Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1998-04-27
2000-10-03
Jagannathan, Vasu
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
430 49, C09D 1102, C09D 1110, G03G 1326, G03G 1328
Patent
active
061274526
ABSTRACT:
An oil-based ink for a printing plate by an ink jet process comprising spraying an oil-based ink comprising at least resin particles dispersed in a nonaqueous solvent having an electric resistance of 10.sup.9 .OMEGA.cm or more and a dielectric constant of 3.5 or less on a water-resistant support having a lithographically printable hydrophilic surface dropwise from a nozzle to form an image, wherein said resin particles (PL) dispersed comprises: (i) at least one monofunctional monomer (A) which is soluble in a nonaqueous solvent and becomes insoluble therein by polymerization; (ii) at least one monofunctional macromonomer (MA) having a weight average molecular weight of 2.times.10.sup.4 or less in which a polymerizable double bond group is combined with only one end of a main chain of a polymer comprising a repeating unit corresponding to a monomer; and (iii) a polymerization component, and wherein said resin particles (PL) dispersed are copolymer resin particles (PL) obtained by polymerization of a solution comprising: (a) at least one macromonomer (MM) having a weight average molecular weight of 1.times.10.sup.3 to 2.times.10.sup.4 in which a polymerizable double bond group is combined with only one end of a main chain of a polymer; (b) at least one monofunctional monomer (M) which becomes insoluble in the nonaqueous solvent by polymerization; and (c) at least one resin (P) for dispersion stabilization which is colloidally dispersed in the nonaqueous solvent.
REFERENCES:
patent: 5039598 (1991-08-01), Abramsohn et al.
patent: 5055369 (1991-10-01), Kato et al.
patent: 5112718 (1992-05-01), Kato et al.
Fuji Photo Film Co. , Ltd.
Jagannathan Vasu
Shosho Callie E.
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