Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2011-01-04
2011-01-04
Le, Hoa V (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S109400, C528S271000, C528S365000
Reexamination Certificate
active
07862972
ABSTRACT:
Disclosed herein is a polyester resin-based toner binder which can impart both excellent anti-blocking property under high temperature and humidity conditions and low-temperature fixing properties to a toner. The toner binder for developing electrostatic images includes a polycondensation polyester resin produced in the presence of at least one titanium-containing catalyst (a) represented by the following general formula (I) or (II):in-line-formulae description="In-line Formulae" end="lead"?Ti(—X)m(—OH)n (I)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?O═Ti(—X)p(—OR)q (II)in-line-formulae description="In-line Formulae" end="tail"?wherein X is a residue formed by removing H of one OH group from a (poly)alkanolamine having 2 to 12 carbon atoms; R is H or a C1 to C8 alkyl group which may have 1 to 3 ether bonds; m is 1 to 4, n is 0 to 3, and the sum of m and n is 4; and p is 1 to 2, q is 0 to 1, and the sum of p and q is 2 (m, n, p, and q are each an integer).
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Edwards Angell Palmer & & Dodge LLP
Le Hoa V
Sanyo Chemical Industries Ltd.
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