Water based toner receptive core/shell latex compositions
First Claim
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1. A water-based toner-receptive composition suitable for electrophotographic or xerographic imaging, comprising:
- a) from about 65 to about 99 parts of a transparent film-forming core/shell latex polymer, wherein the ratio of core to shell of said core/shell latex polymer ranges from about 10/90 to about 90/10, with the core having a lower Tg than the shell, wherein said polymer comprises1) a core formed from;
i) from about 60 to 100 parts of at least one α
,β
-ethylenically unsaturated monomer having from about 1 to about 12 carbon atoms; and
ii) 0 to about 40 parts of at least one monomer selected from the group consisting of bicyclic alkyl(meth)acrylates and aromatic (meth)acrylates; and
2) a shell formed from;
i) 0 to about 65 parts of at least one monomer selected from the group consisting of bicyclic alkyl (meth)acrylates and aromatic (meth)acrylates; and
ii) about 35 to 100 parts of at least one α
,β
-ethylenically unsaturated monomer having from about 1 to about 8 carbon atoms;
b) from about 1 to about 15 parts polymeric particles having an average particle size of from about 0.25 μ
m to about 15 μ
m, comprising;
1) at least about 20 parts by weight polymerized diol di(meth)acrylate having a formula
space="preserve" listing-type="equation">H.sub.2 C=CR.sup.2 COOC.sub.n H.sub.2n OOCR.sup.2 ═
CHwherein R2 is hydrogen or a methyl group, and n is an integer from about 4 to about 18,
space="preserve" listing-type="equation">H.sub.2 C=CR.sup.2 COOC.sub.m H.sub.2m+1wherein R2 is hydrogen or a methyl group and m is an integer of from about 12 to about 40, and3) from 0 to about 30 parts of at least one copolymerized ethylenically unsaturated monomer selected from the group consisting of vinyl esters, acrylic esters, methacrylic esters, styrene, derivatives thereof, and mixtures thereof, a, b and c having a total of 100 parts, and having an average particle size of from about 0.25 μ
m to about 15 μ
m and; and
c) from 0 to about 20 parts of an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.
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Abstract
A water-based toner-receptive composition suitable for electrophotographic or xerographic imaging, comprising:
a) from about 65 to about 99 parts of a transparent film-forming core/shell latex polymer, wherein the ratio of core to shell of said core/shell latex polymer ranges from about 10/90 to about 90/10, with the core having a lower Tg than the shell;
b) from about 1 to about 15 parts polymeric particles; and
c) from 0 to about 20 parts of an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.
79 Citations
8 Claims
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1. A water-based toner-receptive composition suitable for electrophotographic or xerographic imaging, comprising:
-
a) from about 65 to about 99 parts of a transparent film-forming core/shell latex polymer, wherein the ratio of core to shell of said core/shell latex polymer ranges from about 10/90 to about 90/10, with the core having a lower Tg than the shell, wherein said polymer comprises 1) a core formed from; i) from about 60 to 100 parts of at least one α
,β
-ethylenically unsaturated monomer having from about 1 to about 12 carbon atoms; andii) 0 to about 40 parts of at least one monomer selected from the group consisting of bicyclic alkyl(meth)acrylates and aromatic (meth)acrylates; and 2) a shell formed from; i) 0 to about 65 parts of at least one monomer selected from the group consisting of bicyclic alkyl (meth)acrylates and aromatic (meth)acrylates; and ii) about 35 to 100 parts of at least one α
,β
-ethylenically unsaturated monomer having from about 1 to about 8 carbon atoms;b) from about 1 to about 15 parts polymeric particles having an average particle size of from about 0.25 μ
m to about 15 μ
m, comprising;1) at least about 20 parts by weight polymerized diol di(meth)acrylate having a formula
space="preserve" listing-type="equation">H.sub.2 C=CR.sup.2 COOC.sub.n H.sub.2n OOCR.sup.2 ═
CHwherein R2 is hydrogen or a methyl group, and n is an integer from about 4 to about 18,
space="preserve" listing-type="equation">H.sub.2 C=CR.sup.2 COOC.sub.m H.sub.2m+1wherein R2 is hydrogen or a methyl group and m is an integer of from about 12 to about 40, and 3) from 0 to about 30 parts of at least one copolymerized ethylenically unsaturated monomer selected from the group consisting of vinyl esters, acrylic esters, methacrylic esters, styrene, derivatives thereof, and mixtures thereof, a, b and c having a total of 100 parts, and having an average particle size of from about 0.25 μ
m to about 15 μ
m and; andc) from 0 to about 20 parts of an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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Current Assignee3M Company
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Original Assignee3M Company
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InventorsLu, Ying-Yuh, Sarkar, Manisha
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Primary Examiner(s)Szekely, Peter A.
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Application NumberUS08/342,158Time in Patent Office487 DaysField of Search523/201, 524/504, 525/81, 525/82, 525/85, 525/902US Class Current523/201CPC Class CodesC08F 2/22 Emulsion polymerisationC08F 265/06 Polymerisation of acrylate ...Y10S 525/902 Core-shellY10T 428/273 of coatingY10T 428/31504 Composite [nonstructural la...Y10T 428/31797 Next to addition polymer fr...
