公开(公告)号：US20180207283A1

公开(公告)日：2018-07-26

申请号：US15746210

申请日：2016-07-08

Applicant: Dow Global Technologies LLC

Inventor： Matthias KNARR ,  Neal J. FETNER ,  David L. MALOTKY ,  Jin ZHAO ,  Meinolf BRACKHAGEN ,  Oliver PETERMANN ,  Roland ADDEN

IPC: A61K47/38 ,  C08L1/14 ,  A61K9/48 ,  A61K47/12 ,  A61K47/20 ,  B29C39/04 ,  B29C39/38

CPC classification number: A61K47/38 ,  A61K9/4816 ,  A61K47/12 ,  A61K47/20 ,  B29C39/04 ,  B29C39/38 ,  B29K2001/12 ,  B29L2031/7174 ,  C08L1/14 ,  C08L2203/02

Abstract: Capsule shells and coatings can be prepared from an aqueous composition comprising a) at least 20 percent, based on the total weight of the aqueous composition, of a dispersed esterified cellulose ether comprising (i) groups of the formula —C(O)—R—COOA or (ii) a combination of aliphatic monovalent acyl groups and groups of the formula —C(O)—R—COOA, wherein R is a divalent aliphatic or aromatic hydrocarbon group and A is hydrogen or a cation, b) from 0.05 to 20 percent of a salt of a fatty acid, based on the weight of the dispersed esterified cellulose ether, and c) from 0.01 to 10 percent of an anionic surfactant comprising a sulfate or sulfonate group, based on the weight of the dispersed esterified cellulose ether.