US4020123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamine coating compositions
Assignee: Celanese Corp
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Filing: 1974-12-11
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Granted: 1977-04-26
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Expires: 1994-12-11
Abstract
Abstract Thermosetting resin compositions are provided which cure rapidly and exothermically at ambient temperatures. Accelerated crosslinking is accomplished by the reaction of polyisopropenyl ester with amine-containing polymeric compositions.
Inventors
- 👤 Louis E. Trapasso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:14
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/56; C08G59/58; C08L; C08L79/00; C08L79/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
40 words
A coating composition curable at ambient temperatures comprising a mixture of thermoplastic resin containing a plurality of groups selected from primary and secondary amino groups, and an organic polyester derivative which contains between 2 and about 5 isopropenyl ester groups.
Claim 2
Dependent Claim
40 words
A coating composition curable at ambient temperatures comprising a mixture of thermoplastic resin containing a plurality of groups selected from primary and secondary amino groups, and an organic polyester derivative which contains between 2 and about 5 isopropenyl ester groups.
Claim 3
Dependent Claim
56 words
A process for producing a low temperature curable composition which comprises admixing a thermoplastic resin containing a plurality of groups selected from primary and secondary amino groups together with an organic polyester derivative which contains between 2 and about 5 isopropenyl ester groups, wherein between about 0.2 and 1 isopropenyl ester group is provided per amino-hydrogen.
Claim 4
Dependent Claim
56 words
A process for producing a low temperature curable composition which comprises admixing a thermoplastic resin containing a plurality of groups selected from primary and secondary amino groups together with an organic polyester derivative which contains between 2 and about 5 isopropenyl ester groups, wherein between about 0.2 and 1 isopropenyl ester group is provided per amino-hydrogen.
Claim 5
Dependent Claim
17 words
A process in accordance with claim 2 wherein the curable composition is cast as a surface coating.
Claim 6
Dependent Claim
17 words
A crosslinked resin composition which is a resultant product of a process in accordance with claim 2.
Claim 7
Dependent Claim
14 words
A process in accordance with claim 2 wherein the polyester derivative is diisopropenyl adipate.
Claim 8
Dependent Claim
18 words
A process in accordance with claim 2 wherein the polyester derivative is diisopropenyl C 36 -dimer acid ester.
Claim 9
Independent Claim
27 words
A method for protecting a surface with a crosslinked resinous coating which comprises admixing polyethyleneimine polyamine with a polyisopropenyl ester and casting the admixture on said surface.
Claim 10
Independent Claim
27 words
A method for protecting a surface with a crosslinked resinous coating which comprises admixing polyethyleneimine polyamine with a polyisopropenyl ester and casting the admixture on said surface.
Claim 11
Dependent Claim
20 words
A method in accordance with claim 7 wherein the crosslinking reaction between polyethyleneimine and polyisopropenyl ester occurs at ambient temperatures.
Claim 12
Dependent Claim
19 words
A method in accordance with claim 2 wherein the thermoplastic resin is an amine-modified thermoplastic glycidyl ether epoxy resin.
Claim 13
Independent Claim
29 words
A method for protecting a surface with a crosslinked resinous coating which comprises admixing thermoplastic aromatic amine-aldehyde condensate with a polyisopropenyl ester and casting the admixture on said surface.
Claim 14
Independent Claim
29 words
A method for protecting a surface with a crosslinked resinous coating which comprises admixing thermoplastic aromatic amine-aldehyde condensate with a polyisopropenyl ester and casting the admixture on said surface.
Claim 15
Independent Claim
29 words
A method for protecting a surface with a crosslinked resinous coating which comprises admixing a thermoplastic amine-modified polyanhydride with a polyisopropenyl ester and casting the admixture on said surface.
Claim 16
Independent Claim
29 words
A method for protecting a surface with a crosslinked resinous coating which comprises admixing a thermoplastic amine-modified polyanhydride with a polyisopropenyl ester and casting the admixture on said surface.
References Cited (Backward Citations)
US3538184A
Cited
US3736289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |