US4182834A
Expired / Lapsed
US
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Polyphosphazene copolymers containing substituents from tetraalkyl titanate
Assignee: Bridgestone Firestone Inc
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Filing: 1978-09-08
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Granted: 1980-01-08
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Expires: 1998-09-08
Abstract
Abstract Polyphosphazene copolymers are prepared which contain randomly distributed units represented by the formulas: <IMAGE> wherein X is -OTi(OR)3 in which R is a branched, straight chain or cyclic alkyl group containing from 1 to 12 carbon atoms or mixtures thereof, and wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups. The alkyl groups may vary in carbon chain length or structure within the titanate or all be the same. The copolymers of the invention can be utilized to form protective films and may also be utilized in applications such as for moldings, coatings, and the like. The copolymers of this invention also crosslink at room temperature in the presence of water.
Inventors
- 👤 William L. Hergenrother
- 👤 Adel F. Halasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:21
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
60 words
A polyphosphazene copolymer containing randomly distributed units represented by the formulas: ##STR6## wherein X is --OTi(OR) 3 in which R is selected from the group consisting of branched, straight chain and cyclic alkyl groups containing from 1 to 12 carbon atoms and where X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups.
Claim 2
Dependent Claim
60 words
A polyphosphazene copolymer containing randomly distributed units represented by the formulas: ##STR6## wherein X is --OTi(OR) 3 in which R is selected from the group consisting of branched, straight chain and cyclic alkyl groups containing from 1 to 12 carbon atoms and where X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups.
Claim 3
Dependent Claim
11 words
The copolymer of claim 1 wherein all R groups are identical.
Claim 4
Dependent Claim
11 words
The copolymer of claim 1 wherein the R groups are dissimilar.
Claim 5
Dependent Claim
22 words
The copolymer of claim 1 wherein X is --OTi(OC 4 H 9 ) 3 and X' is --OCH 2 CF 3 .
Claim 6
Dependent Claim
22 words
The copolymer of claim 1 wherein X is --OTi(OC 4 H 9 ) 3 and X' is p--ClC 6 H 4 O--.
Claim 7
Independent Claim
114 words
A method of preparing polyphosphazene copolymers containing randomly distributed units represented by the formulas: ##STR7## wherein X is --OTi(OR) 3 in which R is selected from the group consisting of branched, straight chain and cyclic alkyl radicals containing from 1 to 12 carbon atoms and wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino, and 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 mixture consisting of a tetraalkyl titanate and a substituted or unsubstituted aliphatic alcohol, aromatic alcohol, amino compound, or mercaptan compound in the presence of a tertiary amine.
Claim 8
Independent Claim
114 words
A method of preparing polyphosphazene copolymers containing randomly distributed units represented by the formulas: ##STR7## wherein X is --OTi(OR) 3 in which R is selected from the group consisting of branched, straight chain and cyclic alkyl radicals containing from 1 to 12 carbon atoms and wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino, and 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 mixture consisting of a tetraalkyl titanate and a substituted or unsubstituted aliphatic alcohol, aromatic alcohol, amino compound, or mercaptan compound in the presence of a tertiary amine.
Claim 9
Dependent Claim
12 words
The method of claim 6 wherein said tetraalkyl titanate is tetrabutyl titanate.
Claim 10
Dependent Claim
14 words
The method of claim 6 wherein said mixture consists of tetrabutyl titanate and trifluoroethanol.
Claim 11
Dependent Claim
14 words
The method of claim 6 wherein said mixture consists of tetrabutyl titanate and p-chlorophenol.
Claim 12
Dependent Claim
11 words
The method of claim 6 wherein said tertiary amine is triethylamine.
References Cited (Backward Citations)
US3563918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |