Highly durable tape cartridge drive belt

Details Highly durable tape cartridge drive belt Highly durable tape cartridge drive belt

1991-02-04

1992-07-21

Bui, Thuy M.

Endless belt power transmission systems or components

Friction drive belt

F16G 100

Patent

active

051318911

ABSTRACT:
A highly durable, usually hydrolytically stable, drive belt for belt-driven tape cartridges is disclosed which is a thin continuous flexible loop of at least one polyetherurethane (preferably non-hygroscopic), which is both durable and strong. Preferably the belt will be composed of a composite of two separate polyetherurethane materials, one having a higher molecular weight and longer polymer chain length than the other. Also preferably, these two polyetherurethane materials will be blended to a homogenous mixture by melting both materials and blend the molten material and forming the belt from the resulting polymeric mixture. Optionally a single polyetherurethane polymer may be used as the material comprising the belt if that single material has the requisite properties of flexibility and durability.

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Dow Chemical Co., "Product Selector Guide: Pellethane.RTM. Polyurethane Elastomers," Form 306-001-589X SMG, pp. 1-3, 6-8 (Date Unknown).
Dow Chemical Co., "Drying Guide: Pellethane.RTM. Polyurethane Elastomers," Form 3-6-076-589X SMG, p. 1 (Date Unknown).

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