ProtectiveFilmCoatingwithKollidon30
Shellac
1.Formulation
Shellac....................................................177g Kollidon25or30[1]..................................20g SicovitTitaniumdioxide[1].......................185g Talc..........................................................65g Cetylalcohol.............................................15g Sorbitanetrioleate.....................................30g SicovitIronoxide[1]..................................50g Isopropanolorethanol.............................458g 2.Manufacturingofthecoatingsuspension
Dissolveshellacandsorbitaneoleateinthewarmsolventandthen
Kollidonandcetylalcohol.Addtitaniumdioxide,talcandtheironoxide
andmixinthecolloidmill.
3.Applicationofthecoatingsuspension
About50gsuspensionwereappliedto 1kgoftabletcoresinaconventional
coatingpanorinaAccelaCotapan（1–2mgfilmformers/cm2）
关键字：protective film coating
