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:
Jun. 25, 1985
Filed:
Apr. 20, 1983
Applicant:
Inventors:
Wolfgang Lange, Obernburg, DE;
G J Boer, Muidenberg, NL;
Assignee:
Akzo NV, Arnhem, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61J / ; A61K / ;
U.S. Cl.
CPC ...
424 16 ; 424 19 ; 424 21 ; 424 35 ; 4283155 ; 604890 ; 604892 ;
Abstract
A composite body for long-term delivery of effective substances has a carrier for effective substances composed of a microporous polymer, and a coating composed of cellulose nitrate. The carrier can be composed of a thermoplastic polymer with a substantially isotropic microporous cellular polymer structure with a plurality of substantially spherical cells of a mean diameter between 0.5 and 100 micrometers. The cells are connected with one another by pores. The composite body serves for long-term delivery of peptides, hormones, neurotransmitters, particularly vasopressin and oxytocin.