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:
Mar. 11, 2014
Filed:
Mar. 29, 2006
Larry Steffier, Cherry Hill, NJ (US);
David Kurz, Swedesboro, NJ (US);
Robert B. Raney, Newtown Square, PA (US);
Cary B. Robinson, Radnor, PA (US);
Larry Steffier, Cherry Hill, NJ (US);
David Kurz, Swedesboro, NJ (US);
Robert B. Raney, Newtown Square, PA (US);
Cary B. Robinson, Radnor, PA (US);
Mycone Dental Supply Co., Ltd., Cherry Hill, NJ (US);
Abstract
Provided is a slow-release delivery vehicle for delivering at least one active ingredient into a film coating, comprising a population of stable, homogeneously-dispersed, porous polymeric or co-polymeric beads having a network of pores, wherein the at least one active ingredient is held within the bead particles and within the network of pores and slowly released by internal flow, and wherein the network of pores is substantially non-collapsible upon removal of the active ingredient. The porous co-polymer bead preparation comprises a continuous aqueous phase solution containing a monomeric mixture of at least one polyvinylaromatic monomer and at least one porogen forming a network that comprising (i) macropores; (ii) mesopores; (iii) micropores; and (iv) gel porosity. Also provided are methods of preparing the porous co-polymer bead preparation; and for its use as a slow-release delivery vehicle.