Calcium aluminate cement compositions for solid freeform fabrication

摘要

A system comprises a particulate blend (A) of calcium aluminate particulates and polymeric binder particulates, and an ink-jettable aqueous polyol-containing liquid vehicle (B) configured for hydrating the particulate blend to form a cement. Independent claims are included for the following: (1) solid free-form fabrication of a three-dimensional object involving: (a) depositing (A) in a defined region; (b) ink-jetting (B) into a predetermined area of (A) to form hydrated cement in the predetermined area; (c) hardening the hydrated cement; and (d) repeating steps (a) - (c) such that multiple layers of cement, bound to one another are formed; and (2) a solid three-dimensional prototype composition comprising multiple layers of cement; each comprising (A) hydrated and hardened with (B), deposited in contact with one another.