US20140042700A1 - Polyurea self-sealing target - Google Patents
Polyurea self-sealing target Download PDFInfo
- Publication number
- US20140042700A1 US20140042700A1 US13/957,283 US201313957283A US2014042700A1 US 20140042700 A1 US20140042700 A1 US 20140042700A1 US 201313957283 A US201313957283 A US 201313957283A US 2014042700 A1 US2014042700 A1 US 2014042700A1
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- US
- United States
- Prior art keywords
- target
- self
- polyurea
- polymer coating
- targets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J1/00—Targets; Target stands; Target holders
- F41J1/01—Target discs characterised by their material, structure or surface, e.g. clay pigeon targets characterised by their material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J1/00—Targets; Target stands; Target holders
Definitions
- the present invention relates to targets and, more particularly, to targets that can self-seal to provide multiple use.
- Targets are used by marksmen as training aids. Initial firearms training may be performed with traditional bull's eye targets or paper, plastic or metallic silhouette targets. These targets are useful to train police, soldiers, hunters or other citizens how to aim and shoot but are limited in the number of rounds they can take before they are torn to shreds.
- FIG. 1 is a perspective view of a conventional style military target
- FIG. 2 is a detailed perspective view of the conventional style military target of FIG. 1 , after being shot;
- FIG. 3 is a perspective view of a military target coated with a self-sealing polymer according to an exemplary embodiment of the present invention
- FIG. 4 is a detailed perspective view of the military target of FIG. 3 ;
- FIG. 5 is a perspective view of the target of the present invention and a conventional target shot at in a side-by-side comparison;
- FIG. 6 is a close-up view of the target of the present invention of FIG. 5 ;
- FIG. 7 is a perspective view of an alternate target design that can be made by from the target materials and methods of the present invention.
- FIG. 8 is a perspective view of a target backer made with the polyurea polymer of the present invention.
- FIG. 9 is a perspective view of a long range target backer made with the polyurea polymer of the present invention.
- an embodiment of the present invention provides a polymer material adapted to coat a weapons training target that has the ability to self-heal and maintain its useful life significantly longer than conventional targets.
- the polymer material of the present invention includes a polyurea formed from a mixture of about 1 part isocyanate to about 1 part polyetheramine.
- the present invention further provides methods for making these targets.
- the polymer coating of the present invention can be a 100% solids, two component polymer hybrid ceramic putty.
- the polymer coating of the present invention can be formulated to contain no volatile organic compounds (VOCs) and can have good resistance to inorganic bases, acids and hydrocarbon solvents.
- VOCs volatile organic compounds
- the polymer costing of the present invention has fair resistance to oxygenated and chlorinated solvents and has good resistance to hot water up to about 180° F.
- the polymer coating can be a polyurea having the following physical properties:
- the polyurea can be made from various isocyanates and various polyetheramine, each optionally substituted with one or more substituents that may not affect the desired use of the resulting polyurea.
- the polymer does not contain a catalyst of filler.
- the polyurea polymer coating 14 of the present invention can be used to coat military training targets 10 .
- FIG. 1 a conventional military target 100 is shown.
- FIG. 2 shows this target after being struck by bullets shot at the target 100 .
- holes 102 are present in the target 100 . After use, the target 100 may fall apart and require replacement.
- FIG. 3 shows a military target 10 coated with the polymer coating 14 of the present invention.
- the bullet holes 12 are barely noticeable, if noticeable at all.
- the target 10 of the present invention, coated with the polyurea polymer coating 14 can withstand multiple uses, including hundreds of bullet strikes, without developing holes and falling apart as conventional targets do under similar use.
- the polymer coating may be disposed on the target with a thickness from about 1/16 inch to about 5/16 inch, for example. Of course, other thicknesses can be achieved and used, depending on the desired application.
- the targets 10 of the present invention were tested in cooperation with the U.S. Army at Fort Knox.
- the conventional “Ivan” target 100 (left-hand side) has several bullet holes cut through the target, causing the target to eventually develop large holes, rip, tear and collapse.
- the target 10 of the present invention retains its shape and the holes are minimal, as can be seen from the close-up view of FIG. 6 .
- the U.S. Army testing determined that the targets 10 of the present invention would last 800% longer than the conventional targets 100 in the U.S. Army's inventory. By using the targets of the present invention, not only would material cost be reduced, but the time, labor and effort involved in having personnel replace the current targets can also be significantly reduced.
- the targets of the present invention can be made with various molds 20 to provide not only enemy targets but also civilian targets, further enhancing training efforts.
- the targets of the present invention can be used as a target backing 30 , 40 , as shown in FIGS. 8 and 9 .
- a standard paper target can be attached to a target backing 30 made with the polymer of the present invention.
- Shooting ranges often use wood or cardboard target backings, which, over a limited period of time, wear away.
- the target backing using the polymer of the present invention can last significantly longer, reducing the time between when a user, such as a shooting range customer, has to wait for the target backing to be changed.
- the polyurea polymer coating of the present invention may be used to coat various targets in addition to the military targets shown in the Figures.
- the polyurea polymer coating of the present invention could be used to coat other items that may be subject to penetration, where a self-sealing feature may be desirable.
- the design is only limited by the base target molds, as the polyurea polymer coating can be applied to any number of molds and, once cured, the polyurea polymer target can be easily removed from the mold for use.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
A polymer material is adapted to coat a weapons training target that has the ability to self-heal and maintain its useful life significantly longer than conventional targets. The polymer material includes a polyurea formed from a mixture of about 1 part isocyanate to about 1 part polyetheramine. Methods for making the targets include coating a target mold with the polyurea polymer coating.
Description
- This application claims the benefit of priority of U.S. provisional patent application No. 61/681,140, filed Aug. 8, 2012, the contents of which are herein incorporated by reference.
- The present invention relates to targets and, more particularly, to targets that can self-seal to provide multiple use.
- Targets are used by marksmen as training aids. Initial firearms training may be performed with traditional bull's eye targets or paper, plastic or metallic silhouette targets. These targets are useful to train police, soldiers, hunters or other citizens how to aim and shoot but are limited in the number of rounds they can take before they are torn to shreds.
- The useful life of such targets is limited by their tendency to retain holes, crumble or shred under repeated weapons fire, leaving the military and police force with the high cost of frequent replacement.
- As can be seen, there is a need for an improved target material that may be self-sealing and able to withstand bullets passing therethrough without shredding or falling apart.
-
FIG. 1 is a perspective view of a conventional style military target; -
FIG. 2 is a detailed perspective view of the conventional style military target ofFIG. 1 , after being shot; -
FIG. 3 is a perspective view of a military target coated with a self-sealing polymer according to an exemplary embodiment of the present invention; -
FIG. 4 is a detailed perspective view of the military target ofFIG. 3 ; -
FIG. 5 is a perspective view of the target of the present invention and a conventional target shot at in a side-by-side comparison; -
FIG. 6 is a close-up view of the target of the present invention ofFIG. 5 ; -
FIG. 7 is a perspective view of an alternate target design that can be made by from the target materials and methods of the present invention; -
FIG. 8 is a perspective view of a target backer made with the polyurea polymer of the present invention; and -
FIG. 9 is a perspective view of a long range target backer made with the polyurea polymer of the present invention. - The following detailed description is of the best currently contemplated modes of carrying out exemplary embodiments of the invention. The description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the invention, since the scope of the invention is best defined by the appended claims.
- Broadly, an embodiment of the present invention provides a polymer material adapted to coat a weapons training target that has the ability to self-heal and maintain its useful life significantly longer than conventional targets. The polymer material of the present invention includes a polyurea formed from a mixture of about 1 part isocyanate to about 1 part polyetheramine. The present invention further provides methods for making these targets.
- More specifically, the polymer coating of the present invention can be a 100% solids, two component polymer hybrid ceramic putty. The polymer coating of the present invention can be formulated to contain no volatile organic compounds (VOCs) and can have good resistance to inorganic bases, acids and hydrocarbon solvents. The polymer costing of the present invention has fair resistance to oxygenated and chlorinated solvents and has good resistance to hot water up to about 180° F.
- The polymer coating can be a polyurea having the following physical properties:
-
Property Test method/units Value Tensile Strength ASTM D412 2800 Elongation (%) ASTM D412 225% Tear Strength (PLI) ASTM D-624 350 Hardness (shore A) ASTM D-2240 90 Abrasion resistance Excellent Viscosity B-side CPS 500-600 Viscosity A-side CPS 500-600 Ratio A/B BV 2:1 Density B-side 1.025 Density A-side 1.14 Flash point ASTM D-56 >720° F. VOC testing CAN/ULC-S774 P >200° F. Weight 8.5 lbs/gallon Gel time 25-30 seconds Tack Free time 10 minutes Foot traffic 1 hour - In some embodiments, the polyurea can be made from various isocyanates and various polyetheramine, each optionally substituted with one or more substituents that may not affect the desired use of the resulting polyurea. Typically, the polymer does not contain a catalyst of filler.
- Referring now to
FIGS. 3 and 4 , thepolyurea polymer coating 14 of the present invention can be used to coatmilitary training targets 10. InFIG. 1 , a conventionalmilitary target 100 is shown.FIG. 2 shows this target after being struck by bullets shot at thetarget 100. As can be seenholes 102 are present in thetarget 100. After use, thetarget 100 may fall apart and require replacement. - On the other hand,
FIG. 3 shows amilitary target 10 coated with thepolymer coating 14 of the present invention. When shot at by bullets (the same size and from the same distance as that fromFIG. 2 ), as shown inFIG. 4 , thebullet holes 12 are barely noticeable, if noticeable at all. Thetarget 10 of the present invention, coated with thepolyurea polymer coating 14, can withstand multiple uses, including hundreds of bullet strikes, without developing holes and falling apart as conventional targets do under similar use. The polymer coating may be disposed on the target with a thickness from about 1/16 inch to about 5/16 inch, for example. Of course, other thicknesses can be achieved and used, depending on the desired application. - Referring to
FIGS. 5 and 6 , thetargets 10 of the present invention were tested in cooperation with the U.S. Army at Fort Knox. As can be seen in the Figures, the conventional “Ivan” target 100 (left-hand side) has several bullet holes cut through the target, causing the target to eventually develop large holes, rip, tear and collapse. Thetarget 10 of the present invention retains its shape and the holes are minimal, as can be seen from the close-up view ofFIG. 6 . The U.S. Army testing determined that thetargets 10 of the present invention would last 800% longer than theconventional targets 100 in the U.S. Army's inventory. By using the targets of the present invention, not only would material cost be reduced, but the time, labor and effort involved in having personnel replace the current targets can also be significantly reduced. - Referring to
FIG. 7 , the targets of the present invention can be made withvarious molds 20 to provide not only enemy targets but also civilian targets, further enhancing training efforts. - In some embodiments, the targets of the present invention can be used as a target backing 30, 40, as shown in
FIGS. 8 and 9 . For example, a standard paper target can be attached to atarget backing 30 made with the polymer of the present invention. Shooting ranges often use wood or cardboard target backings, which, over a limited period of time, wear away. The target backing using the polymer of the present invention can last significantly longer, reducing the time between when a user, such as a shooting range customer, has to wait for the target backing to be changed. - The polyurea polymer coating of the present invention may be used to coat various targets in addition to the military targets shown in the Figures. In addition, the polyurea polymer coating of the present invention could be used to coat other items that may be subject to penetration, where a self-sealing feature may be desirable. The design is only limited by the base target molds, as the polyurea polymer coating can be applied to any number of molds and, once cured, the polyurea polymer target can be easily removed from the mold for use.
- It should be understood, of course, that the foregoing relates to exemplary embodiments of the invention and that modifications may be made without departing from the spirit and scope of the invention as set forth in the following claims.
Claims (11)
1. A self-sealing target comprising:
a polyurea polymer coating formed from an isocyanate and a polyetheramine in a 1:1 volumetric ratio.
2. The self-sealing target of claim 1 , wherein the polyurea is formed from a 100 percent solids, two component polymer hybrid ceramic putty.
3. The self-sealing target of claim 1 , wherein the polyurea contains no volatile organic compounds.
4. The self-sealing target of claim 1 , wherein the target is a military training target.
5. The self-sealing target of claim 1 , wherein the polyurea polymer coating is disposed on the target with a thickness from about 1/16 inch to about 5/16 inch.
6. A method for making a self-healing target, comprising:
coating a target mold with a polyurea polymer coating formed from an isocyanate and a polyetheramine in a 1:1 volumetric ratio;
allowing the polyurea polymer coating to cure; and
removing the self-healing target from the mold for use.
7. The method of claim 6 , wherein the target withstands hundreds of bullet strikes without developing holes and falling apart.
8. The method of claim 6 , wherein the polyurea polymer coating is disposed on the target mold with a thickness from about 1/16 inch to about 5/16 inch.
9. The method of claim 6 , wherein the polyurea polymer coating is formed from a 100 percent solids, two component polymer hybrid ceramic putty.
10. The method of claim 6 , wherein the polyurea polymer coating contains no volatile organic compounds.
11. The self-sealing target of claim 6 , wherein the target is a military training target.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/957,283 US20140042700A1 (en) | 2012-08-08 | 2013-08-01 | Polyurea self-sealing target |
Applications Claiming Priority (2)
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US201261681140P | 2012-08-08 | 2012-08-08 | |
US13/957,283 US20140042700A1 (en) | 2012-08-08 | 2013-08-01 | Polyurea self-sealing target |
Publications (1)
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US20140042700A1 true US20140042700A1 (en) | 2014-02-13 |
Family
ID=50065635
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US13/957,283 Abandoned US20140042700A1 (en) | 2012-08-08 | 2013-08-01 | Polyurea self-sealing target |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10539401B2 (en) | 2018-03-19 | 2020-01-21 | Chute Targets, LLC | Dynamic hanging target |
US11280594B2 (en) * | 2018-06-16 | 2022-03-22 | Nathan Boring | Reactive firearm training target providing visible feedback |
US20220099414A1 (en) * | 2020-09-28 | 2022-03-31 | Drts Llc | Reactive target system, method and kit |
US11454478B2 (en) * | 2019-06-24 | 2022-09-27 | Hornady Manufacturing Company | Projectile target with hit indicator |
USD1013090S1 (en) | 2019-01-22 | 2024-01-30 | Infrared Tools Inc. | Stretchable sleeve cover for targets of different sizes |
US11940250B2 (en) | 2019-05-14 | 2024-03-26 | Robert Woodcock | Target support, system and method |
Citations (12)
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US4773653A (en) * | 1987-01-20 | 1988-09-27 | Linatex Corporation Of America | Cover for ballistic target assembly |
US4856791A (en) * | 1988-09-01 | 1989-08-15 | Linatex Corporation Of America | Protective mat assembly and installation method therefor |
US5924694A (en) * | 1997-05-12 | 1999-07-20 | Kent; Howard Daniel | Ballistic target material |
US20020145256A1 (en) * | 2001-04-10 | 2002-10-10 | Mckenzie Sports Products | Combination three-dimensional archery target and animal decoy |
US20050204696A1 (en) * | 2003-04-07 | 2005-09-22 | B&H Coatings, Inc. | Shrapnel containment system and method for producing same |
US20060248827A1 (en) * | 2005-04-21 | 2006-11-09 | Meeker James R | Ballistic barrier system and method |
US20070059441A1 (en) * | 2005-09-14 | 2007-03-15 | Lkf, Inc. | System, method, and composition for adhering performed thermoplastic traffic control signage to pavement |
US20080008866A1 (en) * | 2002-09-09 | 2008-01-10 | Reactamine Technology, Llc | Silicone modified polyurea |
US20090036598A1 (en) * | 2007-07-31 | 2009-02-05 | 3M Innovative Properties Company | Hot melt processable polyurea copolymers and methods of their preparation and use |
US20100247904A1 (en) * | 2007-11-09 | 2010-09-30 | Larson Jim M | Flexible polyurea |
US20100326336A1 (en) * | 2009-06-26 | 2010-12-30 | Manticore International, Llc | Multi-layer panel |
US8580387B1 (en) * | 2011-09-27 | 2013-11-12 | The United States Of America As Represented By The Secretary Of The Navy | Polyurea composite armor |
-
2013
- 2013-08-01 US US13/957,283 patent/US20140042700A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4773653A (en) * | 1987-01-20 | 1988-09-27 | Linatex Corporation Of America | Cover for ballistic target assembly |
US4856791A (en) * | 1988-09-01 | 1989-08-15 | Linatex Corporation Of America | Protective mat assembly and installation method therefor |
US5924694A (en) * | 1997-05-12 | 1999-07-20 | Kent; Howard Daniel | Ballistic target material |
US20020145256A1 (en) * | 2001-04-10 | 2002-10-10 | Mckenzie Sports Products | Combination three-dimensional archery target and animal decoy |
US20080008866A1 (en) * | 2002-09-09 | 2008-01-10 | Reactamine Technology, Llc | Silicone modified polyurea |
US20050204696A1 (en) * | 2003-04-07 | 2005-09-22 | B&H Coatings, Inc. | Shrapnel containment system and method for producing same |
US20060248827A1 (en) * | 2005-04-21 | 2006-11-09 | Meeker James R | Ballistic barrier system and method |
US20070059441A1 (en) * | 2005-09-14 | 2007-03-15 | Lkf, Inc. | System, method, and composition for adhering performed thermoplastic traffic control signage to pavement |
US20090036598A1 (en) * | 2007-07-31 | 2009-02-05 | 3M Innovative Properties Company | Hot melt processable polyurea copolymers and methods of their preparation and use |
US20100247904A1 (en) * | 2007-11-09 | 2010-09-30 | Larson Jim M | Flexible polyurea |
US20100326336A1 (en) * | 2009-06-26 | 2010-12-30 | Manticore International, Llc | Multi-layer panel |
US8580387B1 (en) * | 2011-09-27 | 2013-11-12 | The United States Of America As Represented By The Secretary Of The Navy | Polyurea composite armor |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10539401B2 (en) | 2018-03-19 | 2020-01-21 | Chute Targets, LLC | Dynamic hanging target |
US11280594B2 (en) * | 2018-06-16 | 2022-03-22 | Nathan Boring | Reactive firearm training target providing visible feedback |
US11441878B2 (en) | 2018-06-16 | 2022-09-13 | Nathan Boring | Reactive firearm training target providing visible feedback |
USD1013090S1 (en) | 2019-01-22 | 2024-01-30 | Infrared Tools Inc. | Stretchable sleeve cover for targets of different sizes |
US11940250B2 (en) | 2019-05-14 | 2024-03-26 | Robert Woodcock | Target support, system and method |
US11454478B2 (en) * | 2019-06-24 | 2022-09-27 | Hornady Manufacturing Company | Projectile target with hit indicator |
US20220099414A1 (en) * | 2020-09-28 | 2022-03-31 | Drts Llc | Reactive target system, method and kit |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |