Cold pressure fix toner compositions and processes

Patent metadata

Field	Value
Publication number	US-9996019-B1
Application number	US-201715449263-A
Country	US
Kind code	B1
Filing date	Mar 3, 2017
Priority date	Mar 3, 2017
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

Disclosed are cold pressure fix toner compositions that include a core of a colorant, and a mixture of a co-polyester-co-polydimethylsiloxane and an amorphous resin, and a polymer shell thereover.

First claim

What is claimed is:

1. A cold pressure fix toner composition comprising a core comprising a colorant, a crystalline co-polyester-co-polydimethylsiloxane resin and an amorphous resin, and a polymer shell thereover.

2. A toner in accordance with claim 1 wherein said crystalline co-polyester-co-polydimethylsiloxane resin is copoly-(ethylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane).

3. A toner in accordance with claim 1 wherein said crystalline co-polyester-co-polydimethylsiloxane resin is selected from the group consisting of copoly(hexylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane), copoly(butylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane), copoly-(ethylene sebacate)-copoly-(3-propyl-dimethylsiloxane), copoly-(butylene sebacate)-copoly-(3-propyl-dimethylsiloxane), copoly-(butylene decanoate)-copoly-(3-propyl-dimethylsiloxane), copoly-(ethylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane), and a copoly-(nonylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane).

4. A toner in accordance with claim 1 wherein said amorphous resin is selected from the group consisting of terpoly-(propoxylated bisphenol A-terephthalate)-terpoly-(propoxylated bisphenol A-dodecenylsuccinate)-terpoly-(propoxylated bisphenol A-fumarate), terpoly-(propoxylated bisphenol A-terephthalate)-terpoly-(propoxylated bisphenol A-dodecenylsuccinate)-terpoly-(ethoxylated bisphenol A-terephthalate)-terpoly-(ethoxylated bisphenol A-dodecenylsuccinate)-terpoly-(propoxylated bisphenol A-trimellitate)-terpoly-(ethoxylated bisphenol A-trimellitate), poly(propoxylated bisphenol A-co-fumarate), copoly(propoxylated bisphenol-fumarate)-copoly(trimethylol propoxylated-bisphenol-fumarate), copoly(ethoxylated bisphenol-fumarate)-copoly(trimethylolpropoxylated-bisphenol-fumarate), and copoly(butoxylated bisphenol-fumarate)-copoly(trimethylol propoxylated-bisphenol-fumarate).

5. A toner in accordance with claim 1 wherein said amorphous resin is a terpoly-(propoxylated bisphenol A-terephthalate)-terpoly-(propoxylated bisphenol A-dodecenylsuccinate)-terpoly-(propoxylated bisphenol A-fumarate).

6. A toner in accordance with claim 1 wherein said crystalline co-polyester-co-polydimethylsiloxane resin is present in an amount of from about 10 percent by weight to about 75 percent by weight of the toner, and said amorphous resin is present in an amount of from about 25 percent by weight to about 50 percent by weight of the toner.

7. A toner in accordance with claim 1 wherein said polymer shell is comprised of an amorphous resin selected from the group consisting of amorphous resins of terpoly-(propoxylated bisphenol A-terephthalate)-terpoly-(propoxylated bisphenol A-dodecenylsuccinate)-terpoly-(propoxylated bisphenol A-fumarate), copoly-(propoxylated bisphenol A-terephthalate)-copoly-(propoxylated bisphenol A-dodecenylsuccinate)-copoly-(ethoxylated bisphenol A-terephthalate)-copoly-(ethoxylated bisphenol A-dodecenylsuccinate)-copoly-(propoxylated bisphenol A-trimellitate)-copoly-(ethoxylated bisphenol A-trimellitate), poly(propoxylated bisphenol A-co-fumarate), copoly(propoxylated bisphenol-fumarate)-copoly(trimethylol propoxylated-bisphenol-fumarate), copoly(ethoxylated bisphenol-fumarate)-copoly(trimethylolpropoxylated-bisphenol-fumarate), terpoly-(propoxylated bisphenol A-terephthalate)-terpoly-(propoxylated bisphenol A-dodecenylsuccinate)-terpoly-(propoxylated bisphenol A-fumarate)-(propoxylated bisphenol A-trimellitate), and copoly(propoxylated 1,4-diphenol-fumarate)-copoly(glycerinoxylated-diphenol-fumarate).

8. A toner in accordance with claim 1 wherein said polymer shell is comprised of a polystyrene acrylate amorphous resin.

9. A toner in accordance with claim 1 wherein said polymer shell is derived from styrene monomers or, acrylate monomers selected from the group consisting of polystyrene-acrylate, polystyrene methacrylate, polystyrene-butadiene, polyacrylate, polymethacrylate, polystyrene-2-ethylhexyl acrylate, polystyrene-2-ethylhexyl methacrylate, and mixtures thereof.

10. A toner in accordance with claim 1 wherein said shell encompasses from about 10 weight percent to about weight 40 percent of the toner.

11. A toner in accordance with claim 1 wherein said colorant is selected from at least one of carbon black, cyan, magenta, yellow, and mixtures thereof.

12. A toner in accordance with claim 1 further containing a wax.

13. A toner in accordance with claim 12 wherein said wax is polyethylene, polypropylene, or mixtures thereof, and wherein said wax is present in an amount of from about 1 to about 10 percent of the solids.

14. A cold pressure fix toner comprising a core comprising a colorant, wax, optional additives, and a mixture of a co-polyester-co-polydimethylsiloxane and an amorphous resin, and a shell thereover comprised of a polymer, and wherein said co-polyester-co-polydimethylsiloxane is selected from the group consisting of copoly(hexylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane), copoly(butylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane), copoly-(ethylene sebacate)-copoly-(3-propyl-dimethylsiloxane), copoly-(butylene sebacate)-copoly-(3-propyl-dimethylsiloxane), copoly-(butylene decanoate)-copoly-(3-propyl-dimethylsiloxane), copoly-(ethylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane), and a copoly-(nonylene dodecanoate)-copoly-(3-propyl-dimethylsiloxane).

15. A cold pressure fix toner in accordance with claim 14 wherein said amorphous resin is selected from the group consisting of terpoly-(propoxylated bisphenol A-terephthalate)-terpoly-(propoxylated bisphenol A-dodecenylsuccinate)-terpoly-(propoxylated bisphenol A-fumarate) and copoly-(propoxylated bisphenol A-terephthalate)-copoly-(propoxylated bisphenol A-dodecenylsuccinate)-copoly-(ethoxylated bisphenol A-terephthalate)-copoly-(ethoxylated bisphenol A-dodecenylsuccinate)-copoly-(propoxylated bisphenol A-trimellitate)-copoly-(ethoxylated bisphenol A-trimellitate) and wherein said shell polymer is selected from the group consisting of terpoly-(propoxylated bisphenol A-terephthalate)-terpoly-(propoxylated bisphenol A-dodecenylsuccinate)-terpoly-(propoxylated bisphenol A-fumarate) and copoly-(propoxylated bisphenol A-terephthalate)-copoly-(propoxylated bisphenol A-dodecenylsuccinate)-copoly-(ethoxylated bisphenol A-terephthalate)-copoly-(ethoxylated bisphenol A-dodecenylsuccinate)-copoly-(propoxylated bisphenol A-trimellitate)-copoly-(ethoxylated bisphenol A-trimellitate).

16. A cold pressure fix toner composition comprising a core comprising a mixture of a colorant, a wax, and a co-polyester-co-polydimethylsiloxane crystalline resin and an amorphous resin selected from the group consisting of copoly-(propoxylated bisphenol A-terephthalate)-copoly-(propoxylated bisphenol A-dodecenylsuccinate)-copoly-(propoxylated bisphenol A-fumarate), copoly-(propoxylated bisphenol A-terephthalate)-copoly-(propoxylated bisphenol A-dodecenylsuccinate)-copoly-(ethoxylated bisphenol A-terephthalate)-copoly-(ethoxylated bisphenol A-dodecenylsuccinate)-copoly-(propoxylated bisphenol A-trimellitate)-copoly-(ethoxylated bisphenol A-trimellitate), poly(propoxylated bisphenol A-co-fumarate), copoly(propoxylated bisphenol-fumarate)-copoly(trimethylolpropoxylated-bisphenol-fumarate), copoly(ethoxylated bisphenol-fumarate)-copoly(trimethylolpropoxylated-bisphenol-fumarate), copoly-(propoxylated bisphenol A-terephthalate)-copoly-(propoxylated bisphenol A-dodecenylsuccinate)-copoly-(propoxylated bisphenol A-fumarate)-(propoxylated bisphenol A-trimellitate), and copoly(propoxylated 1,4-diphenol-fumarate)-copoly(glycerinoxylated-diphenol-fumarate) and a shell encasing said core, which shell is sel

Assignees

• Xerox Corp

Inventors

• Wang Yulin
• Sacripante Guerino G
• Veregin Richard P N
• Zwartz Edward G
• Brockman Kathryne S

Classifications

• C08G77/445

  containing polyester sequences · CPC title

• C08L83/10

  Block- or graft-copolymers containing polysiloxane sequences (obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C08L51/08, C08L53/00) · CPC title

• G03G9/09371 Primary

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C08G77/50

  by carbon linkages · CPC title

• G03G9/08755

  Polyesters · CPC title