# US 10,865,149 B2 · Metal-detectable plastic material

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,865,149 B2
- Document ID: US10865149B2
- Status: Granted
- Kind: B2
- Application number: 15/792,063
- Filed: 2017-10-24
- Published: 2018-04-19
- Granted: 2020-12-15
- Earliest claimed: 2012-05-09
- Applicants: Thomas Blaszczykiewicz
- Inventors: Thomas Blaszczykiewicz
- Web page: https://patentgrep.com/patent/US10865149B2

## CPC

- C04B 35/117: Composites
- C04B 35/119: with zirconium oxide
- C04B 35/488: Composites
- C04B 35/50: based on rare-earth compounds {(non-oxide rare earth compounds C04B35/5156)}
- C04B 35/5607: {based on refractory metal carbides}
- C04B 35/5611: {based on titanium carbides}
- C04B 35/58064: {based on refractory borides}
- C04B 35/58071: {based on titanium borides}
- C04B 35/58078: {based on zirconium or hafnium borides}
- C04B 35/638: Removal thereof
- C04B 35/645: Pressure sintering
- C04B 35/6455: {Hot isostatic pressing}
- C08K 3/00: Use of inorganic substances as compounding ingredients
- C08K 3/10: Metal compounds
- H01F 1/14741: {pressed, sintered or bonded together}
- H01F 1/28: dispersed or suspended in a bonding agent
- B22F 2999/00: Aspects linked to processes or compositions used in powder metallurgy
- C04B 2235/3225: Yttrium oxide or oxide-forming salts thereof
- C04B 2235/405: Iron group metals
- C04B 2235/652: Reduction treatment (C04B2235/664 takes precedence)
- C04B 2235/6562: Heating rate
- C04B 2235/6565: Cooling rate
- C04B 2235/6567: Treatment time
- C04B 2235/6582: Hydrogen containing atmosphere
- C04B 2235/664: Reductive annealing
- C04B 2235/666: Applying a current during sintering, e.g. plasma sintering [SPS], electrical resistance heating or pulse electric current sintering [PECS]
- C04B 2235/77: Density
- C04B 2235/96: Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C22C 29/00: Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides {(C22C26/00 takes precedence)}
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- C22C: ALLOYS (treatment of alloys C21D, C22F)

## Abstract

A metal detectible plastic material, including a plurality of plastic particles defining a plastic portion and a plurality of high magnetic permeability metallic particles distributed throughout the plastic portion to define an admixture. The plastic particles and the metallic particles are generally the same size and shape, and each respective high magnetic permeability metallic particle has a magnetic permeability of at least 0.0001 H/m. The plastic particles are selected from the group consisting of high molecular mass polymers, thermoplastics, thermosetting polymers, amorphous plastics, crystalline plastics, resin-based materials, and combinations thereof.

## Claims

### Claim 1

A metal detectible plastic material, comprising:
a plurality of plastic particles defining a plastic portion; and a plurality of high magnetic permeability metallic particles distributed throughout the plastic portion and formed into a unitary body; wherein each respective high magnetic permeability metallic particle has a magnetic permeability of at least 0.0001 H/m and a relative permeability of at least 8,000; wherein the plastic particles are selected from the group consisting of high molecular mass polymers, thermoplastics, thermosetting polymers, amorphous plastics, crystalline plastics, resin-based materials, and combinations thereof; wherein the unitary body is a retaining sleeve.