Process fro producing resin for a toner

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525263, 525265, 525302, 525308, 525309, 430105, 430109, C08F 436, C08F25702, C08F26506, G03G 908

Patent

active

052044130

ABSTRACT:
A process for producing a toner resin by a two-step suspension polymerization process, which entails preparing a polymer of high molecular weight having a weight average molecular weight of greater than about 350,000 from at least one monomer having a polymerizable vinyl group using a compound having at least three t-butyl peroxide groups in one molecule, as a polymerization initiator, and then preparing a low molecular weight polymer in the presence of the high molecular weight polymer. A toner having an excellent fixing property and offset resistance can be obtained from the above resin.

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patent: 4652511 (1987-03-01), Ueda et al.

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