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公开(公告)号：US11939407B2
公开(公告)日：2024-03-26
申请号：US18160009
申请日：2023-01-26
Applicant: Eastman Chemical Company
Inventor： Casey Lynn Elkins , Robert Jacks Sharpe , Bin Wang
CPC classification number: C08B3/16 , C08B3/06 , C08B3/08 , C08J5/18 , C08J2301/10 , C08J2301/12 , C08J2301/14
Abstract: The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.
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公开(公告)号：US20230235093A1
公开(公告)日：2023-07-27
申请号：US18190415
申请日：2023-03-27
Applicant: Eastman Chemical Company
Inventor： Matthew Allen Boone , Christopher Harlan Burk , Peter Borden Mackenzie , Jennifer A. Fish , Eduardo Gallas Cervo , Elaine Beatrice Mackenzie , Robert Joseph Maleski , Wesley Wayne McConnell , David William Norman , Tabatha Stearns , Bin Wang
IPC: C08B3/16 , B32B27/24 , B32B27/08 , B32B27/36 , B32B7/12 , B32B27/28 , C08L1/14 , B32B23/08 , B32B27/32 , B32B27/18 , G02B5/30 , B32B27/22 , H10K50/86 , H10K50/84 , B32B27/06 , G02F1/13363
CPC classification number: C08B3/16 , B32B27/24 , B32B27/08 , B32B27/36 , B32B7/12 , B32B27/281 , C08L1/14 , B32B27/365 , B32B23/08 , B32B27/325 , B32B27/18 , G02B5/3033 , B32B27/22 , H10K50/86 , H10K50/846 , B32B27/06 , G02B5/305 , G02B5/3083 , G02F1/13363 , C08L1/08
Abstract: Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.
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公开(公告)号：US20220235149A1
公开(公告)日：2022-07-28
申请号：US17302463
申请日：2021-05-04
Applicant: Eastman Chemical Company
Inventor： Matthew Allen Boone , Christopher Harlan Burk , Peter Borden Mackenzie , Jennifer A. Fish , Eduardo Gallas Cervo , Elaine Beatrice Mackenzie , Robert Joseph Maleski , Wesley Wayne McConnell , David William Norman , Tabatha Stearns , Bin Wang
IPC: C08B3/16 , B32B27/24 , B32B27/08 , B32B27/36 , B32B7/12 , B32B27/28 , C08L1/14 , B32B23/08 , B32B27/32 , B32B27/18 , G02B5/30 , B32B27/22 , B32B27/06 , G02F1/13363 , H01L51/52
Abstract: Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.
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公开(公告)号：US20200017647A1
公开(公告)日：2020-01-16
申请号：US16492967
申请日：2018-03-28
Applicant: Eastman Chemical Company
Inventor： Casey Lynn Elkins , Robert Jacks Sharpe , Bin Wang
Abstract: The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.
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公开(公告)号：US20160187539A1
公开(公告)日：2016-06-30
申请号：US15064061
申请日：2016-03-08
Applicant: Eastman Chemical Company
Inventor： Bin Wang , Thauming Kuo , Michael Eugene Donelson , Douglas Stephens McWilliams
CPC classification number: G02B1/08 , C08J5/18 , C08J2301/12 , C08J2301/14 , C08K5/01 , C08K5/105 , G02B5/3083 , Y10T428/1036 , Y10T428/105
Abstract: The present invention pertains to an optical film for use as a quarter wave plate (QWP) having a normal wavelength dispersion curve. More specifically, this invention relates to a quarter wave plate based on cellulose ester polymer and fused ring additives.
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Patent Agency Ranking
公开(公告)号：US20160108137A1
公开(公告)日：2016-04-21
申请号：US14858450
申请日：2015-09-18
Applicant: Eastman Chemical Company
Inventor： Charles Michael Buchanan , Norma Lindsey Buchanan , Michael Eugene Donelson , Maryna Grigorievna Gorbunova , Thauming Kuo , Bin Wang
IPC: C08B3/16
CPC classification number: C08B3/16 , B29D11/00788 , C08B1/003 , C08B3/06 , C08J5/18 , C08J2301/10 , C08J2301/14 , G02B5/3083 , G02F1/13363 , G02F2201/50 , G02F2202/40 , G02F2413/11
Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.
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公开(公告)号：US09309362B2
公开(公告)日：2016-04-12
申请号：US14548821
申请日：2014-11-20
Applicant: Eastman Chemical Company
Inventor： Bin Wang , Thauming Kuo , Michael Eugene Donelson , Douglas Stephens McWilliams
CPC classification number: C08J5/18 , C08J2301/12 , C08J2301/14 , G02B5/3083
Abstract: The present invention pertains to an unstretched optical film comprising an additive for enhancing retardation in the thickness direction (Rth) and methods for making the optical film.
Abstract translation: 本发明涉及一种未拉伸光学膜，其包括用于增强厚度方向的延迟的添加剂（Rth）和用于制造光学膜的方法。
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8.发明申请REGIOSELECTIVELY SUBSTITUTED CELLULOSE ESTERS PRODUCED IN A HALOGENATED IONIC LIQUID PROCESS AND PRODUCTS PRODUCED THEREFROM 有权在一种氢化离子液体过程中生产的选择性取代的纤维素酯及其生产的产品公开(公告)号：US20130190485A1
公开(公告)日：2013-07-25
申请号：US13706684
申请日：2012-12-06
Applicant: Eastman Chemical Company
Inventor： Charles Michael Buchanan , Norma Lindsey Buchanan , Michael Eugene Donelson , Maryna Grigorievna Gorbunova , Thauming Kuo , Bin Wang
IPC: C08B1/00
CPC classification number: C08B1/003 , C08B3/04 , C08B3/06 , C08B3/08 , C08B3/10 , C08B3/16 , C08J5/18 , C08J2301/08 , G02B5/3083 , G02F1/13363 , G02F2413/11
Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.
Abstract translation: 本发明涉及包含区域选择性取代的纤维素酯的新型组合物。 本发明的一个方面涉及从溶解在离子液体中的纤维素制备区域选择性取代的纤维素酯的方法。 本发明的另一方面涉及区域选择性取代的纤维素酯在液晶显示器的保护和补偿膜等应用中的应用。
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公开(公告)号：US20250034366A1
公开(公告)日：2025-01-30
申请号：US18709118
申请日：2022-11-11
Applicant: Eastman Chemical Company
Inventor： Jessica Price Evans , Wesley Wayne McConnell , Bin Wang , Myungman Kim
Abstract: The present application discloses mixed cellulose esters that are freshwater biodegradable. The present application also discloses compositions, articles, beads and films (e.g. reverse dispersion quarter waveplate) made from the mixed cellulose esters.
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公开(公告)号：US11643477B2
公开(公告)日：2023-05-09
申请号：US17302463
申请日：2021-05-04
Applicant: Eastman Chemical Company
Inventor： Matthew Allen Boone , Christopher Harlan Burk , Peter Borden Mackenzie , Jennifer A. Fish , Eduardo Gallas Cervo , Elaine Beatrice Mackenzie , Robert Joseph Maleski , Wesley Wayne McConnell , David William Norman , Tabatha Stearns , Bin Wang
IPC: C08B3/16 , B32B27/24 , B32B27/08 , B32B27/36 , B32B7/12 , B32B27/28 , C08L1/14 , B32B23/08 , B32B27/32 , B32B27/18 , G02B5/30 , B32B27/22 , B32B27/06 , G02F1/13363 , H01L51/52 , C08L1/08 , C08L1/10
CPC classification number: C08B3/16 , B32B7/12 , B32B23/08 , B32B27/06 , B32B27/08 , B32B27/18 , B32B27/22 , B32B27/24 , B32B27/281 , B32B27/325 , B32B27/36 , B32B27/365 , C08L1/14 , G02B5/305 , G02B5/3033 , G02B5/3083 , G02F1/13363 , H01L51/5259 , H01L51/5281 , B32B2307/40 , B32B2307/516 , B32B2307/518 , B32B2307/546 , B32B2307/732 , B32B2309/105 , B32B2457/202 , B32B2457/206 , C08L1/08 , C08L1/10 , C09K2323/03 , C09K2323/035 , G02F1/133638 , G02F2413/13
Abstract: Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.
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