IP Library › Granted Patent US 11,952,448
Granted Patent B2
US 11,952,448 · App. 17/386,054 · Granted Apr 9, 2024

Organic additives and compositions containing the same

Inventors: Karen A. Moffat (Brantford, CA); Sepehr M. Tehrani (North York, CA); Kimberly D. Nosella (Ancaster, CA); Raysa Rodriguez Diaz (Burlington, CA); Richard P. N. Veregin (Mississauga, CA); Cuong Vong (Hamilton, CA)
Assignee: Xerox Corporation
C08F220/282B33Y70/10C08F220/1806C08F224/00G03G9/09758C08F20/26C08F20/28C08F24/00
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Quick Facts
Patent No.
US 11,952,448
App. No.
17/386,054
Granted
Apr 9, 2024
Kind
B2
Abstract

Compositions are provided which may comprise a plurality of organic additive particles, the particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both. Toner and additive manufacturing compositions comprising the organic additive particles are also provided.

Claims (17)

1. A composition comprising a plurality of organic additive particles, the particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is selected from a group consisting of glycerol formal (meth)acrylate, trimethylolpropane formal (meth)acrylate, isopropylideneglycerol (meth)acrylate, and combinations thereof, and the vinyl co-monomer is cyclohexyl methacrylate, and further wherein the particles have a D 50 particle size in a range of from about 20 nm to about 500 nm, and further wherein the composition is in the form of a dry powder.

2. The composition of claim 1 , wherein the dioxane/dioxolane monomer is glycerol formal (meth)acrylate.

3. The composition of claim 1 , wherein the dioxane/dioxolane monomer is present at an amount of from about 1 to about 50 weight percent of a total weight of monomers in the particles and the vinyl co-monomer is present at an amount of up to about 85 weight percent of the total weight of monomers in the particles.

4. The composition of claim 1 , the reactants further comprising a multifunctional vinyl monomer, and an additional vinyl monomer selected from a group consisting of fluorinated vinyl monomers, vinyl monomers comprising a nitrogen-containing group, and combinations thereof.

5. A toner composition comprising:

toner particles;

a colorant;

a plurality of organic additive particles, the organic additive particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer, a vinyl co-monomer, a multifunctional vinyl monomer, and an additional vinyl monomer selected from a group consisting of fluorinated vinyl monomers, vinyl monomers comprising a nitrogen-containing group, and combinations thereof, wherein the dioxane/dioxolane monomer is selected from a group consisting of glycerol formal (meth)acrylate, trimethylolpropane formal (meth)acrylate, isopropylideneglycerol (meth)acrylate, and combinations thereof, and the vinyl co-monomer is cyclohexyl methacrylate; and

optionally, a wax,

wherein the organic additive particles have a D 50 particle size in a range of from about 20 nm to about 500 nm, and further wherein the toner composition is in the form of a dry powder.

6. An additive manufacturing composition comprising a polymeric material, a metal material, or a combination thereof; and a plurality of organic additive particles, the particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and vinyl co-monomer, wherein the dioxane/dioxolane monomer is selected from a group consisting of glycerol formal (meth)acrylate, trimethylolpropane formal (meth)acrylate, isopropylideneglycerol (meth)acrylate, and combinations thereof, and the vinyl co-monomer is cyclohexyl methacrylate, wherein the organic additive particles have a D 50 particle size in a range of from about 20 nm to about 500 nm, and further wherein the additive manufacturing composition is in the form of a dry powder.

7. A composition comprising a plurality of organic additive particles, the organic additive particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the reactants comprise glycerol formal (meth)acrylate as the dioxane/dioxolane monomer, an aliphatic cyclo(meth)acrylate as the vinyl co-monomer, a multifunctional vinyl monomer, a monofunctional vinyl monomer comprising a nitrogen-containing group, and an initiator and further wherein the particles have a D 50 particle size in a range of from about 20 nm to about 500 nm, and further wherein the composition is in the form of a dry powder.

8. The composition of claim 7 , wherein the glycerol formal (meth)acrylate is present at an amount of from about 10 to about 30 weight percent of a total weight of monomers in the particles; the aliphatic cyclo(meth)acrylate is present at an amount of from about 50 to about 99 weight percent of the total weight of monomers in the particles; the multifunctional vinyl monomer is present at an amount of from about 8 to about 40 weight percent of the total weight of monomers in the particles; and the monofunctional vinyl monomer comprising the nitrogen-containing group is present at an amount of from about 0.1 to about 1.5 weight percent of the total weight of monomers in the particles.

9. The composition of claim 8 , wherein the particles consist of the polymerization product of the reactants and the reactants consist of the glycerol formal (meth)acrylate, the aliphatic cyclo(meth)acrylate, the multifunctional vinyl monomer, the monofunctional vinyl monomer comprising the nitrogen-containing group, and the initiator.

10. The composition of claim 9 , wherein the aliphatic cyclo(meth)acrylate is cyclohexyl methacrylate, the multifunctional vinyl monomer is divinylbenzene, and the monofunctional vinyl monomer comprising the nitrogen-containing group is dimethylaminoethyl methacrylate.

11. The toner composition of claim 5 , wherein the dioxane/dioxolane monomer is glycerol formal (meth)acrylate.

12. The additive manufacturing composition of claim 6 , wherein the dioxane/dioxolane monomer is glycerol formal (meth)acrylate.

Assignments (7)
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Jul 2, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 071785/0550 →
FIRST LIEN NOTES PATENT SECURITY AGREEMENT Recorded Apr 11, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070824/0001 →
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 062740/0214 Recorded May 18, 2023
From: CITIBANK, N.A., AS AGENT
To: XEROX CORPORATION
Reel/Frame 063694/0122 →
SECURITY INTEREST Recorded Nov 10, 2022
From: XEROX CORPORATION
To: CITIBANK, N.A., AS AGENT
Reel/Frame 062740/0214 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2021
From: MOFFAT, KAREN A.; TEHRANI, SEPEHR M.; NOSELLA, KIMBERLY D.; DIAZ, RAYSA RODRIGUEZ; VEREGIN, RICHARD P. N.; VONG, CUONG
To: XEROX CORPORATION
Reel/Frame 056993/0125 →
Continuity (1)
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