Abstract: The residual chlorine content of a polyolefin-substituted carboxylic acylating agent formed by a halogen-assisted reaction of a polyalkene and at least one olefinic, monounsaturated mono- or dicarboxylic acid, anhydride or ester, is reduced when the reaction is conducted in the presence of a controlled amount of a metal compound.

Abstract: The residual chlorine content of a polyolefin-substituted carboxylic acylating agent formed by a halogen-assisted reaction of a polyalkene and at least one olefinic, monounsaturated mono- or dicarboxylic acid, anhydride or ester, is reduced when the reaction is conducted in the presence of a controlled amount of a metal compound.

Abstract: A cardiography imaging aid in the form of a breast sling is disclosed that provides for the ergonomically repositioning a breast during diagnostic imaging. The breast sling is a breast support designed to lift and hold the breast away from the chest wall so that an imaging probes may be easily placed against the chest wall. The breast sling holds the breast away to permit the imaging taking operator to obtain cardiographic images without incurring ergonomic injury that would otherwise occur to the operator's hands and wrist as a consequence of the accumulating strain resulting from repetitive lifting and holding experienced by the operator during multiple patient exams.