Invention Grant
- Patent Title: Production of a PMMA foam using cross-linking agents, regulators and blowing agents
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Application No.: US15554488Application Date: 2016-03-21
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Publication No.: US10954319B2Publication Date: 2021-03-23
- Inventor: Thomas Richter , Christoph Seipel , Kay Bernhard , Sivakumara K Krishnamoorthy , Sebastian Buehler
- Applicant: Evonik Operations GmbH
- Applicant Address: DE Essen
- Assignee: Evonik Operations GmbH
- Current Assignee: Evonik Operations GmbH
- Current Assignee Address: DE Essen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP15161898 20150331
- International Application: PCT/EP2016/056085 WO 20160321
- International Announcement: WO2016/156078 WO 20161006
- Main IPC: C08F2/38
- IPC: C08F2/38 ; C08F220/14 ; C08J9/00 ; C08J9/14 ; C08J9/02 ; C08J9/06 ; C08F20/14 ; C08F2/44 ; C08J9/228 ; C08L33/12 ; C08F222/10
Abstract:
The present invention relates to novel types of PMMA foams and also to the production thereof. The recipes used in the production process include particularly crosslinkers and chain transfer agents as recipe constituents, mostly in low concentrations, in addition to suitable blowing agents. It was found that, surprisingly, the invention provides a simple-to-produce stable PMMA foam having very good properties.
Public/Granted literature
- US20180066078A1 PRODUCTION OF A PMMA FOAM USING CROSS-LINKING AGENTS, REGULATORS AND BLOWING AGENTS Public/Granted day:2018-03-08
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