EP0518330B2 - utilisation d'un mélange comme masse pour piéger des projectiles - Google Patents

utilisation d'un mélange comme masse pour piéger des projectiles Download PDF

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Publication number
EP0518330B2
EP0518330B2 EP92109853A EP92109853A EP0518330B2 EP 0518330 B2 EP0518330 B2 EP 0518330B2 EP 92109853 A EP92109853 A EP 92109853A EP 92109853 A EP92109853 A EP 92109853A EP 0518330 B2 EP0518330 B2 EP 0518330B2
Authority
EP
European Patent Office
Prior art keywords
resin
hydrogenated
hydrocarbon
bullet
mixture
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.)
Expired - Lifetime
Application number
EP92109853A
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German (de)
English (en)
Other versions
EP0518330A2 (fr
EP0518330B1 (fr
EP0518330A3 (en
Inventor
Hans-Jürgen c/o ROTTA GMBH Anstäth
Götz Dr. c/o ROTTA GMBH Rotta
Friedrich C/O Rotta Gmbh Bartsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rotta GmbH
Original Assignee
Rotta GmbH
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Publication date
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Application filed by Rotta GmbH filed Critical Rotta GmbH
Publication of EP0518330A2 publication Critical patent/EP0518330A2/fr
Publication of EP0518330A3 publication Critical patent/EP0518330A3/de
Publication of EP0518330B1 publication Critical patent/EP0518330B1/fr
Application granted granted Critical
Publication of EP0518330B2 publication Critical patent/EP0518330B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J13/00—Bullet catchers

Definitions

  • the invention relates to the use of a mixture as Bullet trap.
  • Bullet traps are used in the manufacture of bullet traps in shooting ranges to the to destroy the kinetic energy of flying projectiles upon impact.
  • Such bullet traps are under other made of thermoplastic materials.
  • DE-OS 1 578 238 describes a bullet trap, those made of polyisobutylene alone or a mixture of polyisobutylene with butyl rubber or rubber-like Fabrics.
  • the polyisobutylene has a molecular weight of 50,000 to 100,000.
  • DE-OS 38 39 000 (EP-A-369 401) is the closest prior art and describes one Bullet trap device in which, for example, thermoplastic polyethylene, polyvinyl chloride, Polyvinyl ether, polybutylene, polyisobutylene, polyacrylic acid ester, methyl silicone or copolymers or mixtures of which come into play.
  • the bullet traps used up to now have serious disadvantages.
  • show Polyethylene, polyvinyl chloride and polyvinyl ether have a clear brittle fracture behavior, that is, the bullet trap
  • These plastics crack when the bullets penetrate and the plastic splinters.
  • Polybutylene or polyisobutylene in turn show insufficient stability and excessive flow or creep behavior, so that the construction of a self-supporting bullet trap, for example a wall of several Meters height, as is common for shooting ranges, is not possible.
  • the present invention is therefore based on the object of providing a bullet trap, which has improved painter's own shadow and which largely endangers the health of the shooters is avoided.
  • thermoplastic organic polymers and certain resins acting as tackifiers in a certain quantitative ratio includes.
  • the subject of the present invention is therefore Use of a mixture of at least one thermoplastic organic polymer and at least one Hydrocarbon resin with an average molecular weight of 200 to 3000 or at least one natural resin or one Derivative thereof in a weight ratio of thermoplastic Polymer to hydrocarbon resin or natural resin from 1:10 to 10: 1, being the thermoplastic Polymer around a mixture of at least one atactic Polypropylene and polyisobutylene acts as a bullet trap.
  • the bullet trap shows a number of compared to the known bullet trap Advantages.
  • it combines those properties in one product that are common to the known ones Bullet trapping masses could only be partially met, depending on the plastic used.
  • These properties are primarily an excellent brittle fracture behavior when penetrating and penetration of projectiles, i.e. a lack of brittleness and high stability, which the material is suitable for self-supporting bullet traps as well as an elasticity, which a allows significantly higher bombardment before the bullet trap has to be replaced, i.e. the service life is considerably increased.
  • the projectile trap catches projectiles without significantly destroying them.
  • the Projectiles easily penetrate the surface of the bullet trap without the risk of ricochets or ricochets consists. Traces of any released pollutants are largely chemically and physically in the Bullet trap held back. This results in improved health conditions in the area of shooting ranges that make use of the projectile trap according to the invention.
  • the bullet trap is an impact-resistant, tough and flexible mass that is low Surface stickiness shows.
  • the described bullet trap is liquid at temperatures above 150 ° C, so that by melting and Sediment or sieve the melt away from the penetrated bullets and reuse it can be supplied.
  • Bullet trapping materials having a viscosity of more than 5,000 mPas / 190 are particularly suitable according to the invention ° C.
  • the viscosity of the projectile long masses is preferably in the range from 5,500 to 15,000 mPas / 190 ° C.
  • the ratio of thermoplastic organic polymer to synthetic or natural resin is preferably 1: 2 to 2: 1.
  • the used Polyolefins have a softening range from 120 to 160 ° C and a viscosity range from 8 to 150 Pas.
  • the polyisobutylene preferably has a maximum molecular weight of 40,000.
  • the polymers can also be used as a mixture of several polymers of the same type, but with different molecular weights or different viscosities have to be used.
  • Suitable hydrocarbon resins according to the invention are described, for example, in ULLMANNS Encyklopadie der Technische Chemie, 4th edition, volume 12, page 539 ff. Reference is hereby made to this disclosure. Petroleum and terpene resins are preferred. Suitable hydrocarbon resins are refining hydrocarbons, in particular hydrogenated refining hydrocarbons, polycyclopentadiene and in particular hydrogenated polycyclopentadiene, aliphatic or aliphatic / aromatic hydrogenated hydrocarbon resins, and resins based on terpene and Vinyl aromatics. Such resins are commercially available e.g. Escorez (Exxon; hydrogenated cyclopentadiene resin Mn ⁇ 500), Regalite (Hercules), Eastotac (Eastman), Arkon (Arakawa), Wink Tack (Goodyear) are available.
  • Escorez Exxon; hydrogenated cyclopentadiene resin Mn ⁇ 500
  • Regalite Hercules
  • Suitable natural resins are also described in ULLMANN's Encyclopedia of Industrial Chemistry, 4. Edition, volume 12, page 525 ff. Reference is hereby made to this disclosure.
  • Suitable natural resins are, in particular, those based on rosin (rosin ester, polymerized Rosin, maleinate resins, etc.).
  • the average molecular weight of the resins used according to the invention is in the range of 200 to 3,000, preferably 300 to 2,000.
  • the resins can be used individually or preferably in mixtures.
  • a preferred mix includes hydrogenated refining hydrocarbons, hydrogenated polycyclopentadiene resins, hydrogenated hydrocarbon resins and resins based on terpene and vinyl aromatics. This mixture can be combined in an amount of 60 to 30% by weight with 40 to 70 wt .-% of a plurality of polyolefins are used.
  • the bullet trap wax, antioxidants, UV inhibitors, Polymer stabilizers, dyes, pigments, fibers (for example glass or carbon sliver fibers) and / or fillers contain.
  • Suitable fillers are inorganic fillers such as carbonate fillers, talc, mica and kaolins.
  • organic fillers are used, such as granulated or ground elastomers or Elaslomer compounds with or without filler content, and ground or granulated thermosets or thermoset compounds with or without filler.
  • the organic fillers can be made from reprocessed materials, e.g. Car tires, and partially replace the thermoplastic organic polymer (e.g. up to 20%).
  • Suitable pigments are thermally stable pigments, such as titanium dioxide or metal oxides for coloring.
  • the bullet traps are manufactured by placing the individual components in the melt is homogeneously mixed and then the melt cools down. Expediently, you will melt before pour into suitable molds after cooling.
  • the bullet trap in particular the bullet trap containing filler and dye, can be used to create shooting range walls.
  • moldings that are made from the Bullet trap were obtained, for example plates, used in a layered arrangement, so that bullets penetrate the layers one after the other.
  • the individual layers can be different be composed and have optimized functions with regard to coloring, brittle fracture, braking effect etc.
  • the viscosities given relate to the Viscosity at 190 ° C, measured with a rotary viscometer. Quantities are based on weight.
  • bullet tang masses were melted of the specified components at temperatures above 150 ° C.
  • the melt can then directly be poured into the mold that is suitable for producing, for example, a floor trap wall made of plates.
  • 250 pieces Refining hydrocarbons, hydrogenated, molecular weight 250 - 500 100 parts Resins based on terpene and vinyl aromatics, 50 parts hydrogenated polycyclopentadiene, molecular weight 500 - 1800, 100 parts atactic polypropylene, visc. 8,000 mPas 150 pieces atactic polypropylene, visc. 100,000 mPas 250 pieces atactic polypropylene, visc. 60,000 mPas 100 parts Polyisobutylene, visc. 5,000 mPas.
  • a plate-shaped bullet trap (15 cm thick) was produced from this bullet trap. At this plate was then a measurement of the pollutant concentrations occurring during bombardment by suction the air directly at the entry points. It has been shown that the concentration of formaldehyde pollutants, Acetaldehyde, propionaldehyde, acrolein, n-heptane, n-hexane, cyclohexane, cyclohexene, octane, acetone, tetrahydrofuran, 2-butanone and 2-hexanone well below 25% of the currently valid MAK value (maximum workplace concentration) lie. For some substances, the concentrations are below the analytical detection limit. The Measurement results were obtained under extreme conditions that do not occur under normal circumstances. The projectile trap according to the invention is therefore harmless with regard to the emission of substances harmful to health.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Developing Agents For Electrophotography (AREA)

Claims (7)

  1. Utilisation, en tant que masse pour piéger des projectiles, d'un mélange à base d'au moins un polymère organique thermoplastique et d'au moins une résine d'hydrocarbure avec un poids moléculaire moyen de 200 à 3000 ou d'au moins une résine naturelle ou d'un dérivé de celle-ci dans un rapport de poids entre le polymère thermoplastique et la résine d'hydrocarbure ou la résine naturelle de 1/10 à 10/1, où il s'agit, en ce qui concerne le polymère thermoplastique, d'un mélange d'au moins un propylène atactique et d'un polyisobutylène.
  2. Utilisation selon la revendication 1, caractérisée en ce que le rapport en poids entre le polymère thermoplastique et la résine d'hydrocarbure ou la résine naturelle est de 1/2 à 2/1.
  3. Utilisation selon la revendication 1 ou 2, caractérisée en ce que la résine d'hydrocarbure est une résine de pétrole ou une résine terpénique.
  4. Utilisation selon la revendication 3, caractérisée en ce que, concernant la résine d'hydrocarbure, il s'agit d'hydrocarbures de raffinage, d'hydrocarbures de raffinage hydrogénés, de polycyclopentadiène, de polycyclopentadiène hydrogéné, de résines d'hydrocarbures hydrogénées aliphatiques ou aliphatiques/aromatiques, ou de résines à base de terpène et d'aromatiques vinyliques.
  5. Utilisation selon la revendication 4, caractérisée en ce que la masse pour piéger des projectiles contient 30 à 60 % en poids d'un mélange de résine à base d'hydrocarbures de raffinerie hydrogénés, de résines hydrogénées de polycyclopentadiène, de résines d'hydrocarbures hydrogénées et de résines à base de terpène et d'aromatiques vinyliques.
  6. Utilisation selon la revendication 5, caractérisée en ce que la masse pour piéger des projectiles contient 40 à 70 % en poids d'un mélange à base d'au moins un polypropylène atactique et de polyisobutylène.
  7. Utilisation selon l'une des revendications précédentes, caractérisée en ce que la masse pour piéger des projectiles contient en plus une charge et/ou un pigment.
EP92109853A 1991-06-12 1992-06-11 utilisation d'un mélange comme masse pour piéger des projectiles Expired - Lifetime EP0518330B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4119397A DE4119397A1 (de) 1991-06-12 1991-06-12 Geschossfangmasse
DE4119397 1991-06-12

Publications (4)

Publication Number Publication Date
EP0518330A2 EP0518330A2 (fr) 1992-12-16
EP0518330A3 EP0518330A3 (en) 1993-07-07
EP0518330B1 EP0518330B1 (fr) 1996-01-10
EP0518330B2 true EP0518330B2 (fr) 2001-11-21

Family

ID=6433785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109853A Expired - Lifetime EP0518330B2 (fr) 1991-06-12 1992-06-11 utilisation d'un mélange comme masse pour piéger des projectiles

Country Status (3)

Country Link
EP (1) EP0518330B2 (fr)
AT (1) ATE132965T1 (fr)
DE (2) DE4119397A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027111A1 (fr) * 1993-05-18 1994-11-24 Scovati Italia S.R.L. Piege a projectiles
DE19506716C2 (de) * 1994-03-05 1999-06-10 Akzo Nobel Nv Geschoßfangvorrichtung
DE4426834A1 (de) * 1994-03-22 1995-09-28 Linnhoff Maschinenbau Verfahren und Vorrichtung zur Gewinnung von Metallpartikeln, die in einem Kunststoff eingebettet sind, aus dem Kunststoff heraus oder zur Gewinnung eines Kunststoffes, in den Metallpartikel eingebettet sind, von den Metallpartikeln befreit oder zur Trennung eines von Metallpartikeln durchsetzten Kunststoffes in den Metallpartikelanteil und den Kunststoffanteil
DE9407238U1 (de) * 1994-04-30 1994-07-21 Gerd Bücheler Schießanlagen und Schießstandbau, 70376 Stuttgart Geschoßfangvorrichtung
DE19707462C1 (de) * 1997-02-25 1998-06-18 Bayerische Motoren Werke Ag Gepanzertes Kraftfahrzeug mit verstärkten Karosseriebauteilen
DE10330166A1 (de) * 2003-07-04 2005-02-03 Daimlerchrysler Ag Gepanzertes Fahrzeug
DE202005002672U1 (de) 2005-02-19 2005-05-19 Gerd Bücheler Schießanlagen und Schießstandbau Abbremsvorrichtung
DE102006048893A1 (de) * 2006-10-17 2008-04-24 Clariant International Limited Geschossfangmasse mit verbessertem Abfangverhalten für Geschossprojektile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247142A (en) † 1961-12-22 1966-04-19 Eastman Kodak Co Hot melt compositions comprising polyethylene, hydrocarbon resin and acetylated monoglyceride
DE1470941A1 (de) † 1963-09-04 1969-04-10 Du Pont Heisssiegelbare Masse
DE1594263A1 (de) † 1965-03-10 1971-02-18 Sun Oil Co Heissschmelzklebstoff
DE2053365A1 (de) † 1970-10-30 1972-05-04 Veba Chemie AG, 4660 Gelsenkirchen Buer Heiss Schmelzbeschichtungsmassen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1578238A1 (de) * 1967-02-27 1971-07-29 Chem Fab Gustav Drengwitz Kugelfangmasse
DE2826646A1 (de) * 1978-06-19 1980-01-03 Karlpeter Ing Grad Esser Geschossfang fuer schiessanlagen
DE3212781A1 (de) * 1982-04-06 1983-10-06 Gfl Sportstaettenbau Gmbh Kugelfang, insbesondere fuer solche schiessanlagen, die in geschlossenen raeumen angelegt sind
DE3442984A1 (de) * 1984-11-26 1986-05-28 Karl 5450 Neuwied Henseler Geschossfang fuer schiessanlagen
US4773653A (en) * 1987-01-20 1988-09-27 Linatex Corporation Of America Cover for ballistic target assembly
US4850596A (en) * 1987-12-21 1989-07-25 Olund William R Archery target
US4856791A (en) * 1988-09-01 1989-08-15 Linatex Corporation Of America Protective mat assembly and installation method therefor
DE3839000A1 (de) * 1988-11-18 1990-05-23 Sis Verwaltungsgesellschaft Fu Geschossfangvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247142A (en) † 1961-12-22 1966-04-19 Eastman Kodak Co Hot melt compositions comprising polyethylene, hydrocarbon resin and acetylated monoglyceride
DE1470941A1 (de) † 1963-09-04 1969-04-10 Du Pont Heisssiegelbare Masse
DE1594263A1 (de) † 1965-03-10 1971-02-18 Sun Oil Co Heissschmelzklebstoff
DE2053365A1 (de) † 1970-10-30 1972-05-04 Veba Chemie AG, 4660 Gelsenkirchen Buer Heiss Schmelzbeschichtungsmassen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Ralf Jordan, Klebstoff-Monographien, Band 4a "Schmelzklebstoffe, Rohstoffe, Herstellung", Hinterwalder-Verlag, München, 1985, Seiten 1-54 †
Ullmanns Enzyklopädie der Technischen Chemie, 4.Auflage, Band 12, Seiten 539-545 †

Also Published As

Publication number Publication date
DE59204979D1 (de) 1996-02-22
DE4119397A1 (de) 1992-12-17
EP0518330A2 (fr) 1992-12-16
ATE132965T1 (de) 1996-01-15
EP0518330B1 (fr) 1996-01-10
EP0518330A3 (en) 1993-07-07

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