Method of making a shoe sole having co-molded anti-skid insert

Details Method of making a shoe sole having co-molded anti-skid insert Method of making a shoe sole having co-molded anti-skid insert

1996-09-10

1998-03-10

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264244, 264245, 264255, 36 31, B29C 3912, A43B 1314

Patent

active

057258236

ABSTRACT:
A method of forming a shoe sole having a co-molded anti-skid insert is provided. Raw unvulcanized rubber sheet material for the insert, and raw unvulcanized rubber sheet material for the main portion of the sole are placed in a mold and heated to fuse them together, to vulcanize the rubber, and to produce an anti-skid pattern on the insert. The material of the insert is preferably substantially the same as that of the main portion of the sole, except for its color; however, it has the appearance and texture of a separate insert.

REFERENCES:
patent: 4012855 (1977-03-01), Gardner
patent: 4309376 (1982-01-01), Ueno et al.
patent: 4398357 (1983-08-01), Batra
patent: 4658516 (1987-04-01), Beck
patent: 5024007 (1991-06-01), DuFour
patent: 5465507 (1995-11-01), Schumacher et al.

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