Structural member of particulate material and method of making same
AssigneeCapital Wire & Cable, Division of U. S. Industries
InventorJohn Philip Pringle
Life of this patent
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Abstract
A structural member is fabricated from a mixture of scrap particles of thermoplastic wire and cable insulation, wood particles, comminuted paper, sawdust, and a suitable resin binder. The fabrication procedure is carried out by initially forming a mixture of reclaimed thermoplastic wire or cable insulation, a thermosetting binder, and one or more wood like fillers, such as wood chips, comminuted paper and sawdust and mold release agent. The mixture is then placed in a mold and is subjected to heat and pressure to form a structural member.
Claims8
A structural member comprising in combination:
- a. a first component comprising a mixture of:
- 1. 30 to 60 weight percent of particulate membeers of scrap thermoplastic wire and cable insulation material randomly distributed throughout said member;
- and
- 2. 70 to 40 percent of particulate wood filler material filling the spaces between said thermoplastic members;
- and
- b. a second component added to said first component, comprising an effective quantity of thermosetting resin binder materials interattaching said thermoplastic and said wood filler materials to form a structural member.
A structural member comprising in combination:
- a. a first component comprising a mixture of:
- 1. 30 to 60 weight percent of particulate members of scrap thermoplastic wire and cable insulation material randomly distributed through said member, 50 percent of said thermoplastic particles by weight being 1/16 to 1/4 of an inch maximum dimension;
- and
- 2. 70 to 40 weight percent of particulate wood filler material filling the spaces between said thermoplastic particles, 50 percent by weight of said wood particles being 1/8 to 3/8 of an inch maximum dimension;
- and
- b. a second component added to said first component, comprising an effective quantity of thermosetting resin binder material attaching said thermoplastic and said wood filler materials to form a structural member.
A structural member comprising in combination:
- a. 21 to 51 weight percent of particulate members of scrap thermoplastic wire and cable insulation material randomly distributed through said member, 50 percent by weight of said thermoplastic particles being 1/16 to 1/4 inch maximum dimension;
- b. 34 to 63 weight percent of particulate wood filler material filling the spaces between said thermoplastic members, 50 percent by weight of said wood filler particles being 1/8 to 3/8 of an inch maximum dimension;
- and
- c. 10 to 15 weight percent phenolic resin binder materials interattaching said thermoplastic materials and said wood filler to form a structural member.
Dependencies are inferred from the claim text.