Patent US5179005A successfully refreshed from Google Patents.
US4775734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-nucleophilic acid salts of amines as cure accelerators
Assignee: Ashland LLC
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Filing: 1987-08-12
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Granted: 1988-10-04
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Expires: 2007-08-12
Abstract
Abstract A curable composition comprising a polyepoxide, an amine curing agent and a catalytic amount of a non-nucleophilic acid salt of an amine having the formula R(R')(R")NH + X - wherein R, R' and R" independently represent an alkyl group having from 1 to 20 carbon atoms, an alkaryl group having from 7 to 20 carbon atoms or an oxyalkylene group having from 2 to 50 carbon atoms and wherein R' and R" independently also may represent hydrogen and R may also represent the formula [--Y--(R')(R")NH + X - ] n wherein R' and R" have the foregoing designations, Y represents an alkylene or alkylene ether group having from 2 to 50 carbon atoms and n represents an integer of from 1 to 5 is described.
Inventors
- 👤 Anil B. Goel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/686; C08G59/72
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
86 words
A curable composition comprising a polyepoxide, an amine curing agent and a catalytic amount of a member selected from the group consisting of the tetrafluoroborate salt of aminoethylpiperazine, the tetrafluoroborate salt of diethylene triamine, the tetrafluoroborate salt of ethylene diamine, the tetrafluoroborate salt of triethylene tetramine, the tetrafluoroborate salt of an amido amine obtained by amidification of linoleic acid with ethylene diamine, the tetrafluoroborate salt of morpholine, the hexafluorophosphate salt of aminoethylpiperazine, the hexafluorophosphate salt of poly(oxy propylene) triamine and the hexafluorophospate salt of diethyl amine.
Claim 2
Dependent Claim
86 words
A curable composition comprising a polyepoxide, an amine curing agent and a catalytic amount of a member selected from the group consisting of the tetrafluoroborate salt of aminoethylpiperazine, the tetrafluoroborate salt of diethylene triamine, the tetrafluoroborate salt of ethylene diamine, the tetrafluoroborate salt of triethylene tetramine, the tetrafluoroborate salt of an amido amine obtained by amidification of linoleic acid with ethylene diamine, the tetrafluoroborate salt of morpholine, the hexafluorophosphate salt of aminoethylpiperazine, the hexafluorophosphate salt of poly(oxy propylene) triamine and the hexafluorophospate salt of diethyl amine.
Claim 3
Dependent Claim
74 words
The composition of claim 1 wherein the amine curing agent is selected from the group consisting of butylamine, dodecylamines, cyclohexyl amine, ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, propylene diamine, dipropylene triamine, cyclohexane diamine, xylene diamine, hexamethylene diamine, triethylamine, tripropylamine, triethylene diamine, tris(amino ethyl) amine, tris(aminopropyl) amine, aminoethylpiperazine, bis(amino propyl) piperazine, piperidine, N-alkyl piperidines, morpholine, N-alkyl morpholine, dimer acid diamine, imidazoles, imidazolines and poly(oxy alkylene) polyamines and amidoamines from these and carboxylic acids.
Claim 4
Dependent Claim
20 words
The composition of claim 2 wherein the polyepoxide is a compound containing more than one group of the formula ##STR2##
Claim 5
Dependent Claim
15 words
The composition of claim 3 wherein the polyepoxide is the liquid diglycidyl ether of Bisphenol-A.
Claim 6
Dependent Claim
23 words
The composition of claim 4 wherein the amine curing agent is aminoethylpiperazine and the non-nucleophilic acid salt is the tetrafluoroborate salt of aminoethylpiperazine.
Claim 7
Dependent Claim
25 words
The composition of claim 4 wherein the amine curing agent is diethylene triamine and the non-nucleophilic acid salt is the tetrafluoroborate salt of diethylene triamine.
Claim 8
Dependent Claim
25 words
The composition of claim 4 wherein the amine curing agent is thriethylene tetramine and the non-nucleophilic acid salt is the tetrafluoroborate salt of ethylene diamine.
Claim 9
Dependent Claim
25 words
The composition of claim 4 wherein the amine curing agent is triethylene tetramine and the non-nucleophilic acid salt is the tetrafluoroborate salt of triethylene tetramine.
Claim 10
Dependent Claim
37 words
The composition of claim 4 wherein the amine curing agent is an amido amine obtained by amidification of linoleic acid with ethylene diamine and the non-nucleophilic acid salt is the tetrafluoroborate salt of the said amido amine.
Claim 11
Dependent Claim
23 words
The composition of claim 4 wherein the amine curing agent is aminoethylpiperazine and the non-nucleophilic acid salt is the tetrafluoroborate salt of morpholine.
Claim 12
Dependent Claim
23 words
The composition of claim 4 wherein the amine curing agent is aminoethylpiperazine and the non-nucleophilic acid salt is the hexafluorophosphate salt of aminoethylpiperazine.
Claim 13
Dependent Claim
27 words
The composition of claim 4 wherein the amine curing agent is poly(oxy propylene) triamine and the non-nucleophilic acid salt is the hexafluorophosphate salt of poly(oxy propylene) triamine.
Claim 14
Dependent Claim
25 words
The composition of claim 4 wherein the amine curing agent is diethylene triamine and the non-nucleophilic acid salt is the hexafluorophosphate salt of diethyl amine.
Claim 15
Dependent Claim
43 words
The composition of claim 3 wherein the polyepoxide is a mixture of the liquid diglycidyl ether of Bisphenol-A and the diglycidyl ether of poly(oxy propylene) glycol. The amine curing agent is aminoethylpiperazine and the non-nucleophilic acid salt is the tetrafluoroborate salt of aminoethylpiperazine.
References Cited (Backward Citations)
US3720634A
Cited
US4092296A
Cited
US3909480A
Cited
US4000115A
Cited
US4396754A
Cited
US4668758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |