Patent US3962382A successfully refreshed from Google Patents.
US3962382A
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Process for forming a pourable plastisol nitrocellulose slurry
Assignee: United States Department of the Navy
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Filing: 1974-08-27
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Granted: 1976-06-08
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Expires: 1994-08-27
Abstract
Abstract High shear treatment of a slurry of explosive particles breaks up agglomees of the explosive particle, forms a stable slurry of fine explosive particles, and tests the slurry for water content.
Inventors
- 👤 Craig E. Johnson
- 👤 Paul F. Dendor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:20
CPC Classifications
C; C06; C06B; C06B47/00; C06B21/00; C06B21/0008; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/111
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
87 words
A method for forming a stable slurry of fine particle plastisol nitrocellulose which comprises: a. forming a water wet plastisol nitrocellulose which is dried to a water content of up to about 0.6% of water by weight of the plastisol nitrocellulose; b. adding a suitable liquid to the plastisol nitrocellulose to form a slurry, and c. subjecting the slurry to high shear agitation, and b. examining a sample of the plastisol nitrocellulose slurry to determine the pourability thereof, an unpourable slurry indicating that additional drying is necessary.
Claim 2
Independent Claim
87 words
A method for forming a stable slurry of fine particle plastisol nitrocellulose which comprises: a. forming a water wet plastisol nitrocellulose which is dried to a water content of up to about 0.6% of water by weight of the plastisol nitrocellulose; b. adding a suitable liquid to the plastisol nitrocellulose to form a slurry, and c. subjecting the slurry to high shear agitation, and b. examining a sample of the plastisol nitrocellulose slurry to determine the pourability thereof, an unpourable slurry indicating that additional drying is necessary.
Claim 3
Independent Claim
99 words
A method for determining the presence of water in a plastisol nitrocellulose slurry in an amount in excess of 0.6% of water by weight of the nitrocellulose which comprises the steps of: a. subjecting a slurry of plastisol nitrocellulose in a suitable liquid to high shear agitation; and b. examining a sample of the plastisol nitrocellulose slurry to determine the pourability thereof, a pourable slurry indicating the presence of less than 0.6% of water by weight of the plastisol nitrocellulose, and an unpourable slurry indicating the presence of greater than 0.6% of water by weight of the plastisol nitrocellulose.
Claim 4
Independent Claim
99 words
A method for determining the presence of water in a plastisol nitrocellulose slurry in an amount in excess of 0.6% of water by weight of the nitrocellulose which comprises the steps of: a. subjecting a slurry of plastisol nitrocellulose in a suitable liquid to high shear agitation; and b. examining a sample of the plastisol nitrocellulose slurry to determine the pourability thereof, a pourable slurry indicating the presence of less than 0.6% of water by weight of the plastisol nitrocellulose, and an unpourable slurry indicating the presence of greater than 0.6% of water by weight of the plastisol nitrocellulose.
References Cited (Backward Citations)
US3422170A
Cited
US3236702A
Cited
US3325315A
Cited
US3671515A
Cited
US3702271A
Cited
US3723207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |