Compositions and methods for producing latexes containing urethanes
First Claim
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1. A latex particle for use in ink-jet inks, comprising:
- a) a latex polymer core, said latex polymer core comprising at least one polymerized core monomer; and
b) a latex polymer shell, said latex polymer shell comprising at least two polymerized shell monomers including a urethane acrylate monomer;
wherein the latex polymer shell has a Tg that is at least 10°
C. greater than a Tg of the latex polymer core, and wherein the urethane acrylate monomer has the following structure;
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Abstract
A latex particle for use in ink-jet inks can comprise a latex polymer core and a latex polymer shell such that the latex polymer shell has a Tg that is at least 10° C. greater than the Tg of the latex polymer core. The latex polymer core can comprise at least one polymerized core monomer. The latex polymer shell can comprise at least two polymerized shell monomers including a urethane acrylate monomer.
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Citations
34 Claims
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1. A latex particle for use in ink-jet inks, comprising:
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a) a latex polymer core, said latex polymer core comprising at least one polymerized core monomer; and b) a latex polymer shell, said latex polymer shell comprising at least two polymerized shell monomers including a urethane acrylate monomer; wherein the latex polymer shell has a Tg that is at least 10°
C. greater than a Tg of the latex polymer core, and wherein the urethane acrylate monomer has the following structure; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of forming latex particulates for use in ink-jet inks, comprising:
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a) preparing a monomer emulsion including an aqueous phase and an organic monomer phase which includes at least one core monomer; b) polymerizing the at least one core monomer to form a latex polymer core dispersed in the aqueous phase; and c) copolymerizing at least two shell monomers including a urethane acrylate monomer; wherein the latex polymer shell has a Tg that is at least 10°
C. greater than a Tg of the latex polymer core, and wherein the urethane acrylate monomer has the following structure; - View Dependent Claims (14, 15, 16, 17, 18)
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19. A latex particle for use in ink-jet inks, comprising:
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a) a latex polymer core, said latex polymer core comprising at least one polymerized core monomer; and b) a latex polymer shell, said latex polymer shell comprising at least two polymerized shell monomers including a urethane acrylate monomer; wherein the latex polymer shell has a Tg that is at least 10°
C. greater than a Tg of the latex polymer core, and wherein the at least one latex polymerized core monomer includes a urethane acrylate monomer. - View Dependent Claims (20, 21, 22)
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23. A method of forming latex particulates for use in ink-jet inks, comprising:
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b) preparing a monomer emulsion including an aqueous phase and an organic monomer phase which includes at least one core monomer; b) polymerizing the at least one core monomer to form a latex polymer core dispersed in the aqueous phase; and c) copolymerizing at least two shell monomers including a urethane acrylate monomer; wherein the latex polymer shell has a Tg that is at least 10°
C. greater than a Tg of the latex polymer core, and wherein the at least two shell monomers or a third monomer of the latex polymer shell that is the same as the at least one core monomer is a urethane acrylate monomer. - View Dependent Claims (24, 25, 26)
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27. A latex particle for use in ink-jet inks, comprising:
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a) a latex polymer core, said latex polymer core comprising at least one polymerized core monomer; and b) a latex polymer shell, said latex polymer shell comprising at least two polymerized shell monomers including a urethane acrylate monomer; wherein the latex polymer shell has a Tg that is at least 10°
C. greater than a Tg of the latex polymer core and wherein the latex polymer shell has a urethane linkage as a pendant group.- View Dependent Claims (28, 29, 30)
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29. The latex particle of claim 27, wherein the latex polymer core has a Tg of about 0°
- C. to about 75°
C. and the latex polymer shell has a Tg of about 75°
C. to about 150°
C.
- C. to about 75°
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30. The latex particle of claim 27, wherein the latex polymer shell contains about 10 wt % to about 30 wt % of polymer shell monomers having urethane linkages.
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31. A method of forming latex particulates for use in ink-jet inks, comprising:
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a) preparing a monomer emulsion including an aqueous phase and an organic monomer phase which includes at least one core monomer; b) polymerizing the at least one core monomer to form a latex polymer core dispersed in the aqueous phase; and c) copolymerizing at least two shell monomers including a urethane acrylate monomer; wherein the latex polymer shell has a Tg that is at least 10°
C. greater than a Tg of the latex polymer core, and wherein the latex polymer shell has a urethane linkage as a pendant group. - View Dependent Claims (32, 33, 34)
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Specification