Abstract: Biomaterial-based elastomeric materials are disclosed, as are methods for making and using such fibrous materials. In some embodiments, a biomaterial textile composition includes a mixture of a thermoplastic elastomer and a second polymer. The biomaterial textile compositions of the disclosure are characterized by desirable combinations of material properties, e.g., elastic modulus and hardness, that make the materials especially suitable for various applications, particularly as leather analogs and similar textiles.

Abstract: Multiple cure coreactive compositions for three-dimensional printing include a polythiol, a reactive polyamine, and a coreactive compound that is reactive with both the polythiol and the reactive polyamine. The reaction between the polythiol and the coreactive compound is catalyzed by the reactive polyamine and has a gel time that is faster that the gel time of the reaction between the coreactive compound and reactive polyamine. Other examples of multiple cure coreactive compositions suitable for three-dimensional printing include a composition comprising a reactive polyamine, a polyfunctional Michael acceptor, a poly epoxide and a non-reactive catalyst; and a composition comprising a reactive polyamine, a polyfunctional Michael acceptor, a polyepoxide or combination thereof, and an amine reactive compound. The multiple cure coreactive compositions can have a fast gel time at a temperature of 25° C.

Abstract: Methods of fabricating wind turbine blades, leading edge protection surfaces of wind turbine blades and wind turbine protection shields using coreactive additive manufacturing. The blades, surfaces (605), and protection shields can include a single layer or multiple layers of a cured composition applied using coreactive manufacturing such as three-dimensional printing. Methods of repairing leading edge (601) surfaces of wind turbine blades include applying one or more layers of a coreactive composition onto the damaged leading edge surfaces using coreactive additive manufacturing or applying a leading edge protection shield onto a damaged leading edge (601) of a wind turbine blade.

Abstract: Systems and methods are provided for practicing Relational Fitness abilities. A relational fitness development and fundraising tool includes a server having a processor and a memory, a storage system in communication with the processor and storing challenge activity information, and a collaboration, reporting, and payment application stored in the memory and including a graphical user interface (GUI) module and a rule module. The processor executes the GUI and rule modules to selectively operate the application in a daily challenge mode, a training mode, a tournament mode, and a fundraising mode, where all of the operational modes involve user athletes completing relational fitness challenge activities in exchange for points and/or for fundraising dollars on behalf of a beneficiary. Other embodiments are also disclosed.