Abstract: Described herein is a thermoplastic polyurethane (TPU) composition suitable for 3D printing, or additive manufacturing technologies, among others. Specifically, the present disclosure relates to a TPU composition with high melt flow and low viscosity. The present disclosure further provides a filament comprising the TPU composition.

Abstract: A thermoplastic polyurethane (TPU) formed as a reaction product of a polyol composition, at least one chain extender, at least one triol and an isocyanate composition can be made. An irrigation device which has an emitter defined by a body, a cover and at least a membrane and an irrigation hose can be produced, wherein the membrane is made of the TPU. The TPU can be used for production of injection molded products, extrusion products, films, perforated films, membranes, and shaped bodies.

Abstract: Provided are aqueous resin solutions having unique rheologies and products incorporating the same. The water-based materials provided herein are thermo-thickening, and the materials increase dramatically in viscosity (at least 100 times) in a desired temperature range increase (20 C to <100 C) at ambient pressure. Suitable resins comprising a hydrophobic group and a hydrophilic group may be selected from an epoxy resin, a phenol-formaldehyde resin, a polyurethane resin, an acrylic resin, a polyester resin, an acrylic-urethane resin, a melamine resin, a melamine-formaldehyde resin, an amino resin, and combinations thereof. A specific epoxy functional resin/polymer suitable for the resin solutions are prepared by reacting (A) an epoxy pre-polymer of (1) one or more polyols and (2) one or more epoxy functional materials with (B) a di- or polyamine, thereby forming the aqueous thermo-thickening resin solution. The resin solutions are substantially free of cross-linking agents.