The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 1978
Filed:
Sep. 19, 1975
Applicant:
Inventors:
Sumio Watanabe, Honjo, JP;
Yasuhiko Mizuno, Honjo, JP;
Masanori Kayano, Honjo, JP;
Yoshio Ishino, Kumagaya, JP;
Assignee:
Eisai Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
264 13 ;
Abstract
A hollow particulate for gastric medicines and other durable medicines suspendable in the gastric juice and remainable in the stomach for a long period of time is provided which has been prepared by dissolving ethylcellulose in a lower chlorinated hydrocarbon, or a mixed solution of the lower chlorinated hydrocarbon and a lower chlorofluorinated hydrocarbon and/or water, so that the concentration of ethylcellulose is 0.5 - 4% by weight on the basis of the total weight of the resulting solution, and then spray-drying the solution at an inlet temperature of higher than 50.degree. C.