US4179552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for accelerated cure of epoxy resins
Assignee: Huntsman Corp
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Filing: 1978-03-27
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Granted: 1979-12-18
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Expires: 1998-03-27
Abstract
Abstract A process for the accelerated cure of an epoxy resin is disclosed. The resulting epoxy resin may be used in protective coatings, adhesives, seamless and terrazo flooring and caulking and sealing compositions. The resulting resin is also useful, for example, in casting, potting, in escapulating, grouting and patching. The process involves mixing an epoxy resin of the polyhydric phenol, polyglycidyl ether type with a curing agent comprising the reaction product of an epoxy resin with an excess of an aminoalkylene derivative of a polyoxyalkylenepolyamine.
Inventors
- 👤 Harold G. Waddill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:53
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184; C08L; C08L63/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
38 words
An epoxy resin composition comprising: a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule, and a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylenepolyamine.
Claim 2
Dependent Claim
38 words
An epoxy resin composition comprising: a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule, and a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylenepolyamine.
Claim 3
Dependent Claim
20 words
A composition as in claim 1 also containing a diureide of a polyoxyalkylenepolyamine of from 2000 to 3000 molecular weight.
Claim 4
Dependent Claim
15 words
A composition as in claim 1 also containing a composition effective in accelerating the cure.
Claim 5
Dependent Claim
72 words
A composition of claim 1 wherein the amino propyl derivative is comprised of one or more compounds having the formulae: H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 HNCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 (I) where x=2 to 40 and ##STR7## where R is a lower alkyl and x+y+z=3 to 40 and H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 HNCHCH.sub.2 (OCHCH.sub.2).sub.x (OCH.sub.2 CH.sub.2).sub.y (OCH.sub.2 CH).sub.z NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 (II) where x+z=2 to 10 and y=1 to 50.
Claim 6
Dependent Claim
57 words
An epoxy resin composition comprising: a vincinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule, and a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylene polyamine of the formula: H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 HNCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 where x=2 to 40.
Claim 7
Dependent Claim
57 words
An epoxy resin composition comprising: a vincinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule, and a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylene polyamine of the formula: H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 HNCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 where x=2 to 40.
Claim 8
Dependent Claim
13 words
A composition of claim 5 wherein x is about 2.6, 5.6 or 33.1.
Claim 9
Dependent Claim
12 words
A composition of claim 5 wherein x is about 2.6 or 5.6.
Claim 10
Dependent Claim
113 words
The composition of claim 2 wherein said diureide is of the formula ##STR8## wherein R is hydrogen; or, a branched or straight chain alkyl radical of from 1 to about 10 carbon atoms, or a monocyclic aryl, alkaryl or aralkyl having from 6 to about 12 carbon atoms; or, are branched or straight chain alkenyl or alkadienyl radical of from 2 to about 10 carbon atoms; X is hydrogen, a methyl radical or an ethyl radical; Z is a hydrocarbon alkylene radical having 2 to 5 carbon atoms and n is a number selected such that the molecule of the above formula has a molecular weight of from about 2000 to about 3000.
Claim 11
Dependent Claim
33 words
The composition of claim 8 wherein R is hydrogen or a lower alkyl; X is a methyl radical; Z is a 1,2-propaylene radical; and n is an average number from 16 to 19.
Claim 12
Dependent Claim
9 words
The composition of claim 8 wherein R is hydrogen.
Claim 13
Dependent Claim
23 words
The composition of claim 9 wherein R is a lower alkyl radical selected from the group consisting of methyl, ethyl, n-propyl and n-butyl.
Claim 14
Independent Claim
55 words
A method for increasing the adhesive strength of a cured epoxy resin composition having an average of at least 1.8 reactive 1,2-epoxy groups per molecule comprising the steps of: adding to said epoxy resin an effective amount of a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylenepolyamine.
Claim 15
Independent Claim
55 words
A method for increasing the adhesive strength of a cured epoxy resin composition having an average of at least 1.8 reactive 1,2-epoxy groups per molecule comprising the steps of: adding to said epoxy resin an effective amount of a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylenepolyamine.
Claim 16
Dependent Claim
23 words
A method as in claim 12 wherein there is also added a diureide of a polyoxyalkylenepolyamine of from 2000 to 3000 molecular weight.
Claim 17
Dependent Claim
18 words
A method as in claim 1 wherein there is also added a composition effective in accelerating the cure.
Claim 18
Dependent Claim
49 words
A method as in claim 12 wherein the amino propyl derivative is comprised of one or more compounds having the formula: H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 HNCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 (I) where x=2 to 40 and ##STR9## and ##STR10## where x+y=2 to 10 and y=1 to 50.
Claim 19
Independent Claim
74 words
A method for increasing the adhesive strength of a cured epoxy resin composition having an average of at least 1.8 reactive 1,2-epoxy groups per molecule comprising the step of: adding to said epoxy resin an effective amount of a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylene polyamine of the formula: H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 HNCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 where x=2 to 40.
Claim 20
Independent Claim
74 words
A method for increasing the adhesive strength of a cured epoxy resin composition having an average of at least 1.8 reactive 1,2-epoxy groups per molecule comprising the step of: adding to said epoxy resin an effective amount of a reaction product of an epoxy resin with an excess of an aminopropyl derivative of a polyoxyalkylene polyamine of the formula: H.sub.2 NCH.sub.2 CH.sub.2 CH.sub.2 HNCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 where x=2 to 40.
Claim 21
Dependent Claim
14 words
A method as in claim 16 wherein x is about 2.6, 5.6 or 33.1.
Claim 22
Dependent Claim
13 words
A method as in claim 16 wherein x is about 2.6 or 5.6.
Claim 23
Dependent Claim
113 words
The method of claim 13 wherein said diureide is of the formula ##STR11## wherein R is hydrogen; or, a branched or straight chain alkyl radical of from 1 to about 10 carbon atoms, or a monocyclic aryl, alkaryl or aralkyl having from 6 to about 12 carbon atoms; or, are branched or straight chain alkenyl or alkadienyl radical of from 2 to about 10 carbon atoms; X is hydrogen, a methyl radical or an ethyl radical; Z is a hydrocarbon alkylene radical having 2 to 5 carbon atoms and n is a number selected such that the molecule of the above formula has a molecular weight of from about 2000 to about 3000.
Claim 24
Dependent Claim
33 words
The method of claim 19 wherein R is hydrogen or a lower alkyl; X is a methyl radical; Z is a 1,2-propylene radical; and n is an average number from 16 to 19.
Claim 25
Dependent Claim
9 words
The method of claim 20 wherein R is hydrogen.
Claim 26
Dependent Claim
23 words
The method of claim 20 wherein R is a lower alkyl radical selected from the group consisting of methyl, ethyl, n-propyl and n-butyl.
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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |