REGIOSELECTIVELY SUBSTITUTED CELLULOSE ESTERS AND FILMS MADE THEREFROM
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United States of America Patent
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Issued Date -
Jul 28, 2022
app pub date -
May 4, 2021
filing date -
Apr 22, 2016
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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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International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- C08B:POLYSACCHARIDES; DERIVATIVES THEREOF
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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