Photoconductor overcoat having a charge transport molecule with four radical polymerizable hydrophilic functional groups containing an oxygen atom and method of making the same
US-2018341189-A1 · Nov 29, 2018 · US
Overcoat for a photoconductor with tetrafunctional radical polymerizable charge transport molecule having hydrogen
US10732528B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10732528-B2 |
| Application number | US-201916414104-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 16, 2019 |
| Priority date | Dec 31, 2013 |
| Publication date | Aug 4, 2020 |
| Grant date | Aug 4, 2020 |
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- Title
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Abstract
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An overcoat layer for an organic photoconductor drum includes a curable composition having about 20 to about 80 percent by weight of a charge transport molecule containing four radical polymerizable functional groups as exemplified below: where R 1 and R 2 contain a spacer group and a radical polymerizable functional group, R 3 and R 4 are hydrogen atoms, and R 5 and R 6 contain a spacer group and a radical polymerizable functional group. The curable composition may also include a non-radical polymerizable additive, such as a surfactant, and/or a curing agent.
First claim
Opening claim text (preview).
What is claimed is: 1. An overcoat layer for an organic photoconductor drum, comprising a curable composition including: about 20 to about 80 percent by weight of a charge transport molecule containing four radical polymerizable functional groups as exemplified below: where R 1 and R 2 contain a spacer group and a radical polymerizable functional group, R 3 and R 4 are hydrogen atoms, and R 5 and R 6 contain a spacer group and a radical polymerizable functional group, wherein the radical polymerizable functional groups of R1 and R2 are selected from the group consisting of acrylate group, methacrylate group, glycidyl ether group, epoxy group, and combinations thereof and the radical polymerizable functional groups of R5 and R6 are selected from the group consisting of acrylate group, methacrylate group, glycidyl ether group, epoxy group, and combinations thereof. 2. The overcoat layer of claim 1 , wherein the curable composition further includes a non-radical polymerizable additive. 3. The overcoat layer of claim 2 , wherein the non-radical polymerizable additive is a surfactant. 4. The overcoat layer claim 3 , wherein the surfactant exists in an amount equal to or less than about 10% by weight of the curable composition. 5. The overcoat layer of claim 4 , wherein the amount is about 0.1% to about 5% by weight of the curable composition. 6. The overcoat layer of claim 1 , wherein the curable composition further includes a curing agent. 7. The overcoat layer of claim 1 , wherein the spacer group of R1 and R2 is an unbranched alkyl group-containing between 1 and about 6 carbon atoms. 8. The overcoat layer of claim 1 , wherein the radical polymerizable functional group of R1 and R2 is an acrylate group. 9. The overcoat layer of claim 1 , wherein the spacer group of R5 and R6 is an unbranched alkyl group containing between 1 and about 6 carbon atoms. 10. The overcoat layer of claim 1 , wherein the radical polymerizable functional group or R5 and R6 is an acrylate group. 11. The overcoat layer of claim 6 , wherein the curing agent is a urethane acrylate containing six acrylate groups of the following structure:
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Classifications
- G03G5/071Primary
obtained by reactions only involving carbon-to-carbon unsaturated bonds (G03G5/078 takes precedence) · CPC title
- G03G7/0006Primary
Cover layers for image-receiving members; Strippable coversheets · CPC title
having unsaturation outside the aromatic rings · CPC title
Polyvinylalcohol, polyallylalcohol; Derivatives thereof, e.g. polyvinylesters, polyvinylethers, polyvinylamines · CPC title
containing condensed ring systems · CPC title
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- What does patent US10732528B2 cover?
- An overcoat layer for an organic photoconductor drum includes a curable composition having about 20 to about 80 percent by weight of a charge transport molecule containing four radical polymerizable functional groups as exemplified below: where R 1 and R 2 contain a spacer group and a radical polymerizable functional group, R 3 and R 4 are hydrogen atoms, and R 5 …
- Who is the assignee on this patent?
- Lexmark Int Inc
- What technology area does this patent fall under?
- Primary CPC classification G03G5/071. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 04 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).