EP0767656A1 — Lipid based composition containing diacylglycerol, phospholipid, polar liquid and biologically active material
Assigned to Sandberg Development AB · Expires 1997-04-16 · 29y expired
What this patent protects
A biologically active composition containing (a) a diacyl glycerol, (b) a phospholipid and, optionally, (c) a polar liquid in such proportions that they together form an L2-phase or a cubic liquid crystalline phase, in which a biologically active material is dissolved or disperse…
USPTO Abstract
A biologically active composition containing (a) a diacyl glycerol, (b) a phospholipid and, optionally, (c) a polar liquid in such proportions that they together form an L2-phase or a cubic liquid crystalline phase, in which a biologically active material is dissolved or dispersed. A method for preparing the composition by mixing (a), (b) and, optionally, (c) for forming an L2-phase or a cubic liquid crystalline phase, the biologically active material being added before, during or after the formation of said phase. Use of the L2-phase or the cubic liquid crystalline phase for encapsulating a biologically active material for obtaining a preparation, which yields a controlled release of the biologically active material.
Drugs covered by this patent
- Subutex (BUPRENORPHINE) · Purdue Pharma Lp
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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