The United States of America as represented by the Secretary of the Army
대리인 / 주소
Goldfine, Henry S.
인용정보
피인용 횟수 :
1인용 특허 :
3
초록▼
By using generally known chemically, physically, or a combination thereof, means to foam celluloid, a foamed celluloid material is invented with a density of less than about 1.25 gm/cm3, which material is relatively low cost, very fast burning, very low residue, easily moldable, and which material e
By using generally known chemically, physically, or a combination thereof, means to foam celluloid, a foamed celluloid material is invented with a density of less than about 1.25 gm/cm3, which material is relatively low cost, very fast burning, very low residue, easily moldable, and which material exhibits good mechanical strength, and provides a good water barrier. These characteristics make this foamed celluloid a preferred choice for military artillery propellant charge bags, military mortar and civilian fireworks increment charges, combustible cartridges, flare housings, igniter tubes, as well as, closure disks, combustible enclosures and components thereof, among other applications.
대표청구항▼
1. A combustible thermoplastic material comprising foamed celluloid having a density of about 1.25 gm/cm3 to about 0.05 gm/cm3, and which material is fast burning and low residue. 2. The low residue, fast burning combustible thermoplastic material of claim 1, wherein the foamed celluloid has a densi
1. A combustible thermoplastic material comprising foamed celluloid having a density of about 1.25 gm/cm3 to about 0.05 gm/cm3, and which material is fast burning and low residue. 2. The low residue, fast burning combustible thermoplastic material of claim 1, wherein the foamed celluloid has a density selected from the group consisting of about 1.25 gm/cm3, about 0.6 gm/cm3, about 0.1 gm/cm3, and about 0.05 gm/cm3. 3. The low residue, fast burning combustible thermoplastic material of claim 1, where the foamed celluloid is used in a container selected from the usages consisting of an artillery propellant bag, a military mortar increment charge, a fireworks increment charge, a flash bang, a flare, an igniter tube, and a combustible cartridge. 4. The low residue, fast burning combustible thermoplastic material of claim 1, wherein the foamed celluloid is formed as a munition closure disk. 5. The low residue, fast burning combustible thermoplastic material of claim 1, wherein the container is formed as a charge bag. 6. A foamed celluloid material which comprises nitrocellulose, a plasticizer and a stabilizer; wherein the foamed celluloid has a density of about 1.25 gm/cm3 to about 0.05 gm/cm3, and which material is fast burning and low residue. 7. The low residue, fast burning, foamed celluloid material of claim 6, wherein the plasticizer is selected from the group consisting of camphor, naphthalene, naphtyl acetate, phenoloxylacetic acid, naphtholoxylacetic acid, and their anhydrides and esters, naphthelketone, dinaphthylketone, and derivatives of aromatic sulpho acids. 8. The low residue, fast burning, foamed celluloid material of claim 6, wherein the stabilizer is selected from the group consisting of 1-methyl-3,3-diphenylurea and ethyl centralite. 9. The low residue, fast burning, foamed celluloid material of claim 6, wherein the nitrocellulose has a about 10.0 to about 13.6 wt % nitration level. 10. The low residue, fast burning, foamed celluloid material of claim 6, wherein the nitrocellulose has an about 10.6 to about 11.2 wt nitration level. 11. A foamed celluloid material which comprises nitrocellulose, a plasticizer, a stabilizer and a chemical blowing agent; wherein the foamed celluloid has a density of about 1.25 gm/cm3 to about 0.05 gm/cm3, and which material is fast burning and low residue. 12. The low residue, fast burning, foamed celluloid material of claim 11, wherein the chemical blowing agent is selected from the group consisting of bi-carbonate, phenyl tetrazole, azodicarbonamide, and sulfonyl hydrazide. 13. The low residue, fast burning combustible thermoplastic material of claim 1, wherein the burn velocity is as much as over 40 times that of non-foamed celluloid.
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이 특허에 인용된 특허 (3)
Swartout Terry L. (Seminole FL), Combustible cartridge case base.
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