Acrylic composite materials

Details Acrylic composite materials Acrylic composite materials

1990-03-29

1992-09-08

Michl, Paul R.

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...

523513, C08K 312

Patent

active

051459035

ABSTRACT:
A fluid, filled, curable composition comprising an organic liquid which is polymerizable to form a solid polymer without the formation of any elimination products and from 20 to 70% by volume of alumina trihydrate filler characterized in that filler has a median particle size of between 5 and 30 microns, and preferably between 6 and 20 microns, and has an average aspect ratio of less than 2,5:1, preferably less than 2.0:1, and desirably less than 1.8:1.
The composition when cured provides shaped articles having improved mechanical properties and when used as a dispersion of low viscosity reduces the tendency for the composition to show color variations through the thickness of the sheet as exhibited using alumina trihydrate fillers of high aspect ratio.

REFERENCES:
patent: 3847865 (1974-11-01), Duggins
patent: 4159301 (1979-06-01), Buser et al.
patent: 4413089 (1983-11-01), Gavin et al.
patent: 4829103 (1989-05-01), Oda
patent: 4916172 (1990-04-01), Hayashi

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