Methods of stiffening a shoe component

Details Methods of stiffening a shoe component Methods of stiffening a shoe component

1975-03-18

1976-08-10

Lawson, Patrick D.

Boot and shoe making

Processes

Miscellaneous parts

A43D 0000

Patent

active

039732843

ABSTRACT:
The method of stiffening a selected area of a shoe component of flexible sheet material in which a layer of molten synthetic polymeric material is coated on the area to be stiffened, rigid, preferably heat-softenable, granules are applied to the coating layer while the coating material is soft to cause the granules to adhere, and the shoe component is pressed against a second flexible shoe component with the coating and granules between the parts and with the coating in heat softened condition to force the coating material through openings between the granules and into wetting engagement with the second shoe component. The assembled shoe components may then be shaped and the polymeric material cooled to form a layer of hardened polymeric material with the granules locked in it as reinforcing stiffening bodies.

REFERENCES:
patent: 2709312 (1955-05-01), Crowell
patent: 3238089 (1966-03-01), Griswold
patent: 3259536 (1966-07-01), Gaeth et al.
patent: 3605152 (1971-09-01), Becker
patent: 3734814 (1973-05-01), Davis et al.
patent: 3749626 (1973-07-01), Andrews et al.

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