Patent US4247474A successfully refreshed from Google Patents.
US4247474A
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Nitrile imines
Assignee: Hercules LLC
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Filing: 1976-01-02
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Granted: 1981-01-27
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Expires: 1996-01-02
Abstract
Abstract Disclosed are polyfunctional nitrile imines having the formula selected from R----C.tbd.N.sup.⊕ --N.sup.⊖ --R') x and R----N.sup.⊖ --N.sup.⊕ .tbd.C--R") x where R is an alkylene, cycloalkylene, arylene, alkyl-arylene, arylene-dialkylene, alkylene-diarylene or cycloalkylene-dialkylene radical; R' is a hydrogen, alkyl, cycloalkyl, aryl, alkaryl, or aralkyl radical; R" is an alkyl, cycloalkyl, aryl, alkaryl or aralkyl radical and x is greater than 1; and their hydrogen chloride salts having the formula selected from ##STR1## where R, R', R" and x are as defined above.
Inventors
- 👤 David S. Breslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:17
CPC Classifications
C; C07; C07C; C07C251/00; C07C251/72; C07C259/00; C07C259/02; C07C291/00; C07C291/02; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F8/00; C08F8/30; C08G; C08G63/00; C08G63/68; C08G63/685; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/29; C08K5/30; C08K5/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
238 words
A compound selected from the group consisting of a polyfunctional nitrile imine having the formula selected from the group consisting of R--C.tbd.N.sup.⊕ --N.sup.⊖ --R').sub.x and R--N.sup.⊖ --N.sup.⊕ .tbd.C--R").sub.x wherein R is a radical selected from the group consisting of alkylene radicals selected from methylene, dimethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, octamethylene, dodecamethylene, and octadecamethylene radicals; cycloalkylene radicals selected from cyclobutylene, cyclopentylene, cyclohexylene, and cyclooctylene; arylene radicals selected from o-phenylene, m-phenylene, p-phenylene, biphenylene, and naphthylene; arylene-dialkylene radicals selected from o-xylylene, m-xylylene, p-xylylene, o-phenylene-diethylene, m-phenylene-diethylene and p-phenylene-diethylene; alkylene-diarylene radicals selected from methylene bis(o-phenyl), methylene bis(m-phenyl), methylene bis(p-phenyl), dimethylene bis(o-phenyl), dimethylene bis(m-phenyl) and dimethylene bis(p-phenyl); and cycloalkylene-dialkylene radicals selected from 1,2-cyclohexane-dimethylene, 1,3-cyclohexane-dimethylene, 1,4-cyclohexane-dimethylene, 1,2-dyclopentane-dimethylene and 1,3-cyclopentane-dimethylene; R' is a radical selected from the group consisting of hydrogen, C 1 -C 20 alkyl radicals, C 5 -C 12 cycloalkyl radicals, aryl radicals having 1 to 3 rings, alkaryl radicals having C 1 -C 20 alkyl groups and 1 to 3 rings and aralkyl radicals having 1 to 3 rings and C 1 -C 20 alkyl groups; R" is a radical selected from the group consisting of C 1 -C 20 alkyl radicals, C 5 -C 12 cycloalkyl radicals, aryl radicals having 1 to 3 rings, alkaryl radicals having C 1 -C 20 alkyl groups and 1 to 3 rings and aralkyl radicals having 1 to 3 rings and C 1 -C 20 alkyl groups; and x is an integer from 2 to 10.
Claim 2
Dependent Claim
238 words
A compound selected from the group consisting of a polyfunctional nitrile imine having the formula selected from the group consisting of R--C.tbd.N.sup.⊕ --N.sup.⊖ --R').sub.x and R--N.sup.⊖ --N.sup.⊕ .tbd.C--R").sub.x wherein R is a radical selected from the group consisting of alkylene radicals selected from methylene, dimethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, octamethylene, dodecamethylene, and octadecamethylene radicals; cycloalkylene radicals selected from cyclobutylene, cyclopentylene, cyclohexylene, and cyclooctylene; arylene radicals selected from o-phenylene, m-phenylene, p-phenylene, biphenylene, and naphthylene; arylene-dialkylene radicals selected from o-xylylene, m-xylylene, p-xylylene, o-phenylene-diethylene, m-phenylene-diethylene and p-phenylene-diethylene; alkylene-diarylene radicals selected from methylene bis(o-phenyl), methylene bis(m-phenyl), methylene bis(p-phenyl), dimethylene bis(o-phenyl), dimethylene bis(m-phenyl) and dimethylene bis(p-phenyl); and cycloalkylene-dialkylene radicals selected from 1,2-cyclohexane-dimethylene, 1,3-cyclohexane-dimethylene, 1,4-cyclohexane-dimethylene, 1,2-dyclopentane-dimethylene and 1,3-cyclopentane-dimethylene; R' is a radical selected from the group consisting of hydrogen, C 1 -C 20 alkyl radicals, C 5 -C 12 cycloalkyl radicals, aryl radicals having 1 to 3 rings, alkaryl radicals having C 1 -C 20 alkyl groups and 1 to 3 rings and aralkyl radicals having 1 to 3 rings and C 1 -C 20 alkyl groups; R" is a radical selected from the group consisting of C 1 -C 20 alkyl radicals, C 5 -C 12 cycloalkyl radicals, aryl radicals having 1 to 3 rings, alkaryl radicals having C 1 -C 20 alkyl groups and 1 to 3 rings and aralkyl radicals having 1 to 3 rings and C 1 -C 20 alkyl groups; and x is an integer from 2 to 10.
Claim 3
Dependent Claim
16 words
The compound of claim 1 wherein the polyfunctional nitrile imine has the formula R--C.tbd.N.sup.⊕ --N.sup.⊖ --R').sub.x
Claim 4
Dependent Claim
17 words
The compound of claim 2 wherein R is an arylene radical and R' is an aryl radical.
References Cited (Backward Citations)
US3390204A
Cited
US3390133A
Cited
US3418285A
Cited
US3448063A
Cited
US3504017A
Cited
US3670023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |