Use of iron oxide pigments in a polymethyl methacrylate article

Details Use of iron oxide pigments in a polymethyl methacrylate article Use of iron oxide pigments in a polymethyl methacrylate article

1982-03-10

1983-11-01

Jacobs, Lewis T.

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...

524435, 524437, 524560, 524786, 524853, C08K 310

Patent

active

044130899

ABSTRACT:
A dispersion of iron oxide pigments, selected according to particle size to avoid interference with desired properties is added to a polymerizable acrylic composition containing alumina trihydrate as filler. This mixture is cured to form a filled polymeric structure containing 15 to 80% by weight polymethyl methacrylate and 20 to 85% by weight alumina trihydrate with a pleasing uniform color, maintaining desired properties of machinability, translucency, and visual depth.

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patent: 3827933 (1974-08-01), Duggins et al.
patent: 3847865 (1974-11-01), Duggins
patent: 4085246 (1978-04-01), Buser et al.
patent: 4145477 (1979-03-01), Smiley
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patent: 4183991 (1980-01-01), Smiley et al.
patent: 4185070 (1980-01-01), Angell et al.
Derwent Abst. 42683 D/24 Mitsubishi Rayon (4-1981) (J56043302).
Derwent Abst. 1D113 D/07 BASF (Jan. 1981) (DS2941807).

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