Methods for stiffening portions of flexible material

Details Methods for stiffening portions of flexible material Methods for stiffening portions of flexible material

1976-09-02

1978-01-24

Lawson, Patrick D.

Boot and shoe making

Processes

Miscellaneous parts

156245, A43D 0000, B29B 0000

Patent

active

040695328

ABSTRACT:
The method for stiffening a flexible workpiece such as the toe portion of a shoe in which a layer of fast crystallizing linear synthetic polymer resin is deposited in molten condition on a transfer surface member which is at a temperature and has a heat take up capability to bring the resin at its surface to a temperature for rapid crystallization of the resin, the resin layer is pressed between the transfer surface member and the surface of the workpiece within a time after deposition of the resin on the transfer surface member during which at least the exposed surface of the resin layer remains molten for wetting adhesive engagement with the surface of the workpiece and the transfer surface member is separated from the resin layer at a time when at least a surface film of crystallized resin has formed adjacent said transfer surface member.

REFERENCES:
patent: 3442743 (1966-05-01), Schultz et al.
patent: 3795466 (1974-03-01), Capuano
patent: 3945074 (1976-03-01), Babson et al.

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