Abstract: The invention is directed to a thermoplastic condensation polymer chain extender additive package for reducing the molecular weight loss of a thermoplastic condensation polymer during a heated process comprising a chain extender composition selected from the group consisting of (a) a mixture of a chain extending agent and a water-bearing particulate material (b) a water-bearing particulate material surface treated with a chain extending agent or (c) a combination of (a) and (b). The water-bearing particulate material can be titanium dioxide pigment, the chain extending agent can be a multifunctional epoxy compound and the condensation polymer can be polyethylene terephthalate, polybutylene terephthalate or polycarbonate.

Abstract: The invention provides a treated powder having improved loose bulk density comprising a silanized inorganic powder treated with a long chain fatty acid or salts thereof, wherein the amount of the long chain fatty acid is about 0.25% to about 2 wt %, based on the total weight of the treated powder.

Abstract: Thermotropic liquid crystalline polymer powders are melt molded under conditions where relatively little flow of the molten LCP occurs. This results in parts with isotropic properties, and which have relatively uniform coefficients of thermal expansion in all directions. These parts are useful, for example, in electrical and electronic applications, and with the addition of certain types of resins and/or fillers for wear parts.