Explosives having powdered ferrite magnet as a tracer dispersed therethrough and a method for producing the same
US4363678A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1980 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Dec 17, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S149/123
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An explosive having a relatively small amount of powdered ferrite magnet dispersed therethrough, each magnet particle coated with a resin coating which is stable for the explosive material on the entire outer surface thereof. The resultant explosive is readily detected by a magnetic detector and is stable for a long time storage. As the resin coating, methyl methacrylate resin, styrene resin, acrylonitril resin, butadiene resin, vinyl acetate resin, acrylic acid resin, methylacrylate resin and/or the other vinyl resin is used. The resin coating is colored to color the explosives so that explosives may be distinctly visible, readily detected and identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.