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US4258171A
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Polyphosphazene polymers containing substituted alkyl/cycloalkyl substituents
Assignee: Bridgestone Firestone Inc
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Filing: 1979-09-04
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Granted: 1981-03-24
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Expires: 1999-09-04
Abstract
Abstract Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: <IMAGE> wherein X and X' are the same or different and are represented by: <IMAGE> wherein R1-4 are independently selected from the group consisting of hydrogen, halogen, nitro, cyano, alkylmercapto, arylmercapto, dialkylamine, alkyl, aryl, alkoxy, aryloxy and heterocyclic radicals or R1 and R3 when taken together can form a cycloalkyl or heterocyclic ring; X' can also be selected from a group consisting of chloro radicals, substituted or unsubstituted alkoxy, aryloxy, amino and mercapto radicals or mixtures thereof; and 20</=(w+y+z)</=50,000 per polymer. The polymers of the invention can be utilized to form protective films and can also be utilized in applications such as for molding, coatings, foams and the like.
Inventors
- 👤 William L. Hergenrother
- 👤 Adel F. Halasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:44
CPC Classifications
C; C08; C08G; C08G73/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
84 words
A polyphosphazene polymer containing units represented by the formulas: ##STR9## in which R 1-4 are independently selected for each unit from the group consisting of hydrogen, halogen, nitro, cyano, alkylmercapto, arylmercapto, dialkylamino, alkyl, aryl, alkoxy, aryloxy, and heterocyclic radicals or R 1 and R 3 taken together form a cycloalkyl or heterocyclic ring; wherein X' is the same as X or is selected from the group consisting of chloro radicals and substituted and unsubstituted alkoxy, aryloxy, amino, mercapto radicals and mixtures thereof, and 20≦(W+Y+Z)≦50,000.
Claim 2
Dependent Claim
84 words
A polyphosphazene polymer containing units represented by the formulas: ##STR9## in which R 1-4 are independently selected for each unit from the group consisting of hydrogen, halogen, nitro, cyano, alkylmercapto, arylmercapto, dialkylamino, alkyl, aryl, alkoxy, aryloxy, and heterocyclic radicals or R 1 and R 3 taken together form a cycloalkyl or heterocyclic ring; wherein X' is the same as X or is selected from the group consisting of chloro radicals and substituted and unsubstituted alkoxy, aryloxy, amino, mercapto radicals and mixtures thereof, and 20≦(W+Y+Z)≦50,000.
Claim 3
Dependent Claim
24 words
The polymer or claim 1 in which one of the group R 2 and R 4 or R 3 and R 4 are hydrogen.
Claim 4
Dependent Claim
12 words
The polymer of claim 1 in which X is derived from indene.
Claim 5
Dependent Claim
12 words
The polymer of claim 3 in which X' is derived from trifluoroethanol.
Claim 6
Dependent Claim
12 words
The polymer of claim 3 in which X' is derived from parachlorophenol.
Claim 7
Dependent Claim
23 words
The polymer of claim 1 in which X is derived from a group consisting of styrene, alpha-methylstyrene, propylene, perfluorocyclohexene and allyl phenyl ether.
Claim 8
Dependent Claim
12 words
The polymer of claim 6 in which X' is derived from trifluoroethanol.
Claim 9
Dependent Claim
12 words
The polymer of claim 6 in which X' is derived from para-chlorophenol.
Claim 10
Dependent Claim
13 words
The polymer of claim 6 in which X' is the same as X.
Claim 11
Dependent Claim
24 words
The polymer of claim 1 in which X' is derived from a compound selected from a group consisting of trifluoroethanol, parachlorophenol, and mixtures thereof.
Claim 12
Dependent Claim
13 words
The polymer of claim 1 in which the polymer units are randomly distributed.
Claim 13
Independent Claim
141 words
A method of preparing polyphosphazene polymer containing units represented by the formula: ##STR10## in which R 1-4 are independently selected for each unit from the group consisting of hydrogen, halogen, nitro, cyano, alkylmercapto, arylmercapto, dialkylamino, alkyl, aryl, alkoxy, aryloxy, and heterocyclic radicals or R 1 and R 3 taken together form a cycloalkyl or heterocyclic ring; wherein X' is the same as X or is selected from the group consisting of chloro radicals and substituted and unsubstituted alkoxy, aryloxy, amino, mercapto radicals and mixtures thereof; said method comprising reacting a poly(dichlorophosphazene) polymer having a formula --(NPCl 2 ) n --, wherein n is from 20 to 50,000, with an alkenyl group containing compound and optionally a compound selected from a group consisting of substituted and unsubstituted alkanols, aromatic alcohols, amines, mercaptans, and mixtures thereof in the presence of a tertiary amine.
Claim 14
Independent Claim
141 words
A method of preparing polyphosphazene polymer containing units represented by the formula: ##STR10## in which R 1-4 are independently selected for each unit from the group consisting of hydrogen, halogen, nitro, cyano, alkylmercapto, arylmercapto, dialkylamino, alkyl, aryl, alkoxy, aryloxy, and heterocyclic radicals or R 1 and R 3 taken together form a cycloalkyl or heterocyclic ring; wherein X' is the same as X or is selected from the group consisting of chloro radicals and substituted and unsubstituted alkoxy, aryloxy, amino, mercapto radicals and mixtures thereof; said method comprising reacting a poly(dichlorophosphazene) polymer having a formula --(NPCl 2 ) n --, wherein n is from 20 to 50,000, with an alkenyl group containing compound and optionally a compound selected from a group consisting of substituted and unsubstituted alkanols, aromatic alcohols, amines, mercaptans, and mixtures thereof in the presence of a tertiary amine.
Claim 15
Dependent Claim
28 words
The method of claim 12 in which X is derived from a compound selected from the group consisting of indene, styrene, alpha-methylstyrene, propylene, perfluorocyclohexene and allyl phenyl ether.
Claim 16
Dependent Claim
21 words
The method of claim 13 in which the alkanol is selected from the group consisting of trifluoroethanol, para-chlorophenol, and mixtures thereof.
Claim 17
Dependent Claim
13 words
The method of claim 13 in which X' is the same as X.
Claim 18
Dependent Claim
12 words
The method of claim 12 in which the tertiary amine is triethylamine.
References Cited (Backward Citations)
US3169933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |