Nonsettling thixotropic cold bottom filler composition (US Patent 3,567,471, 1971)

George F. Kahle received US Patent No. 3,567,471 on March 2, 1971, filed May 16, 1967.

The patent's abstract:

A NONSETTLING THIXOTROPIC COMPOSITION CAPABLE OF SETTING TO A PLIABLE SOLID WHEN EXPOSED TO THE ATMOSPHERE AND PARTICULARLY SUITED FOR USE AS A COLD BOTTOM FILLER IN THE CONSTRUCTION OF SHOES WHICH IS FORMED OF A BINDER MATERIAL CONTAINING A RESINOUS FILM FORMING MATERIAL DISSOLVED IN ONE OR MORE VOLATILE SOLVENTS AND CONTAINING ABESTOS FIBER PARTICLES OR EQUIVALENT INERT THICKENERS AND GELLANTS AS A THIXIOTROPY PRODUCING AGENT IN AN AMOUNT SUFFICIENT TO MAINTAIN THE BINDER MATERIAL IN A THIXOTROPIC STATE AND HAVING SOLID PARTICULATE MATERIAL, SUCH AS GRANULATED CORK, UNIFORMLY DISTRIBUTED THROUGHOUT THE THIXOTROPIC BINDER MATERIAL. THE NONSETTLING THIXOTROPIC COMPOSITION IS PREPARED BY FIRST MIXING THE BINDER MATERIAL INGREDIENTS TO FORM THE THIXOTROPIC BINDER, AND THEREAFTER UNIFORMLY DISTRIBUTING THE SOLID PARTICULATE MATERIAL THROUGHOUT THE THIXOTROPIC BINDER MATERIAL.

Where it was listed

• Asbestos, June 1971, in its patents department (the year's issues)