US 10,981,834 B2Granted

Plastic component comprising a carbon filler

AssigneeSgl Carbon SE

InventorsOswin Öttinger, Dominik Rivola, Jürgen Bacher

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Abstract

A composite material containing carbon and a plastic includes: a) provision of a pulverulent composition with one or more components of amorphous carbon, graphite and mixed forms thereof, b) provision of a liquid binder, c) planar deposition of a layer consisting of the material provided in step a) and local deposition of droplets of material provided in step b) onto this layer and any number of repetitions of step c), the local deposition of the droplets in the successive repetitions of this step being adapted according to the desired shape of the component to be produced, d) at least partial curing or drying of the binder to obtain a green body that has the desired shape of the component, e) impregnation of the green body with a liquid synthetic resin and f) curing of the synthetic resin to produce a synthetic resin matrix.

Claims10

Dependent claims

A method for producing a three-dimensional component consisting of a composite material containing carbon and plastics material, which method comprises the following steps:

a) providing a powdered composition comprising one or more constituents selected from the group consisting of amorphous carbon, graphite and hybrid forms thereof,
b) providing a liquid binder,
c) planarly depositing a layer of the powdered composition provided in a) and locally depositing droplets of the liquid binder provided in b) on said layer, and repeating step c) any number of times, wherein the step of locally depositing the droplets in subsequent repetitions of said step is adjusted according to the desired shape of the three-dimensional component to be produced,
d) at least partially hardening or drying the liquid binder and obtaining a green body that has the desired shape of the three-dimensional component,
e) impregnating the green body with a liquid synthetic resin, and
f) hardening the liquid synthetic resin so as to form a synthetic resin matrix.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/778,303Filed 24 Nov 2016
Priority: DE 10 2015 223 238.724 Nov 2015
Published: US 2018/0346384 A16 Dec 2018
Granted: 20 Apr 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

C04B 35/522
Based on carbon, e.g. graphite: graphite
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,…
B32B 18/00
Layered products essentially comprising ceramics
B33Y 10/00
Processes of additive manufacturing