US5589522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink composition
Assignee: Funai Electric Co Ltd
•
Filing: 1994-12-21
•
Granted: 1996-12-31
•
Expires: 2014-12-21
Abstract
Abstract The invention relates to an aqueous ink composition for use in ink jet printers comprising an aqueous carrier, a pigment, and, preferably, a graft polymer having a polyacrylic acid backbone and hydrophobic side chains.
Inventors
- 👤 Bradley L. Beach
- 👤 James F. Feeman
- 👤 Anna M. Pearson
- 👤 Jing X. Sun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D17/00; C09D17/001; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08G; C08G81/00; C08G81/02; C08G81/021; C09D11/32; C09D11/324; C09D11/326
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
58 words
An aqueous ink composition for ink jet printers comprising an aqueous carrier, a pigment, and a polymer component selected from a graft polymer comprising: (a) a hydrophilic polyacrylic acid backbone of weight average molecular weight between 1000 and 5000; and (b) hydrophobic segment side chains, in amount of one to ten side chains attached to one backbone chain.
Claim 2
Dependent Claim
58 words
An aqueous ink composition for ink jet printers comprising an aqueous carrier, a pigment, and a polymer component selected from a graft polymer comprising: (a) a hydrophilic polyacrylic acid backbone of weight average molecular weight between 1000 and 5000; and (b) hydrophobic segment side chains, in amount of one to ten side chains attached to one backbone chain.
Claim 3
Dependent Claim
36 words
The aqueous ink as in claim 1 in which said graft polymer comprises ##STR8## Where x+y=20-200 z=1-10 (randomly dispersed) and R=alkyl having 6-36 carbon atoms, or ##STR9## where R 1 is alkyl having 4-20 carbon atoms.
Claim 4
Dependent Claim
27 words
The aqueous ink as in claim 1 in which said graft polymer comprises ##STR10## Where x+y=20-200 z=1-10 (randomly dispersed) n=2 to 40 R 2 =alkyl or aryl.
Claim 5
Dependent Claim
33 words
The aqueous ink as in claim 1 in which said graft polymer comprises ##STR11## Where x+y=20-200 z=1-10 (randomly dispersed) R 3 =H, CH 3 R 4 =H, CH 3 , OCH 3 n=10-60.
Claim 6
Dependent Claim
35 words
An aqueous ink composition for ink jet printers comprising an aqueous carrier, a pigment, and copolymer component selected from a graft polymer as follows: ##STR12## Where: y=6-20 x=1-5 R 5 =alkyl having 6-30 carbon atoms.
Claim 7
Dependent Claim
35 words
An aqueous ink composition for ink jet printers comprising an aqueous carrier, a pigment, and copolymer component selected from a graft polymer as follows: ##STR12## Where: y=6-20 x=1-5 R 5 =alkyl having 6-30 carbon atoms.
Claim 8
Dependent Claim
119 words
An aqueous ink composition for ink jet printer comprising an aqueous carrier, a pigment, and a polymer component comprising (a) a hydrophilic polymeric segment: and (b) a hydrophobic segment having a hydrolytically stable substituent connected to said hydrophilic segment by the following linkage: ##STR13## wherein R x is the remainder of said hydrophobic segment and the C is bonded to said hydrophilic segment, and where in R x is selected from the group consisting of alkyl having 6-36 atoms; ##STR14## where R 1 is alkyl having 4-20 carbon atoms; ##STR15## where n=2 to 40 and R 2 =alkyl or aryl; and ##STR16## where R 3 -H, CH 3 and R 4 =H, CH 3 , OCH 3 and n=10-60.
Claim 9
Dependent Claim
119 words
An aqueous ink composition for ink jet printer comprising an aqueous carrier, a pigment, and a polymer component comprising (a) a hydrophilic polymeric segment: and (b) a hydrophobic segment having a hydrolytically stable substituent connected to said hydrophilic segment by the following linkage: ##STR13## wherein R x is the remainder of said hydrophobic segment and the C is bonded to said hydrophilic segment, and where in R x is selected from the group consisting of alkyl having 6-36 atoms; ##STR14## where R 1 is alkyl having 4-20 carbon atoms; ##STR15## where n=2 to 40 and R 2 =alkyl or aryl; and ##STR16## where R 3 -H, CH 3 and R 4 =H, CH 3 , OCH 3 and n=10-60.
Claim 10
Dependent Claim
27 words
The aqueous ink of claim 6 in which said R x is alkyl having 6-36 atoms or ##STR17## where R 1 is alkyl having 4-20 carbon atoms.
Claim 11
Dependent Claim
22 words
The aqueous ink of claim 6 in which said R x is ##STR18## n=2 to 40 where R 2 =alkyl or aryl.
Claim 12
Dependent Claim
28 words
The aqueous ink of claim 6 in which said R x is ##STR19## where R 3 =H, CH 3 and R 4 =H, CH 3 , ##STR20## n=10-60.
Claim 13
Dependent Claim
14 words
The aqueous ink of claim 9 wherein said polymer component is a graft polymer.
Claim 14
Dependent Claim
14 words
The aqueous ink of claim 6 wherein said polymer component is a graft polymer.
Claim 15
Dependent Claim
14 words
The aqueous ink of claim 7 wherein said polymer component is a graft polymer.
Claim 16
Dependent Claim
14 words
The aqueous ink of claim 8 wherein said polymer component is a graft polymer.
References Cited (Backward Citations)
US4597794A
Cited
US5254425A
Cited
US5086307A
Cited
US5085698A
Cited
US5231131A
Cited
US5310778A
Cited
US5302197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-31 | 2000-07-01 | 2000-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-31 | 2004-07-01 | 2004-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-31 | 2008-07-01 | 2008-12-31 | $7700.00 | Window Closed / Lapsed |