IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0029063
(2008-02-11)
|
등록번호 |
US-8347788
(2013-01-08)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
19 |
초록
▼
A frangible projectile with a specific gravity similar to a lead projectile. The projectile comprises 34-94%, by weight, binder. The binder comprises poly ether block amide resin. The projectile further comprises 6-66%, by weight, ballast. The ballast comprises at least one member selected from a gr
A frangible projectile with a specific gravity similar to a lead projectile. The projectile comprises 34-94%, by weight, binder. The binder comprises poly ether block amide resin. The projectile further comprises 6-66%, by weight, ballast. The ballast comprises at least one member selected from a group consisting of tungsten, tungsten carbide, molybdenum, tantalum, ferro-tungsten, copper, bismuth, iron, steel, brass, aluminum bronze, beryllium copper, tin, aluminum, titanium, zinc, nickel silver alloy, cupronickel and nickel. The projectile can be prepared with a particularly preferred specific gravity of 5-14 and more preferably 11-11.5.
대표청구항
▼
1. A frangible essentially lead free projectile comprising: a binder comprising about 10-30%, by weight, a resin comprising linear chains of rigid polyamide segments interspaced with flexible poly ether segments;a ballast comprising tungsten. 2. A frangible essentially lead free projectile of claim
1. A frangible essentially lead free projectile comprising: a binder comprising about 10-30%, by weight, a resin comprising linear chains of rigid polyamide segments interspaced with flexible poly ether segments;a ballast comprising tungsten. 2. A frangible essentially lead free projectile of claim 1 further comprising a plasticizer. 3. A frangible essentially lead free projectile of claim 2 wherein said plasticizer is a sulfonamide. 4. A frangible essentially lead free projectile of claim 3 wherein said plasticizer is an aromatic sulfonamide. 5. A frangible essentially lead free projectile of claim 4 wherein said plasticizer is n-butylbenzene sulfonamide. 6. A frangible essentially lead free projectile of claim 1 wherein said ballast further comprises at least one member selected from a group consisting of tungsten carbide, molybdenum, tantalum, ferro-tungsten, copper, bismuth, iron, steel, brass, aluminium bronze, beryllium copper, tin, aluminium, titanium, zinc, nickel silver alloy, cupronickel and nickel. 7. A frangible essentially lead free projectile of claim 1 wherein ballast further comprises copper. 8. A frangible projectile comprising: 34-94%, by weight, binder wherein said binder comprises a resin comprising linear chains of rigid polyamide segments interspaced with flexible poly ether segments; and 6-66%, by weight, ballastwherein said projectile has a specific gravity of about 5 to about 14 and wherein said ballast consist essentially of tungsten.
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