公开(公告)号：EP1689787A2

公开(公告)日：2006-08-16

申请号：EP04812002.6

申请日：2004-11-23

申请人： EASTMAN CHEMICAL COMPANY

发明人： BUCHANAN, Charles, Michael ,  BUCHANAN, Norma, Lindsey ,  CARTY, Susan, Northrop ,  KUO, Chung-Ming ,  LAMBERT, Juanelle Little ,  POSEY-DOWTY, Jessica Dee ,  WATTERSON, Thelma Lee ,  WOOD, Matthew Davie ,  MALCOLM, Michael Orlando ,  LINDBLAD, Margaretha Soderqvist

IPC分类号： C08B3/16 ,  C08B3/18 ,  C08B15/00 ,  C08B15/04 ,  C08B15/06 ,  C08B3/22

CPC分类号： C08B3/06 ,  A61K9/19 ,  A61K9/2054 ,  A61K9/2866 ,  A61K9/4891 ,  A61K47/38 ,  C08B3/04 ,  C08B3/08 ,  C08B3/16 ,  C08B3/22 ,  C08B3/24 ,  C08B15/02 ,  C08B15/04 ,  C08L1/10 ,  C08L1/12 ,  C08L1/14 ,  C09D17/00

摘要： This invention provides cellulose ester interpolymers, and methods of oxidizing cellulose interpolymers and cellulose ester interpolymers. The invention also provides routes to access carboxylated cellulose ester derivatives with high acid numbers wherein the carboxyl group is attached directly to the cellulose backbone by a carbon-carbon bond. Through functionalization of an intermediate aldehyde, the corresponding cationic or zwitterionic cellulose ester derivatives can also be accessed. The interpolymers of the present invention have a number of end-use applications, for example, as binder resins in various types of coating compositions and as drug delivery agents.