US 2021/0197455 A1 · 3-D PRINTING

Abstract

This disclosure relates to a method of 3-D printing comprising: applying a layer of build material onto a print platform, wherein the build material comprises particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group; printing a de-protecting agent at selected locations on the layer of build material; and coalescing particles of the polymer at the printed locations on the layer of build material to form a coalesced polymer layer.

Claims15

Dependent claims

A method of 3-D printing comprising

a. applying a layer of build material onto a print platform, wherein the build material comprises particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group,
b. printing a de-protecting agent at selected locations on the layer of build material, and
c. coalescing particles of the polymer at the printed locations on the layer of build material to form a coalesced polymer layer.

Dependencies are inferred from the claim text.

Facts

Application

16/077,752Filed 14 Jul 2017

Published

1 Jul 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

B29C 64/165
Processes of additive manufacturing: using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder,…
C09D 11/322
Characterised by colouring agents: pigment inks
B33Y 70/00
Materials specially adapted for additive manufacturing
C09D 11/102
Based on artificial resins: containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon…

3-d printing

Life of this patent

3-d printing

Life of this patent

Abstract

Claims15