US4990184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water reducible soft coating compositions
Assignee: Ashland LLC
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Filing: 1989-04-12
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Granted: 1991-02-05
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Expires: 2009-04-12
Abstract
Abstract Water reducible coating compositions comprising: an oxidized slack wax, paraffin wax or petrolatum; a low molecular weight polyethylene, polybutene, or polypropylene; naphthenic or paraffinic oil; a salt of a sulfonic acid, a nitrate, a nitrite, a borate or an amine soap of a fatty acid; a mixture of mineral spirits and ethylene glycol monopropyl ether; an unsaturated fatty acid (preferably oleic acid) and a fugitive amine (preferably 2-amino-2-methyl-1-propanol); and water are disclosed which provides improved corrosion resistant coatings for ferrous alloys.
Inventors
- 👤 Daniel J. Dotson
- 👤 Stephen E. See
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:20
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
248 words
An oil-in-water coating composition having emulsified wax-containing particles capable of imparting a corrosion resistant coating to metal surfaces that is easily removed with hot water, said composition comprising: (a) about 10 to 40% by weight of a film forming material selected from the group consisting of slack wax, paraffin wax, or petrolatum, that are oxidized or unoxidized, or a mixture thereof; (b) about 0.5 to 10% by weight of a film forming polymer selected from the group consisting of: a substantially linear polyethylene molecule with a terminal carboxylic acid group having a softening point determined according to ASTM E-28 in the range of about 158° F. (70° C.) to 230°F. (110° C.) and a molecular weight of at least 1500; polybutene characterized as an isobutene polymer having an average molecular weight in the range of about 400-1900; and a polypropylene characterized as a hydrocarbyl having a molecular weight in the range of about 400-1900; (c) about 0.5 to 10% by weight of a wax modifier selected from the group consisting of naphthenic oil and paraffinic oil; (d) about 0.5 to about 10% by weight of a corrosion inhibitor selected from the group consisting of a sulfonic acid salt or an amine soap of a fatty acid; (e) about 1 to 15% by weight of a processing aid comprising mineral spirits and ethylene glycol monopropyl ether; (f) About 0.5 to 15% by weight of a dual component anionic surfactant; and (g) about 30% to 80% by weight of water.
Claim 2
Dependent Claim
248 words
An oil-in-water coating composition having emulsified wax-containing particles capable of imparting a corrosion resistant coating to metal surfaces that is easily removed with hot water, said composition comprising: (a) about 10 to 40% by weight of a film forming material selected from the group consisting of slack wax, paraffin wax, or petrolatum, that are oxidized or unoxidized, or a mixture thereof; (b) about 0.5 to 10% by weight of a film forming polymer selected from the group consisting of: a substantially linear polyethylene molecule with a terminal carboxylic acid group having a softening point determined according to ASTM E-28 in the range of about 158° F. (70° C.) to 230°F. (110° C.) and a molecular weight of at least 1500; polybutene characterized as an isobutene polymer having an average molecular weight in the range of about 400-1900; and a polypropylene characterized as a hydrocarbyl having a molecular weight in the range of about 400-1900; (c) about 0.5 to 10% by weight of a wax modifier selected from the group consisting of naphthenic oil and paraffinic oil; (d) about 0.5 to about 10% by weight of a corrosion inhibitor selected from the group consisting of a sulfonic acid salt or an amine soap of a fatty acid; (e) about 1 to 15% by weight of a processing aid comprising mineral spirits and ethylene glycol monopropyl ether; (f) About 0.5 to 15% by weight of a dual component anionic surfactant; and (g) about 30% to 80% by weight of water.
Claim 3
Dependent Claim
74 words
The composition of claim 1, wherein said slack wax has a boiling point at one atmosphere in the range of about 650°-950° F. (343°-510° C.), a melting point in the range of about 125°-130° F. (52°-54° C.), a number of carbon atoms per molecule in the range of about 18 to 35, and an acid number in milligrams of KOH per gram of said slack wax after oxidation in the range of about 20-40.
Claim 4
Dependent Claim
81 words
The coating composition of claim 1, wherein said paraffin wax before oxidation has a number of carbon atoms per molecule in the range of about 10-80 with a melting point in the range of about 10-50 milligrams of KOH per gram of said oxidized paraffin wax, and an atmospheric boiling point and melting point of said paraffin wax prior to oxidation, respectively, in the range of about 650°-950° F. (443°-510° C.), and in the range of about 125°-130° F. (52°-54° C.).
Claim 5
Dependent Claim
54 words
The coating composition of claim 1, wherein said petrolatum prior to oxidation has about 10 to 80 atoms of carbon per molecule, a melting point in the range of about 135°-150° F. (57°-66° C.), and an acid number after oxidation in the range of about 10-50 milligrams of KOH per gram of said petrolatum.
Claim 6
Dependent Claim
25 words
The coating composition of claim 1, wherein the naphthenic oil is a distillate having a viscosity in the range of 55-1200 SUS at 100°F. (38°C.).
Claim 7
Dependent Claim
22 words
The coating composition of claim 1, wherein the paraffinic oil is a distillate having viscosity of 100°F. (38° C.) of 55-1200 SUS.
Claim 8
Dependent Claim
38 words
The coating composition of claim 1, wherein said sulfonic acid salt has a cation selected from the group consisting of: Group Ia and IIa of the periodic table; and a molecular weight in the range of about 300-600.
Claim 9
Dependent Claim
31 words
The coating composition of claim 1, wherein mineral spirits and ethylene glycol monopropyl ether are present in a ratio by weight of one to the other of about 1 to 1.
Claim 10
Dependent Claim
57 words
The coating composition of claim 1, wherein said surfactant comprises an unsaturated fatty acid reacted with a fugitive amine wherein said unsaturated fatty acid is selected from the group consisting of: oleic acid, stearic acid isostearic acid and linoleic acid and wherein the fugitive amine is selected from the group consisting of: 2-amino-2-methyl-1-propanol, morpholine, diethanolamine, and triethanolamine.
Claim 11
Dependent Claim
26 words
The coating composition of claim 1, wherein said fatty acid is selected from the group consisting of: stearic acid, oleic acid, isostearic acid, and linoleic acid.
Claim 12
Dependent Claim
48 words
The composition of claim 1, wherein the surfactant is a dual component anionic surfactant to stabilize oil-in-water emulsions selected from the group consisting of an unsaturated fatty acid and a fugitive amine with sufficient amine to yield a pH in the range of about 8-10 for the composition.
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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) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |