A tungsten-precursor composite having a polymer matrix and a tungsten precursor therein. The tungsten precursor may be tungsten oxide, ammonium paratungstate, ammonium metatungstate or other precursor or combination of tungsten precursors. The polymer may be any of a very wide range of materials or
A tungsten-precursor composite having a polymer matrix and a tungsten precursor therein. The tungsten precursor may be tungsten oxide, ammonium paratungstate, ammonium metatungstate or other precursor or combination of tungsten precursors. The polymer may be any of a very wide range of materials or combinations thereof. Binder, secondary fillers or other third components may be added. By means of use of various tungsten precursors, polymers, and third components, the physical, radiological and electrical properties of the finished products may be tailored to achieve desired properties. In addition, the invention teaches that radiation shielding, insulators, and combined radiation shield/insulators may be fashioned from the composite. A wide range of production methods may be employed, including but not limited to liquid resin casting.
대표청구항▼
A tungsten-precursor composite having a polymer matrix and a tungsten precursor therein. The tungsten precursor may be tungsten oxide, ammonium paratungstate, ammonium metatungstate or other precursor or combination of tungsten precursors. The polymer may be any of a very wide range of materials or
A tungsten-precursor composite having a polymer matrix and a tungsten precursor therein. The tungsten precursor may be tungsten oxide, ammonium paratungstate, ammonium metatungstate or other precursor or combination of tungsten precursors. The polymer may be any of a very wide range of materials or combinations thereof. Binder, secondary fillers or other third components may be added. By means of use of various tungsten precursors, polymers, and third components, the physical, radiological and electrical properties of the finished products may be tailored to achieve desired properties. In addition, the invention teaches that radiation shielding, insulators, and combined radiation shield/insulators may be fashioned from the composite. A wide range of production methods may be employed, including but not limited to liquid resin casting. f the total composite volume.12. A radiation shield material comprising: a) a polymer matrix and b) a tungsten-precursor within the polymer matrix c) a third material wherein the polymer matrix comprises Novolac in an approximate amount of 64% of the total composite volume, and further wherein the tungsten precursor comprises blue tungsten oxide powder in an approximate amount of 16% by volume, and further wherein the third component comprises hydrated alumina in an approximate amount of 20% by volume. 13. An electrical insulator for an ion source, the insulator comprising: a. a polymer matrix and b. a tungsten-precursor within the polymer matrix, wherein the tungsten precursor comprises at least one member selected from the following group: ammonium paratungstate, ammonium metatungstate, blue tungsten oxide, combinations thereof and combinations thereof with yellow tungsten oxide, the tungsten-precursor in an approximate amount of at least 45% by volume. 14. The electrical insulator of claim 13, wherein the body has a shape selected from the following group: generally annular bodies, generally cylindrical bodies, three dimensional conic sections, regular prisms, irregular prisms and combinations thereof.15. A method of making a radiation shield comprising: a) combining a tungsten precursor and a polymer into a composite wherein the tungsten precursor comprises at least one member selected from the following group: ammonium paratungstate, ammonium metatungstate, blue tungsten oxide, combinations thereof and combinations thereof with yellow tungsten oxide, in an approximate amount of at least 45% by volume; and b) forming the composite into a desired shape. 16. The method of claim 15, wherein the step of forming the composite into the desired shape further comprises one member selected from the following group: casting, molding, machining, extrusion, aggregation, liquid resin casting, injection molding, compression molding, transfer molding, pultrusion, centrifugal molding, calerendering, filament winding and combinations thereof.
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이 특허에 인용된 특허 (8)
Eichmiller Frederick (Ijamsville MD), Device and method for shielding healthy tissue during radiation therapy.
McAllister Jerome W. (Hudson WI) Kinzer Kevin E. (Cottage Grove WI) Mrozinski James S. (Oakdale MN) Johnson Eric J. (Woodbury MN) Dyrud James F. (New Richmond WI), Particle-filled microporous materials.
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