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:
Aug. 23, 1994
Filed:
Dec. 10, 1992
Kathleen J Illig, Phoenixville, PA (US);
Pramod Sarpotdar, Malvern, PA (US);
Sterling Winthrop Inc., New York, NY (US);
Abstract
This invention discloses a composition comprised of nanoparticles having p-isononylphenoxypoly (glycidol) as a surface modifier adsorbed on the surface thereof. In preferred embodiments, the p-isononylphenoxypoly (glycidol) provides resistance to particle aggregation during heat sterilization. In another preferred embodiment, those nanoparticles also comprise a stability enhancing compound. A preferred stability enhancing compound is albumin. This invention further discloses a method of making nanoparticles having p-isononylphenoxypoly(glycidol) as a surface modifier adsorbed on the surface, comprised of contacting said nanoparticles with p-isononylphenoxypoly(glycidol) for a time and under conditions sufficient to form a p-isononylphenoxypoly(glycidol) surface modified nanoparticle. In a preferred embodiment, the p-isononylphenoxypoly (glycidol) surface modified nanoparticle is further contacted with a stability enhancing compound for a time and under conditions sufficient to form a p-isononylphenoxypoly(glycidol) surface modified nanoparticle with a stability enhancing compound associated therewith.