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公开(公告)号：US11034127B2
公开(公告)日：2021-06-15
申请号：US15361598
申请日：2016-11-28
发明人： Dagmar Klein , Holger Kliesch , Bodo Kuhmann , Artur Michalski
IPC分类号： B32B3/26 , B29C48/08 , B29C48/00 , B29C48/21 , B29C48/88 , B32B27/20 , B32B27/18 , B29C55/12 , B32B27/08 , B32B27/36 , B29K67/00 , B29K105/16 , B29K509/02 , B29L7/00
摘要： The invention relates to an at least three-layer biaxially oriented polyester film including at least one base layer B, one rough outer layer A and one smooth outer layer C, where the layers A and C are external layers arranged on opposing surfaces of the base layer B. The outer layer A includes calcium carbonate particles. The outer layer C includes less than 0.1% by weight of particles (where the percentage by weight data are based on the weight of the layer). The polyester used to produce all of the layers includes no 2,6-naphthalenedicarboxylic-acid-derived units as repeating units. The entire film includes less than 0.3% by weight (based on the weight of the entire film) of particles. The invention further relates to processes for producing the film, and also to use of the latter as process film for the provision of surface properties, in particular for furniture surfaces.
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公开(公告)号：US11136175B2
公开(公告)日：2021-10-05
申请号：US16740939
申请日：2020-01-13
IPC分类号： B32B1/02 , B32B27/36 , B65D65/40 , B65D81/34 , B29C48/00 , B29C48/08 , B29C48/21 , B29C55/00 , B29C55/12 , B32B27/08 , B65D1/34 , B65D81/24 , B29K67/00 , B29L31/00
摘要： The invention relates to transparent packaging for vacuum forming, inter alia, formed from a biaxially oriented, thermoformable polyester film as lower film (A) and a biaxially oriented polyester film as upper film (B) that is both heat-sealable and peelable (at least when the material is hot) in relation to the lower film (A). The present invention further relates to the use of such packaging to produce sealed, thermoformed packs, and to the processes for their respective production.
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公开(公告)号：US11041056B2
公开(公告)日：2021-06-22
申请号：US16445829
申请日：2019-06-19
发明人： Herbert Peiffer , Martin Jesberger , Stefan Bartsch , Bodo Kuhmann , Viktor Fischer , Matthias Konrad
IPC分类号： C08G63/183 , C08J5/18 , B29C48/08 , B29C48/00 , C08J7/043 , C08J7/046 , C08J7/048 , C08K5/13
摘要： The present invention relates to a transparent, biaxially oriented, thermoformable polyester film including at least 85% by weight of a copolyester whose dicarboxylic acid components derive to an extent of 85 to 94 mol % from terephthalic acid-based units and to an extent of 6 to 15 mol % from isophthalic acid-based units. The inventive films exhibit a surface elasticity modulus in the range from 4500 to 6400 N/mm2; a sum total of the strengths (σ5) in longitudinal direction and in transverse direction in the range from 170 to 220 MPa; a density of less than 1390 kg/m3; a haze of less than 2.0%; a clarity of at least 85%; a gloss of at least 120 and a thickness in the range from 50 to 300 μm. The invention further relates to processes for producing such films, and to the use thereof.
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公开(公告)号：US20200223607A1
公开(公告)日：2020-07-16
申请号：US16740939
申请日：2020-01-13
IPC分类号： B65D65/40 , B32B27/36 , B32B27/08 , B65D81/24 , B65D1/34 , B32B1/02 , B29C48/00 , B29C48/08 , B29C48/21 , B29C55/00 , B29C55/12
摘要： The invention relates to transparent packaging for vacuum forming, inter alia, formed from a biaxially oriented, thermoformable polyester film as lower film (A) and a biaxially oriented polyester film as upper film (B) that is both heat-sealable and peelable (at least when the material is hot) in relation to the lower film (A). The present invention further relates to the use of such packaging to produce sealed, thermoformed packs, and to the processes for their respective production.
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5.发明授权Use of an antimony-free polyester film for producing film bags and film tubes with high heat resistance 有权使用无锑聚酯薄膜生产具有高耐热性的薄膜袋和薄膜管公开(公告)号：US08668970B2
公开(公告)日：2014-03-11
申请号：US13687094
申请日：2012-11-28
发明人： Holger Kliesch , Cynthia Bennett , Bodo Kuhmann , Matthias Konrad , Thomas Hackl , Stefanie Bauer
IPC分类号： B29D22/00
CPC分类号： C08L67/03 , C08J5/18 , C08J2367/02 , Y10T428/1338 , Y10T428/1345 , Y10T428/31786
摘要： Film bags or film tubes formed from biaxially oriented film including less than 10 ppm of antimony and having a haze of less than 10% are provided. The films have an ultimate tensile strength of more than 100 N/mm2; have a difference in the ultimate tensile strength in MD and TD of less than 180 N/mm2; have a tensile strain at break of more than 50%; a tensile strain at break of more than 260%; have a yellowness index b* of less than 2.5; have a lightness L*>85; include from 50 to 15 000 ppm of free-radical scavenger; have an SV of at least 600 after ovening; have a tensile strain at break of >5% after ovening; have a film thickness of from 6 to 26 μm; and include more than 90% by weight of polyester.
摘要翻译： 提供由包含小于10ppm的锑并且雾度小于10％的双轴取向薄膜形成的薄膜袋或薄膜管。 薄膜的极限拉伸强度大于100 N / mm2; MD和TD的极限抗拉强度差异小于180 N / mm2; 断裂拉伸应变大于50％; 断裂时的拉伸应变大于260％; 黄色指数b *小于2.5; 亮度L *> 85; 包括50至15 000ppm的自由基清除剂; 烘烤后至少有600个SV; 烘烤后拉伸应变> 5％; 膜厚6〜26μm; 并且包括超过90重量％的聚酯。
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公开(公告)号：US11208528B2
公开(公告)日：2021-12-28
申请号：US15480807
申请日：2017-04-06
发明人： Matthias Konrad , Bodo Kuhmann , David Ehrhardt , Thiemo Herbst , Holger Kliesch , Cynthia Bennett
IPC分类号： C08G63/183 , B29C48/08 , B29C48/00 , B29C48/21 , B29C48/88 , B32B27/36 , B29C55/12 , B32B15/09 , B32B15/20 , B32B27/08 , B32B15/08 , B29K267/00 , C08G63/85 , B65D43/00 , C08G63/16 , C08L67/03 , C09D7/63 , C08L67/02 , C09D201/10 , C08K3/013 , B32B37/15 , B32B37/12 , B32B27/20 , B32B27/18 , B32B15/04 , B32B7/04 , B32B7/12 , B29K67/00 , B29L7/00 , B29L31/56
摘要： The invention relates to a multilayer biaxially oriented polyester film comprising a base layer B, an amorphous outer layer A and a further outer layer C, where this polyester film is suitable for lamination with metal sheets. The invention in particular relates to a polyester film which comprises (based on the mass of polyester) from 2 to 15% by weight of isophthalate-derived units in the base layer and which comprises more than 19% by weight of isophthalate-derived units in the amorphous layer A, and which has a silane-based coating on the outer layer A. The invention further relates to a process for the production of these films.
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