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Coated Nanoparticles (NP) ©

2 Notes

Patentpedia Index 

3/4/2016  through 1/26/2016

Patent Abstracts

3 Patent Titles 

Topics

Notes

Subtopics

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Topics

Coating Applications   (Notes)   (Patent Titles)   (Patent Abstracts)

Nanoparticles   (2 Topics) (2 Subtopics) (3 Notes )   (199 Patent Titles )   (16 Patent Abstracts ) (2/25/2016)

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Subtopics

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2 Notes

1. Introduction

2. Antiagglomeration

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2. Antiagglomeration

Because of their small size and large surface area the usefulness of nanoparticles is limited by agglomeration making mixing or compounding difficult.  Non sticking nanoparticles are badly needed.  Barcikowski et al produced nonsticking nanoparticles with copolymers.  The nanoparticles are produced by laser ablation of a surface in a liquid solution of amphiphilic copolymers.  During ablation of metals, ceramics, and organic materials, the reactive nanoparticles become attached to the dissolved copolymers.  Acceptable polymers are random copolymers of fluoropolymers such as poly(2,3,4,5,6-pentafluorostyrene), poly(1H,1H-heptafluorobutyl methacrylate), perfluoroxyalkyl vinyl ether, poly(chlorotrifluoroethylene), polyhexafluoropropylene, polyvinylidene difluoride, and polytetrafluoroethylene.  The resulting 1 to 100 nm nanoparticles are agglomerate free and can, even, be used in master batches for compounding. 

U.S. Patent 9,243,089 (January 26, 2016), “Copolymer-Modified Nanoparticles, especially for use in Medical Articles,” Stephan Barcikowski, Christin Menneking, Markus Klapper, Klaus Mullen, Michael Hoffmann, Simon Stelzig, Dennis Langanke, and Helmut Goldmann (Germany).

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1. Introduction

As small as they are nanoparticles can be coated.  Coatings can protect the nanoparticle or its surrounding or make them more useful such as preventiong agglomeration.  (RDC 3/3/2016)

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Copyright 2016 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

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Roger D. Corneliussen, Editor
Professor Emeritus
Materials Engineering
Drexel University, Philadelphia, PA
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