Polyester resin for electrophotography toner, process for prepar

Details Polyester resin for electrophotography toner, process for prepar Polyester resin for electrophotography toner, process for prepar

1997-03-14

1998-11-03

Szekely, Peter A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528296, 430109, 430904, G03G 900, C08G 6312

Patent

active

058309799

ABSTRACT:
A polyester resin for a toner, wherein a maximum molecular weight is in a range of 1.times.10.sup.3 to 8.times.10.sup.3, Mw/Mn is in a range of 20 to 200, a proportion of component having a molecular weight of 1.times.10.sup.5 or less is comprised at a range of 80 weight % or greater, and at least one component selected from the group consisting of polycarboxylic acid having more than 3 carboxyl groups and polyalcohol having more than 3 hydroxyl groups.

REFERENCES:
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patent: 4988794 (1991-01-01), Kubo et al.
patent: 5015724 (1991-05-01), Kawabe
patent: 5057596 (1991-10-01), Kubo et al.
patent: 5276127 (1994-01-01), Takyu et al.
patent: 5483016 (1996-01-01), Aoki et al.
patent: 5486444 (1996-01-01), Bayley et al.

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