US4022946A
Expired / Lapsed
US
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Method for coating wet surfaces or surfaces immersed in water
Assignee: Pvo International Inc
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Filing: 1975-11-20
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Granted: 1977-05-10
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Expires: 1995-11-20
Abstract
Abstract A system comprising an epoxy resin and a particular type of amine curing agent makes possible a method of applying a coating to a wet or moist surface, even to a surface under water. These amine curing agents are substantially insoluble in water and are not water sensitive. The curing agents of this method are chosen from (1) amines of the formula: ##STR1## in which R is chosen from the group consisting of ether radicals of which one of the alkyl and alkylene radicals has at least eight carbon atoms or (2) a condensation product of a small proportion of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of carbon, hydrogen, oxygen and chlorine, and a larger proportion of a fatty amine of the formula: ##STR2## R 2 denoting a radical chosen from the group consisting of alkyl radicals having at least eight carbon atoms and ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms. Preferably the adduct of amine and epoxy resin is used as the curing agent for the main part of the epoxy resin. In one mode of procedure, the epoxy resin and the amine-resin adduct are each made into an aqueous emulsion; the emulsions, when mixed, are useful for application to a damp or wet surface.
Inventors
- 👤 Lowell O. Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:07
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5006; C08G59/5013; C08G59/182; C08G59/184; C09; C09D; C09D163/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
121 words
A method of coating a substrate with a wet or moist surface including a surface immersed under water, comprising the steps of: a. thoroughly mixing, to provide a non-aqueous coating composition: A. an epoxy resin consisting of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of carbon, hydrogen, oxygen and chlorine, and B. a stoichiometric amount of an amine curing agent which is substantially insoluble in water and not water-sensitive and chosen from the group consisting of 1. an amine of the formula ##STR8## where R 1 is chosen from the group consisting of ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, and 2.
Claim 2
Independent Claim
121 words
A method of coating a substrate with a wet or moist surface including a surface immersed under water, comprising the steps of: a. thoroughly mixing, to provide a non-aqueous coating composition: A. an epoxy resin consisting of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of carbon, hydrogen, oxygen and chlorine, and B. a stoichiometric amount of an amine curing agent which is substantially insoluble in water and not water-sensitive and chosen from the group consisting of 1. an amine of the formula ##STR8## where R 1 is chosen from the group consisting of ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, and 2.
Claim 3
Dependent Claim
99 words
a condensation product of a small proportion of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, and a large proportion of a fatty amine of the formula: ##STR9## where R 2 is chosen from the group consisting of alkyl radicals having at least eight carbon atoms and ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, b. applying said coating composition to said surface, and c. leaving alone said surface with the applied coating composition until it
Claim 4
Dependent Claim
99 words
a condensation product of a small proportion of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, and a large proportion of a fatty amine of the formula: ##STR9## where R 2 is chosen from the group consisting of alkyl radicals having at least eight carbon atoms and ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, b. applying said coating composition to said surface, and c. leaving alone said surface with the applied coating composition until it
Claim 5
Dependent Claim
40 words
cures. 2. The method of claim 1 wherein the curing takes a time between 1 and 15 hours at room temperature for the coating to start hardening and between 5 and 20 hours at room temperature to cure substantially fully.
Claim 6
Dependent Claim
56 words
The method of claim 1 in which the amine curing agent (B) consists of a condensation product of 3 parts by weight of an amine with said formula R 2 --NH--CH 2 --CH 2 --CH 2 --NH 2 , and 1 part by weight of epoxy resin, with an equivalent weight per epoxy-unit of about 180.
Claim 7
Dependent Claim
39 words
The method of claim 3 wherein the curing agent (B) is prepared by heating a mixture of the amine and epoxy resin for about one hour to about 100° C. and cooling the resulting product for about 15 hours.
Claim 8
Dependent Claim
41 words
The method of claim 1 wherein the amine curing agent (B) is a condensation product of 70 parts by weight of N-oleyl propylene diamine and 30 parts by weight of an epoxy resin with an average molecular weight of about 575.
Claim 9
Dependent Claim
37 words
The method of claim 5 wherein the curing agent (B) is prepared by heating a mixture of the amine and epoxy resin for two hours at 100° C., and then cooling the resulting product to room temperature.
Claim 10
Dependent Claim
46 words
The method of claim 1 wherein the amine curing agent (B) comprises a condensation product of 2 parts N-tall oil fatty acid derived propylene diamine wherein R is a mixture of C 18 H 33 and C 18 H 31 , and 1 part said polyepoxide.
Claim 11
Dependent Claim
63 words
The method of claim 1 wherein part (A) consists of: 80 parts of weight of a low-molecular weight epoxy resin containing 11% butyl glycidyl ether, and wherein part (B) consists of 180 parts by weight of 76parts of the reaction product of 70% N-oleyl propylene diamine and 30% polyepoxide, 76 parts calcium carbonate, 14 parts asbestos fiber, and 14 parts titanium dioxide pigment.
Claim 12
Dependent Claim
37 words
The method of claim 1 in which the polyepoxide of part (A) is mixed with a glycol before adding the amine curing agent (B) in order to obtain a faster curing process and a better brushing resistance.
Claim 13
Dependent Claim
12 words
The method of claim 9, in which the glycol is propylene glycol.
Claim 14
Dependent Claim
30 words
A method as in claim 1 wherein said amine curing agent is chosen from the group consisting of: N-tall oil fatty acid-propylene diamine, N-oleyl propylene diamine, and tridecylproplether propylene amine.
Claim 15
Independent Claim
87 words
A method of caulking wet or damp masonry, comprising blending 80 parts (A) comprising a low molecular weight polyepoxide having at least two vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, with 100 parts (B) consisting essentially of 500 parts of a reaction product between 70% N-oleyl propylene diamine and 30% said polyepoxide, 500 parts calcium carbonate, 90 parts asbestos fiber, 90 parts titanium dioxide pigment, and forcing the mixture before it cures into the areas to be caulked.
Claim 16
Independent Claim
87 words
A method of caulking wet or damp masonry, comprising blending 80 parts (A) comprising a low molecular weight polyepoxide having at least two vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, with 100 parts (B) consisting essentially of 500 parts of a reaction product between 70% N-oleyl propylene diamine and 30% said polyepoxide, 500 parts calcium carbonate, 90 parts asbestos fiber, 90 parts titanium dioxide pigment, and forcing the mixture before it cures into the areas to be caulked.
Claim 17
Independent Claim
121 words
A method of coating a structural material with a wet or moist surface including a surface immersed under water, comprising the steps of: a. thoroughly mixing, to provide a non-aqueous coating composition: A. an epoxy resin consisting of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of carbon, hydrogen, oxygen and chlorine, and B. a stoichiometric amount of an amine curing agent which is substantially insoluble in water and not water-sensitive and chosen from the group consisting of 1. an amine of the formula ##STR10## where R 1 is chosen from the group consisting of ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, and
Claim 18
Independent Claim
121 words
A method of coating a structural material with a wet or moist surface including a surface immersed under water, comprising the steps of: a. thoroughly mixing, to provide a non-aqueous coating composition: A. an epoxy resin consisting of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of carbon, hydrogen, oxygen and chlorine, and B. a stoichiometric amount of an amine curing agent which is substantially insoluble in water and not water-sensitive and chosen from the group consisting of 1. an amine of the formula ##STR10## where R 1 is chosen from the group consisting of ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, and
Claim 19
Dependent Claim
100 words
a condensation product of a small proportion of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, and a large proportion of a fatty amine of the formula: ##STR11## where R 2 is chosen from the group consisting of alkyl radicals having at least eight carbon atoms and ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, b. applying said coating composition to said surface, and c. leaving alone said surface with the applied coating composition until it cures.
Claim 20
Dependent Claim
100 words
a condensation product of a small proportion of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, and a large proportion of a fatty amine of the formula: ##STR11## where R 2 is chosen from the group consisting of alkyl radicals having at least eight carbon atoms and ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, b. applying said coating composition to said surface, and c. leaving alone said surface with the applied coating composition until it cures.
Claim 21
Independent Claim
138 words
A method of coating a structural material chosen from the group consisting of metal, wood, masonry, brick, porous ceramic building brick and concrete and having a wet or moist surface including a surface immersed under water, comprising the steps of: a. thoroughly mixing, to provide a non-aqueous coating composition: A. an epoxy resin consisting of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of carbon, hydrogen, oxygen and chlorine, and B. a stoichiometric amount of an amine curing agent which is substantially insoluble in water and not water-sensitive and chosen from the group consisting of 1. an amine of the formula ##STR12## where R 1 is chosen from the group consisting of ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, and
Claim 22
Independent Claim
138 words
A method of coating a structural material chosen from the group consisting of metal, wood, masonry, brick, porous ceramic building brick and concrete and having a wet or moist surface including a surface immersed under water, comprising the steps of: a. thoroughly mixing, to provide a non-aqueous coating composition: A. an epoxy resin consisting of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of carbon, hydrogen, oxygen and chlorine, and B. a stoichiometric amount of an amine curing agent which is substantially insoluble in water and not water-sensitive and chosen from the group consisting of 1. an amine of the formula ##STR12## where R 1 is chosen from the group consisting of ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, and
Claim 23
Dependent Claim
100 words
a condensation product of a small proportion of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, and a large proportion of a fatty amine of the formula: ##STR13## where R 2 is chosen from the group consisting of alkyl radicals having at least eight carbon atoms and ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, b. applying said coating composition to said surface, and c. leaving alone said surface with the applied coating composition until it cures.
Claim 24
Dependent Claim
100 words
a condensation product of a small proportion of a polyepoxide having a plurality of vic-epoxy groups and containing only members of the group consisting of C, H, O, and Cl, and a large proportion of a fatty amine of the formula: ##STR13## where R 2 is chosen from the group consisting of alkyl radicals having at least eight carbon atoms and ether radicals of which one of the alkyl or alkylene radicals has at least eight carbon atoms, b. applying said coating composition to said surface, and c. leaving alone said surface with the applied coating composition until it cures.
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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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |