Heat-resistant molding composition and molded parts for handling hot glass articles
AssigneeOwens-Illinois, Inc.
InventorsEdward J. Stengle, Jr., Lester C. Minneman
Life of this patent
Estimating the term…
Abstract
This invention relates to rigid solid-lubricant composite materials which are extremely heat and wear-resistant and are moldable and thermosetting when molded to shape for handling hot glass articles. The composition is comprised of an organic silicone resin having chopped glass fibers and a finely-ground graphite-containing material therein. The composition may be molded to shape by compression or transfer molding into conveyor parts, for example, for handling newly-formed hot glass articles without marring their surfaces.
Claims10
A moldable thermosetting composite material for handling newly-formed hot glass articles, and the like, comprising the following constituents in weight percentage:
- ______________________________________ Range Thermosetting Weight % ______________________________________ Silicone Resin 24.0-40.0 Graphite 15.0-25.0 Chopped Glass Fibers 1.0-55.0 Carbon Powder 0.0-10.0 Amine Catalyst 0.0-1.0 Iron Oxide Pigment 0.0-2.0 Calcium Stearate Lubricant 0.0-1.0 ______________________________________
- said material in molded form having properties of high temperature-resistance, medium impact strength and low coefficient of friction.
A heat-resistant thermoset-hardened heat-cured molded article for handling newly-formed hot glass products, and the like, comprising the following constituents in weight percentage:
- ______________________________________ Range Thermosetting Weight % ______________________________________ Silicone Resin 24.0-40.0 Graphite 15.0-25.0 Chopped Glass Fibers 1.0-55.0 Carbon Powder 0.0-10.0 Amine Catalyst 0.0-1.0 Iron Oxide Pigment 0.0-2.0 Calcium Stearate Lubricant 0.0-1.0 ______________________________________
- said article having at least one generally-planar surface and having properties of high-temperature resistance, medium impact strength and low coefficient of friction.
A heat-resistant thermoset-hardened heat-cured molded article for handling newly-formed hot glass products, and the like, comprising the following constituents by weight:
- ______________________________________ AMOUNT WEIGHT % ______________________________________ Thermosetting Silicone Resin 25 Graphite 20 Chopped Glass Fibers 49 Carbon Powder 5 Amine Catalyst 0.5 Calcium Stearate Lubricant 0.5 ______________________________________
- said article being molded by compression molding and having at least one generally-planar surface, and having properties of high-temperature resistance, medium impact strength and low coefficient of friction.
A heat-resistant thermoset-hardened heat-cured molded article for handling newly-formed hot glass products, and the like, comprising the following constituents by weight:
- ______________________________________ AMOUNT WEIGHT % ______________________________________ Thermosetting Silicone Resin 35 Graphite 20 Chopped Glass Fibers 37.5 Silica Powder 5 Carbon Powder 1 Amine Catalyst 0.5 Calcium Stearate Lubricant 0.5 ______________________________________
- said article being molded by transfer molding and having at least one generally-planar surface, and having properties of high-temperature resistance, medium impact strength and low coefficient of friction.
Dependencies are inferred from the claim text.