Desensitized dynamites

• US 4,595,430 A
• Filed: 05/07/1984
• Issued: 06/17/1986
• Est. Priority Date: 05/07/1984
• Status: Expired due to Fees

• Current Assignee: Atlas Polar Company Limited
• Original Assignee: Atlas Powder Co.
• Inventors: Baker, James J.
• Primary Examiner(s): Lechert, Jr., Stephen J.
• Application Number:
  US06/607,773
• Time in Patent Office: 771 Days
• Field of Search: 149/101, 149/88, 149/95, 149/48, 149/53, 149/63, 149/65, 149/105, 149/102, 149/103, 149/104
• US Class Current: 149/88
• CPC Class Codes: C06B 23/00 Compositions characterised by non-explosive or non-thermic constituents in combination with specific explosives C06B25/20, C06B25/26, C06B29/04, C06B29/08, C06B31/06, C06B31/40, C06B33/02

Abstract

This invention relates to improved desensitized dynamites, the improvement comprising the incorporation of a desensitizing compound selected from the class of compounds known as diesters, polyesters, triesters except those esters containing benzyl rings, and dialkyl substituted amides or combinations thereof.

Claims

1. A dynamite composition of at least nitrate esters, oxidizer salts, carbonaceous fuel, antiacid the improvement comprising:

the incorporation of from about 0.5 to about 3.0% by weight of a desensitizer selected from the group consisting of;

##STR19## and ##STR20## and ##STR21## and ##STR22## wherein R₁ is a C₃ to C₁₀ group, but not a benzyl ring, which can contain elements other than carbon and hydrogen, and R₂ is a C₈ to C₂₀ group and R₃ is a C₁ to C₃ group.

2. The composition of claim 1 wherein said desensitizer is present in an amount from about 1.5% to about 2.5%.

3. The composition of claim 1 wherein said R₁, R₂ and R₃ contain only hydrogen and carbon.

4. The composition of claim 2 wherein said R₁, R₃, and R₂ are carbon chains containing only the elements carbon and hydrogen.

5. The composition of claim 1 wherein said R₃ groups are both methyl groups.

6. The composition of claim 2 wherein said R₃ groups are both methyl groups.

8. A dynamite composition of claim 1 wherein the desensitizer is:

##STR27## wherein R₁ is a C₃ to C₁₀ group, but not a benzyl ring, which can contain elements other than carbon and hydrogen.

9. A dynamite composition of claim 1 wherein said desensitizer is:

##STR28## wherein R₁ is a C₃ to C₁₀ group, but not a benzyl ring, which can contain elements other than carbon and hydrogen.

10. A dynamite composition of claim 1 wherein said desensitizer is:

##STR29## wherein R₁ is a C₃ to C₁₀ group, but not a benzyl ring, which can contain elements other than carbon and hydrogen.

11. A dynamite composition of claim 1 wherein said desensitizer is:

##STR30## wherein R₂ is a C₈ to C₂₀ group and R₃ is a C₁ to C₃ group.

7. The method of making a desensitized dynamite comprising admixing into a dynamite composition a sensitizer selected from the group consisting of:

##STR23## and ##STR24## and ##STR25## and ##STR26## wherein R₁ is a C₃ to C₁₀ group, but not a benzyl ring, which can contain elements other than carbon and hydrogen;

R₂ is a C₈ to C₂₀ group; and

R₃ is a C₁ to C₃ group.

12. A dynamite composition of at least nitrate esters, oxidizer salts, carbonaceous fuel, antiacid, the improvement comprising:

the incorporation of from about 0.5 to about 3.0% by weight of a desensitizer selected from the group consisting of;

##STR31## wherein x represents the average number of repeating units which make up the compound;

R₄ is a carbon-containing group, but not a benzyl ring; and

wherein said desensitizer has an average molecular weight from 1500-10,000.

13. The composition of claim 12 wherein the average molecular weight of said desensitizer has a molecular weight from 1900 to 5000.

14. The composition of claim 12 wherein R₄ is selected from the group consisting of adipates, sebacates, gluterates, oleates or stearates.

15. The composition of claim 13 wherein R₄ is selected from the group consisting of adipates, sebacates, gluterates, oleates or stearates.

16. A dynamite composition of at least nitrate esters, oxidizer salts, carbonaceous fuel, antiacid, the improvement comprising:

the incorporation of from about 0.5 to about 3.0% by weight of a desensitizer which is a triester of glycerol.

17. The composition of claim 16 wherein said triester is glyceryl triacetate.

18. The composition of claim 16 wherein said triester is glycerol tripropeonate.