Abstract: A system and method for additive manufacturing are described. A system includes an additive manufacturing tooling head configured to deposit a heated material to form a workpiece, a tooling controller configured direct the tooling head through a sequence of additive manufacturing process actions, and a chamber comprising a build surface to support the workpiece during the sequence of additive manufacturing process actions. At least one thermal medium is positioned within the chamber. The tooling controller is further configured to determine a thermal gradient between the workpiece and the portion of the heated material based on the temperature of the workpiece and the temperature of the portion of the heated material to be deposited, and control the at least one thermal medium contained within the chamber over time based at least in part on a predetermined thermal gradient range.

Abstract: A dihydroxy end-capped sterically hindered aminated polyorganosiloxane polymer, i.e., a silanol chain stopped polymer is described. Also described, is a process for making such a polymer, where the process includes a two stage reaction of certain cyclic siloxanes with polymethyl piperidinyl siloxanes, wherein the ultimate viscosity of the reaction polymerization product is controlled primarily by the amount of water used in the final stage. Importantly, the polymers when applied to fabric can produce coatings that not only impart enhanced softening, non-yellowing, and hydrophilic properties to the fabric but also serendipitously provide a coating matrix that, when dried and/or cured, can enhance the durability of encapsulated compositions that are present on or within the fabric substrate.