US5017676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetoacetoxyethyl methacrylate in the cure of epoxy resins
Assignee: Huntsman Corp
•
Filing: 1989-12-18
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Granted: 1991-05-21
•
Expires: 2009-12-18
Abstract
Abstract A method for curing a 1,2-epoxy resin by mixing the resin with an effective amount of an amine curing agent under epoxy resin curing conditions and accelerating the cure with acetoacetoxyethyl methacrylate (AAEM).
Inventors
- 👤 Michael Cuscurida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:42
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F220/28; C08F220/283; C08F283/00; C08F283/10; C08G59/40; C08G59/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
30 words
A composition comprising an epoxy resin, an amine curing agent and an amount of acetoacetoxyethyl methacrylate effective for accelerating the cure of the epoxy resin to a hand, stiff product.
Claim 2
Dependent Claim
30 words
A composition comprising an epoxy resin, an amine curing agent and an amount of acetoacetoxyethyl methacrylate effective for accelerating the cure of the epoxy resin to a hand, stiff product.
Claim 3
Dependent Claim
13 words
A composition as in claim 1 wherein the amine curing agent is triethyleneglycoldiamine.
Claim 4
Dependent Claim
13 words
A composition as in claim 1 wherein the amine curing agent is tetraethyleneglycoldiamine.
Claim 5
Dependent Claim
13 words
A composition as in claim 1 wherein the amine curing agent is polyoxypropylenediamine.
Claim 6
Independent Claim
64 words
A method for curing a 1,2 epoxy resin wherein an effective amount of an amine curing agent is intimately mixed with a 1,2 epoxy resin under epoxy resin curing conditions to obtain a hand, stiff product, the improvement which comprises using as an accelerator an amount of acetoacetoxyethyl methacrylate ranging from about 2 weight percent to 20 weight percent based on the entire formulation.
Claim 7
Independent Claim
64 words
A method for curing a 1,2 epoxy resin wherein an effective amount of an amine curing agent is intimately mixed with a 1,2 epoxy resin under epoxy resin curing conditions to obtain a hand, stiff product, the improvement which comprises using as an accelerator an amount of acetoacetoxyethyl methacrylate ranging from about 2 weight percent to 20 weight percent based on the entire formulation.
Claim 8
Independent Claim
65 words
A method for curing a 1,2 epoxy resin wherein an effective amount of an amine curing agent is intimately mixed with a 1,2 epoxy resin under epoxy resin curing conditions to obtain a hand, stiff product, the improvement which comprises using as an accelerator an amount of acetoacetoxyethyl methacrylate ranging from about 4 weight percent to about 8.2 weight percent based on the entire formulation.
Claim 9
Independent Claim
65 words
A method for curing a 1,2 epoxy resin wherein an effective amount of an amine curing agent is intimately mixed with a 1,2 epoxy resin under epoxy resin curing conditions to obtain a hand, stiff product, the improvement which comprises using as an accelerator an amount of acetoacetoxyethyl methacrylate ranging from about 4 weight percent to about 8.2 weight percent based on the entire formulation.
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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) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |