Ink, ink cartridge, and inkjet recording method

US9505941B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9505941-B2
Application numberUS-201313888132-A
CountryUS
Kind codeB2
Filing dateMay 6, 2013
Priority dateMay 9, 2012
Publication dateNov 29, 2016
Grant dateNov 29, 2016

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Abstract

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An ink used for an inkjet recording method for discharging the ink from a recording head by an action of thermal energy contains self-dispersing carbon black, a polyurethane polymer having an acid value of 40 mg KOH/g or more, and an acryl polymer having an acid value of 100 mg KOH/g or more and 200 mg KOH/g or less.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for inhibiting burnt deposit on an inkjet recording head comprising a step of discharging an ink by an action of thermal energy from the recording head, wherein the ink contains self-dispersing carbon black, a polyurethane polymer, and an acryl polymer, wherein the self-dispersing carbon black is at least one of a (i) carbon black in which a phthalic acid group is bonded to the surface of the carbon black, and (ii) a carbon black in which —C 6 H 4…

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What does patent US9505941B2 cover?
An ink used for an inkjet recording method for discharging the ink from a recording head by an action of thermal energy contains self-dispersing carbon black, a polyurethane polymer having an acid value of 40 mg KOH/g or more, and an acryl polymer having an acid value of 100 mg KOH/g or more and 200 mg KOH/g or less.
Who is the assignee on this patent?
Canon Kk
What technology area does this patent fall under?
Primary CPC classification C09D11/324. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Nov 29 2016 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).