附性，透明性和易滑性。双轴取向层叠膜具有在芳香族聚酯膜的至少一个面上形成的涂层，该涂层含有聚酯树脂，丙烯酸树脂和蜡或聚酯树脂，以及具有恶唑啉基和亚烷基的丙烯酸树脂氧化物链。

65. 发明授权

US06926859B2 Method of forming container with high-crystallinity sidewall and low-crystallinity base 失效
标题翻译：形成具有高结晶度侧壁和低结晶度基底的容器的方法
公开(公告)号：US06926859B2
公开(公告)日：2005-08-09
申请号：US10122297
申请日：2002-04-16
申请人： Wayne N. Collette , Suppayan M. Krishnakumar , Chi Chung Lin
发明人： Wayne N. Collette , Suppayan M. Krishnakumar , Chi Chung Lin
IPC分类号： B29C35/08 , B29C49/00 , B29C49/06 , B29C49/12 , B29C49/18 , B29C49/22 , B29C49/48 , B29C49/54 , B29C49/64 , B29C61/02 , B65D1/00 , B65D1/02
CPC分类号： B65D1/0284 , B29B2911/1402 , B29B2911/14026 , B29B2911/14033 , B29B2911/1404 , B29B2911/14053 , B29B2911/14066 , B29B2911/1408 , B29B2911/14093 , B29B2911/14106 , B29B2911/14113 , B29B2911/1412 , B29B2911/14133 , B29B2911/1414 , B29B2911/14146 , B29B2911/14326 , B29B2911/1433 , B29B2911/14331 , B29B2911/14332 , B29B2911/14333 , B29B2911/14336 , B29B2911/14337 , B29B2911/1444 , B29B2911/14593 , B29B2911/14906 , B29B2911/14913 , B29B2911/14933 , B29C49/0073 , B29C49/06 , B29C49/12 , B29C49/18 , B29C49/22 , B29C49/4823 , B29C49/541 , B29C49/6445 , B29C49/6472 , B29C49/649 , B29C61/02 , B29C2035/0822 , B29C2035/0861 , B29C2049/1209 , B29C2049/4848 , B29K2067/00 , B29K2105/26 , B29K2667/00 , B29K2995/004 , B29K2995/0043 , B29K2995/0067 , B29K2995/0069 , B29L2031/7158 , B65D1/0207 , B65D1/0223 , B65D1/0276 , Y10S428/91 , Y10T428/13 , Y10T428/1352 , Y10T428/1379 , Y10T428/1383 , Y10T428/139 , Y10T428/1397
摘要： A method of making a polyester container having an enhanced level of crystallinity in the sidewall while maintaining a low level of crystallinity in a thickened base portion. The container is particularly useful as a refillable container which can withstand higher caustic wash temperatures and exhibits reduced flavor carryover, or as a hot-fill container. According to the method, a sidewall-forming section of a preform is initially expanded, heated to contract and crystallize the same, and than reexpanded; a base-forming portion of the preform is shielded from the heat treatment and is expanded either before or after the heat treatment step.
摘要翻译：制造在侧壁中具有增强的结晶度的聚酯容器的方法，同时在增厚的基底部分中保持低水平的结晶度。该容器特别适用于可承受更高苛性洗涤温度并显示减少风味携带的可再充装容器，或作为热填充容器。根据该方法，首先将预制件的侧壁形成部分膨胀，加热以收缩并使其结晶，而不是再膨胀; 预成型件的基底形成部分不受热处理的影响，并且在热处理步骤之前或之后膨胀。

66. 发明申请

US20050164022A1 Single- or multilayer thermoplastic polymer film capable of structuring by means of electromagnetic radiation, process for its production, and its use 失效
标题翻译：能够通过电磁辐射构造的单层或多层热塑性聚合物膜，其生产工艺及其用途
公开(公告)号：US20050164022A1
公开(公告)日：2005-07-28
申请号：US11037624
申请日：2005-01-18
申请人： Holger Kliesch , Thorsten Kiehne , Gottfried Hilkert , Ingo Fischer
发明人： Holger Kliesch , Thorsten Kiehne , Gottfried Hilkert , Ingo Fischer
IPC分类号： B32B27/20 , B29C35/08 , B29C47/00 , B29C47/04 , B29C47/14 , B29C55/02 , B29C55/12 , B29D7/01 , B29K101/12 , B32B5/20 , B32B27/34 , B32B27/36 , C08G63/685 , C08J3/22 , C08J5/18 , C08J7/04 , C08J7/18 , C08K3/00 , C08K3/04 , C08K3/22 , C08K3/34 , C08K5/00 , C08L67/00 , C08L67/02 , C08L77/00 , C08L101/00 , H05K1/00 , H05K1/03 , H05K3/10
CPC分类号： B32B27/20 , B29C35/0805 , B29C47/0021 , B29C47/065 , B29C47/14 , B29C55/12 , B29D7/01 , B29K2067/00 , B29K2077/00 , B29K2105/26 , B32B5/20 , B32B27/08 , B32B27/34 , B32B27/36 , B32B2272/00 , B32B2305/70 , B32B2307/514 , B32B2309/105 , C08G63/6856 , C08J3/22 , C08J5/18 , C08J7/18 , C08J2367/02 , C08J2377/00 , C08K3/04 , C08K3/22 , C08K3/34 , C08K13/00 , C08L67/02 , C08L77/00 , H05K1/0373 , H05K1/0393 , H05K3/105 , H05K2201/0112 , H05K2201/0129 , H05K2201/0209 , H05K2203/107 , Y10S428/91 , Y10T428/24942 , Y10T428/2495 , Y10T428/24967 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/26 , Y10T428/268 , Y10T428/269 , Y10T428/31551 , Y10T428/31725 , Y10T428/31736 , Y10T428/31786 , C08L2666/20
摘要： The invention relates to a single- or multilayer, oriented film in which at least one layer is comprised of a thermoplastic polymer having a minimum amount of amide groups. The polymer is a polyester, a polyamide, or a mixture comprised of polyester and polyamide, or is a copolymer comprised of these two materials. The film also comprises a component a) which, when irradiated with electromagnetic or particulate radiation, forms metal nuclei onto which further metal can be accumulated in further steps of the process. The invention also relates to a process for the production of this film, and to its use in printed circuit boards, ribbon cables, smart cards, RFID labels, membrane keyboards, or film-based circuits of any type.
摘要翻译：本发明涉及单层或多层定向膜，其中至少一层由具有最少量酰胺基团的热塑性聚合物组成。聚合物是聚酯，聚酰胺或由聚酯和聚酰胺组成的混合物，或是由这两种材料组成的共聚物。该膜还包括组分a），当用电磁或微粒辐射照射时，其形成金属核，在该过程的进一步步骤中可以积聚另外的金属。本发明还涉及一种用于生产该膜的方法及其在印刷电路板，带状电缆，智能卡，RFID标签，膜键盘或任何类型的基于胶片的电路中的应用。

67. 发明申请

US20050158537A1 Multilayer oriented antimicrobial and antifogging films 失效
标题翻译：多层定向抗菌防雾膜
公开(公告)号：US20050158537A1
公开(公告)日：2005-07-21
申请号：US10512297
申请日：2003-04-17
申请人： Oktay Aral , Cumbur Buyukakinci , Zakir Rzaev
发明人： Oktay Aral , Cumbur Buyukakinci , Zakir Rzaev
IPC分类号： A01N25/34 , B32B27/08 , B32B27/16 , B32B27/18 , B32B27/32 , C08L23/10 , C08L23/14
CPC分类号： B32B27/18 , A01N25/34 , B32B27/32 , B32B37/153 , B32B38/0008 , B32B2307/31 , B32B2307/518 , B32B2307/7145 , B32B2307/75 , B32B2310/14 , B32B2439/70 , C08L23/10 , C08L23/142 , Y10S428/91 , Y10T428/26 , Y10T428/265 , Y10T428/266 , Y10T428/2817 , Y10T428/2826 , Y10T428/31855 , Y10T428/31909 , Y10T428/31913 , C08L2666/06 , A01N59/16 , A01N25/10
摘要： Antimicrobial and antifogging polymeric films with preferable A/C/E structure useful for the food, medicine and agriculture applications as well as for other general packaging and non-traditional special applications. More preferably, animicrobial and antifogging films having a A/B/C/E structure. Most preferably, antimicrobial and antifogging films having a A/B/C/D/E structure. A multilayer structure (having at least an skin layer (A) having antifogging and antimicrobial properties/a core layer (C)/an outer layer (E) structure) for semi and biaxially oriented polyolefin based antifogging films having advantageous properties as compared with known and commercial films such as low values of haze, high values of sheen, lower longitudinal and transverse shrinkage, which provides high dimensional stability, and excellent antifogging and antimicrobial properties. Preferably the skin layer (A), having antifogging and antimicrobial properties, is electrical corona or flame treated. Electrical corona or flame treatment of the outer layer (E) may enhance ink anchorage and increase the printability of this layer. Preferably, the films comprise an inner (B) layer between the skin layer (A) and the core layer (C). Preferably, the films may comprise a second inner (D) layer between the outer (E) layer and the core layer (C).
摘要翻译：具有优选A / C / E结构的抗微生物和防雾聚合物膜，适用于食品，医药和农业应用以及其他一般包装和非传统特殊应用。更优选具有A / B / C / E结构的抗微生物和防雾膜。最优选具有A / B / C / D / E结构的抗微生物和防雾膜。一种多层结构（至少具有防雾和抗菌性能的表层（A）/芯层（C）/外层（E）结构），其与已知的相比具有优势的半双轴取向聚烯烃防雾膜和商业膜，例如雾度值低，光泽度高，纵向和横向收缩较低，提供高尺寸稳定性，以及优异的防雾和抗菌性能。优选地，具有防雾和抗微生物性质的皮肤层（A）是电晕或火焰处理的。外层（E）的电晕或火焰处理可以增强油墨的粘附力并增加该层的印刷性。优选地，膜包括在表皮层（A）和芯层（C）之间的内层（B）层。优选地，膜可以包括在外（E）层和芯层（C）之间的第二内（D）层。

68. 发明授权

US06911244B2 Encapsulated barrier for flexible films and a method of making the same 有权
标题翻译：柔性膜的封装屏障及其制造方法
公开(公告)号：US06911244B2
公开(公告)日：2005-06-28
申请号：US10325002
申请日：2002-12-20
申请人： Robert J. Blemberg , Gregory L. Petkovsek , Chad M. Perre
发明人： Robert J. Blemberg , Gregory L. Petkovsek , Chad M. Perre
IPC分类号： B32B7/02 , B32B7/12 , B32B3/02
CPC分类号： B32B7/02 , B32B7/12 , Y10S428/91 , Y10T428/1383 , Y10T428/239 , Y10T428/31743 , Y10T428/31928
摘要： The present invention relates to a film structure and a method of manufacturing the same. More specifically, the film structure may include a barrier material made from EVOH, nylon or other thermally sensitive barrier material encapsulated by a first adhesive material. The barrier material and the first adhesive material form a barrier layer and a first set of adhesive layers when coextruded. The barrier layer and the first set of adhesive layers may be coextruded at the same or a similar temperature to form a first extrudate. The extrudate may be encapsulated by or otherwise coextruded with a second adhesive material to form a second extrudate at a higher temperature than the first extrudate that then may be formed into a flat sheet via a die. The first set of adhesive layers protects the barrier layer from high temperatures and long residence times related to the coextrusion/lamination process that may degrade the barrier layer. In addition, acid terpolymer consisting of ethylene/methyl acrylate/acrylic acid adheres a barrier material of EVOH to outer layers of the film structure.
摘要翻译：膜结构及其制造方法技术领域本发明涉及膜结构及其制造方法。更具体地，膜结构可以包括由EVOH，尼龙或由第一粘合剂材料包封的其它热敏阻挡材料制成的阻挡材料。当共挤出时，阻挡材料和第一粘合材料形成阻挡层和第一组粘合剂层。阻挡层和第一组粘合剂层可以在相同或相似的温度下共挤出以形成第一挤出物。挤出物可以用第二粘合剂材料包封或以其它方式共挤出，以在比可以通过模具形成平板的第一挤出物更高的温度下形成第二挤出物。第一组粘合剂层保护阻隔层不受高温和长时间停留时间的影响，共挤出/层压过程可能会降低阻挡层。此外，由乙烯/丙烯酸甲酯/丙烯酸组成的酸性三元共聚物将EVOH的阻隔材料粘合到膜结构的外层。

69. 发明授权

US06905774B2 Biaxially-oriented polyester film for fabrication and method of producing the same 有权
标题翻译：双轴取向聚酯薄膜及其制造方法
公开(公告)号：US06905774B2
公开(公告)日：2005-06-14
申请号：US10648320
申请日：2003-08-27
申请人： Kohzo Takahashi , Ryosuke Matsui , Masahiro Kimura
发明人： Kohzo Takahashi , Ryosuke Matsui , Masahiro Kimura
IPC分类号： B32B15/08 , B32B27/36 , B65D25/14 , C08J5/18 , B32B27/06 , B32B27/18
CPC分类号： B32B15/09 , B32B15/08 , B32B27/18 , B32B27/36 , B32B2307/306 , B32B2307/518 , B32B2307/73 , B32B2367/00 , B32B2439/66 , B32B2439/70 , B65D25/14 , C08J5/18 , C08J2367/02 , Y10S428/91 , Y10T428/1352 , Y10T428/1355 , Y10T428/1359 , Y10T428/259 , Y10T428/31663 , Y10T428/31678 , Y10T428/31681 , Y10T428/31786
摘要： Biaxially-drawn polyester film for fabrication which is characterized in that it is a film comprising polyester in which ethylene terephthalate units and/or ethylene naphthalate units are the chief structural component, and the melting point of said film is 180-270° C., the angle of contact to water is 70°-120°, and the planar orientation coefficient is 0.08-0.15. This film shows outstanding release properties following repeated use, use after fabrication and use in an aqueous environment and, furthermore, it exhibits stable properties with little variation and, in particular, following lamination to metal sheet such as steel or aluminium, when used as the inner face of a fabricated metal can, it is outstanding in its non-stick properties to the contents, and provides a combination of heat resistance and processability.
摘要翻译：用于制造的双轴拉伸聚酯薄膜，其特征在于它是一种包含聚酯的薄膜，其中对苯二甲酸乙二醇酯单元和/或萘二甲酸乙二醇酯单元是主要结构组分，所述薄膜的熔点为180-270℃，与水的接触角为70°-120°，平面取向系数为0.08-0.15。该膜在重复使用后，在水性环境中制造和使用后显示出优异的脱模性，此外，它具有稳定的特性，几乎没有变化，特别是在与钢或铝之类的金属片层合之后，当用作金属罐的内表面，其对内容物的不粘性具有突出性，并且提供耐热性和加工性的组合。

70. 发明申请

US20050123779A1 Multilayered polyester film and process for producing the same 有权
标题翻译：多层聚酯薄膜及其制造方法
公开(公告)号：US20050123779A1
公开(公告)日：2005-06-09
申请号：US10505048
申请日：2003-02-10
申请人： Tetsuo Yoshida , Tetsuo Ichihashi
发明人： Tetsuo Yoshida , Tetsuo Ichihashi
IPC分类号： B29C55/02 , B32B27/36 , B32B37/15
CPC分类号： B32B7/02 , B29C55/023 , B29K2067/00 , B32B7/12 , B32B27/08 , B32B27/36 , B32B37/153 , B32B2038/0028 , B32B2250/40 , B32B2307/412 , B32B2307/734 , B32B2367/00 , B32B2425/00 , B32B2439/70 , Y10S428/91 , Y10T428/24942 , Y10T428/2495 , Y10T428/31786
摘要： The present invention is a multilayer polyester film comprising a layer A and a layer B which are laminated alternately, the layer A constituting the outermost layer on both sides of the film, wherein (1) the layer A comprises a polyester A, and the layer B comprises a polyester B, (2) the melting point of the polyester A is higher than the melting point of the polyester B by at least 15° C., (3) the layer A is a layer having an oriented structure, and the layer B is a layer having a substantially unoriented structure, (4) the ratio (a/b) of the total thickness (a) of the layer A to the total thickness (b) of the layer B is 0.01 to 3, and (5) the in-plane tensile strength of the multilayer polyester film is 50 MPa or lower at a maximum, and the difference between its maximum value and minimum value is 20 MPa or smaller; and a method for producing the multilayer polyester film. According to the present invention, there is provided a film having excellent isotropy of in-plane tensile strength, excellent transparency, a low degree of thickness unevenness and excellent moldability.
摘要翻译：本发明是一种多层聚酯薄膜，其包括交替层压的层A和层B，层A构成膜两侧的最外层，其中（A）层A包含聚酯A，层 B包含聚酯B，（2）聚酯A的熔点比聚酯B的熔点高至少15℃，（3）层A是具有取向结构的层，层B是具有基本上未取向结构的层，（4）层A的总厚度（a）与层B的总厚度（b）的比（a / b）为0.01〜3，（ 5）多层聚酯膜的面内拉伸强度最大为50MPa以下，其最大值与最小值的差为20MPa以下; 以及多层聚酯膜的制造方法。根据本发明，提供了具有优异的面内拉伸强度，优异的透明性，低的不均匀度，成型性优异的薄膜。

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