公开(公告)号：WO2021197660A1

公开(公告)日：2021-10-07

申请号：PCT/EP2020/088033

申请日：2020-12-30

Applicant: EVONIK OPERATIONS GMBH

Inventor： WURSCHE, Roland ,  TRASSL, Christian ,  GEERKENS, Sebastian ,  BLASCHKE, Jörg ,  BERNHARD, Kay ,  HOLLEYN, Denis

IPC: C08J9/06 ,  C08J9/12 ,  C08J9/232 ,  B29B9/06 ,  B29B9/065 ,  B29B9/12 ,  C08J2201/03 ,  C08J2203/00 ,  C08J2371/10 ,  C08J2379/08 ,  C08J2471/10 ,  C08J2479/08

Abstract: Polymer foams based on polyetherimides (PEI) or blends of polyetherimides and polyether ether ketone (PEEK) meet the legal requirements demanded by the aviation industry for aircraft interiors and for aircraft exteriors too.

公开(公告)号：WO2022002628A1

公开(公告)日：2022-01-06

申请号：PCT/EP2021/066551

申请日：2021-06-18

Applicant: EVONIK OPERATIONS GMBH

Inventor： TRASSL, Christian ,  BERNHARD, Kay ,  ROOSEN, Dirk ,  HOLLEYN, Denis ,  PAREMAL, Vinod

IPC: C08J9/04 ,  C08J9/232 ,  C08J9/36 ,  C08J2205/04 ,  C08J2379/08

Abstract: Polymer foams based on polyetherimides (PEI) meet the legal requirements of the aerospace industry for both the interior and exterior of aircraft.

公开(公告)号：WO2021023444A1

公开(公告)日：2021-02-11

申请号：PCT/EP2020/068757

申请日：2020-07-03

Applicant: EVONIK OPERATIONS GMBH

Inventor： RICHTER, Thomas ,  SEIPEL, Christoph ,  BERNHARD, Kay

IPC: C08J9/00 ,  C08J9/06 ,  C08F2/44 ,  C08L33/12 ,  C08F220/14

Abstract: The invention relates to a composition for producing a PMMA-based cast polymer with a low styrene content using urea (derivatives) as a formulation constituent, and a hydrophilic inorganic compound as a filler. It is possible to produce PMMA-based cast polymers and mouldings having surprisingly high mechanical stability from the composition according to the invention.