公开(公告)号：US20170204201A1

公开(公告)日：2017-07-20

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 ,  C08J5/18 ,  C09D101/12 ,  C09D101/10

CPC classification number: C08B3/16 ,  C07D233/54 ,  C08B1/003 ,  C08B3/28 ,  C08J5/18 ,  C08J2301/10 ,  C08J2301/12 ,  C08J2301/14 ,  C08L1/14 ,  G02B1/14 ,  G02B5/3083 ,  G02F1/13363

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：US20180258189A1

公开(公告)日：2018-09-13

申请号：US15974795

申请日：2018-05-09

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： CHARLES MICHAEL BUCHANAN ,  MICHAEL EUGENE DONELSON ,  ELIZABETH GUZMAN-MORALES ,  PETER BORDEN MACKENZIE ,  BIN WANG

IPC: C08B3/16 ,  C08J5/18 ,  G02B1/04 ,  C08L1/14 ,  C08B3/06 ,  C08B3/00 ,  G02F1/13363 ,  C08B3/08

CPC classification number: C08B3/16 ,  B32B2457/202 ,  C08B3/00 ,  C08B3/06 ,  C08B3/08 ,  C08J5/18 ,  C08J2301/14 ,  C08L1/14 ,  G02B1/04 ,  G02F1/13363 ,  G02F2001/133631 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/105

Abstract: Regioselectively substituted cellulose esters having a plurality of aryl-acyl substituents and a plurality of alkyl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in optical films, such as optical films having certain Nz values, −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.

公开(公告)号：US20240392089A1

公开(公告)日：2024-11-28

申请号：US18688507

申请日：2022-09-01

Applicant: Eastman Chemical Company

Inventor： BETHANY MICHELLE ADEN ,  GAURAV AMARPURI ,  GOLIATH BENIAH ,  STEPHANIE KAY CLENDENNEN ,  MICHAEL EUGENE DONELSON ,  Yichen Fang ,  THILANGA PRABHASH LIYANA ARACHCHI ,  STEVEN THOMAS PERRI ,  WAYNE KEN SHIH

IPC: C08J9/00 ,  C08J9/12

Abstract: A cellulose acetate foam having a density of less than 0.20 g/cm3 and an average foam cell size of less than 200 micrometers is disclosed. A foamable composition, a method for foaming a foam and articles including, prepared or formed from the foam are also described.