Abstract: 3D printing filaments are described herein having core and shell thermoplastic extrudates. Each of the core and shell extrudates have glass transition temperatures, the glass transition temperature of the core being greater than or equal to the glass transition temperature of the shell. The ratio of the viscosity of the core thermoplastic extrudate at printing temperature, over the viscosity of the shell thermoplastic extrudate at printing temperature, is greater than 1, up to 20. The core and shell thermoplastic extrudates are miscible, or compatible with each other, or each comprise a polymer selected from the group consisting of polycarbonates, polyurethanes, polyesters, acrylonitrile butadiene styrene, styrene acrylonitrile, polyalkyl methacrylate, polystyrene, polysulfone, polylactic acid, polyetherimide, and polyimides.

Abstract: This invention relates to stable, low-viscosity polymer polyols and to a process for preparing these stable, low-viscosity polymer polyols. These polymer polyols comprise (a) a base polyol component that comprises a natural oil base polyol having a mean hydroxyl functionality of 1.7 to 5.0, a number average molecular weight of about 350 to about 725, and an OH number of 190 to 500.

Abstract: The present invention provides a short-chain polyether polyol having a number average molecular weight of less than about 1,200 g/mole and produced by alkoxylating an initiator in the presence of a basic catalyst having at least one cation chelated with about 0.5 wt. % to about 20 wt. % of a polyoxyethylene-containing compound, wherein the weight percentages are based on the weight of the short-chain polyether polyol. The inventive short-chain polyols may be used to produce rigid polyurethane foams and non-cellular polyurethanes.

Abstract: The present invention provides a process for the double metal cyanide (DMC)-catalyzed production of low unsaturation polyethers from boron-containing starters. The polyethers produced by the inventive process may be reacted with one or more isocyanates to provide polyurethane products including coatings, adhesives, sealants, elastomers, foams and the like. The inventive process may be used to prepare fuel additives from C9-C30 boron-containing polyethers, more particularly from C13 alcohols.