Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carbohydrate or derivative as a reactant
Patent
1992-11-16
1997-07-01
Mullis, Jeffrey C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carbohydrate or derivative as a reactant
536119, 5361231, C08G 63668
Patent
active
056440120
ABSTRACT:
A polyester represented by the following general formula (I) and a copolymer which comprises two structural units represented by the following general formulae (I') and (II). ##STR1## and a coating material for use in large intestine-selective drug release pharmaceutical preparations, which contains the above polyester and/or copolymer. The polyester and copolymer of the present invention contain a saccharide residue which is hydrolyzed and/or assimilated specifically in the large intestine, drugs contained in solid oral pharmaceutical administration pharmaceutical preparations coated with the coating material of the present invention are not decomposed or absorbed by digestive organs other than the large intestine, but instead are released selectively and therefore in a high concentration in the large intestine.
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Iritani Koji
Kawasaki Tetsuya
Masuda Shigeki
Tani Nobutaka
Yano Yoshiaki
Kanegafuchi Kagaku Kogyo & Kabushiki Kaisha
Mullis Jeffrey C.
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