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US 7,022,758 B2Granted
Press molding compound
AssigneeThe R. J. Marshall Company
InventorJohn Paul Simmons
Life of this patent
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Abstract
A press molding compound is disclosed which comprises an uncured thermoset resin, a mineral filler and a cured thermoset resin. The ratio of uncured thermoset resin to mineral filler can be adjusted to maintain a desired specific gravity.
Claims9
Granules formed from a press molding mixture comprising, in combination:
- an uncured thermoset resin;
- a mineral filler;
- and
- a cured thermoset resin;
- wherein the press molding mixture has a consistency which permits the mixture to be cut into or extruded into logs.
2 more elements
Granules formed from a press molding mixture comprising, in combination:
- an uncured thermoset resin;
- a mineral filler, wherein a ratio by weight of uncured thermoset resin to mineral filler is about 37 to 63;
- and
- a cured thermoset resin, wherein the cured thermoset resin comprises about 18–22% by weight of the mixture and the cured thermoset resin is sufficiently small to penetrate a 145 Mesh.
1 more element
Dependencies are inferred from the claim text.