Patent · US Active

Process for producing 3D structures from rubber material

US11192293B2 · kind B2 · utility

1Cited by

7References

8Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Dirk Achten · Leverkusen, DE
Thomas Büsgen · Leverkusen, DE
Dirk Dijkstra · Odenthal, DE
Roland Wagner · Feldkirchen-Westerham, DE

Key dates

Filing date	Jul 7, 2017
Grant date	Dec 7, 2021
Priority date	—
Expiry date	Feb 18, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB33Y80/00
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process is described for producing a three dimensional structure, the process including the following steps a) applying of at least a first material M1 onto a substrate to build a first layer L1 on the substrate; b) layering of at least one further layer Ly of the first material M1 or of a further material Mx onto the first layer L1, wherein the at least one further layer Ly covers the first layer L1 and/or previous layer Ly-1 at least partially to build a precursor of the three dimensional structure; c) curing the precursor to achieve the three dimensional structure; wherein at least one of the materials M1 or Mx provides a Mooney viscosity of >10 ME at 60° C. and of <200 ME at 100° C. before curing. Also, a three dimensional structure is described which is available according to the process according to the invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.