Process for preparing toner of improved mechanical properties

Details Process for preparing toner of improved mechanical properties Process for preparing toner of improved mechanical properties

1979-01-19

1980-09-16

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

To form particulate product

260 37NP, 260 4221, 264151, 264176R, 264176F, 2642108, 264211, B29C 1700

Patent

active

042229820

ABSTRACT:
A process for preparing electrostatographic toner particles having improved mechanical properties and controlled particle size and size distribution is provided through molecular orientation of glassy, brittle, semicrystalline, low molecular weight polymers. Molecular orientation results in more flexible polymers and greatly increases their yield stress, modulus and mechanical fatigue lifetime. The molecular orientation of these polymers is obtained by extrusion of fibers or films thereof.

REFERENCES:
patent: 2316283 (1943-04-01), Piperoux et al.
patent: 2516295 (1950-07-01), Borton et al.
patent: 3309441 (1967-03-01), Burczyk et al.
patent: 3640861 (1972-02-01), Hsia
patent: 4001357 (1977-01-01), Walz et al.

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