Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1993-12-21
1995-10-31
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
524505, 525941, G03G 9087
Patent
active
054628296
ABSTRACT:
Polyblends are provided which comprise (a) a major amount of a linear or branched matrix polymer comprising a polyester having a number average molecular weight of at least 2000 or a vinyl polymer having a number average molecular weight of at least 3000 and (b) a minor amount of a block copolymer of AB or ABA type wherein A is a homopolymer block which is compatible with the matrix polymer and B is a homopolymer block which is incompatible with the matrix polymer, the blend having a fusing temperature of not more than about 250.degree. C., a melt viscosity of from about 4.times.10.sup.2 to 5.times.10.sup.4 poise as measured on a Rheometrics Dynamic Analyzer at 150.degree. C. and a frequency of 1 rad/sec and a melt elasticity of from about 1.5.times.10.sup.2 to 4.times.10.sup.4 dynes/cm.sup.2.
The polyblends are useful in the preparation of electrostatographic toner compositions used in electrographic processes.
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patent: 5082883 (1992-01-01), Alexandrovich et al.
patent: 5147750 (1992-09-01), Nakanishi
patent: 5156937 (1992-10-01), Alexandrovich et al.
Sorriero Louis J.
Tyagi Dinesh
Eastman Kodak Company
Goodrow John
Montgomery Willard G.
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