EP0416897A2
Expired / Lapsed
EP
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Encapsulated toner compositions
Assignee: Xerox Corp
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Filing: 1990-09-05
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Granted: —
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Expires: 2010-09-05
Abstract
Abstract An encapsulated toner composition comprised of a core of a resin binder pigment, dye, or mixtures thereof, and a polymeric shell containing a polyether component.
Inventors
- 👤 Beng Song
- 👤 Guerino Sacripante
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 19:15
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/093; G03G9/0935; G03G9/09357; G03G9/09364; G03G9/09307; G03G9/09314; G03G9/09328
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
21 words
An encapsulated toner composition comprising: a core which comprises a resin binder and colourant(s); and a polymeric shell containing a polyether.
Claim 2
Dependent Claim
21 words
An encapsulated toner composition comprising: a core which comprises a resin binder and colourant(s); and a polymeric shell containing a polyether.
Claim 3
Dependent Claim
33 words
A toner composition in accordance with claim 1, wherein the polyether is selected from the group consisting of a poly(ether urea), a poly(ether urethane), a poly(ether amide), a poly(ether ester), or mixtures thereof.
Claim 4
Dependent Claim
21 words
A toner composition in accordance with claim 1 or claim 2, wherein the entire shell is comprised substantially of the polyether.
Claim 5
Dependent Claim
31 words
A toner composition in accordance with claim 1 or claim 2, wherein the polymeric shell comprises a polyurea, a polyamide, a polyurethane, a polyester material, or mixture thereof, containing the polyether.
Claim 6
Dependent Claim
19 words
A toner composition in accordance with claim 1 or claim 2, wherein the shell is prepared by interfacial polymerization.
Claim 7
Dependent Claim
27 words
A toner composition in accordance with claim 5, wherein the polymeric shell is comprised of the interfacial polycondensation product of at least one polyisocyanate, and a polyamine.
Claim 8
Dependent Claim
16 words
A toner composition in accordance with claim 6 wherein an aliphatic or aromatic polyisocyanate is selected.
Claim 9
Dependent Claim
33 words
A toner composition in accordance with any one of the preceding claims, wherein the core resin binder is selected from the group consisting of acrylate copolymers, methacrylate copolymers, styrene and dodecyl styrene copolymers.
Claim 10
Dependent Claim
56 words
A toner composition in accordance with any one of the preceding claims wherein the polymeric shell represents from 5 percent to 30 percent by weight of toner, the core binder resin represents from 20 percent to 93 percent by weight of toner, and the colourant represents from 2 percent to 75 percent by weight of toner.
Claim 11
Dependent Claim
15 words
A toner composition in accordance with any one of the preceding claims containing surface additives.
Claim 12
Dependent Claim
18 words
A toner in accordance with any one of the preceding claims, wherein the polymeric shell contains conductive components.
Claim 13
Independent Claim
44 words
A method of imaging which comprises forming by ion deposition on an electroreceptor a latent image, subsequently developing this image with a toner composition in accordance with any one of the preceding claims, and thereafter transferring and fixing the image to a suitable substrate.
References Cited (Backward Citations)
No citation records indexed.
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