UST102004I4 - Electrostatographic carrier beads and method of making - Google Patents
Electrostatographic carrier beads and method of making Download PDFInfo
- Publication number
- UST102004I4 UST102004I4 US06/319,814 US31981481A UST102004I4 US T102004 I4 UST102004 I4 US T102004I4 US 31981481 A US31981481 A US 31981481A US T102004 I4 UST102004 I4 US T102004I4
- Authority
- US
- United States
- Prior art keywords
- aqueous dispersion
- water
- steel shot
- fluoropolymer
- propylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 239000011324 bead Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 239000004593 Epoxy Substances 0.000 abstract 4
- 239000006185 dispersion Substances 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 239000004812 Fluorinated ethylene propylene Substances 0.000 abstract 2
- 229920003180 amino resin Polymers 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000008367 deionised water Substances 0.000 abstract 2
- 229910021641 deionized water Inorganic materials 0.000 abstract 2
- 229920002313 fluoropolymer Polymers 0.000 abstract 2
- 239000004811 fluoropolymer Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229920009441 perflouroethylene propylene Polymers 0.000 abstract 2
- BNCADMBVWNPPIZ-UHFFFAOYSA-N 2-n,2-n,4-n,4-n,6-n,6-n-hexakis(methoxymethyl)-1,3,5-triazine-2,4,6-triamine Chemical compound COCN(COC)C1=NC(N(COC)COC)=NC(N(COC)COC)=N1 BNCADMBVWNPPIZ-UHFFFAOYSA-N 0.000 abstract 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 1
- 210000003850 cellular structure Anatomy 0.000 abstract 1
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 1
- 239000011162 core material Substances 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 abstract 1
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
Electrophotographic carrier beads, comprising steel shot as a core material, are coated and then cured by a single-pass manufacturing process, using a coating liquid consisting of a water-based modified epoxy whose three-dimensional, highly cross-linked cellular structure, is packed with a fluoropolymer. This water-based carrier coating makes use of the water-based modified epoxy described in U.S. Pat. No. 4,212,781.
For a first example, this epoxy material is converted to an aqueous dispersion by mixing with deionized water, an aminoplast cross-linking resin (hexamethoxymethylmelamine), fluorinated ethylene-propylene, and chromium oxide.
This aqueous dispersion is coated onto steel shot by a single-pass fluidized bed manufacturing process.
For a second example, this epoxy material is converted to an aqueous dispersion by mixing with deionized water, said aminoplast cross-linking agent, said fluorinated ethylene-propylene and a second fluoropolymer, polytetrafluoroethylene.
This aqueous dispersion is coated onto steel shot in the same manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/319,814 UST102004I4 (en) | 1981-11-09 | 1981-11-09 | Electrostatographic carrier beads and method of making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/319,814 UST102004I4 (en) | 1981-11-09 | 1981-11-09 | Electrostatographic carrier beads and method of making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST102004I4 true UST102004I4 (en) | 1982-07-06 |
Family
ID=23243746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/319,814 Pending UST102004I4 (en) | 1981-11-09 | 1981-11-09 | Electrostatographic carrier beads and method of making |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST102004I4 (en) |
-
1981
- 1981-11-09 US US06/319,814 patent/UST102004I4/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: DEFENSIVE PUBLICATION OR SIR FILE |