Core Shell Technology

Arkema pioneered and developed the two main technologies going into Core Shell Impact Modifier Technology.  Core shell impact modifiers are used preferentially in a large range of polymers.

Over the last couple of decades, Arkema has developed extensive knowledge on core shell technology, designing high performance modifiers for specific market needs and technical requirements owing to a control of technology architecture.

Core Shell Parameters	Performance / Characteristics
Control of rubber chemistry (homo or copo)	Rubber Tg / Toughening performance
Rubber particle size	Toughening performance, rheology, particle deformation
Control of rubber crosslinking	Particle deformation
Control of core shell ratio	Toughening performance
Control of shell chemistry and crosslinking	Dispersion, rheology

Atomic Force Microscopy photos of coreshell dispersed into polymer applications

The Arkema Clearstrength^® and Durastrength^® impact modifier product lines offer a large range of technical performance allowing polymers to meet stringent application requirements.  

Excellent low temperature impact  Excellent colorability  Poor UV stability  Poor to good thermal stability	Excellent UV stability  Excellent thermal stability  Good low temperature impact  Good colorability