| abstract |
A composition of matter suitable for sensitizing thermoplastic compositions to the heating effects of microwave energy in which the components of the composition are (1) an alcohol amine or derivative thereof; (2) a simple or polymeric alkylene glycol or derivative thereof; (3) silica; and (4) optionally, a plastomer that is a normally solid linear or radial teleblock copolymer derived from butadiene and styrene. A method for preparing this composition as a dry, free-flowing powder by preparing a liquid mixture of the polymeric alkylene glycol or derivative and the alcohol amine or derivative which mixture is then charged into a premixed combination of granulated plastomer, if used, and silica. A method for preparing flow molding compounds by admixing a non-polar thermoplastic with a sufficient amount of the sensitizer composition to provide microwave energy sensitivity. Subjecting the flow molding composition, in a mold, to microwave energy thereby producing a flow molded composition. |