Invention Application
US20160332344A1 PREFOAMING OF POLY(METH)ACRYLIMIDE PARTICLES FOR SUBSEQUENT FOAM MOULDING IN CLOSED TOOLS
审中-公开
用于封闭工具中后续泡沫模塑的聚（甲基）丙烯酰亚胺颗粒的预选
- Patent Title: PREFOAMING OF POLY(METH)ACRYLIMIDE PARTICLES FOR SUBSEQUENT FOAM MOULDING IN CLOSED TOOLS
- Patent Title (中): 用于封闭工具中后续泡沫模塑的聚（甲基）丙烯酰亚胺颗粒的预选
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Application No.: US15100538Application Date: 2014-12-03
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Publication No.: US20160332344A1Publication Date: 2016-11-17
- Inventor: Kay BERNHARD , Ina LIEBL , Denis HOLLEYN , Christoph SEIPEL
- Applicant: Kay BERNHARD , Ina LIEBL , Denis HOLLEYN , Christoph SEIPEL
- Applicant Address: DE Darmstadt
- Assignee: EVONIK ROEHM GMBH
- Current Assignee: EVONIK ROEHM GMBH
- Current Assignee Address: DE Darmstadt
- Priority: DE102013225132.7 20131206
- International Application: PCT/EP2014/076333 WO 20141203
- Main IPC: B29C44/34
- IPC: B29C44/34 ; C08J9/224 ; B29C35/08 ; B29B9/12 ; B29C44/02 ; B29C44/38 ; C08J3/28 ; C08J9/228
Abstract:
The invention relates to a process for the production of prefoamed poly(meth)acrylimide (P(M)I) particles which can be further processed to give foam mouldings or composites. A feature of this process is that a polymer granulate is first heated and thus prefoamed in an apparatus by means of IR radiation of a wavelength suitable for this purpose. Said granulate can be further processed in subsequent steps, e.g. in a press mould with foaming to give a moulding or a composite workpiece with foam core.
Public/Granted literature
- US10343314B2 Prefoaming of poly(meth)acrylimide particles for subsequent foam moulding in closed tools Public/Granted day:2019-07-09
Information query
