US 11,834,383 B2 · Energetic feedstock for additive manufacturing

Abstract

The present invention comprises formulations and method for additive manufacturing comprising: a pot-stable photo-curable polymer; one or more fillers; and one or more additives, wherein the formulation cures into a polymer in six hours or less upon exposure to light. In certain examples, the additive manufacturing is a moldless method of additive manufacturing by preparing a formulation comprising: a pot-stable photo-curable polymer, one or more fillers, and one or more additives, and exposing the formulation to light in an amount that substantially cures the polymer in 6 hours or less.

Claims20

Dependent claims

A photocurable polymer-bonded explosive made by a method comprising:

preparing a formulation comprising:
a polymer, wherein a chemical protecting group is added to the polymer to prevent curing in the presence of one or more isocyanates except when exposed to visible light;
one or more fillers;
and
one or more additives;
printing the formulation additively on a surface;
exposing each layer of the printed formulation to light in an amount that partially cures the polymer;
and
exposing the printed formulation to heat in an amount that substantially cures the polymer.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/698,562Filed 27 Nov 2019 · us provisional application

Priority

27 Nov 2018

Published

US 2021/0276931 A19 Sep 2021

Granted

5 Dec 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

C06B 45/10
The solid solution or matrix containing an organic component: the organic component containing a resin
C06B 21/0025
Compounding the ingredient: the ingredient being a polymer bonded explosive or thermic component
C06B 21/0033
Apparatus or methods for working-up explosives, e.g. forming, cutting, drying: shaping the mixture
C06B 25/00
Compositions containing a nitrated organic compound

Energetic feedstock for additive manufacturing

Life of this patent

Energetic feedstock for additive manufacturing

Life of this patent

Abstract

Claims20