Patent US4589922A successfully refreshed from Google Patents.
US4589922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized pigment presscake
Assignee: Flint Ink Corp
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Filing: 1983-11-25
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Granted: 1986-05-20
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Expires: 2003-11-25
Abstract
Abstract In accordance with the instant invention, a high solids phthalocyanine pigment presscake prepared by methods well known to those skilled in the art is fluidized. The fluidization process comprises the steps of mixing the high solids pigment presscake with alkali metal hydroxide or ammonium hydroxide and rosin. In a preffered embodiment, the rosin, is dissolved in the hydroxide or aqueous solution thereof prior to mixing with the presscake.
Inventors
- 👤 Thomas E. Donegan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:50
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0032
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
30 words
A fluidized high solids phthalocyanine pigment presscake comprising by weight about 35 to 55 percent pigment, about 3.0 to 10.0 percent saponified rosin and about 40 to 60 percent water.
Claim 2
Dependent Claim
30 words
A fluidized high solids phthalocyanine pigment presscake comprising by weight about 35 to 55 percent pigment, about 3.0 to 10.0 percent saponified rosin and about 40 to 60 percent water.
Claim 3
Dependent Claim
21 words
The fluidized pigment presscake of claim 1 which also includes about 0.5 to 1.0 parts defoaming agent per 100 parts pigment.
Claim 4
Dependent Claim
14 words
The fluidized pigment presscake of claim 1 wherein said rosin is dimerized wood rosin.
Claim 5
Dependent Claim
22 words
The fluidized pigment presscake of claim 3 wherein said presscake also includes 0.5 to 1.0 parts defoaming agent per 100 parts pigment.
Claim 6
Dependent Claim
14 words
The fluidized pigment presscake of claim 1 wherein said rosin is hydrogenated wood rosin.
Claim 7
Dependent Claim
22 words
The fluidized pigment presscake of claim 5 wherein said presscake also includes 0.5 to 1.0 parts defoaming agent per 100 parts pigment.
Claim 8
Dependent Claim
88 words
A process of fluidizing a high solids phthalocyanine pigment presscake which contains by weight about 40 to 55 percent pigment and about 45 to 60 percent water comprising the steps of mixing said high solids pigment presscake with alkali metal or ammonium hydroxide and rosin the amount of said rosin being about 3.0 to 10.0 parts by weight per 100 parts by weight of said pigment and the amount of said hydroxide being about 0.25 to 1.25 parts by weight per 100 parts by weight of said pigment.
Claim 9
Dependent Claim
88 words
A process of fluidizing a high solids phthalocyanine pigment presscake which contains by weight about 40 to 55 percent pigment and about 45 to 60 percent water comprising the steps of mixing said high solids pigment presscake with alkali metal or ammonium hydroxide and rosin the amount of said rosin being about 3.0 to 10.0 parts by weight per 100 parts by weight of said pigment and the amount of said hydroxide being about 0.25 to 1.25 parts by weight per 100 parts by weight of said pigment.
Claim 10
Dependent Claim
19 words
The process of claim 7 wherein said rosin is dissolved in said hydroxide prior to mixing with said presscake.
Claim 11
Dependent Claim
24 words
The process of claim 8 wherein a defoaming agent is also added in amount of about 0.5 to 1.0 parts per 100 parts pigment.
Claim 12
Dependent Claim
12 words
The process of claim 9 wherein said rosin is dimerized wood rosin.
Claim 13
Dependent Claim
12 words
The process of claim 9 wherein said rosin is hydrogenated wood rosin.
References Cited (Backward Citations)
US4036652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |