Transfer assist members

Patent metadata

Field	Value
Publication number	US-9513582-B2
Application number	US-201414483621-A
Country	US
Kind code	B2
Filing date	Sep 11, 2014
Priority date	Sep 11, 2014
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

A transfer assist member comprising a plurality of layers, at least one of the layers being a check film layer comprised of a crosslinked alkoxyalkylated polyamide.

First claim

What is claimed is:

1. A transfer assist member comprising a plurality of layers, one of said layers being a check film layer comprised of a crosslinked alkoxyalkylated polyamide.

2. A transfer assist member in accordance with claim 1 wherein crosslinking of the alkoxyalkylated polyamide results from curing the alkoxyalkylated polyamide in the presence of a catalyst, and wherein a crosslinked value for the alkoxyalkoxylated polyamide is from about 40 to about 100 percent.

3. A transfer assist member in accordance with claim 1 wherein said check film layer further includes a conductive component of carbon black and a second polymer.

4. A transfer assist member in accordance with claim 1 wherein said crosslinked alkoxyalkylated layer further includes a conductive component, a polyvinylbutyral polymer, a catalyst, a silicone leveling agent, or a fluoropolymer leveling agent, a plasticizer, a silica, a fluoropolymer, or mixtures thereof.

5. A transfer assist member in accordance with claim 1 further including in contact with said check film layer a polymer supporting layer comprised of a polyester, a polyamide, a polyetherimide, a polyamideimide, a polyimide, a polyphenyl sulfide, a polyether ether ketone, a polysulfone, a polycarbonate, a polyvinyl halide, a polyolefin, a polyethylene terephthalate, or mixtures thereof.

6. A transfer assist member in accordance with claim 5 wherein said polymer supporting layer is comprised of a polyethylene terephthalate, and wherein said alkoxyalkylated polyamide is a N-alkoxyalkylated polyamide.

7. A transfer assist member in accordance with claim 1 wherein said crosslinked alkoxyalkylated layer further includes a conductive component of carbon black, graphite, metal oxide, polyaniline, polythiophene, polypyrrole, or mixtures thereof; a polyvinylbutyral polymer; a silica; a polysiloxane; a polytetrafluoroethylene; a catalyst, and an optional plasticizer, and which member further includes a polymer support layer comprised of a polyethylene terephthalate or a polyethylene naphthalate, and wherein said alkoxyalkylated polyamide is a N-alkoxyalkylated polyamide.

8. A transfer assist member in accordance with claim 7 wherein said plasticizer is present and is selected from the group consisting of at least one of diethyl phthalate, dioctyl phthalate, diallyl phthalate, polypropylene glycol dibenzoate, di-2-ethyl hexyl phthalate, diisononyl phthalate, di-2-propyl heptyl phthalate, diisodecyl phthalate, and di-2-ethyl hexyl terephthalate.

9. A transfer assist member in accordance with claim 1 wherein the plurality of layers is from 2 to 10 layers.

10. A transfer assist member in accordance with claim 1 wherein said plurality of layers is comprised of at least three separate polymer layers comprising a bottom polymer layer, a middle polymer layer, and a top polymer layer, and wherein said bottom polymer layer is in contact with said check film layer.

11. A transfer assist member in accordance with claim 1 wherein the alkoxy portion of said alkoxyalkylated polyamide contains from about 1 to about 18 carbon atoms, and the alkyl portion of said alkoxyalkylated polyamide contains from about 1 to about 12 carbon atoms.

12. A transfer assist member in accordance with claim 1 wherein the alkoxy portion of said alkoxyalkylated polyamide contains about 1 to about 10 carbon atoms, and wherein the alkyl portion of said alkoxyalkylated polyamide contains from about 1 to about 6 carbon atoms.

13. A transfer assist member in accordance with claim 1 wherein said alkoxyalkylated polyamide is present in an amount of about 70 to about 90 weight percent of the crosslinked solids, and wherein said alkoxyalkylated polyamide is generated from the alkoxyalkylation of a Nylon selected from the group consisting of Nylon 6, Nylon 11, Nylon 12, Nylon 6,6, Nylon 6,10, and Nylon copolymers.

14. A transfer assist member in accordance with claim 1 wherein said alkoxyalkylated polyamide is a methoxymethylated polyamide.

15. A transfer assist member in accordance with claim 1 wherein said alkoxyalkylated polyamide is selected from the group consisting of an ethoxymethylated polyamide, a propoxymethylated polyamide, a butoxymethylated polyamide, an ethoxyethylated polyamide, an ethoxypropylated polyamide, and an ethoxybutylated polyamide.

16. A transfer assist member in accordance with claim 1 further comprising a wear resistant layer of a polyethylene as represented by the following formula/structure

wherein n represents the number of repeating segments.

17. A transfer assist member in accordance with claim 2 wherein said catalyst is selected from the group consisting of toluene sulfonic acid, dinonyl naphthalene disulfonic acid (DNNDSA), dinonyl naphthalene sulfonic acid (DNNSA), dodecylbenzenesulfonic acid (DDBSA), alkyl acid phosphate, phenyl acid phosphate, oxalic acid, maleic acid, carbolic acid, ascorbic acid, malonic acid, succinic acid, tartaric acid, citric acid, methane sulfonic acid, and mixtures thereof, and wherein said polyamide is selected from the group consisting of Nylon 6, Nylon 11, Nylon 12, Nylon 6,6, and Nylon 6,10.

18. A transfer assist member in accordance with claim 2 wherein said catalyst is a para-toluene sulfonic acid.

19. A composite toner transfer assist blade comprising a plurality of bonded layers inclusive of a bonded check film layer comprised of a crosslinked layer mixture of alkoxyalkylated polyamide contained on a polymer layer substrate of a polyalkylene terephthalate, a polyester, or mixtures thereof; and further including in said mixture at least one conductive component, at least one catalyst, at least one polysiloxane polymer, and a polyvinylbutyral.

20. A transfer assist blade in accordance with claim 19 wherein said plurality of layers comprises three polyester layers, and wherein said plurality of layers is in contact with said polymer layer substrate on which its opposite side is situated said check film layer.

21. A transfer assist blade in accordance with claim 19 with a resistance of from about 1×10 7 to about 1×10 9 ohm, and wherein said crosslinked mixture is present in an amount of from about 60 to about 90 weight percent based on the total solids, said crosslinked layer mixture is of a thickness of from about 0.1 to about 50 microns, said conductive component is present in an amount of from about 5 to about 20 weight percent based on the total solids, said catalyst is present in an amount of from about 0.01 to about 5 weight percent based on the total solids, and said polysiloxane polymer is present in an amount of from about 0.01 to about 5 weight percent based on the total solids.

22. A transfer assist blade in accordance with claim 19 further comprising a wear resistant layer of a polyethylene as represented by the following formula/structure

wherein n for said wear resistant layer represents the number of repeating segments of from about 100,000 to about 300,000.

23. A xerographic process for providing substantially uniform contact between a copy substrate and a toner developed image located on an imaging member, comprising providing said contact by using a toner transfer flexible assist blade that comprises a plurality of adhesive bonded layers, wherein said flexible transfer assist blade is a

Assignees

• Xerox Corp

Inventors

• Wu Jin
• Herko Jonathan H
• Zhang Lanhui
• Ma Lin

Classifications

• G03G15/1685 Primary

  Structure, details of the transfer member, e.g. chemical composition · CPC title

• B41M5/00 Primary

  Duplicating or marking methods; Sheet materials for use therein (by using light-sensitive materials G03; electrography, magnetography G03G {; repeatedly usable boards or tablets for writing or drawing B43L1/00}) · CPC title

• C08G59/4276

  Polyesters · CPC title

• C08G59/686

  containing nitrogen · CPC title

• G03G15/162 Primary

  details of the the intermediate support, e.g. chemical composition · CPC title