Toothed belt

Details Toothed belt Toothed belt

1991-06-12

1993-05-11

Loney, Donald J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428 68, 428113, 428156, 428167, 428172, 428213, 428245, 428288, 428290, 428365, 428371, 428401, 474205, 474249, 474250, 474260, 474263, 474266, 74 107, 74 37, 74 82, 74665GE, B32B 300, F16G 100

Patent

active

052099610

ABSTRACT:
A toothed belt of the present invention comprises a back surface section and tooth sections that are made of an acrylonitrile-butadiene copolymer (NBR) with a hydrogenation rate of 90% or more; a tooth cloth that covers the surface of the tooth sections and tooth lands, the tooth cloth being made of an industrial nylon raw fiber with a viscosity relative to sulfuric acid of 2.45 to 2.53, a tensile strength of 5 g/denier or more, and a fineness of single fibers of 5 denier or less and being treated with resorcinol-formaldehyde-latex (RFL) liquid in which resorcinol-formaldehyde resin is mixed with a hydrogenated NBR as a latex component; and core fibers with a core diameter of 0.63 to 0.85 mm, the core fibers being made of twisted bundles of glass fibers of high strength.

REFERENCES:
patent: 4266937 (1981-05-01), Takano

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