Claims
- 1. An electroerosion recording medium, comprising:
- an electrically non-conductive support,
- a layer of erodible material sufficiently thin to be eroded when subjected to current pulses from recording styli during said electroerosion recording, and
- an intermediate layer located between said support and said layer of erodible material, said intermediate layer having a thickness of at least about 25K angstroms and being comprised of a cross-linked polymer having a cross-linking agent therein, said polymer being selected from the group consisting of cellulosic derivatives, vinyl compounds, and epoxies, said intermediate layer also including hard particulates in a pigment to volume concentration of about 2-15 wherein said intermediate layer is sufficiently hard to hold said particulates substantially in place during said electroerosion recording.
- 2. The recording medium of claim 1, where said hard particulates are silica.
- 3. The recording medium of claim 1, further including a lubricating overlayer located on the styli contacting side of said layer of erodible material.
- 4. The recording medium of claim 1, wherein said intermediate layer is curable at temperatures less than about 120.degree. C. in times not in excess of about 5 minutes.
- 5. The recording medium of claim 4, where said intermediate layer is sufficiently rough to scour off from said styli debris caused by said electroerosion recording.
- 6. The recording medium of claim 1, wherein said layer of erodible material is A1.
- 7. The recording medium of claim 1, wherein said cross-linked polymer is cellulose-acetate-butyrate cross-linked with isocyanate.
- 8. The recording medium of claim 1, where said intermediate layer is hydrophobic.
- 9. An electroerosion recording medium, comprising:
- a support layer,
- a thin layer of a conductive material which can be eroded by current pulses from recording styli during electroerosion recording,
- an intermediate layer located between said support layer and said thin layer of conductive material and having a thickness of at least about 25K angstroms, said intermediate layer being comprised of a thermosetting cross-linked solvent castable polymeric/oligomeric material containing residual reactive sites, and having dispersed therein solid particulates in a pigment to volume concentration of about 2-15, said intermediate layer bonding strongly to said support layer to substantially prevent plastic deformation during said electroerosion recording.
- 10. The recording medium of claim 9, where said intermediate layer is curable to produce said cross-linking at temperatures less than about 120.degree. C. in times less than about 5 minutes.
RELATED APPLICATIONS
This is a continuation of Ser. No. 850,474 filed Apr. 10, 1986, now abandoned, which in turn is a continuation of Ser. No. 692,009 filed Jan. 15, 1985, now abandoned.
US Referenced Citations (11)
Continuations (2)
|
Number |
Date |
Country |
Parent |
850474 |
Apr 1986 |
|
Parent |
692009 |
Jan 1985 |
|