US4080483A
Expired / Lapsed
US
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N-cyanosulfonamide resins and intermediates therefor and products thereof
Assignee: Novartis Corp
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Filing: 1977-05-02
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Granted: 1978-03-21
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Expires: 1997-05-02
Abstract
Abstract This invention provides compositions containing polysulfonamides which are prepared by the addition polymerization of bis-N-cyanosulfonamides. The resins are useful in coating, molding, laminating and casting applications.
Inventors
- 👤 Raymond J. Kray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:02
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/065; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0346; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10S428/902; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T442/00; Y10T442/20; Y10T442/2549; Y10T442/2566
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
A polymer of bis-N-cyanosulfonamide compound of the formula ##STR20## wherein R is a divalent aromatic, aliphatic, cycloaliphatic or heterocyclic radical; and each R' is independently a monovalent aromatic, aliphatic, cycloaliphatic or heterocyclic radical, with 0 to 10 moles per mole of sulfonamide of a biscyanamide having the formula NC--NH--R--NH--CN wherein R is a divalent aromatic, aliphatic, cycloaliphatic or heterocyclic radical.
Claim 2
Dependent Claim
60 words
A polymer of bis-N-cyanosulfonamide compound of the formula ##STR20## wherein R is a divalent aromatic, aliphatic, cycloaliphatic or heterocyclic radical; and each R' is independently a monovalent aromatic, aliphatic, cycloaliphatic or heterocyclic radical, with 0 to 10 moles per mole of sulfonamide of a biscyanamide having the formula NC--NH--R--NH--CN wherein R is a divalent aromatic, aliphatic, cycloaliphatic or heterocyclic radical.
Claim 3
Dependent Claim
19 words
A polymer of claim 1 wherein the N-cyanosulfonamide has the formula ##STR21## and the biscyanamide has the formula ##STR22##
Claim 4
Dependent Claim
19 words
A polymer of claim 1 wherein the N-cyanosulfonamide has the formula ##STR23## and the biscyanamide has the formula ##STR24##
Claim 5
Dependent Claim
14 words
A polymer of claim 1 wherein 1-10 moles of the bis cyanamide are used.
Claim 6
Dependent Claim
47 words
A polymer of claim 4 wherein R is a divalent aromatic radical selected from the group consisting of phenylene, bisphenylene, naphthylene and the foregoing radicals linked by divalent groups selected from the group consisting of oxa, carbonyl, lower alkylene, lower alkylidene, sulfonyl, thia, arylimino, amido and imido.
Claim 7
Dependent Claim
19 words
A polymer according to claim 1 formed by the polymerization of at least one N-cyanosulfonamide and no bis cyanamide.
Claim 8
Dependent Claim
19 words
A laminate of a polymer of claim 1 which consists essentially of a fibrous substrate impregnated with said polymer.
Claim 9
Dependent Claim
19 words
A laminate according to claim 7 wherein the fibrous substrate is fibers of glass, graphite, boron, or aromatic polyamide.
Claim 10
Dependent Claim
10 words
A molded part of a polymer according to claim 1.
Claim 11
Dependent Claim
12 words
A cast film or coating of a polymer according to claim 1.
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) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |