Gelation of galactomannan containing water-bearing explosives

Patent · Tue May 20 00:00:00 EDT 1969

OSTI ID:5338783

Lyerly, W M

The rate of gelling in aqueous compositions consisting of a galactomannan cross-linked by chromium ions provided by a soluble chromate is accelerated by the addition of a soluble-reducing agent to a hydrosol (colloidal solution) comprising the hydrate galactomannan prior to addition of the cross-linking agent. The accelerated cross-linking system is particularly suitable for use in blasting compositions comprising water, inorganic oxidizing salt, and one or more fuels and/or sensitizers. Accelerating the rate of cross-linking finds special utility in the on-site formulation and mixing of these compositions, particularly in equipment such as water gel trucks or slurry trucks. (7 claims)

• Assignee: du Pont de Nemours Co.
• Patent Number(s): US 3445305
• OSTI ID: 5338783
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
AQUEOUS SOLUTIONS
CHEMICAL EXPLOSIVES
CHEMICAL REACTIONS
CHROMATES
CHROMIUM COMPOUNDS
CROSS-LINKING
DISPERSIONS
EXPLOSIVES
GELATION
MIXTURES
OXYGEN COMPOUNDS
POLYMERIZATION
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS