公开(公告)号：US20220119620A1

公开(公告)日：2022-04-21

申请号：US17298635

申请日：2020-06-09

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Emre Discekici ,  Shannon R. Woodruff ,  Graciela Negri Jimenez ,  Dennis J. Schissler

IPC: C08K3/26 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/10 ,  C08L77/02

Abstract: The present disclosure describes kits and compositions for three dimensional printing, systems for three-dimensional printing, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing comprises: a fusing agent comprising water and a radiation absorber, wherein the radiation absorber absorbs radiation energy and converts the radiation energy to heat; and a pore-promoting agent comprising water and a water-soluble pore-promoting compound, wherein the pore promoting compound chemically reacts at an elevated temperature to generate a gas, and wherein the water-soluble pore-promoting compound is selected from the group consisting of sodium bicarbonate, potassium bicarbonate, and combinations thereof.

公开(公告)号：US20220348731A1

公开(公告)日：2022-11-03

申请号：US17245501

申请日：2021-04-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Emre Discekici ,  Shannon R. Woodruff ,  Alay Yemane

IPC: C08J7/12 ,  C08K3/04 ,  B29C64/165 ,  B29C64/35 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00

Abstract: The present disclosure includes a three-dimensional printed object comprising a fusing agent, a polymeric build material and a treatment agent further comprising water or an aqueous solution of methyl 4-hydroxybenzoate. It further includes a method of enhancing mechanical properties of said three-dimensional printed article as well as a method of creating a treated three-dimensional printed object.