Acrylic sheet having uniform distribution of coloring and minera

Details Acrylic sheet having uniform distribution of coloring and minera Acrylic sheet having uniform distribution of coloring and minera

1997-07-07

1999-11-16

Seidleck, James J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524430, C08J 510, C08K 310, C08L 3312

Patent

active

059859725

ABSTRACT:
The present invention is drawn to a composition and thermoformable sheets and articles made therefrom. In the present invention, ranges of chain-transfer agents, thixotropic agents, and mineral filler content are balanced to minimize migration or maldistribution of coloring matter and mineral filler during curing of methyl methacrylate in a syrup and also during subsequent heating and deformation in thermoforming, to achieve constancy of impact resistance and improve stability of patterns even in deformed portions of formed sheets.

REFERENCES:
patent: 4085246 (1978-04-01), Buser et al.
patent: 5521243 (1996-05-01), Minghetti
patent: 5705552 (1998-01-01), Minghetti

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