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Thermally stable oleophobic low adhesion coating for inkjet printhead face
US8969487B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8969487-B2 |
| Application number | US-201213557466-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 25, 2012 |
| Priority date | Jul 25, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
Official abstract text for this publication.
A coating for an ink jet printhead front face, wherein the coating comprises an oleophobic low adhesion coating having high thermal stability as indicated by less than about 15 percent weight loss when heated to up to 300° C., and wherein a drop of ultra-violet (UV) gel ink or a drop of solid ink exhibits a contact angle of greater than about 45° and sliding angle of less than about 30° with a surface of the coating, wherein the coating maintains the contact angle and sliding angle after the coating has been exposed to a temperature of at least 200° C. for at least 30 minutes. In particular, the coating shows no oil on the coating surface after curing.
First claim
Opening claim text (preview).
What is claimed is: 1. An oleophobic low adhesion coating for an ink jet printhead front face, wherein the coating comprises: a) a perfluoropolyether compound having a formula: X—(CH2CH2O) a CH2-CF2P-(CF2CF2O) b —(CF2O) c CF2-CH2-(OCH2CH2) a —X wherein a is an integer in a range between 0 and 20, and b and c are integers in a range between 0 and 50, provided that at least one of b and c is not zero, and X is a functional end group selected from the group consisting…
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- B41J2/1606Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US8969487B2 cover?
- A coating for an ink jet printhead front face, wherein the coating comprises an oleophobic low adhesion coating having high thermal stability as indicated by less than about 15 percent weight loss when heated to up to 300° C., and wherein a drop of ultra-violet (UV) gel ink or a drop of solid ink exhibits a contact angle of greater than about 45° and sliding angle of less than about 30° with a …
- Who is the assignee on this patent?
- Sambhy Varun, Wu Jin, Law Kock-Yee, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification B41J2/1606. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).