US4242491A
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Polyphosphazene polymers containing substituents of acrylate functionality
Assignee: Bridgestone Firestone Inc
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Filing: 1978-09-08
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Granted: 1980-12-30
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Expires: 1998-09-08
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 is selected from the group consisting of hydrogen and a methyl group; R2 and R3 are independently selected for each carbon atom from a group consisting of hydrogen and alkyl radical containing from 1 to 6 carbon atoms; 2</=m</=20; X' can additionally be selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals, and mixtures thereof, which are compatible with an alkoxy acrylate substituent and are known in the state of the art of polyphosphazene technology; 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
2026-10-23 06:29
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/025; C08L; C08L85/00; C08L85/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
95 words
A polyphosphazene polymer comprised of units represented by the formulas: ##STR9## in which R 1 is selected from a group consisting of hydrogen and --CH 3 ; and R 2 and R 3 are independently selected for each carbon atom from a group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms; and wherein X is independently selected for each polymer unit, X' is the same as X or is selected from a group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals, or mixtures thereof; 2≦m≦20, and w+y+z≧20.
Claim 2
Dependent Claim
95 words
A polyphosphazene polymer comprised of units represented by the formulas: ##STR9## in which R 1 is selected from a group consisting of hydrogen and --CH 3 ; and R 2 and R 3 are independently selected for each carbon atom from a group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms; and wherein X is independently selected for each polymer unit, X' is the same as X or is selected from a group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals, or mixtures thereof; 2≦m≦20, and w+y+z≧20.
Claim 3
Dependent Claim
66 words
The polymer of claim 17 in which X and X' are --O--(CR 2 R 3 ) m --O 2 C--CR 1 ═CH 2 wherein R 1 is selected from the group consisting of hydrogen and --CH 3 ; R 2 and R 3 are independently selected for each carbon atom from a group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms.
Claim 4
Dependent Claim
12 words
The polymer in claim 2 in which X and X' are ##STR10##
Claim 5
Dependent Claim
12 words
The polymer in claim 2 in which X and X' are ##STR11##
Claim 6
Dependent Claim
97 words
The polymer of claim 17 wherein X is --O--(CR 2 R 3 ) m --O 2 C--CR 1 ═CH 2 in which R 1 is selected from a group consisting of hydrogen and --CH 3 ; and R 2 and R 3 are independently selected for each carbon atom from the group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms, wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals, or mixtures thereof, and wherein the units of the polyphosphazene polymer are randomly distributed.
Claim 7
Dependent Claim
26 words
The poly of claim 5 wherein X is --O(CH 2 ) 2 --O 2 CCCH 3 CH 2 and X' is --OCH 2 CF 3 .
Claim 8
Dependent Claim
26 words
The polymer of claim 5 wherein X is --O(CH 2 ) 3 --O 2 CCCH 3 CH 2 and X' is --OCH 2 CF 3 .
Claim 9
Dependent Claim
37 words
The polymer of claim 5 wherein X is --O(CH 2 ) 2 --OCCCH 3 CH 2 and X' is a mixture of --OC 6 H 4 Cl and --OC 6 H 4 C 4 H 9 .
Claim 10
Independent Claim
158 words
A method of preparing polyphosphazene polymers comprised of units represented by the formulas: ##STR12## in which R 1 is selected from a group consisting of hydrogen and --CH 3 ; and R 2 and R 3 are independently selected for each carbon atom from a group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms; and wherein X' is the same as X or is selected from a group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals, or mixtures thereof; and 2≦m≦20; said method comprising reacting a poly(dichlorophosphazene) polymer having a formula --(NPCl 2 ) n -- where n is from 20 to 50,000 with a hydroxy containing alkyl acrylate ester or a mixture consisting of a hydroxy containing alkyl acrylate ester and a compound selected from a group consisting of a substituted and unsubstituted alkanol, aryl alcohol, amines and mercaptans or mixtures thereof, in the presence of a tertiary amine.
Claim 11
Independent Claim
158 words
A method of preparing polyphosphazene polymers comprised of units represented by the formulas: ##STR12## in which R 1 is selected from a group consisting of hydrogen and --CH 3 ; and R 2 and R 3 are independently selected for each carbon atom from a group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms; and wherein X' is the same as X or is selected from a group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals, or mixtures thereof; and 2≦m≦20; said method comprising reacting a poly(dichlorophosphazene) polymer having a formula --(NPCl 2 ) n -- where n is from 20 to 50,000 with a hydroxy containing alkyl acrylate ester or a mixture consisting of a hydroxy containing alkyl acrylate ester and a compound selected from a group consisting of a substituted and unsubstituted alkanol, aryl alcohol, amines and mercaptans or mixtures thereof, in the presence of a tertiary amine.
Claim 12
Dependent Claim
14 words
The method of claim 9 wherein the hydroxy containing alkyl acrylate ester is 2-hydroxyethylmethacrylate.
Claim 13
Dependent Claim
14 words
The method of claim 9 wherein the hydroxy containing alkyl acrylate ester is 3-hydroxypropylmethacrylate.
Claim 14
Dependent Claim
13 words
The method of claim 9 wherein the mixture consists of 2-hydroxyethyl-methacrylate and trifluoroethanol.
Claim 15
Dependent Claim
13 words
The method of claim 9 wherein the mixture consists of 3-hydroxypropyl-methacrylate and trifluoroethanol.
Claim 16
Dependent Claim
15 words
The method of claim 9 wherein the mixture consists of 2-hydroxyethyl-methacrylate, chlorophenol and tert-butyl phenol.
Claim 17
Dependent Claim
15 words
The method of claim 9 wherein the mixture consists of 3-hydroxypropyl-methacrylate, chlorophenol and tert-butyl phenol.
Claim 18
Dependent Claim
11 words
The method of claim 9 wherein the tertiary amine is triethylamine.
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) | 1983-12-30 | 1984-06-30 | 1984-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-30 | 1988-06-30 | 1988-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-30 | 1992-06-30 | 1992-12-30 | $7700.00 | Window Closed / Lapsed |