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US 10,112,323 B2Granted
Complete tooling packages for mold building structures
AssigneeIllinois Tool Works Inc.
InventorsRandall Lake, Robert Mark Adams, Brian Michael Kruchten, John Pfaff, Louis Paul Schaefer, Helena Twardowska
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Abstract
Tooling packages for mold building structures, mold structures, and methods of making mold structures are described.
Claims9
A method of making a mold comprising:
- providing a plug;
- depositing a gel coat layer on the plug;
- depositing a first premium tooling resin impregnated layer directly on the gel coat layer and a second premium tooling resin layer on the first premium tooling resin impregnated layer, both of the first and second premium tooling resin impregnated layers having a thickness of about 240 mils and comprising fiberglass impregnated with said premium tooling resin containing chopped fiber in both said first and second premium tooling resin impregnated layers in an amount of 28 to 35 total wt % chopped glass fiber having a chop length of 0.5 to 1.25 inches;
- wherein the premium tooling resin comprises:
- 40 to 50 wt % shrink-controlled polyester resin
- 1 to 10 wt % isocyanurate vinyl ester resin;
- 0 to about 3 wt % additives;
- 0 to about 5 wt % accelerators;
- 0 to about 1 wt % inhibitors;
- 0 to about 5 wt % fumed silica;
- 0 to about 10 wt % monomer;
- and
- 45 to 55 wt % filler;
- and
- removing the plug.
12 more elements
A mold structure comprising:
- a gel coat layer;
- a first premium tooling resin impregnated layer deposited directly on the gel coat layer and a second premium tooling resin layer deposited on to the first premium tooling resin impregnated layer, both of the first and second premium tooling resin impregnated layers having a thickness of about 240 mils and comprising fiberglass impregnated with said premium tooling resin containing chopped fiber in both said first and said second premium tooling resin impregnated layers in an amount of 28 to 35 wt % chopped glass fiber having a chop length of 0.5 to 1.25 inches;
- wherein the premium tooling resin comprises:
- 40 to 50 wt % shrink-controlled polyester resin;
- 1 to 10 wt % isocyanurate vinyl ester resin;
- 0 to about 3 wt % additives;
- 0 to about 5 wt % accelerators;
- 0 to about 1 wt % inhibitors;
- 0 to about 5 wt % fumed silica;
- 0 to about 10 wt % monomer;
- and
- 45 to 55 wt % filler.
9 more elements
Dependencies are inferred from the claim text.