US5814685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink jet recording liquid
Assignee: Artience Co Ltd
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Filing: 1997-03-17
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Granted: 1998-09-29
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Expires: 2017-03-17
Abstract
Abstract The present invention relates to an aqueous ink jet recording liquid of a pigment type, which liquid has excellent stability and printing characteristics; and also to a process for the preparation of said liquid. The ink jet recording liquid of the present invention is obtained by dispersing a pigment and a resin in an aqueous medium. Said resin is an aqueous dispersion-type resin comprising a shell composed of a polymer having a glass transition point in the range of 50 DEG C. to 150 DEG C. and a core composed of a polymer having a glass transition point in the range of -100 DEG C. to 40 DEG C.
Inventors
- 👤 Sunao Satake
- 👤 Seiji Sawada
- 👤 Yasuharu Iida
- 👤 Tsutomu Fujigamori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:01
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/324; C09D11/326; Y; Y10; Y10S; Y10S525/00; Y10S525/902
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
An ink jet recording liquid obtained by dispersing a pigment and a resin in an aqueous medium, said resin comprising a shell composed of a polymer having a glass transition point in the range of 50° C. to 150° C. and a core composed of a polymer having a glass transition point in the range of -100° C. to 40° C., wherein said resin is contained in an amount in the range of 0.1 to 10 wt. % of the recording liquid.
Claim 2
Dependent Claim
82 words
An ink jet recording liquid obtained by dispersing a pigment and a resin in an aqueous medium, said resin comprising a shell composed of a polymer having a glass transition point in the range of 50° C. to 150° C. and a core composed of a polymer having a glass transition point in the range of -100° C. to 40° C., wherein said resin is contained in an amount in the range of 0.1 to 10 wt. % of the recording liquid.
Claim 3
Dependent Claim
48 words
An ink jet recording liquid of claim 1, wherein the polymer forming the shell has a glass transition point in the range of 60° C. to 120° C. and the polymer forming the core has a glass transition point in the range of -50° C. to 20° C.
Claim 4
Dependent Claim
25 words
An ink jet recording liquid of claim 1, wherein the resin has an average particle size in the range of 20 nm to 200 nm.
Claim 5
Dependent Claim
39 words
An ink jet recording liquid of claim 1, wherein the resin contains resin particles having a particle size of at least 1000 nm in an amount equal to or less than 10 wt. % of the aqueous dispersion-type resin.
Claim 6
Dependent Claim
29 words
An ink jet recording liquid of claim 1, wherein the resin is contained in an amount in the range of 0.5 to 5 wt. % of the recording liquid.
Claim 7
Dependent Claim
26 words
An ink jet recording liquid of claim 1, wherein the weight ratio of the shell to the core falls within the range of 10:90 to 70:30.
Claim 8
Dependent Claim
28 words
An ink jet recording liquid of claim 1, wherein the polymer forming the shell contains a carboxyl group and has an acid value of 50 to 250 mgKOH/g.
Claim 9
Dependent Claim
17 words
An ink jet recording liquid of claim 1, wherein the aqueous medium contains glycerin and 1,3-propane diol.
Claim 10
Dependent Claim
29 words
The ink jet recording liquid of claim 1, wherein the polymer forming the core is a polymer of one or more polymerizable monomers having an ethylenic unsaturated double bond.
Claim 11
Dependent Claim
30 words
The ink jet recording liquid of claim 9, wherein the one or more polymerizable monomers are selected from the group consisting of alkyl acrylate, alkyl methacrylate, styrene and mixtures thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-28 | 2002-03-30 | 2002-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-28 | 2006-03-30 | 2006-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-28 | 2010-03-30 | 2010-09-29 | $7700.00 | Window Closed / Lapsed |