Ptfe/fiberglass composite for use as a conveyor belt
AssigneeTextiles Coated Incorporated
InventorsJohn W. Tippett, Stephen W. Tippett
Life of this patent
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Abstract
A PTFE/fiberglass composite for use as a conveyor belt comprises a fiberglass fabric having oppositely facing surfaces. The fabric has a structure defining a substantially uniform pattern of openings extending from one to the other of its major surfaces, with the average area of the individual openings being at least about 0.20258 mm2. PTFE films are laminated to the major surfaces of the fabric. The laminated films are interconnected by fluroropolymer ties extending through the fabric openings and are adhered to the major surfaces with a peel strength of between about 5-13 pli. The composite has a thickness of less than about 20 mils and a fiberglass content of less than about 25%.
Claims8
A PTFE/fiberglass composite for use as a conveyor belt, said composite comprising:
- a fiberglass fabric having oppositely facing major surfaces, said fabric having a structure defining a substantially uniform pattern of openings extending from one to the other of said major surfaces, with the average area of the individual openings being at least about 0.20258 mm2;
- and
- PTFE films on the major surfaces of said fabric, said films being interconnected by fluoropolymer ties extending through said openings and being adhered to said major surfaces with a peel strength of between about 5-13 pli, said composite having a thickness of less than about 20 mils and a fiberglass content of less than about 25%
Dependencies are inferred from the claim text.