Low Tg multilayer optical films

Details Low Tg multilayer optical films Low Tg multilayer optical films

2006-05-30

2006-05-30

Jones, Deborah (Department: 1775)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C283S057000, C283S058000, C283S059000, C283S094000, C356S365000

Reexamination Certificate

active

07052762

ABSTRACT:
Multilayer optical films are comprised of materials with glass transition temperatures below room temperature (<30° C.). The high refractive index polymers are unique in that they exhibit mechanical properties similar to other low Tg semi-crystalline polymers, yet have significant birefringence (>0.05) when strain induced oriented. Novel combinations of comonomers for thermoplastics control the rate of crystallinity for improved processability and flexibility, giving the films crease and crumple recovery advantages.

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