THREE-DIMENSIONAL PRINTING WITH CHEMICAL FUNCTIONALIZATION AGENTS

    公开(公告)号:US20230035432A1

    公开(公告)日:2023-02-02

    申请号:US17777776

    申请日:2019-12-11

    摘要: The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of making three-dimensional printed objects. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a chemical functionalization agent. The fusing agent can include water and an electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The chemical functionalization agent can include water and an amine-containing polymer. The amine-containing polymer can be a branched or unbranched polymer that includes a polymer backbone and multiple pendant side chains. The individual side chains can include —NH2, —NH—, or a combination thereof.

    THREE-DIMENSIONAL PRINTING WITH TINTED ANTI-COALESCING AGENTS

    公开(公告)号:US20230001630A1

    公开(公告)日:2023-01-05

    申请号:US17777742

    申请日:2019-12-09

    IPC分类号: B29C64/112

    摘要: The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of making three-dimensional printed objects. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a tinted anti-coalescing agent. The fusing agent can include water and an electromagnetic radiation absorber that absorbs radiation energy and converts the radiation energy to heat. The tinted anti-coalescing agent can include an aqueous liquid vehicle, a colored dye dissolved in the aqueous liquid vehicle, and an organosilane. The organosilane can have a central silicon atom covalently coupled to multiple hydrolysable groups and to an organic group by covalent bonding to a carbon atom in the organic group, wherein the organic group is not susceptible to hydrolysis.