EP0088566A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Microcapsule toner
Assignee: Konica Minolta Inc
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Filing: 1983-02-25
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Granted: —
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Expires: 2003-02-25
Abstract
Abstract A microcapsule toner comprising colored particles wherein a liquid or soft solid core material is confined in a capsule, exhibits good strength, does not from an agglomerate and can be produce simply, when the capsule walls are made from a polyurethane or a polyurea resin.
Inventors
- 👤 Hiroshi Yamazaki
- 👤 Kouji Tokitou
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 17:47
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/14; B01J13/16; G; G03; G03G; G03G9/00; G03G9/08; G03G9/093; G03G9/09307; G03G9/09314; G03G9/09328
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
49 words
A toner for development of an electrostatic latent image which comprises a capsule whose wall is formed of at least one resin and a liquid or soft solid core confined in said capsule characterized in that said resin forming the capsule wall comprises a polyurethane and/or a polyurea resin.
Claim 2
Dependent Claim
49 words
A toner for development of an electrostatic latent image which comprises a capsule whose wall is formed of at least one resin and a liquid or soft solid core confined in said capsule characterized in that said resin forming the capsule wall comprises a polyurethane and/or a polyurea resin.
Claim 3
Dependent Claim
24 words
A toner according to Claim 1, characterized in that said polyurethane resin is a polymer produced by reaction of a polyisocyanate with a polyol.
Claim 4
Dependent Claim
24 words
A toner according to Claim 1, characterized in that said polyurea resin is a polymer produced by reaction of a polyisocyanate with a polyamine.
Claim 5
Dependent Claim
24 words
A toner according to any preceding Claim, characterized in that said core material has a viscosity of from 100,000 to 1,000,000 cps. at 60°C.
Claim 6
Dependent Claim
18 words
A toner according to any preceding Claim, characterized in that said core material further comprises a coloring agent.
Claim 7
Dependent Claim
15 words
A toner according to Claim 5, characterized in that said coloring agent is carbon black.
Claim 8
Dependent Claim
18 words
A toner according to any preceding Claim, characterized in that said core material further comprises a magnetic material.
References Cited (Backward Citations)
No citation records indexed.
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