초록 ▼

A chemical heater combines cellulosic material and a hypochlorite salt in the presence of water for exothermic reaction. Although sodium hypochlorite may be used, calcium hypochlorite is the preferred hypochlorite salt as a reactant. The preferred cellulosic material is particles of cotton plants, i

A chemical heater combines cellulosic material and a hypochlorite salt in the presence of water for exothermic reaction. Although sodium hypochlorite may be used, calcium hypochlorite is the preferred hypochlorite salt as a reactant. The preferred cellulosic material is particles of cotton plants, in particular lint fibers recovered from gin trash, or non-lint, lignocellulose particles. The lignocellulose particles are preferably soaked with water prior to addition of the hypochlorite salt. Each subsequent addition of similar amounts of the hypochlorite salt to the soaked lignocellulose particles results in a substantially equivalent exothermic reaction, until cellulose in the lignocellulose is exhausted.

대표청구항 ▼

A heat pack comprising: a. a flexible, substantially rupture and puncture resistant, fluid-tight envelope, b. at least one rupturable fluid-tight container within the envelope, c. cellulosic material within the envelope and without the container, d. water within the container, and e. a hypochlorite

A heat pack comprising: a. a flexible, substantially rupture and puncture resistant, fluid-tight envelope, b. at least one rupturable fluid-tight container within the envelope, c. cellulosic material within the envelope and without the container, d. water within the container, and e. a hypochlorite salt within the envelope, with f. the hypochlorite salt being selected from the group consisting of sodium hypochlorite and calcium hypochlorite.