Patent US4544688A successfully refreshed from Google Patents.
US4544688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-containing phenolic coating compositions
Assignee: Union Carbide Corp
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Filing: 1984-05-29
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Granted: 1985-10-01
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Expires: 2004-05-29
Abstract
Abstract Divalent metal complexes of novolacs act as modifiers for alkyds, drying oils, epoxy esters, epoxy resins and thermoplastic polyhydroxyethers. Lamellar, non-lamellar and spherical pigments improve corrosion and salt spray resistance of coatings made from these compositions.
Inventors
- 👤 George A. Salensky
- 👤 John S. Fry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:22
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08G; C08G8/00; C08G8/28; C08K; C08K3/00; C08K3/02; C08K3/08; C09D163/00; C09D163/10; C09D171/00; C09D5/00; C09D5/08
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
142 words
Coating composition expressed on a solvent free basis comprising: (A) an organic binder consisting essentially of: (1) about 4 to about 40 volume percent of a divalent metal complex of a para-substituted novolac phenol-aldehyde condensation product; (2) about 60 to about 96 volume percent product of an organic coating material selected from the group consisting of alkyd resins, drying oils, epoxy resins and thermoplastic polyhydroxyethers; and (B) based on the total coating composition, a pigment selected from the group consisting essentially of (i) aluminum-bronze lamellar pigments at a pigment volume concentration of about 7 to about 15 volume percent, (ii) about 20 to about 40 volume percent of a non-lamellar pigment selected from the group consisting of talc, titanium dioxide, zinc phosphate, calcium carbonate, manganese oxide and iron oxide, and (iii) about 50 to about 65 volume percent of particulate zinc metal.
Claim 2
Dependent Claim
142 words
Coating composition expressed on a solvent free basis comprising: (A) an organic binder consisting essentially of: (1) about 4 to about 40 volume percent of a divalent metal complex of a para-substituted novolac phenol-aldehyde condensation product; (2) about 60 to about 96 volume percent product of an organic coating material selected from the group consisting of alkyd resins, drying oils, epoxy resins and thermoplastic polyhydroxyethers; and (B) based on the total coating composition, a pigment selected from the group consisting essentially of (i) aluminum-bronze lamellar pigments at a pigment volume concentration of about 7 to about 15 volume percent, (ii) about 20 to about 40 volume percent of a non-lamellar pigment selected from the group consisting of talc, titanium dioxide, zinc phosphate, calcium carbonate, manganese oxide and iron oxide, and (iii) about 50 to about 65 volume percent of particulate zinc metal.
Claim 3
Dependent Claim
10 words
Composition of claim 1 wherein the divalent metal is zinc.
Claim 4
Dependent Claim
10 words
Composition of claim 1 wherein the divalent metal is nickel.
Claim 5
Dependent Claim
10 words
Composition of claim 1 wherein the divalent metal is manganese.
Claim 6
Dependent Claim
21 words
Composition of claim 1 containing an aluminum bronze lamellar pigment, at a Pigment Volume Concentration of about 7 to about 15%.
Claim 7
Dependent Claim
14 words
Composition of claim 1 containing non-lamellar pigments at a Pigment Volume Concentration of 20-40%.
Claim 8
Dependent Claim
13 words
Composition of claim 1 wherein the organic coating material is a drying oil.
Claim 9
Dependent Claim
11 words
Composition of claim 7 wherein the drying oil is tung oil.
Claim 10
Dependent Claim
11 words
Composition of claim 7 wherein the drying oil is linseed oil.
Claim 11
Dependent Claim
24 words
Composition of claim 1 wherein the phenol of the novolac phenol-aldehyde condensation product is a 80:20 mixture by weight of t-butyl phenol and 2,2-bis(p-hydroxyphenyl)propane.
Claim 12
Dependent Claim
13 words
Composition of claim 1 wherein the organic coating material is an alkyd resin.
Claim 13
Dependent Claim
14 words
Composition of claim 1 wherein the organic coating material is a thermosetting epoxy resin.
Claim 14
Dependent Claim
13 words
Composition of claim 12 wherein the epoxy resin is derived from bisphenol A.
Claim 15
Dependent Claim
13 words
Composition of claim 1 wherein the organic coating material is a thermoplastic polyhydroxyether.
Claim 16
Dependent Claim
14 words
Composition of claim 14 containing zinc pigment at a Pigment Volume Concentration of 50-65%.
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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) | 1988-09-30 | 1989-04-01 | 1989-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-30 | 1993-04-01 | 1993-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-30 | 1997-04-01 | 1997-10-01 | $7700.00 | Window Closed / Lapsed |