US4225697A
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Polyphosphazene polymers containing dialkyl alkylene diamino substituents
Assignee: Bridgestone Firestone Inc
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Filing: 1978-11-03
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Granted: 1980-09-30
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Expires: 1998-11-03
Abstract
Abstract Polyphosphazene polymers are prepared which contain units represented by the formulas: <IMAGE> wherein X is <IMAGE> in which R is an alkyl group of 1 to 8 carbon atoms and a is an integer of 2 to 8 and wherein X' is the same as X for homopolymers and for copolymers X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino or mercapto groups. The polymers of the invention can be utilized to form protective films and may also be utilized in applications such as moldings, coatings and the like.
Inventors
- 👤 William L. Hergenrother
- 👤 Adel F. Halasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:45
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
72 words
A polyphosphazene polymer containing units represented by the formulas: ##STR11## wherein X is ##STR12## wherein R is an alkyl group of 1 to 8 carbon atoms and a is an integer of 2 to 8, and wherein X' is the same as X or is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto radicals, and wherein said polymer contains from 20 to 50,000 of said units.
Claim 2
Dependent Claim
72 words
A polyphosphazene polymer containing units represented by the formulas: ##STR11## wherein X is ##STR12## wherein R is an alkyl group of 1 to 8 carbon atoms and a is an integer of 2 to 8, and wherein X' is the same as X or is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto radicals, and wherein said polymer contains from 20 to 50,000 of said units.
Claim 3
Dependent Claim
19 words
The polymer of claim 1 wherein X is (C 2 H 5 ) 2 N--(CH 2 ) 3 --NH--.
Claim 4
Dependent Claim
21 words
The polymer of claim 1 wherein X and X' are (C 2 H 5 ) 2 N--(CH 2 ) 3 --NH--.
Claim 5
Dependent Claim
27 words
The polymer of claim 1 wherein X is (C 2 H 5 ) 2 N--(CH 2 ) 3 --NH-- and X' is CF 3 CH 2 O--.
Claim 6
Dependent Claim
25 words
The polymer of claim 1 wherein X is (CH 3 ) 2 N--(CH 2 ) 3 --NH-- and X' is p--ClC 6 H 5 O--.
Claim 7
Independent Claim
133 words
A method of preparing polyphosphazene polymers containing units represented by the formulas: ##STR13## wherein X is a dialkyl alkylene diamino substituent having the formula --NH--(CH 2 ) a --NR 2 , in which R is an alkyl group of 1 to 8 carbons and a is an integer from 2 to 8, and wherein X' is the same as X or is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino or mercapto groups; said method comprising reacting a poly(dichlorophosphazene) polymer having the formula --(NPCl 2 ) n --, wherein n is from 20 to 50,000 with a dialkyl alkylene diamine or a mixture consisting of a dialkyl alkylene diamine and a substituted or unsubstituted aliphatic or aromatic alcohol, amino compound or mercaptan in the presence of a tertiary amine.
Claim 8
Independent Claim
133 words
A method of preparing polyphosphazene polymers containing units represented by the formulas: ##STR13## wherein X is a dialkyl alkylene diamino substituent having the formula --NH--(CH 2 ) a --NR 2 , in which R is an alkyl group of 1 to 8 carbons and a is an integer from 2 to 8, and wherein X' is the same as X or is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino or mercapto groups; said method comprising reacting a poly(dichlorophosphazene) polymer having the formula --(NPCl 2 ) n --, wherein n is from 20 to 50,000 with a dialkyl alkylene diamine or a mixture consisting of a dialkyl alkylene diamine and a substituted or unsubstituted aliphatic or aromatic alcohol, amino compound or mercaptan in the presence of a tertiary amine.
Claim 9
Dependent Claim
14 words
The method of claim 6 wherein said dialkyl alkylene diamine is N,N-diethyl propylene diamine.
Claim 10
Dependent Claim
21 words
The method of claim 6 wherein said mixture is a mixture of a dialkyl alkylene diamine and a substituted aliphatic alcohol.
Claim 11
Dependent Claim
21 words
The method of claim 8 wherein said dialkyl alkylene diamine is N,N-diethyl propylene diamine and said substituted aliphatic alcohol is trifluoroethanol.
Claim 12
Dependent Claim
21 words
The method of claim 6 wherein said mixture is a mixture of a dialkyl alkylene diamine and a substituted aromatic alcohol.
Claim 13
Dependent Claim
21 words
The method of claim 10 wherein said dialkyl alkylene diamine is N,N-dimethyl propylene diamine and said substituted aromatic alcohol is p-chlorophenol.
Claim 14
Dependent Claim
13 words
The method of claim 6 wherein said tertiary amine is pyridine or triethylamine.
References Cited (Backward Citations)
US3344087A
Cited
US4018822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |