US4014719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible explosive composition comprising particulate RDX, HMX or PETN and a nitrostarch binder plasticized with TEGDN or TMETN
Assignee: United States Department of the Army
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Filing: 1975-10-23
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Granted: 1977-03-29
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Expires: 1995-10-23
Abstract
Abstract Flexible, self-supporting explosive compositions composed essentially entirely of a particulate high explosive RDX, HMX and/or PETN and a nitrostarch binder plasticized with trimethylolethane trinitrate and/or triethyleneglycol dinitrate.
Inventors
- 👤 Franklin B. Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:16
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/02; C06B25/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
115 words
A flexible, self-supporting explosive composition of high power and brisance composed essentially entirely of explosive ingredients and consisting essentially of: a. from 60 to 80 weight percent of a particulate high explosive selected from the group consisting of cyclotrimethylenetrinitramine, cyclotetramethylenetetranitramine and pentaerythritol tetranitrate and mixtures thereof having an average particle size not exceeding about 25 microns; and b. from 20 to 40 weight percent of a binder system consisting essentially of nitrostarch of from 12.6 to 13.3 percent nitrogen content and a plasticizer therefor selected from the group consisting of trimethylolethane trinitrate and triethyleneglycol dinitrate and mixtures thereof, wherein the weight ratio of the nitrostarch to the plasticizer is about from 0.7/1 to 1.4/1, respectively.
Claim 2
Dependent Claim
115 words
A flexible, self-supporting explosive composition of high power and brisance composed essentially entirely of explosive ingredients and consisting essentially of: a. from 60 to 80 weight percent of a particulate high explosive selected from the group consisting of cyclotrimethylenetrinitramine, cyclotetramethylenetetranitramine and pentaerythritol tetranitrate and mixtures thereof having an average particle size not exceeding about 25 microns; and b. from 20 to 40 weight percent of a binder system consisting essentially of nitrostarch of from 12.6 to 13.3 percent nitrogen content and a plasticizer therefor selected from the group consisting of trimethylolethane trinitrate and triethyleneglycol dinitrate and mixtures thereof, wherein the weight ratio of the nitrostarch to the plasticizer is about from 0.7/1 to 1.4/1, respectively.
Claim 3
Dependent Claim
18 words
The composition of claim 1, wherein the nitrostarch has a nitrogen content of from 12.9 to 13.1 percent.
Claim 4
Dependent Claim
123 words
A flexible, self-supporting explosive composition of high power and brisance adapted for use as a flexible sheet explosive, composed essentially entirely of explosive ingredients and consisting essentially of: a. from 60 to 74 weight percent of a particulate high explosive selected from the group consisting of cyclotrimethylenetrinitramine, cyclotetramethylenetetranitramine and pentaerythritol tetranitrate and mixtures thereof having an average particle size not exceeding about 25 microns; and b. from 26 to 40 weight percent of a binder system consisting essentially of nitrostarch of from 12.6 to 13.3 percent nitrogen content and a plasticizer therefor selected from the group consisting of trimethylolethane trinitrate and triethyleneglycol dinitrate and mixtures thereof, wherein the weight ratio of the nitrostarch to the plasticizer is about from 0.7/1 to 1.2/1, respectively.
Claim 5
Dependent Claim
123 words
A flexible, self-supporting explosive composition of high power and brisance adapted for use as a flexible sheet explosive, composed essentially entirely of explosive ingredients and consisting essentially of: a. from 60 to 74 weight percent of a particulate high explosive selected from the group consisting of cyclotrimethylenetrinitramine, cyclotetramethylenetetranitramine and pentaerythritol tetranitrate and mixtures thereof having an average particle size not exceeding about 25 microns; and b. from 26 to 40 weight percent of a binder system consisting essentially of nitrostarch of from 12.6 to 13.3 percent nitrogen content and a plasticizer therefor selected from the group consisting of trimethylolethane trinitrate and triethyleneglycol dinitrate and mixtures thereof, wherein the weight ratio of the nitrostarch to the plasticizer is about from 0.7/1 to 1.2/1, respectively.
Claim 6
Dependent Claim
18 words
The composition of claim 3, wherein the nitrostarch has a nitrogen content of from 12.9 to 13.1 percent.
Claim 7
Dependent Claim
11 words
The composition of claim 3, wherein the plasticizer is trimethylolethane trinitrate.
Claim 8
Dependent Claim
11 words
The composition of claim 3, wherein the plasticizer is triethyleneglycol dinitrate.
Claim 9
Dependent Claim
20 words
The composition of claim 3, wherein at least 90% of the particulate explosive passes through a No. 325 U.S.S. sieve.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |