US4258173A
Expired / Lapsed
US
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Polyphosphazene polymers containing monoetheroxy and polyetheroxy substituents
Assignee: Bridgestone Firestone Inc
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Filing: 1979-10-11
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Granted: 1981-03-24
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Expires: 1999-10-11
Abstract
Abstract Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: ##STR1## wherein X is R(OR') n O-- in which R is alkyl containing from 1 to 20 carbon atoms, aryl, alkylaryl or arylalkyl, R' is an alkylene radical and n is an integer from 1 to 70; wherein X' is X or is selected from the group consisting of substituted or unsubstituted alkoxy, alkenyloxy, aryloxy, alkenylaryloxy, amino and mercapto groups and wherein 20≦(a+b+c)≦50,000 per polymer. The polymers of the invention can be utilized to form films and may also be utilized in applications for moldings, coatings, foams and the like.
Inventors
- 👤 Donald N. Schulz
- 👤 Tai C. Cheng
- 👤 Thomas A. Antkowiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:52
CPC Classifications
C; C08; C08L; C08L85/00; C08L85/02; C08G; C08G73/00; C08G79/00; C08G79/02; C08G79/025; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J2385/00; C08J2385/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
A polyphosphazene polymer containing repeating units represented by the formulas: ##STR7## wherein X is R(OR') n O-- in which R is alkyl containing from 1 to 20 carbon atoms, aryl, alkylaryl or arylalkyl, R' is an alkylene radical and n is an integer from 3 to 15; wherein X' is X or is selected from the group consisting of substituted or unsubstituted alkoxy, alkenyloxy, aryloxy, alkenylaryloxy, amino and mercapto groups and wherein 20≦(a+b+c)≦50,000 per polymer.
Claim 2
Dependent Claim
75 words
A polyphosphazene polymer containing repeating units represented by the formulas: ##STR7## wherein X is R(OR') n O-- in which R is alkyl containing from 1 to 20 carbon atoms, aryl, alkylaryl or arylalkyl, R' is an alkylene radical and n is an integer from 3 to 15; wherein X' is X or is selected from the group consisting of substituted or unsubstituted alkoxy, alkenyloxy, aryloxy, alkenylaryloxy, amino and mercapto groups and wherein 20≦(a+b+c)≦50,000 per polymer.
Claim 3
Dependent Claim
25 words
The polymer of claim 1 wherein X and X' are C 8 H 17 C 6 H 4 (OCH 2 CH 2 ) 3 O--.
Claim 4
Dependent Claim
25 words
The polymer of claim 1 wherein X and X' are C 8 H 17 C 6 H 4 (CH 2 CH 2 O) 9-10 O--.
Claim 5
Dependent Claim
31 words
The polymer of claim 1 wherein X is C 8 H 17 C 6 H 4 (OCH 2 CH 2 ) 3 O-- and X' is CF 3 CH 2 O--.
Claim 6
Dependent Claim
11 words
The polymer of claim 1 wherein R is an alkylaryl radical.
Claim 7
Independent Claim
91 words
A method for preparing a water-soluble polyphosphazene polymer containing repeating units represented by the formula: ##STR8## wherein X is C 8 H 17 C 6 H 4 (CH 2 CH 2 O) 9-10 O-- and wherein said polymer contains from 20 to 50,000 of said units; said method comprising reacting a poly(dichlorophosphazene) having the formula --(NPCl 2 ) n --, in which n is from 20 to 50,000, with C 8 H 17 C 6 H 4 (OCH 2 CH 2 ) 9-10 OH in the presence of a tertiary amine.
Claim 8
Independent Claim
91 words
A method for preparing a water-soluble polyphosphazene polymer containing repeating units represented by the formula: ##STR8## wherein X is C 8 H 17 C 6 H 4 (CH 2 CH 2 O) 9-10 O-- and wherein said polymer contains from 20 to 50,000 of said units; said method comprising reacting a poly(dichlorophosphazene) having the formula --(NPCl 2 ) n --, in which n is from 20 to 50,000, with C 8 H 17 C 6 H 4 (OCH 2 CH 2 ) 9-10 OH in the presence of a tertiary amine.
Claim 9
Dependent Claim
11 words
The method of claim 6 wherein said tertiary amine is triethylamine.
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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 |