Patent US4609686A successfully refreshed from Google Patents.
US4609686A
Expired / Lapsed
US
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100 percent solids epoxy, nitrile coating compositions and method of making same
Assignee: Standard Oil Co
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Filing: 1985-04-19
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Granted: 1986-09-02
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Expires: 2005-04-19
Abstract
Abstract 100 percent solids epoxy, nitrile coating compositions comprising: (a) epoxy resins, and (b) epoxy-nitrile monomers which are useful for protective coatings. The invention further includes a process for producing the 100 percent solids epoxy nitrile coating compositions comprising: (1) forming a mixture of the epoxy resins with the epoxy nitrile monomers and curing agents, (2) applying the mixture to a substrate to form a coating, and (3) curing the coating so that in situ copolymerization of the epoxy resin and epoxy-nitrile monomer results in a multifunctional epoxy nitrile coating system.
Inventors
- 👤 Paul Giordano, Jr.
- 👤 Richard C. Smierciak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:25
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/10; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/18; C08G59/68
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
50 words
A process for preparing an epoxy nitrile coating comprising: (a) forming a mixture of an epoxy resin with an epoxy-nitrile monomer and a curing agent, (b) applying the mixture to a substrate to form a coating, and (c) effecting cure of the coating to form the epoxy nitrile coating composition.
Claim 2
Dependent Claim
50 words
A process for preparing an epoxy nitrile coating comprising: (a) forming a mixture of an epoxy resin with an epoxy-nitrile monomer and a curing agent, (b) applying the mixture to a substrate to form a coating, and (c) effecting cure of the coating to form the epoxy nitrile coating composition.
Claim 3
Dependent Claim
22 words
The process of claim 1 wherein said coating composition is applied at a thickness from about 0.1 mil to about 20 mil.
Claim 4
Dependent Claim
22 words
The process of claim 2 wherein said coating composition is applied at a thickness from about 3 mil to about 15 mil.
Claim 5
Dependent Claim
20 words
The process of claim 1 wherein said curing agent is catalytic and the cure is effected by heating the mixture.
Claim 6
Dependent Claim
15 words
The process of claim 4 wherein said heating is a temperature of about 85° C.
Claim 7
Dependent Claim
24 words
The process of claim 4 wherein said catalytic curing agents are selected from the group consisting of benzyldimethylamine, boron trifluoride monoethylamine and combinations thereof.
Claim 8
Dependent Claim
23 words
The process of claim 1 wherein said curing agent is stoichiometric and the cure occurs slowly at room temperature for about 1 week.
Claim 9
Dependent Claim
31 words
The process of claim 7 wherein said stoichiometric curing agents are selected from the group consisting of polysulfides, aliphatic amines, polyamides, amidoamines, aromatic amines, anhydrides, melamine-formaldehydes, urea-formaldehydes, phenol-formaldehydes and combinations thereof.
Claim 10
Dependent Claim
24 words
The process of claim 7 wherein said stoichiometric curing agents are selected from the consisting of cyclohexyl amine, aniline, proprionic anhydride and mixtures thereof.
Claim 11
Dependent Claim
23 words
The process of claim 1 wherein said curing agent is a photoinitiator and the cure is effected by subjecting the mixture to radiation.
Claim 12
Dependent Claim
19 words
The process of claim 10 wherein said irradiation comprises wavelengths of the spectrum from about 1,OOOA to about 6,000A.
Claim 13
Dependent Claim
29 words
The process of claim 10 wherein said photoinitiated curing agents are selected from the group consisting of benzophenone, triaryl sulfonium salts, benzoin ethers, substituted acetophene, benzils and combinations thereof.
Claim 14
Dependent Claim
18 words
The process of claim 1 wherein said epoxy nitrile coating is produced in the absence of a solvent.
Claim 15
Dependent Claim
19 words
The process of claim 1 wherein said coating comprises from about 95 percent to about 5 percent epoxy resin.
Claim 16
Dependent Claim
21 words
The process of claim 1 wherein said coating comprises from about 85 percent to about 35 percent of the epoxy resin.
Claim 17
Dependent Claim
20 words
The process of claim 1 wherein said coating comprises from about 80 percent to about 50 percent of epoxy resin.
Claim 18
Dependent Claim
45 words
The process of claim 1 wherein said epoxy resin is selected from the group consisting of diglycidyl ethers of bisphenol A, diglycidyl ethers of novolak epoxy resins, esters of epoxidized cyclic alcohols, esters of epoxidized cycloalkanecarboxylic acids, halogenated epoxides, bisphenol F epoxides and combinations thereof.
Claim 19
Dependent Claim
19 words
The process of claim 1 wherein said coating comprises about 5 percent to about 95 percent epoxy nitrile monomer.
Claim 20
Dependent Claim
20 words
The process of claim 1 wherein said coating comprises from about 15 percent to about 65 percent epoxy nitrile monomer.
Claim 21
Dependent Claim
20 words
The process of claim 1 wherein said coating comprises from about 20 percent to about 50 percent epoxy nitrile monomer.
Claim 22
Dependent Claim
25 words
The process of claim 1 wherein said epoxy-nitrile monomer is selected from the group consisting of B-cyanoethyl glycidyl ether, B-cyanobutyl glycidyl ether and mixtures thereof.
Claim 23
Dependent Claim
13 words
The process of claim 1 wherein said epoxy-nitrile monomer is B-cyanoethyl glycidyl ether.
Claim 24
Dependent Claim
57 words
A process for preparing solvent free epoxy nitrile coating comprising: (a) forming a mixture of an epoxy resin with an epoxy-nitrile monomer and a curing agent, (b) applying the mixture, in the absence of a solvent, to a substrate to form a coating, and (c) effecting cure of the coating to form the epoxy nitrile coating composition.
Claim 25
Dependent Claim
57 words
A process for preparing solvent free epoxy nitrile coating comprising: (a) forming a mixture of an epoxy resin with an epoxy-nitrile monomer and a curing agent, (b) applying the mixture, in the absence of a solvent, to a substrate to form a coating, and (c) effecting cure of the coating to form the epoxy nitrile coating composition.
Claim 26
Dependent Claim
26 words
A process for preparing a solvent free epoxy nitrile coating comprising an in situ copolymerization of an epoxy resin, an epoxy-nitrile monomer and a curing agent.
Claim 27
Dependent Claim
26 words
A process for preparing a solvent free epoxy nitrile coating comprising an in situ copolymerization of an epoxy resin, an epoxy-nitrile monomer and a curing agent.
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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) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |