Process for manufacturing wear resistant belts
First Claim
1. A method for producing a power transmission belt having a fabric cover element possessing a first surface and a second surface, positioned intimately along at least a portion of the outer surface of a belt body formed of a cured elastomer composition, such that said second surface of said fabric cover element is in opposing relation to said belt body, said fabric cover element characterized by a generally alternating arrangement of yarns and voids, comprising the steps of:
- a) applying to said fabric cover element a fabric treatment material comprising at least one cross-linkable constituent, such that a pick-up rate of from about 1% to 20% by weight of the dry fabric is achieved and at least a portion of said voids remain at least partially free of said fabric treatment material;
b) applying to said first surface of said fabric cover element a wear-resistant composite comprising at least one binder constituent and at least one friction-modifying constituent;
c) causing at least a portion of said wear-resistant composite to penetrate into at least a portion of the total thickness of said fabric cover element such that at least a portion of said friction-modifying constituent resides within one or more said voids in said fabric cover element; and
d) polymerizing at least a portion of said wear-resistant composite to form said belt.
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0 Petitions
Accused Products
Abstract
Endless power transmission belts and processes for their manufacture, having power transmitting surfaces comprising a wear resistant composite, which belts exhibit improved abrasion- or wear resistance, reduced noise, reduced frictional heat generation, and improved dimensional stability compared to known belt constructions, as well as processes for manufacturing same. More particularly, an endless toothed belt having an abrasion- and noise resistant cover element, which comprises at least one friction-modifying constituent and at least one binder constituent.
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Citations
17 Claims
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1. A method for producing a power transmission belt having a fabric cover element possessing a first surface and a second surface, positioned intimately along at least a portion of the outer surface of a belt body formed of a cured elastomer composition, such that said second surface of said fabric cover element is in opposing relation to said belt body, said fabric cover element characterized by a generally alternating arrangement of yarns and voids, comprising the steps of:
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a) applying to said fabric cover element a fabric treatment material comprising at least one cross-linkable constituent, such that a pick-up rate of from about 1% to 20% by weight of the dry fabric is achieved and at least a portion of said voids remain at least partially free of said fabric treatment material;
b) applying to said first surface of said fabric cover element a wear-resistant composite comprising at least one binder constituent and at least one friction-modifying constituent;
c) causing at least a portion of said wear-resistant composite to penetrate into at least a portion of the total thickness of said fabric cover element such that at least a portion of said friction-modifying constituent resides within one or more said voids in said fabric cover element; and
d) polymerizing at least a portion of said wear-resistant composite to form said belt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
(a) Fluoropolymer;
(b) Molybdenum disulphide; and
(c) Graphite.
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17. The method of claim 16 wherein said fluoropolymers is selected from:
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(a) polytetrafluoroethylene polymer;
(b) polytrifluoromonochloroethylene polymer;
(c) polyvinylidene fluoride polymer;
(d) fluorinated ethylene polymer; and
(e) perfluoroalkoxy polymer.
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Specification