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1. WO2016144811 - COATED MAGNETIC PARTICLE AND METHODS OF MAKING AND USING THE SAME

Publication Number WO/2016/144811
Publication Date 15.09.2016
International Application No. PCT/US2016/021024
International Filing Date 04.03.2016
IPC
H01F 1/00 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
H01F 7/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
02Permanent magnets
H01F 1/06 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01of inorganic materials
03characterised by their coercivity
032of hard-magnetic materials
04metals or alloys
06in the form of particles, e.g. powder
H01F 1/053 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01of inorganic materials
03characterised by their coercivity
032of hard-magnetic materials
04metals or alloys
047Alloys characterised by their composition
053containing rare earth metals
H01F 41/00 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
B82Y 5/00 2011.01
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE  OR TREATMENT OF NANOSTRUCTURES
5Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
CPC
B82Y 25/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
25Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
H01F 1/0054
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
0036showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity,
0045Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use
0054Coated nanoparticles, e.g. nanoparticles coated with organic surfactant
Applicants
  • SDCMATERIALS, INC. [US]/[US]
Inventors
  • BIBERGER, Maximilian, A.
  • KEARL, Bryant
  • LEAMON, David
Agents
  • CERPA, Robert K.
Priority Data
62/129,55106.03.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COATED MAGNETIC PARTICLE AND METHODS OF MAKING AND USING THE SAME
(FR) PARTICULE MAGNÉTIQUE REVÊTUE ET SES PROCÉDÉS DE FABRICATION ET D'UTILISATION
Abstract
(EN)
The present disclosure relates to nano-sized magnetic particles, such as neodymium-iron-boron rare earth magnetic particles, and encapsulated magnetic nanoparticles, which include a magnetic nanoparticle core encapsulated by a protective layer. Magnetic nanoparticles can be encapsulated in, for example, a silane-derivative protective layer or a phosphate-containing protective layer. Also provided are nanocomposite permanent magnets comprising magnetic nanoparticles and encapsulated magnetic nanoparticles. Further provided are methods of making and using the same.
(FR)
La présente invention concerne des particules magnétiques nanométriques, telles que des particules magnétiques aux terres rares néodyme-fer-bore, et des nanoparticules magnétiques encapsulées, qui comprennent un noyau de nanoparticule magnétique encapsulé par une couche de protection. Des nanoparticules magnétiques peuvent être encapsulées, par exemple, dans une couche de protection en dérivé du silane ou dans une couche de protection contenant du phosphate. L'invention concerne également des aimants permanents nanocomposites comprenant des nanoparticules magnétiques et des nanoparticules magnétiques encapsulées. L'invention concerne en outre des procédés de fabrication et d'utilisation associés.
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