Splitting of thick hard-foam plates

US10556357B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Thomas Richter · Wauseon, US
• Kay Bernhard · Darmstadt, DE
• Florian Becker · Clamart, FR
• Felix Goldmann · Griesheim, DE
• Tim DENK · Großwallstadt, DE
• Ulrich Schmidt · Flörsheim, DE
• Mathias Hempler · Alzenau, DE

Key dates

• Filing date: Nov 3, 2015
• Grant date: Feb 11, 2020
• Expiry date: Mar 31, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2007/008
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to a method for cutting rigid foams, especially slabstock P(M)I foams. A method is provided here, by means of which it is possible to cut these rigid foams even in relatively high layer thicknesses of, for example, more than 3 mm, without material loss, which is produced in relevant amounts, for example, in the course of sawing as a result of the sawdust formed.