US6232405B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
SMA resin amic acids
Assignee: SRCV TECHNOLOGY HOLDING Inc
•
Filing: 2000-02-02
•
Granted: 2001-05-15
•
Expires: 2020-02-02
Abstract
Abstract Water soluble SMA resin amic acids are provided, as are methods for using the same to prepare water based pigment dispersions and inks.
Inventors
- 👤 John C. Schmidhauser
- 👤 Lisa M. Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:22
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C08; C08F; C08F8/00; C08F8/30; C08F8/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
46 words
An aqueous solution of a water soluble SMA resin amic acid reaction product of an SMA resin having a weight average molecular weight of up to about 50,000 and an acid number of at least about 270 with a low molecular weight primary or secondary amine.
Claim 2
Dependent Claim
46 words
An aqueous solution of a water soluble SMA resin amic acid reaction product of an SMA resin having a weight average molecular weight of up to about 50,000 and an acid number of at least about 270 with a low molecular weight primary or secondary amine.
Claim 3
Dependent Claim
19 words
An aqueous solution as in claim 1 wherein the SMA resin has an acid number of at least 350.
Claim 4
Dependent Claim
18 words
An aqueous solution as in claim 1 wherein the amine is a primary amine having 1-4 carbon atoms.
Claim 5
Dependent Claim
21 words
A water based pigment dispersion for inks comprising the aqueous solution of claim 1 , metallic or organic pigment, and water.
Claim 6
Dependent Claim
14 words
A dispersion as in claim 4 which further comprises a surfactant and a defoamer.
Claim 7
Dependent Claim
13 words
A dispersion as in claim 4 wherein the pigment is an organic pigment.
Claim 8
Dependent Claim
19 words
A printing ink composition comprising the dispersion of claim 6 ; water; and a water based styrene-acrylic ester emulsion.
Claim 9
Dependent Claim
13 words
A dispersion as in claim 4 wherein the pigment is a metallic pigment.
Claim 10
Dependent Claim
18 words
A dispersion as in claim 8 wherein the pigment is selected from an aluminum, copper or bronze alloy.
Claim 11
Dependent Claim
17 words
A metallic ink composition comprising the dispersion of claim 8 , water, and an emulsified polyolefin wax.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-05-14 | 2004-11-13 | 2005-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-14 | 2008-11-13 | 2009-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-14 | 2012-11-13 | 2013-05-15 | $7700.00 | Window Closed / Lapsed |