Replication Method for Surface Structures

Publication: WO2014079967A1
Published: 2014-05-30
Family Size: 4
Granted: Yes (1/4)

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a method for replicating or molding surfaces with closed undercuts (complex features that are hard to replicate by conventional means). The process involves covering the original surface with a gel-forming molding compound, allowing it to set, and then separating the gel (mold) from the original to obtain a negative form. This mold can then be used to cast copies of the original surface, even when the features are intricate or have closed undercut structures.

Use CasesContent extracted from patent full text and abstract with AI.

  • Copying intricate natural or artificial surfaces, such as those found in biological research (e.g., surface hairs of aquatic plants like Salvinia molesta)
  • Creating precise molds for industrial components with undercut or complex shapes
  • Producing replicas of art objects or archaeological artifacts that are difficult to mold using standard techniques
  • Manufacturing dental impressions and prosthetics where complex surface features must be accurately replicated
  • Developing biomimetic surfaces, e.g., for water-repellent or adhesive applications inspired by nature

BenefitsContent extracted from patent full text and abstract with AI.

  • Enables replication of surfaces with closed undercuts and complex geometries that are challenging for traditional molding techniques
  • Faster and more cost-effective than slow methods like rapid prototyping or laser lithography, making it suitable for mass production
  • Reusable or destructible molds are possible, giving flexibility for different manufacturing needs
  • Minimizes damage to original templates or fragile specimens during the molding process
  • Allows use of a range of molding and casting materials (hydrogels, thermoplastics, silicone, epoxies, etc.) for different applications

Technical Classifications (CPCs)

Main Classifications

Manufacturing & Transport

Sub Classifications

Working Plastics & Substances

CPC Codes

B29C33/3857B29C33/52

Inventors & Applicants

Applicants

Univ Bonn

Patent Abstract

The invention relates to a method for molding surfaces having closed undercuts, comprising the steps of: - providing a surface with closed undercuts, - contacting with a molding compound which is capable of forming a gel, - separating the surface from the molding compound during or after the formation of the gel in order to obtain a mold.

Key Information

Publication No.

WO2014079967A1

Family ID

49724545

Publication Date

2014-05-30

Application No.

EP2013074460W

Application Date

2013-11-22

Priority Date

2012-11-23

Granted

Yes (1/4)

Possible Cooperation

For further information please contact the transfer office.