Barrier members for use in an electrographic printer

Patent metadata

Field	Value
Publication number	US-10534293-B2
Application number	US-201616098178-A
Country	US
Kind code	B2
Filing date	Aug 2, 2016
Priority date	Aug 2, 2016
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

Barrier members for use in an electrographic printer are described. The barrier member has a first layer including thermally insulating particles embedded in a polymer composition, and a second layer including a thermally conductive metallic layer.

First claim

What is claimed is:

1. A barrier member for use in an electrographic printer, the barrier member comprising:
a first layer comprising thermally insulating particles embedded in a polymer composition;
a second layer comprising a thermally conductive metallic layer; and
a third layer comprising a surfactant.

2. The barrier member according to claim 1 , wherein the barrier member is in the form of a sheet.

3. The barrier member according to claim 1 , wherein the thermally insulating particles comprise glass beads, ceramic beads, plastic beads, or a combination thereof.

4. The barrier member according to claim 3 , wherein the beads are hollow.

5. The barrier member according to claim 1 , wherein the first layer comprises thermally insulating particles in an amount equal to or greater than 5 wt % of the first layer.

6. The barrier member according to claim 1 , wherein the surfactant is a fluorosurfactant.

7. The barrier member according to claim 1 , wherein the second layer comprises aluminum or copper.

8. The barrier member according to claim 1 , wherein the polymer composition comprises a polyurethane.

9. A drip tray assembly comprising a barrier member as described in claim 1 and a drip tray.

10. A method of manufacturing a barrier member for use in an electrographic printer, the method comprising:
(a) mixing one or more polymer precursors with thermally insulating particles and adding a further polymer of the one or more polymer precursors to provide a polymer composition precursor;
(b) applying the polymer composition precursor to a thermally conductive metallic layer; and
(c) crosslinking the polymer composition precursor.

11. The method according to claim 10 , further comprising applying a coating material comprising a surfactant to the thermally conductive metallic layer.

12. A method of manufacturing a barrier member for use in an electrographic printer, the method comprising applying a polymer composition with thermally insulating particles embedded therein to a thermally conductive metallic layer, and applying a coating material comprising a surfactant to the thermally conductive metallic layer.

Assignees

• Hp Indigo Bv

Inventors

• Iu Kai-Kong
• Feygelman Alex
• Tran Thanh Tuyet

Classifications

• G03G21/20

  Humidity or temperature control {also ozone evacuation; Internal apparatus environment control} · CPC title

• G03G15/1615 Primary

  relating to the driving mechanism for the intermediate support, e.g. gears, couplings, belt tensioning · CPC title

• G03G21/203

  Humidity · CPC title

• G03G15/10 Primary

  using a liquid developer · CPC title