US4126747A
Expired / Lapsed
US
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Carbamoyloxy acrylate compounds
Assignee: Union Carbide Corp
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Filing: 1976-12-28
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Granted: 1978-11-21
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Expires: 1996-12-28
Abstract
Abstract Unsaturated carbamoyloxy carboxylates having low color are produced by reacting hydroxyalkyl carbamates such as N-methyl 2-hydroxyethyl carbamate with acrylic or methacrylic acid in contact with a lower alkoxy substituted phenolic or alkylated alkoxyphenolic polymerization inhibitor at a critical low reaction temperature of 40° C. to 80° C. Novel unsaturated carbamoyloxy carboxylates are also disclosed.
Inventors
- 👤 Frank G. Cowherd, III
- 👤 Louis F. Theiling, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:01
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/205
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A carbamoyloxy acrylate compound of the formula wherein R 1 and R 2 are each hydrogen or alkyl of up to 10 carbon atoms; R 10 is hydrogen or methyl; and Y is a group of the formula ##STR16## wherein R 11 is alkyl of up to 10 carbon atoms or cycloalkyl of up to 10 carbon atoms and R 12 is alkyl of up to 10 carbon atoms, cycloalkyl of up to 10 carbon atoms, or aralkyl having up to 10 carbon atoms in the alkyl segment.
Claim 2
Dependent Claim
88 words
A carbamoyloxy acrylate compound of the formula wherein R 1 and R 2 are each hydrogen or alkyl of up to 10 carbon atoms; R 10 is hydrogen or methyl; and Y is a group of the formula ##STR16## wherein R 11 is alkyl of up to 10 carbon atoms or cycloalkyl of up to 10 carbon atoms and R 12 is alkyl of up to 10 carbon atoms, cycloalkyl of up to 10 carbon atoms, or aralkyl having up to 10 carbon atoms in the alkyl segment.
Claim 3
Dependent Claim
16 words
A carbamoyloxy acrylate compound as claimed in claim 1, wherein said compound has the structure ##STR17##
Claim 4
Dependent Claim
16 words
A carbamoyloxy acrylate compound as claimed in claim 3, wherein said compound has the structure ##STR18##
References Cited (Backward Citations)
US3674838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-20 | 1982-05-22 | 1982-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-20 | 1986-05-22 | 1986-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-20 | 1990-05-22 | 1990-11-21 | $7700.00 | Window Closed / Lapsed |