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US5500457A Expired / Lapsed US ⏱️ 0.0 years remaining

Water based toner receptive core/shell latex compositions

Assignee: 3M Co
•
Filing: 1994-11-18
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Granted: 1996-03-19
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Expires: 2014-11-18
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Abstract

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 T g 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.

Inventors

  • 👤 Manisha Sarkar
  • 👤 Ying-Yuh Lu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 18:39
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06; Y; Y10; Y10S; Y10S525/00; Y10S525/902; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31786; Y10T428/31797

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 340 words
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 T g 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; 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 μm to about 15 μm, comprising: 1) at least about 20 parts by weight polymerized diol di(meth)acrylate having a formula H.sub.2 C=CR.sup.2 COOC.sub.n H.sub.2n OOCR.sup.2 ═CH wherein R 2 is hydrogen or a methyl group, and n is an integer from about 4 to about 18, H.sub.2 C=CR.sup.2 COOC.sub.m H.sub.2m+1 wherein R 2 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 μm to about 15 μm 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.
Claim 2
Dependent Claim 340 words
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 T g 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; 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 μm to about 15 μm, comprising: 1) at least about 20 parts by weight polymerized diol di(meth)acrylate having a formula H.sub.2 C=CR.sup.2 COOC.sub.n H.sub.2n OOCR.sup.2 ═CH wherein R 2 is hydrogen or a methyl group, and n is an integer from about 4 to about 18, H.sub.2 C=CR.sup.2 COOC.sub.m H.sub.2m+1 wherein R 2 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 μm to about 15 μm 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.
Claim 3
Dependent Claim 27 words
A water-based toner-receptive composition according to claim 1 wherein the ratio of core to shell of said core/shell latex polymer ranges from about 25/75 to about 50/50.
Claim 4
Dependent Claim 41 words
A water-based toner-receptive composition according to claim 1 wherein said α,β-ethylenically unsaturated monomer is selected from the group consisting of methyl acrylate, ethyl acrylate, methyl (meth)acrylate, isobutyl (meth) acrylate, isodecyl (meth)acrylate, cyclohexyl (meth) acrylate and n-butyl acrylate, styrene, and vinyl esters.
Claim 5
Dependent Claim 28 words
A water-based toner-receptive composition according to claim 1 wherein said bicyclic (meth)acrylate is selected from the group consisting of dicyclopentenyl (meth) acrylate, norbornyl (meth) acrylate, isobornyl (meth) acrylate.
Claim 6
Dependent Claim 67 words
A water-based toner-receptive composition according to claim 1 further comprising from 0 to about 20 parts of a polar monomer selected from the group consisting of (meth) acrylic acid, hydroxyalkyl (meth) acrylates; N-alkylacrylamide; N,N-dialkyl amino alkyl (meth) acrylate; monoalkyl amino alkyl (meth)acrylate, the cationic salt of N,N-dialkyl amino alkyl (meth)acrylate, and N-alkyl amino alkyl (meth)acrylate, all of said alkyl groups containing up to about 12 carbon atoms.
Claim 7
Dependent Claim 20 words
A water-based toner-receptive composition according to claim 1 further comprising a crosslinker selected from the group consisting of polyfunctional aziridines.
Claim 8
Dependent Claim 46 words
A water-based toner-receptive composition according to claim 6 wherein said crosslinker selected from the group consisting of trimethylolpropane-tris-(β-(N-Aziridinyl)propionate), Pentaerythritol-tris-(β-(N-aziridinyl)propionate), trimethylolpropane-tris-(β-(N-methylaziridinyl)propionate), ureaformaldehyde, melamine formaldehyde, isocyanate, multifunctional epoxy polymers, alkyldialkoxy silane, γ-aminopropyl trimethoxysilane, vinyl triethoxy silane, vinyl tris(β-methoxy ethoxy)-silane, vinyl triacetoxy silane, γ-methacryloxypropyltrimethyoxy silane, and γ-(β-amino ethyl)aminopropyl trimethoxysilane.
Claim 9
Dependent Claim 13 words
A water-based toner-receptive composition according to claim 1 further comprising a silica particle.

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Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-03-19 1999-09-18 2000-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-03-19 2003-09-18 2004-03-19 $3760.00 Window Closed / Lapsed
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