Title:
TWO-COMPONENT HYBRID MATRIX SYSTEM MADE UP OF POLYURETHANES AND POLYMETHACRYLATES FOR THE PREPARATION OF SHORT FIBER REINFORCED SEMI-FINISHED PRODUCTS
Document Type and Number:
Japanese Patent JP2019194313
Kind Code:
A
Abstract:
To provide novel SMC-production technology which can lead to a simpler process for the production of SMC systems that are easy to produce.SOLUTION: The process here has five stages, which include three different reactive steps which lead to successively increasing hardness levels. Known processes are used here to apply the 2-component system to fiber material, e.g. carbon fibers, glass fibers or polymer fibers, or to bring the 2-component system into contact with short fibers, whereupon a first reaction takes place. This is followed by thermal polymerization initiated by redox initiation or with the aid of radiation or of plasma applications. Polymerization produces thermoplastics or, respectively, thermoplastic prepregs, which can then subsequently be molded. Existing polyol can finally be crosslinked, via elevated temperature, with uretdiones already present in the system. It is thus possible to produce dimensionally stable thermosets or, respectively, crosslinked composite components.SELECTED DRAWING: None
Inventors:
ZUHAL TUNCAY
LOESCH HOLGER
CHRISTINA CRON
ELKE GOLLAN
LISA-MARIA ELMER
LOESCH HOLGER
CHRISTINA CRON
ELKE GOLLAN
LISA-MARIA ELMER
Application Number:
JP2019080627A
Publication Date:
November 07, 2019
Filing Date:
April 22, 2019
Export Citation:
Assignee:
EVONIK DEGUSSA GMBH
International Classes:
C08G18/79; C08G18/08; C08G18/18; C08G18/73; C08G18/75; C08J5/24; C08K7/02; C08L33/04; C08L75/04
Attorney, Agent or Firm:
Patent Business Corporation Ashitaba International Patent Office