Granted Patent B2

US 9,982,088 · App. 15/356,307 · Granted May 29, 2018

Inventors: Karen A. Moffat (Brantford, CA); Dragan Nikolic (Edmonton, CA); Valerie M. Farrugia (Oakville, CA); Jordan H. Wosnick (Toronto, CA); Andriy Kovalenko (Edmonton, CA); Alexander Kobryn (Edmonton, CA); Sergey Gusarov (Edmonton, CA)

Assignees: XEROX CORPORATION; NATIONAL RESEARCH COUNCIL OF CANADA

C08G63/183C08G63/16C08G63/688C08G63/916G03G9/0804G03G9/0819G03G9/0825G03G9/08755G03G9/08797G03G9/09321G03G9/09371

Abstract

Claims (18)

1. A polyester polymer comprising 25 to 150 monomer units, the polyester polymer being prepared from at least one block oligomer of the monomer units, wherein a first monomer unit comprises an acid residue and an alcohol residue, wherein the first monomer unit comprises either a single pendant carboxylic acid side group or a single pendant carboxylic acid salt side group on said acid residue, wherein a second monomer unit comprises an acid residue and an alcohol residue neither of which is functionalized, wherein the at least one block oligomer comprises two adjacent first monomers centrally located in the at least one block oligomer and wherein the polyester polymer comprising the 25 to 150 monomer units forms a micelle of predetermined mass median diameter at 360K.

2. The polyester polymer of claim 1 , wherein the polyester polymer comprises 25 to 100 monomer units.

3. The polyester polymer of claim 2 , wherein the polyester polymer comprises 25 to 50 monomer units.

4. The polyester polymer of claim 2 , wherein the micelle formed at 360K has a predetermined mass median diameter of 30 Å to 100 nm.

5. The polyester polymer of claim 3 , wherein the micelle formed at 360K has a predetermined mass median diameter of 40 Å to 150 nm.

6. The polyester polymer of claim 3 , wherein the micelle formed at 360K has a predetermined mass median diameter of 47 Å to 200 nm.

7. A toner particle comprising the polyester polymer of claim 1 , the polyester polymer comprising 25 to 150 monomer units, wherein a monomer unit comprises an acid residue and an alcohol residue, wherein at least two adjacent monomer units each comprise either a single pendant carboxylic acid side group or a single pendant carboxylic acid salt side group on said acid residue, wherein the remaining monomer units are non-functionalized, and wherein the polyester polymer comprising 25 to 150 monomer units forms a micelle of predetermined mass median diameter at 360K.

8. The toner particle of claim 7 , wherein the polyester polymer comprises 25 to 100 monomer units.

9. The toner particle of claim 8 , wherein the polyester polymer comprises 25 to 50 monomer units.

10. The toner particle of claim 8 , wherein the micelle formed at 360K has a predetermined mass median diameter of 30 Å to 100 nm.

11. The toner particle of claim 9 , wherein the micelle formed at 360K has a predetermined mass median diameter of 40 Å to 150 nm.

12. The toner particle of claim 9 , wherein the micelle formed at 360K has a predetermined mass median diameter of 47 Å to 200 nm.

13. A developer comprising the toner particle of claim 7 .

14. A toner particle comprising a polyester polymer core and a resin shell disposed over the core, the polyester polymer comprising 25 to 150 monomer units, wherein a monomer unit comprises an acid residue and an alcohol residue, wherein at least two adjacent monomer units each comprise either a single pendant carboxylic acid side group or a single pendant carboxylic acid salt side group on said acid residue, wherein the remaining monomer units are non-functionalized, and wherein the polyester polymer comprising 25 to 150 monomer units forms a micelle of predetermined mass median diameter at 360K, wherein the resin shell is formed from a polymer having a weight average molecular weight of about 300,000 to about 350,000.

15. The toner particle of claim 14 , wherein the resin shell is formed from a polymer selected from the group consisting of a fluoropolymer, terpolymers of styrene, methyl methacrylates, silanes, tetrafluoroethylenes, and polymethylmethacrylate (PMMA).

16. The toner particle of claim 14 , wherein the resin shell is formed from a mixture of PMMA and polyvinylidenefluoride in a weight ratio range of from about 30 to about 70 wt % to about 70 to about 30 wt %.

17. The toner particle of claim 14 , wherein the polyester polymer comprises 25 to 100 monomer units.

18. The toner particle of claim 14 , wherein the micelle formed at 360K has a predetermined mass median diameter of 30 Å to 100 nm.

Assignments (10)

Continuity (3)