Abstract: An improved rock-bolt grouting composition based on a cross-linkable unsaturated polymerizable polyester resin formulation in one component and a peroxide catalyst in a separate component, contains diffused water, preferably in the catalyst component, in an amount sufficient to provide a weight ratio of resin formulation to water no greater than about 6.0, and a particulate solid filler in both components in an amount sufficient to provide a weight ratio of filler to resin formulation of at least about 3.0. The filled, water-extended composition generally expands during the cross-linking of the polymer, and greater interfacial strength in smooth-walled boreholes has been found. Compositions in which water is the catalyst vehicle are preferred because their shelf life is better than those containing an oil-based catalyst.

Abstract: An ocean thermal engine utilizing the thermocline and hydrostatic pressure of the ocean to change the buoyancy of a series of rigid containers having good thermal conductivity fitted with means for confining a thermodynamic fluid capable of vaporizing and condensing within the temperature range of the ocean thermocline. The rigid containers are arranged in spaced relation around rotatable supporting means so that the change in buoyancy of the containers causes said means to rotate and to drive a generator if electrical energy is desired.