Polyester toner compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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Details

C525S383000, C430S109100, C430S109400

Reexamination Certificate

active

08053532

ABSTRACT:
An emulsion aggregation polyester toner including a polyester resin having modified end groups, wherein the polyester resin includes at least one carboxylic end group. A process of making the toner by oxidation of a polyester resin including reacting the polyester with a hypohalite and a phase transfer catalyst results in a polyester resin endcapped with at least one acidic group. Stable xerographic charging in all ambient environments for all colors, and excellent resistivity and cohesion of the toner, may be achieved.

REFERENCES:
patent: 3837798 (1974-09-01), Yelin et al.
patent: 4254207 (1981-03-01), Landoll et al.
patent: 4298672 (1981-11-01), Lu
patent: 4338390 (1982-07-01), Lu
patent: 4990424 (1991-02-01), Van Dusen et al.
patent: 5166026 (1992-11-01), Fuller et al.
patent: 5290654 (1994-03-01), Sacripante et al.
patent: 5302486 (1994-04-01), Patel et al.
patent: 5593807 (1997-01-01), Sacripante et al.
patent: 5686218 (1997-11-01), Liebermann et al.
patent: 5691095 (1997-11-01), Shinzo et al.
patent: 5783729 (1998-07-01), Brown et al.
patent: 2003/0232268 (2003-12-01), Sacripante et al.
patent: 2004/0191658 (2004-09-01), Kubo
patent: 2004/0209182 (2004-10-01), Kawase
patent: 2005/0047961 (2005-03-01), Bains et al.
patent: 2005/0164112 (2005-07-01), Ohki et al.
patent: 2006/0063086 (2006-03-01), Sacripante et al.
patent: 2008/0107990 (2008-05-01), Field et al.
patent: 1 862 864 (2007-12-01), None
patent: 1 890 194 (2008-02-01), None
patent: 1 918 781 (2008-05-01), None
patent: 1 925 983 (2008-05-01), None
patent: 1 995 639 (2008-11-01), None
patent: 2 012 185 (2009-01-01), None
patent: 2 083 034 (2009-07-01), None
patent: 1 525 704 (1978-09-01), None
patent: A 2004-287422 (2004-10-01), None
patent: A 2004-287427 (2004-10-01), None
patent: A 2004-295110 (2004-10-01), None
patent: A 2005-17991 (2005-01-01), None
European Search Report in European Patent Application No. EP 07 12 2594, mailed Feb. 29, 2008.
U.S. Office Action in U.S. Appl. No. 11/614,114, mailed Sep. 30, 2009.
European Official Communication dated Oct. 20, 2009.

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