Patent US5104449A successfully refreshed from Google Patents.
US5104449A
Expired / Lapsed
US
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Water-soluable rosin-based coatings and inks
Assignee: Union Camp Patent Holding Inc
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Filing: 1991-08-09
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Granted: 1992-04-14
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Expires: 2011-08-09
Abstract
Abstract Stable pigmented coating composition, suitable as a package coating varnish or ink, including newsprint ink or rotogravure ink, comprises a suspension of at least 10 weight % pigment in an aqueous solution of at least 5 weight % water soluble modified rosin, the water-soluble modified rosin having an acid number of at least 150 and comprising the reaction product of rosin, formaldehyde and at least one of an ortho- or para-carboxyl-substituted phenol. The weight ratio of pigment to resin is from 5:1 to 1:5.
Inventors
- 👤 Mark S. Pavlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:22
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D161/00; C09D161/04; C09D161/06; C09D161/14; C09F; C09F1/00; C09F1/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
Stable, pigmented coating composition comprising: at least about 10 weight % pigment; and an aqueous solution of at least 5 weight % water-soluble, phenol-modified rosin resin, said phenol-modified rosin resin containing at least 50 weight % rosin and at least 1 weight % of an ortho- or para-carboxyl-substituted phenol, and having an acid number of at least 150, and consisting of the reaction product of said rosin, formaldehyde and said ortho- or para-carboxyl-substituted phenol.
Claim 2
Dependent Claim
74 words
Stable, pigmented coating composition comprising: at least about 10 weight % pigment; and an aqueous solution of at least 5 weight % water-soluble, phenol-modified rosin resin, said phenol-modified rosin resin containing at least 50 weight % rosin and at least 1 weight % of an ortho- or para-carboxyl-substituted phenol, and having an acid number of at least 150, and consisting of the reaction product of said rosin, formaldehyde and said ortho- or para-carboxyl-substituted phenol.
Claim 3
Dependent Claim
12 words
A coating composition, as recited in claim 1, further including other resins.
Claim 4
Dependent Claim
28 words
A coating composition, as recited in claim 1, wherein said ortho- or para-carboxyl-substituted phenol is selected from the group consisting of para-hydroxybenzoic acid, ortho-hydroxybenzoic acid and resorcylic acid.
Claim 5
Dependent Claim
17 words
A coating composition, as recited in claim 1, wherein said ortho- or para-carboxyl-substituted phenol is para-hydroxybenzoic acid.
Claim 6
Dependent Claim
23 words
A coating composition, as recited in claim 4, wherein the weight ratio of pigment to modified rosin resin is from 5:1 to 1:5.
Claim 7
Dependent Claim
12 words
A coating composition, as recited in claim 5, further including a base.
Claim 8
Dependent Claim
26 words
A coating composition, as recited in claim 6, wherein said base is selected from the group consisting of organic amines, sodium hydroxide, potassium hydroxide and ammonia.
Claim 9
Dependent Claim
13 words
A coating composition, as recited in claim 7, having a pH of 8-10.
Claim 10
Dependent Claim
13 words
A coating composition, as recited in claim 8, having a pH of 9.
Claim 11
Dependent Claim
15 words
A coating composition, as recited in claim 9, further including at least one additional resin.
Claim 12
Dependent Claim
30 words
A coating composition, as recited in claim 10, wherein said additional resin is selected from the group consisting of fumaric acid-modified rosin resins, maleic anhydride-modified rosin resins and acrylic resins.
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) | 1995-04-14 | 1995-10-14 | 1996-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-14 | 1999-10-14 | 2000-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-14 | 2003-10-14 | 2004-04-14 | $7700.00 | Window Closed / Lapsed |