High impact strength methyl methacrylate/polyurethane cast sheet

Details High impact strength methyl methacrylate/polyurethane cast sheet High impact strength methyl methacrylate/polyurethane cast sheet

1995-06-05

1996-07-23

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525127, 525455, 525903, C08L 3312, C08L 7504

Patent

active

055390536

ABSTRACT:
High impact strength cast sheet materials having an unnotched Charpy impact strength of at least 60 kJ/m.sup.2 comprise an interpenetrating network of a major amount of a reticulated methyl methacrylate polymer and from 3% to 8% by weight of an elastomeric polyurethane.

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