Abstract: A curable two-part acrylate or methacrylate based structural adhesive composition for bonding a variety of substrates is provided that has an adhesive part A and an activator part B. Each of the part A and the part B having a separate storage stability of at least 165 days at 23° C. An additive is present to modify working time that has limited effect on fixture time, the additive being at least one of: a sulfonyl chloride in Part A, an encapsulated sulfonyl chloride in Part B, a halogen transfer agent in Part B, a multifunctional chain transfer agent in Part B, or a combination of any of the aforementioned. A process of applying an adhesive to a substrate is also provided.

Abstract: A process, material, and apparatus are provided for effectuating thermal stereolithography utilizing combined thermal and ultraviolet and/or visible light curing. In an embodiment, the process may include providing a material including a thermoplastic component and a thermosetting component. The process may also include heating the material to at least partially flow the thermoplastic component. The process may also include dispensing the material in a plurality of layers to form a desired three dimensional object. The process may further include illuminating the material with electromagnetic radiation to at least partially polymerize the thermosetting component.