US4163681A
Expired / Lapsed
US
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Desensitized explosives and castable thermally stable high energy explosive compositions therefrom
Assignee: United States Department of the Navy
•
Filing: 1970-04-15
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Granted: 1979-08-07
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Expires: 1990-04-15
Abstract
Abstract This patent describes a novel desensitized explosive wherein a normally sensitive solid explosive material is coated with an effective desensitizing amount of a phlegmatizing agent which contains functional groups reactive with one or more ingredients conventionally used in forming a thermally stable, crosslinked solid composite explosive. The present invention also includes thermally stable, crosslinked solid composite explosive in which said desensitized explosives are an integral part. Still further this invention includes the method of coating the as-received explosive material with said phlegmatizing agent, preferably in a drying vessel at elevated temperatures.
Inventors
- 👤 Julius Rothenstein
- 👤 Samuel Goldhagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:20
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/005; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/113; Y10S149/114; Y10S149/115
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
47 words
A novel desensitized explosive comprising a normally sensitive solid explosive material coated with an effective desensitizing amount of a phlegmatizing agent which contains functional groups reactive with at least one ingredient conventionally used in forming a thermally stable, crosslinked solid composite explosive, and which is polyvinyl alcohol.
Claim 2
Dependent Claim
47 words
A novel desensitized explosive comprising a normally sensitive solid explosive material coated with an effective desensitizing amount of a phlegmatizing agent which contains functional groups reactive with at least one ingredient conventionally used in forming a thermally stable, crosslinked solid composite explosive, and which is polyvinyl alcohol.
Claim 3
Dependent Claim
75 words
A novel desensitized explosive comprising a normally sensitive solid explosive material selected from the group consisting of RDX, HMX, perchlorates and mixtures thereof coated with an effective desentizing amount of a phlegmatizing agent which contains functional groups reactive with at least one ingredient conventionally used in forming a thermally stable, crosslinked solid composite explosive, and which is selected from the group consisting of a polyoxyethylene glycol, polycarboxylic acids, glycerol monoricinoleate, polyvinyl alcohol and mixtures thereof.
Claim 4
Dependent Claim
75 words
A novel desensitized explosive comprising a normally sensitive solid explosive material selected from the group consisting of RDX, HMX, perchlorates and mixtures thereof coated with an effective desentizing amount of a phlegmatizing agent which contains functional groups reactive with at least one ingredient conventionally used in forming a thermally stable, crosslinked solid composite explosive, and which is selected from the group consisting of a polyoxyethylene glycol, polycarboxylic acids, glycerol monoricinoleate, polyvinyl alcohol and mixtures thereof.
Claim 5
Dependent Claim
14 words
The desensitized explosive of claim 2 wherein said phlegmatizing agent is a polyoxyethylene glycol.
Claim 6
Dependent Claim
13 words
The desensitized explosive of claim 2 wherein said phlegmatizing agent is polyvinyl alcohol.
Claim 7
Dependent Claim
24 words
The desensitized explosive of claim 2 wherein said normally sensitive solid explosive is selected from the group consisting of RDX, HMX and mixtures thereof.
Claim 8
Dependent Claim
14 words
The desensitized explosive of claim 5 wherein said phlegmatizing agent is a polyoxyethylene glycol.
Claim 9
Dependent Claim
70 words
A novel solid homogeneous composite explosive comprising a crosslinked polymeric binder in which a normally sensitive solid explosive material is coated with an effective desensitizing amount of a phlegmatizing agent which is selected from the group consisting of a polyoxyethylene glycol, polycarboxylic acids, glycerol monoricinoleate, polyvinyl alcohol and mixtures thereof, wherein the coated desensitized solid explosive is intergrally and chemically bound by reaction of the coating with the binder ingredient.
Claim 10
Dependent Claim
70 words
A novel solid homogeneous composite explosive comprising a crosslinked polymeric binder in which a normally sensitive solid explosive material is coated with an effective desensitizing amount of a phlegmatizing agent which is selected from the group consisting of a polyoxyethylene glycol, polycarboxylic acids, glycerol monoricinoleate, polyvinyl alcohol and mixtures thereof, wherein the coated desensitized solid explosive is intergrally and chemically bound by reaction of the coating with the binder ingredient.
Claim 11
Dependent Claim
17 words
The novel solid homogeneous composite explosive of claim 7 wherein the phlegmatizing agent is a polyoxyethylene glycol.
Claim 12
Dependent Claim
35 words
A novel solid homogeneous composite explosive comprising a crosslinked polymeric binder in which the coated desensitized solid explosive of claim 2 is integrally and chemically bound by reaction of the coating with the binder ingredient.
Claim 13
Dependent Claim
35 words
A novel solid homogeneous composite explosive comprising a crosslinked polymeric binder in which the coated desensitized solid explosive of claim 3 is integrally and chemically bound by reaction of the coating with the binder ingredient.
Claim 14
Independent Claim
54 words
A method of desensitizing a normally sensitive solid explosive material selected from the group consisting of HMX, RDX, perchlorates and mixtures thereof, comprising coating said sensitive solid explosive with an effective amount of a desensitizing agent selected from the group consisting of a polyoxyethylene glycol, polycarboxylic acids, glycerol monoricinoleate, polyvinyl alcohol and mixtures thereof.
Claim 15
Independent Claim
54 words
A method of desensitizing a normally sensitive solid explosive material selected from the group consisting of HMX, RDX, perchlorates and mixtures thereof, comprising coating said sensitive solid explosive with an effective amount of a desensitizing agent selected from the group consisting of a polyoxyethylene glycol, polycarboxylic acids, glycerol monoricinoleate, polyvinyl alcohol and mixtures thereof.
Claim 16
Dependent Claim
23 words
The method of claim 11 wherein said normally sensitive solid explosive is selected from the group consisting of RDX, HMX, and mixtures thereof.
Claim 17
Dependent Claim
13 words
The method of claim 11 wherein said desensitizing agent is a polyoxyethylene glycol.
Claim 18
Dependent Claim
13 words
The method of claim 12 wherein said desensitizing agent is a polyoxyethylene glycol.
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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) | 1982-08-06 | 1983-02-05 | 1983-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-06 | 1987-02-05 | 1987-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-06 | 1991-02-05 | 1991-08-07 | $7700.00 | Window Closed / Lapsed |