US4720533A
Expired / Lapsed
US
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Polyorganophosphazene curable in atmosphere
Assignee: Albemarle Corp
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Filing: 1986-07-22
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Granted: 1988-01-19
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Expires: 2006-07-22
Abstract
Abstract Organophosphazene polymers having acyloxysilyl or alkoxysilyl substituents are curable at room temperature when exposed to atmosphere containing moisture.
Inventors
- 👤 F. Alexander Pettigrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:57
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/025
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
92 words
A polyorganophosphazene which is moisture curable, said polyorganophosphazene comprising a polymer having in any sequence and proportion, repeating units: ##STR8## wherein R 1 is a substituted or unsubstituted alkoxide or aryloxide group and R 2 is a group selected from ##STR9## wherein Z is an organo group, R 3 and R 5 are H or hydrocarbyl, R 4 is H or hydrocarbyl, R 6 is lower alkyl, p and s are integers from 1 to 3, q and t are integers from 0 to 2, (p+q) equal 3, and (s+t) equal 3.
Claim 2
Dependent Claim
92 words
A polyorganophosphazene which is moisture curable, said polyorganophosphazene comprising a polymer having in any sequence and proportion, repeating units: ##STR8## wherein R 1 is a substituted or unsubstituted alkoxide or aryloxide group and R 2 is a group selected from ##STR9## wherein Z is an organo group, R 3 and R 5 are H or hydrocarbyl, R 4 is H or hydrocarbyl, R 6 is lower alkyl, p and s are integers from 1 to 3, q and t are integers from 0 to 2, (p+q) equal 3, and (s+t) equal 3.
Claim 3
Dependent Claim
13 words
A polyorganophosphazene of claim 1 wherein said repeating units form a linear polymer.
Claim 4
Dependent Claim
13 words
A polyorganophosphazene of claim 1 wherein said repeating units form a cyclic polymer.
Claim 5
Dependent Claim
10 words
A polyorganophosphazene of claim 1 wherein R 2 is ##STR10##
Claim 6
Dependent Claim
13 words
A polyorganophosphazene of claim 4 wherein R 4 is a C 1-12 alkyl.
Claim 7
Dependent Claim
10 words
A polyorganophosphazene of claim 5 wherein R 4 is methyl.
Claim 8
Dependent Claim
17 words
A polyorganophosphazene of claim 6 wherein p is 2, q is 1 and R 3 is methyl.
Claim 9
Dependent Claim
23 words
A polyorganophosphazene of claim 4 wherein Z is selected from divalent alkylenoxy, arylenoxy or alkylene aryloxy groups wherein oxygen is bonded to phosphorus.
Claim 10
Dependent Claim
9 words
A polyorganophosphazene of claim 8 wherein Z is ##STR11##
Claim 11
Dependent Claim
10 words
A polyorganophosphazene of claim 9 wherein R 4 is methyl.
Claim 12
Dependent Claim
17 words
A polyorganophosphazene of claim 10 wherein p is 2, q is 1 and R 3 is methyl.
Claim 13
Dependent Claim
11 words
A polyorganophosphazene of claim 1 wherein R 2 is --Z--Si(--R.sub.5).sub.t (--OR.sub.6).sub.s.
Claim 14
Dependent Claim
13 words
A polyorganophosphazene of claim 12 wherein R 6 is a C 1-4 alkyl.
Claim 15
Dependent Claim
15 words
A polyorganophosphazene of claim 13 wherein R 5 is methyl and R 6 is ethyl.
Claim 16
Dependent Claim
23 words
A polyorganophosphazene of claim 12 wherein Z is selected from divalent alkylenoxy, arylenoxy or alkylene aryloxy groups wherein oxygen is bonded to phosphorus.
Claim 17
Dependent Claim
9 words
A polyorganophosphazene of claim 15 wherein Z is ##STR12##
Claim 18
Dependent Claim
18 words
A polyorganophosphazene of claim 16 wherein R 6 is a C 1-4 alkyl and R 5 is methyl.
Claim 19
Dependent Claim
13 words
A polyorganophosphazene of claim 17 wherein s is 2 and t is 1.
Claim 20
Dependent Claim
18 words
A polyorganophosphazene of claim 1 wherein R 1 is selected from substituted or unsubstituted alkoxy or aryloxy groups.
Claim 21
Dependent Claim
18 words
A polyorganophosphazene of claim 19 wherein R 1 is phenoxy, alkylphenoxy, alkoxyphenoxy, halophenoxy, alkenylphenoxy or any combination thereof.
Claim 22
Dependent Claim
10 words
A polyorganophosphazene of claim 20 wherein R 2 is ##STR13##
Claim 23
Dependent Claim
20 words
A polyorganophosphazene of claim 21 wherein R 3 and R 4 are methyl, p is 2 and q is 1.
Claim 24
Dependent Claim
14 words
A polyorganophosphazene of claim 22 wherein R 1 is phenoxy, alkylphenoxy or combinations thereof.
Claim 25
Dependent Claim
9 words
A polyorganophosphazene of claim 23 wherein Z is ##STR14##
Claim 26
Dependent Claim
11 words
A polyorganophosphazene of claim 20 wherein R 2 is --Z--Si(--R.sub.5).sub.t (--OR.sub.6).sub.s.
Claim 27
Dependent Claim
13 words
A polyorganophosphazene of claim 25 wherein R 6 is a C 1-4 alkyl.
Claim 28
Dependent Claim
15 words
A polyorganophosphazene of claim 26 wherein R 6 is ethyl and R 5 is methyl.
Claim 29
Dependent Claim
14 words
A polyorganophosphazene of claim 27 wherein R 1 is phenoxy, alkylphenoxy or combinations thereof.
Claim 30
Dependent Claim
15 words
A polyorganophosphazene of claim 28 wherein Z is ##STR15## and oxygen is bonded to phosphorus.
Claim 31
Dependent Claim
54 words
An organophosphazene polymer which is curable on exposure to the atmosphere containing an average amount of water, said polyphosphazene comprising a series of ##STR16## units in which at least a portion of the substituents on phosphorus contain an acyloxysilyl group and the remaining groups are selected from substituted or unsubstituted alkoxy and aryloxy groups.
Claim 32
Dependent Claim
54 words
An organophosphazene polymer which is curable on exposure to the atmosphere containing an average amount of water, said polyphosphazene comprising a series of ##STR16## units in which at least a portion of the substituents on phosphorus contain an acyloxysilyl group and the remaining groups are selected from substituted or unsubstituted alkoxy and aryloxy groups.
Claim 33
Dependent Claim
12 words
A polymer of claim 30 wherein said acyloxysilyl is an acetyldimethylsilyl group.
Claim 34
Dependent Claim
13 words
A polymer of claim 30 wherein said acyloxysilyl group is a diacetylmethylsilyl group.
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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) | 1991-01-18 | 1991-07-20 | 1992-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-18 | 1995-07-20 | 1996-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-18 | 1999-07-20 | 2000-01-19 | $7700.00 | Window Closed / Lapsed |