US3668183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyenamines
Assignee: Union Carbide Corp
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Filing: 1970-11-03
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Granted: 1972-06-06
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Expires: 1990-11-03
Abstract
Abstract Polyenamine resins useful as adhesives and in coating applications are produced from the reaction of polyacetoacetates or polyacetoacetamides with blocked polyamines. The blocked polyamines are ketimines or enamines obtained by the reaction of an amine or amide with either a ketone or an aldimine obtained by the reaction of an amine or amide with an aldehyde.
Inventors
- 👤 Kenneth Look Hoy
- 👤 Charles Leonard Milligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:11
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/028
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
74 words
The method as claimed in claim 1, wherein the polyenamine contains units of the formula: wherein R'' is alkylene, cycloalkylene, arylene, arylalkylene, cycloalkylalkylene, alkylcycloalkylene, alkylarylene or the ethers thereof of from one to 50 carbon atoms, R'''' is hydrogen or alkyl of from one to six carbon atoms and n has a value of from 1 to 3, R represents the base residue of the polyacetoacetate or polyacetoacetamide and X is oxygen or nitrogen.
Claim 2
Dependent Claim
17 words
The method as claimed in claim 1, wherein acetone is added as a solvent in step (ii).
Claim 3
Dependent Claim
25 words
The method as claimed in claim 1, wherein the polyamine is bis(6-aminohexyl)ether, the carbonyl-containing compound is methyl ethyl ketone and the polyacetoacetate is trimethylolpropane trisacetoacetate.
Claim 4
Dependent Claim
26 words
The method as claimed in claim 1, wherein the polyamine is 1, 6-hexanediamine, the carbonyl-containing compound is methyl etHyl ketone and the polyacetoacetate is trimethylolpropane trisacetoacetate.
Claim 5
Dependent Claim
39 words
The method as claimed in claim 1, wherein the polyamine is 1, 6-hexanediamine, the carbonyl-containing compound is methyl ethyl ketone and the polyacetoacetate is the polyester triol of trimethylolpropane and epsilon-caprolacetone having an average molecular weight of about 540.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |