Patent US3728387A successfully refreshed from Google Patents.
US3728387A
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Acrylamide of methacrylamide monomer with n-substituted amininmide residues
Assignee: Ashland LLC
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Filing: 1972-03-17
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Granted: 1973-04-17
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Expires: 1992-03-17
Abstract
Abstract N-substituted acryl- and methacrylamides are disclosed which compounds as a class are structurally characterized in having an amido substituent in the form of a methylene or polymethylene radical terminally containing a quaternary ammonium acylimine group. These vinyl aminimide monomers can be homo- or copolymerized to provide either linear thermosetting polymers or linear polymers from whence thermoset cross-links can be derived, all having recognized utility in a variety of coating applications.
Inventors
- 👤 R Freis
- 👤 B Culbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:04
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
11 words
A compound in accordance with claim 1 wherein R is H.
Claim 2
Dependent Claim
13 words
A compound in accordance with claim 2 wherein n is 1 or 2.
Claim 3
Dependent Claim
15 words
A compound in accordance with claim 3 wherein R2, R3 and R4 represent lower alkyl.
Claim 4
Dependent Claim
20 words
A compound in accordance with claim 3 wherein R2 and R3 each represents CH3 and R4 represents hydroxyl lower alkyl.
Claim 5
Dependent Claim
12 words
A compound in accordance with claim 5 wherein R4 represents hydroxy propyl.
Claim 6
Dependent Claim
11 words
A compound in accordance wit claim 1 wherein R is CH3.
Claim 7
Dependent Claim
13 words
A compound in accordance with claim 7 wherein n is 1 or 2.
Claim 8
Dependent Claim
15 words
A compound in accordance with claim 8 wherein R2, R3 and R4 represent lower alkyl.
Claim 9
Dependent Claim
20 words
A compound in accordance with claim 9 wherein R2 and R3 each represents CH3 and R4 represents hydroxy lower alkyl.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |