公开(公告)号：US10174129B2

公开(公告)日：2019-01-08

申请号：US15425058

申请日：2017-02-06

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： Charles Michael Buchanan ,  Norma Lindsey Buchanan ,  Robert Thomas Hembre ,  Juanelle Little Lambert ,  Michael Eugene Donelson ,  Maryna Grigorievna Gorbunova ,  Thauming Kuo ,  Bin Wang

IPC: C08B3/16 ,  C08L1/14 ,  G02B1/14 ,  C08J5/18 ,  C08B1/00 ,  C08B3/28 ,  C07D233/54 ,  G02B5/30 ,  G02B1/10

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.

公开(公告)号：US09175096B2

公开(公告)日：2015-11-03

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: C08B3/04 ,  C08B3/06 ,  C08B3/08 ,  C08B3/10 ,  C08B1/00 ,  C08B3/16 ,  C08J5/18 ,  G02B5/30 ,  G02F1/13363

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。

公开(公告)号：US20140168770A1

公开(公告)日：2014-06-19

申请号：US14108787

申请日：2013-12-17

Applicant: Eastman Chemical Company

Inventor： Bin Wang ,  Maryna Grigorievna Gorbunova ,  Brian Michael King

IPC: G02B5/30

CPC classification number: G02B5/3083 ,  B32B23/20 ,  B32B27/36 ,  B32B2457/20 ,  B32B2457/202 ,  C08B3/16 ,  G02B1/04 ,  G02F1/0063 ,  G02F2001/133637 ,  G02F2001/133638 ,  Y10T428/1036 ,  Y10T428/105 ,  C08L1/14

Abstract: The present invention relates to a single layer mixed cellulose ester film having a reversed optical dispersion. The mixed cellulose ester material has a DSOH from 0.35 to 1.35. By manipulating the thickness of the film, and the film stretching conditions, desirable optical retardation and optical dispersion properties can be obtained. The film can be used as an optical waveplate in liquid crystal displays to improve viewing angle, contrast ratio, and color shift.

Abstract translation: 本发明涉及具有反向光学分散体的单层混合纤维素酯薄膜。 混合纤维素酯材料的DSOH为0.35〜1.35。 通过操作膜的厚度和膜拉伸条件，可以获得期望的光学延迟和光学分散性能。 该膜可以用作液晶显示器中的光学波片，以改善视角，对比度和色移。

公开(公告)号：US09777074B2

公开(公告)日：2017-10-03

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 ,  C08B1/00 ,  C08B3/06 ,  C08J5/18 ,  G02B5/30 ,  B29D11/00 ,  G02F1/13363

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.

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.

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。