Claims
- 1. A liquid developer for use in electrophotography comprising:
- a toner comprising as the main toner components a colorant and a polyethylene oxide or polypropylene oxide resin having an acid value of from 5 to 50 and a melt viscosity at 200.degree. C. of from 100 to 15,000 cps; and
- an aliphatic hydrocarbon carrier liquid in which said toner is dispersed.
- 2. A liquid developer for use in electrophotography comprising:
- a toner comprising as the main toner components a colorant, polyethylene oxide or polypropylene oxide resin having an acid value of from 5 to 50 and a melt viscosity at 200.degree. C. of from 100 to 15,000 and a second resin different from said polyethylene oxide or polypropylene oxide resin, the amount of the polyethylene oxide or propylene oxide resin being in the range of 10 to 90 wt. % of the total of said second resin and said polyethylene oxide or polypropylene oxide resin, said second resin being selected from the group consisting of a polyolefin different from polyethylene oxide or polypropylene oxide, acrylic resin, rosin-modified resin, styrene-butadiene resin, natural resins and paraffin wax; and
- an aliphatic hydrocarbon carrier liquid in which said toner is dispersed.
- 3. The liquid developer as claimed in claim 1, wherein said polyolefin resin has an acid value of from 10 to 30 and a melt viscosity at 200.degree. C. of 500 to 10,000 cps.
- 4. The liquid developer as claimed in claim 1, wherein said polyolefin resin is polyethylene oxide.
- 5. A liquid developer for use in electrophotography, comprising:
- a toner comprising a colorant and a binder resin selected from the group consisting of polyethylene oxide and polypropylene oxide, with the provisos that said binder resin has an acid value of from 5 to 50 and a melt viscosity at 200.degree. C. of from 100 to 15,000 cps, and a carrier liquid in which said toner is dispersed.
- 6. A liquid developer for use in electrophotography comprising:
- a toner comprising as the main toner components a colorant and a polyolefin resin having an acid value of from 5 to 50 and a melt viscosity at 200.degree. C. of from 100 to 15,000 cps, said polyolefin resin consisting of an ethylene-vinylpyridine-maleic acid copolymer with a respective component weight ratio of 90/5/5; and
- an aliphatic hydrocarbon carrier liquid in which said toner is dispersed.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-301276 |
Nov 1987 |
JPX |
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Parent Case Info
This application is a continuation of U.S. application Ser. No. 07/276,169, filed Nov. 23, 1988, now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (1)
Number |
Date |
Country |
9087403 |
May 1984 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
276169 |
Nov 1988 |
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