Ink jet ink, ink cartridge, ink jet recording method and polymer particle

US8939570B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8939570-B2
Application numberUS-201213665278-A
CountryUS
Kind codeB2
Filing dateOct 31, 2012
Priority dateDec 2, 2011
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An ink jet ink containing a coloring material and a polymer particle, wherein the polymer particle has a core portion and a shell portion, the shell portion contains a copolymer A having a unit derived from a compound (a1) represented by a general formula (1) of R 1 —(C 2 H 4 O) n —R 2 where R 1 is at least one selected from a vinyl group, an allyl group, an acryloyl group and a methacryloyl group, R 2 is a hydrogen atom or an alkyl group, and n is 30-100, and a unit derived from an α,β-unsaturated hydrophobic compound (a2), a proportion of the unit derived from the compound (a1) to the copolymer A is 50-90% by mass or less, a proportion of the unit derived from the compound (a2) to the copolymer A is 10-50% by mass or less, and the core portion contains a polymer of an α,β-unsaturated hydrophobic compound (b).

First claim

Opening claim text (preview).

What is claimed is: 1. An ink jet ink comprising a coloring material and a polymer particle, wherein the polymer particle has a core portion and a shell portion, the shell portion contains a copolymer A having a unit derived from a compound (a1) represented by a general formula (1) of R 1 —(C 2 H 4 O) n —R 2 where R 1 is at least one selected from a vinyl group, an allyl group, an acryloyl group and a methacryloyl group, R 2 is a hydrogen atom or an alkyl group, and n is 30 o…

Assignees

Inventors

Classifications

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • C09D11/38Primary

    Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

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Frequently asked questions

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What does patent US8939570B2 cover?
An ink jet ink containing a coloring material and a polymer particle, wherein the polymer particle has a core portion and a shell portion, the shell portion contains a copolymer A having a unit derived from a compound (a1) represented by a general formula (1) of R 1 —(C 2 H 4 O) n —R 2 where R 1 is at least one selected from a vinyl group, an allyl group, an acryloyl group and a methacryloyl …
Who is the assignee on this patent?
Canon Kk
What technology area does this patent fall under?
Primary CPC classification C09D11/38. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).